{"689936":{"#nid":"689936","#data":{"type":"event","title":"MS Defense by Mingqi Wang","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETHE SCHOOL OF INDUSTRIAL DESIGN\u003C\/strong\u003E\u202f\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EGEORGIA INSTITUTE OF TECHNOLOGY\u003C\/strong\u003E\u202f\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EUnder the provisions of the regulations for the degree\u003C\/strong\u003E\u202f\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EMASTER OF INDUSTRIAL DESIGN\u003C\/strong\u003E\u202f\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003Eon\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EFriday, May 1, 2026\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E10:00 a.m.\u0026nbsp;\u2013 11:00 a.m. EST\u003C\/strong\u003E\u202f\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EWest Architecture 155\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETeams Link:\u0026nbsp;\u003C\/strong\u003E\u003Ca href=\u0022https:\/\/teams.microsoft.com\/meet\/29404818118672?p=PsXkNbBc5fQRg39Tgk\u0022 target=\u0022_blank\u0022 title=\u0022https:\/\/teams.microsoft.com\/meet\/29404818118672?p=PsXkNbBc5fQRg39Tgk\u0022\u003EMingqi Wang Thesis Defense | Meeting-Join | Microsoft Teams\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EMeeting ID: 294 048 181 186 72\u003C\/p\u003E\u003Cp\u003EPasscode: WV6Mj2YH\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EMingqi Wang\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003Ewill present a\u0026nbsp;thesis\u0026nbsp;defense entitled\u003Cstrong\u003E,\u202f\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u0022Designing for Breathing-Stroke Coordination Awareness and Training in Front Crawl Swimming\u0022\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u202fAdvisor:\u202f\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Yixiao Wang, Georgia Tech School of Industrial Design\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u202f\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Eunsook Kwon, Georgia Tech School of Industrial Design\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDr. Alexander T. Adams, Georgia Tech School of Interactive Computing\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EFaculty and students are invited to attend this presentation.\u202f\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract\u202f\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EBreathing-stroke coordination in front crawl swimming is a skill most swimmers cannot directly perceive or correct in real time. Every breath requires precise lateral head rotation timed to body roll and the arm pull cycle, yet swimmers have no direct view of their own mechanics while in motion. Traditional coaching addresses this through delayed verbal feedback, and while commercial swimming technology has expanded, no existing product targets breathing-stroke coordination specifically.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EThis thesis investigates how technology can support swimmers\u0027 awareness of breathing-stroke coordination in front crawl, with a focus on recreational and developing swimmers. The research follows a two-phase design process. Phase 1 consisted of semi-structured interviews with 16 swimmers and coaches spanning beginner through elite levels, analyzed through thematic analysis to characterize how coordination is experienced across skill levels and to derive design guidelines. Phase 2 developed a virtual reality training prototype grounded in these guidelines, presenting synchronized hand trajectory visualizations and spatial audio cues to make the timing relationship between stroke mechanics and breathing windows explicitly visible. A feasibility pilot study with seven amateur swimmers was conducted to explore the prototype\u0027s usability and its potential as a coordination training tool.\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cstrong\u003EDesigning for Breathing-Stroke Coordination Awareness and Training in Front Crawl Swimming\u003C\/strong\u003E\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Designing for Breathing-Stroke Coordination Awareness and Training in Front Crawl Swimming"}],"uid":"27707","created_gmt":"2026-04-21 19:46:42","changed_gmt":"2026-04-21 19:47:29","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-01T10:00:00-04:00","event_time_end":"2026-05-01T11:00:00-04:00","event_time_end_last":"2026-05-01T11:00:00-04:00","gmt_time_start":"2026-05-01 14:00:00","gmt_time_end":"2026-05-01 15:00:00","gmt_time_end_last":"2026-05-01 15:00:00","rrule":null,"timezone":"America\/New_York"},"location":"West Architecture 155","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"111531","name":"ms defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689930":{"#nid":"689930","#data":{"type":"event","title":"PhD Proposal by Xinqiang Rao","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EPhD Thesis Proposal\u0026nbsp;Announcement\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EStudent Name: Xinqiang Rao\u003C\/p\u003E\u003Cp\u003EThesis Title: Multiscale Computational Modeling of Defect-Controlled Degradation in Layered Cathode Materials\u003C\/p\u003E\u003Cp\u003EThesis Advisor: Dr. Julia H. Yang\u003C\/p\u003E\u003Cp\u003EThesis Co-Advisor: N\/A\u003C\/p\u003E\u003Cp\u003ECommittee Members: Dr. Nian Liu, ChBE; Dr. Andrew J. Medford, ChBE; Dr. Solomon Tolulope Oyakhire, ChBE; Dr. Seung Soon Jang, MSE\u003C\/p\u003E\u003Cp\u003EDate: 5\/5\/2026\u003C\/p\u003E\u003Cp\u003ETime: 1:00 to 3:00 PM ET\u003C\/p\u003E\u003Cp\u003ELocation: Ford ES\u0026amp;T Conference Room 2229\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EMultiscale Computational Modeling of Defect-Controlled Degradation in Layered Cathode Materials\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Multiscale Computational Modeling of Defect-Controlled Degradation in Layered Cathode Materials"}],"uid":"27707","created_gmt":"2026-04-21 17:33:44","changed_gmt":"2026-04-21 17:34:09","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-05T13:00:00-04:00","event_time_end":"2026-05-05T15:00:00-04:00","event_time_end_last":"2026-05-05T15:00:00-04:00","gmt_time_start":"2026-05-05 17:00:00","gmt_time_end":"2026-05-05 19:00:00","gmt_time_end_last":"2026-05-05 19:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Ford ES\u0026T Conference Room 2229","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689928":{"#nid":"689928","#data":{"type":"event","title":"PhD Defense by Seonggeon Cho","body":[{"value":"\u003Cp\u003ESeonggeon Cho\u003Cbr\u003EBME PhD Defense Presentation\u003Cbr\u003E\u003Cbr\u003EDate: 2026-05-06\u003Cbr\u003ETime: May 6th 1PM-3PM\u003Cbr\u003ELocation \/ Meeting Link: N600\/https:\/\/timeful.app\/e\/ab778\u003Cbr\u003E\u003Cbr\u003ECommittee Members:\u003Cbr\u003EYoon, Young-sup Jo, Hanjoong Davis, Michael E Hee Cheol Cho Lee, Sang-Ho\u0026nbsp;\u003Cbr\u003E\u003Cbr\u003E\u003Cbr\u003ETitle: DIRECT CONVERSION OF HUMAN SOMATIC CELLS INTO VASCULAR TISSUE\u003Cbr\u003E\u003Cbr\u003EAbstract:\u003Cbr\u003EBackground: Directly reprogrammed endothelial cells generated using the endothelial lineage\u2013specific transcription factor Ets variant 2 (ETV2) show promise for treating ischemic cardiovascular diseases, but clinical translation remains limited by challenges in cell sourcing, safe gene delivery, and survival in ischemic tissue. To address this, we developed a direct reprogramming strategy using human urine-derived cells (U-cells) and adenoviral ETV2 (Ad-ETV2) to generate a vascular tissue\u2013like structure comprising endothelial cells (ECs), perivascular cells, and extracellular matrix (ECM). Method: U-cells from healthy male donors were transduced with Ad-ETV2 and cultured with ascorbic acid to promote ECM deposition and endothelial growth factors to induce differentiation. Endothelial characteristics were evaluated by qRT-PCR, flow cytometry, immunostaining, and single-cell RNA sequencing. ECM composition was analyzed by liquid chromatography\u2013mass spectrometry. Therapeutic efficacy was assessed in a murine hindlimb ischemia model using laser Doppler perfusion imaging, histological analysis, and gene expression profiling of ischemic tissue. Result: By day 10, robust ECM deposition enabled harvest of cells in tissue form. The resulting directly reprogrammed vascular tissue-like structure (rVT) contained 75\u201386% EC-like and mesenchymal stromal cell\u2013like populations, confirmed at the mRNA, protein, and cellular levels, along with key structural and vessel-specific ECM proteins. rVT displayed a pre-vascularized architecture, and transplantation into ischemic mouse hindlimbs significantly improved blood perfusion, reduced tissue damage, and enhanced angiogenic and arteriogenic paracrine signaling. Tissue-form transplantation showed superior engraftment over dissociated cell injection. Transplanted cells migrated into host tissue, incorporating directly into vessels or localizing perivascularly \u2014 exhibiting pericytic behavior or residing within the ACTA2-positive layer of small arterioles. These vasculogenic and arteriogenic effects persisted for up to 3 months post-transplantation. Conclusion: rVT containing endothelial-like cells can be efficiently generated from U-cells via Ad-ETV2 transduction. Transplantation improves blood flow recovery, enhances tissue protection, and provides sustained vasculogenic and arteriogenic effects in ischemic tissue. This direct tissue reprogramming strategy offers a clinically relevant approach by simultaneously generating vascular cells and supportive ECM from autologous sources, eliminating the need for synthetic biomaterials or complex purification steps.\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EDIRECT CONVERSION OF HUMAN SOMATIC CELLS INTO VASCULAR TISSUE\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"DIRECT CONVERSION OF HUMAN SOMATIC CELLS INTO VASCULAR TISSUE"}],"uid":"27707","created_gmt":"2026-04-21 17:32:19","changed_gmt":"2026-04-21 17:32:46","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-06T13:00:00-04:00","event_time_end":"2026-05-06T15:00:00-04:00","event_time_end_last":"2026-05-06T15:00:00-04:00","gmt_time_start":"2026-05-06 17:00:00","gmt_time_end":"2026-05-06 19:00:00","gmt_time_end_last":"2026-05-06 19:00:00","rrule":null,"timezone":"America\/New_York"},"location":"N600","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689927":{"#nid":"689927","#data":{"type":"event","title":"PhD Proposal by Kaely C. Hall","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp;\u003C\/strong\u003EDesigning for Representational Alignment in Human-AI Interaction\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EKaely Hall\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EPh.D. Student in Human-centered Computing\u0026nbsp;\u003C\/p\u003E\u003Cp\u003ESchool of Interactive Computing\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDate:\u0026nbsp;\u003C\/strong\u003EFriday, May 8th, 2026\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETime:\u003C\/strong\u003E\u0026nbsp; 12-3pm\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ELocation:\u003C\/strong\u003E\u0026nbsp;Coda 1215 Midtown\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETeams Info: \u003C\/strong\u003E\u003Ca href=\u0022https:\/\/teams.microsoft.com\/meet\/2255456448249?p=rIzXwFXWGRftAe5rTE\u0022\u003Ehttps:\/\/teams.microsoft.com\/meet\/2255456448249?p=rIzXwFXWGRftAe5rTE\u003C\/a\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EMeeting ID: 225 545 644 824 9\u003C\/p\u003E\u003Cp\u003EPasscode: X7zT7AR3\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDr. Jennifer Kim (advisor) - School of Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Munmun de Choudhury - School of Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Nasibeh Farahani - Mayo Clinic Platform, Mayo Clinic\u003C\/p\u003E\u003Cp\u003EDr. Andrea Parker - School of Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Vedant Das Swain - Tanden School of Engineering, New York University\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EArtificial intelligence (AI) systems are increasingly used to support how individuals construct self-representations in everyday and decision-critical contexts. For example, people use AI to draft professional materials such as cover letters and bios, or to articulate preferences in medical settings, such as birth plans that communicate values and priorities for care. In these contexts, AI use extends beyond task assistance and becomes part of the process through which individuals construct and communicate representations of themselves. However, these representations often reflect the assumptions, conventions, and statistical patterns embedded in AI systems, resulting in outputs that may not faithfully capture users\u2019 situated experiences, self-understandings, or how they intend to be understood. This dissertation introduces \u003Cstrong\u003Erepresentational alignment\u003C\/strong\u003E\u0026nbsp;as a framework for understanding this challenge: the extent to which AI-mediated representations preserve and convey a person\u2019s intended meaning across contexts. \u003Cem\u003EMisalignment\u003C\/em\u003E\u0026nbsp;arises when a person\u2019s intended self-representation diverges from the representation constructed by an AI system, often due to generalized or decontextualized interpretations of user input.\u003C\/p\u003E\u003Cp\u003EIn my completed work, I examine representational alignment in two stages: breakdown and repair. The first study analyzes how misalignment emerges in practice through neurodivergent job-seekers\u2019 use of an LLM-powered career support chatbot, showing that systems frequently misinterpret implicit cues and impose normative language and assumptions. As a result, the chatbot\u2019s \u201csupport\u201d is often grounded in misaligned representations of users\u2019 experiences and intentions. The second study examines how users work to restore alignment through interaction. I introduce \u003Cstrong\u003Ebi-directional alignment\u003C\/strong\u003E\u0026nbsp;as an interaction paradigm in which users and systems iteratively shape representations together, and investigate this concept through \u003Cem\u003ELL.me\u003C\/em\u003E, a research probe that supports iterative refinement of AI-generated professional self-representations. Findings show that alignment develops through reflection, reinterpretation, and refinement, as users incorporate tacit contextual knowledge, personal values, and anticipated audience expectations.\u003C\/p\u003E\u003Cp\u003EMy proposed work extends representational alignment to clinical settings, where individuals must construct self-representations through the articulation of expectations preferences without full visibility into how they will be interpreted or executed within care institutions. Birth planning is a particularly challenging case, as patients must express delivery preferences in advance of uncertain and evolving conditions, where those preferences may later be reinterpreted, constrained, or overridden during care. I propose \u003Cem\u003EAIDoula\u003C\/em\u003E, an interactive system designed to support patients in articulating and refining birth preferences by making clinical constraints, such as standard delivery intervention protocols, more visible and enabling iterative revision. In this context, AI-generated representations must function as \u003Cstrong\u003Eboundary objects\u003C\/strong\u003E, carrying meaning between patients and clinicians while remaining actionable in care settings. Through a two-phase evaluation with patients and clinicians, I will examine how individuals construct conditional and flexible representations under partial constraint visibility, and how these representations are interpreted and reshaped within clinical workflows. Collectively, this dissertation advances a framework for representational alignment in human\u2013AI systems, contributing empirical evidence of misalignment, interactional approaches for supporting alignment in practice, and a system that demonstrates how representations can remain meaningful under uncertain and evolving constraints.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EDesigning for Representational Alignment in Human-AI Interaction\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Designing for Representational Alignment in Human-AI Interaction"}],"uid":"27707","created_gmt":"2026-04-21 17:30:59","changed_gmt":"2026-04-21 17:31:31","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-08T12:00:00-04:00","event_time_end":"2026-05-08T15:00:00-04:00","event_time_end_last":"2026-05-08T15:00:00-04:00","gmt_time_start":"2026-05-08 16:00:00","gmt_time_end":"2026-05-08 19:00:00","gmt_time_end_last":"2026-05-08 19:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Coda 1215 Midtown  ","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689926":{"#nid":"689926","#data":{"type":"event","title":"PhD Proposal by Yanzhe Zhang","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp;\u003C\/strong\u003EBuilding and Stress-Testing Robust AI Agent Systems for Real-World Deployment\u003Cbr\u003E\u003Cstrong\u003EDate:\u0026nbsp;\u003C\/strong\u003ETuesday, May 5th, 2026\u003Cbr\u003E\u003Cstrong\u003ETime:\u0026nbsp;\u003C\/strong\u003E13:00 - 14:30 PM EDT\u003Cbr\u003E\u003Cstrong\u003ELocation:\u003C\/strong\u003E\u0026nbsp;Online\u003Cbr\u003E\u003Cstrong\u003EZoom:\u0026nbsp;\u003C\/strong\u003E\u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fgatech.zoom.us%2Fj%2F5256702657%3Fpwd%3DbWyj8saWbSVdLlrhb7PEHJYlZ5bTO5.1\u0026amp;data=05%7C02%7Ctm186%40gtvault.onmicrosoft.com%7Ca89aa66d1ea64c93ed3f08de9f187a57%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639123124661892267%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=EP5Wf34v9i4uE2wPRWdnss5dYyh8t7GgpekYTYyDMr0%3D\u0026amp;reserved=0\u0022 target=\u0022_blank\u0022\u003Ehttps:\/\/gatech.zoom.us\/j\/5256702657?pwd=bWyj8saWbSVdLlrhb7PEHJYlZ5bTO5.1\u003C\/a\u003E\u003Cbr\u003E\u003Cbr\u003E\u003Cstrong\u003EYanzhe Zhang\u003C\/strong\u003E\u003Cbr\u003EPh.D. Student in Computer Science\u003Cbr\u003ESchool of Interactive Computing\u003Cbr\u003EGeorgia Institute of Technology\u003Cbr\u003E\u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fstevenyzzhang.github.io%2Fwebsite%2F\u0026amp;data=05%7C02%7Ctm186%40gtvault.onmicrosoft.com%7Ca89aa66d1ea64c93ed3f08de9f187a57%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639123124661918969%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=BEsaoAJiGWveqjJwATntgZ6FoL4B4JSGZvTH0g6TkWk%3D\u0026amp;reserved=0\u0022 target=\u0022_blank\u0022\u003Ehttps:\/\/stevenyzzhang.github.io\/website\/\u003C\/a\u003E\u003Cbr\u003E\u003Cbr\u003E\u003Cstrong\u003ECommittee members\u003C\/strong\u003E\u003Cbr\u003EDr. Diyi Yang (advisor) - Computer Science Department, Stanford University\u003Cbr\u003EDr. Zsolt Kira (co-advisor) - School of Interactive Computing, Georgia Institute of Technology\u003Cbr\u003EDr. Kartik Goyal - School of Interactive Computing, Georgia Institute of Technology\u003Cbr\u003EDr. Polo Chau - School of Computational Science \u0026amp; Engineering, Georgia Institute of Technology\u003Cbr\u003E\u003Cbr\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E\u003Cbr\u003ELarge language models (LLMs) are rapidly evolving from passive text generators into autonomous, multimodal agents that can perceive, reason, and act in the real world. This transformation unlocks new capabilities, while also reshaping human\u2013AI interaction and introducing novel safety risks. In this thesis proposal, I present my research on building and stress-testing robust AI agent systems. First, I introduce methods for constructing and evaluating agent systems that enable new capabilities, including automatically generating websites from visual designs and generative interfaces that structure user interaction with AI systems. Second, I examine emerging risks in these agents, showing that computer-use agents are vulnerable to pop-up attacks and that large-scale simulation can systematically uncover privacy risks. Finally, I propose a framework for studying the fundamental reliability challenges underlying these failures, with the goal of understanding and improving robustness in real-world deployments.\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EBuilding and Stress-Testing Robust AI Agent Systems for Real-World Deployment\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Building and Stress-Testing Robust AI Agent Systems for Real-World Deployment"}],"uid":"27707","created_gmt":"2026-04-21 17:27:21","changed_gmt":"2026-04-21 17:27:50","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-05T13:00:00-04:00","event_time_end":"2026-05-05T14:30:41-04:00","event_time_end_last":"2026-05-05T14:30:41-04:00","gmt_time_start":"2026-05-05 17:00:00","gmt_time_end":"2026-05-05 18:30:41","gmt_time_end_last":"2026-05-05 18:30:41","rrule":null,"timezone":"America\/New_York"},"location":"ZOOM","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689924":{"#nid":"689924","#data":{"type":"event","title":"PhD Defense by Savannah L. Howard","body":[{"value":"\u003Cp\u003EIn partial fulfillment of the requirements for the degree of\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDoctor of Philosophy in Ocean Science and Engineering\u003C\/p\u003E\u003Cp\u003EIn the School of Civil and Environmental Engineering\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ESavannah L. Howard\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EWill defend her dissertation\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EFUNDAMENTAL HYDROGEOMECHANICAL PROPERTIES OF CARBONATE FORMATIONS: IMPLICATIONS FOR OFFSHORE COMPRESSED AIR ENERGY STORAGE\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EMay 5th, 2026\u0026nbsp;at 8 AM\u003C\/p\u003E\u003Cp\u003EFord ES\u0026amp;T, Room 3243 (The Ocean Room)\u003C\/p\u003E\u003Cp\u003ETeams: \u003Ca href=\u0022https:\/\/teams.microsoft.com\/meet\/252549462205277?p=eDS8aBGnt00SviVjBt\u0022 title=\u0022Meeting join\u0022\u003Ehttps:\/\/teams.microsoft.com\/meet\/252549462205277?p=eDS8aBGnt00SviVjBt\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EMeeting ID: 252 549 462 205 277\u003C\/p\u003E\u003Cp\u003EPasscode: hx7Vz7zX\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EThesis Advisors:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Sheng Dai\u003C\/p\u003E\u003Cp\u003ESchool of Civil and Environmental Engineering\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee Members:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Philipp Braun\u003C\/p\u003E\u003Cp\u003ENavier Laboratory\u003C\/p\u003E\u003Cp\u003EEcole des Ponts, Paris Tech (ENPC)\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDr. Kevin Haas\u003C\/p\u003E\u003Cp\u003ESchool of Civil and Environmental Engineering\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDr. Joseph Montoya\u003C\/p\u003E\u003Cp\u003ESchool of Biological Sciences\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDr. Zhigang Peng\u003C\/p\u003E\u003Cp\u003ESchool of Earth and Atmospheric Sciences\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003ESummary:\u003C\/p\u003E\u003Cp\u003EThe U.S. energy grid faces a critical storage challenge: renewable sources such as wind and solar generate electricity intermittently, while demand peaks occur independently of generation. Among available grid-scale storage technologies, Compressed Air Energy Storage (CAES) \u2014 which stores energy by compressing air underground and releases it through turbines on demand \u2014 offers the lowest levelized cost of storage of any current technology, surpassing batteries, pumped hydro, hydrogen, and thermal systems. Existing CAES plants (Huntorf, Germany; McIntosh, Alabama) use salt caverns, which are geographically restricted. Porous carbonate formations, distributed across the southeastern U.S. coastal zones where offshore wind and wave energy resources are abundant, offer a far more geographically widespread alternative \u2014 but their suitability as CAES reservoirs under realistic subsurface conditions has never been systematically characterized.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EThis dissertation presents a comprehensive laboratory characterization of three distinct carbonate formations - St. Maximin, Miami, and Hemingway. Experiments characterized the full suite of properties relevant to CAES viability, including mineralogy (XRD), density, total and accessible porosity, micro-CT pore imaging, permeability, ultrasonic wave speeds and elastic moduli, unconfined compressive strength and failure mode (via acoustic emissions), water retention curves, creep behavior, and cyclic loading response. Energy storage density was calculated directly from measured pore and mechanical properties and benchmarked against the two operating CAES plants. The results highlight that pore geometry and connectivity must be characterized jointly with porosity for meaningful CAES modeling; water retention and evaporation govern energy storage density; creep is saturation-dependent and operationally significant; and cyclic pressurization does not cause rapid structural and strength deterioration, but cumulative strain can lead to failure in long-term operation. Calculated energy storage densities for offshore carbonate CAES are competitive with, and in high-porosity cases exceed, those of existing salt cavern plants (~7.5\u201318 MJ\/m\u00b3), demonstrating the technical feasibility of porous carbonate formations as CAES reservoirs. The work establishes the first systematic experimental dataset for air\u2013water saturated carbonate reservoir media under CAES-relevant conditions, filling a critical gap in a field previously dominated by oil\u2013water and CO\u2082 storage studies. Findings directly inform site selection criteria, reservoir performance modeling, and operational safety assessments for future offshore CAES development in the southeastern U.S. \u2014 a region that combines abundant offshore renewable energy resources with extensive shallow carbonate geology.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EFUNDAMENTAL HYDROGEOMECHANICAL PROPERTIES OF CARBONATE FORMATIONS: IMPLICATIONS FOR OFFSHORE COMPRESSED AIR ENERGY STORAGE\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"FUNDAMENTAL HYDROGEOMECHANICAL PROPERTIES OF CARBONATE FORMATIONS: IMPLICATIONS FOR OFFSHORE COMPRESSED AIR ENERGY STORAGE"}],"uid":"27707","created_gmt":"2026-04-21 17:25:49","changed_gmt":"2026-04-21 17:26:23","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-05T08:00:00-04:00","event_time_end":"2026-05-05T11:00:00-04:00","event_time_end_last":"2026-05-05T11:00:00-04:00","gmt_time_start":"2026-05-05 12:00:00","gmt_time_end":"2026-05-05 15:00:00","gmt_time_end_last":"2026-05-05 15:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Ford ES\u0026T, Room 3243 (The Ocean Room)","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689923":{"#nid":"689923","#data":{"type":"event","title":"PhD Proposal by  Yueh-Chi Wu","body":[{"value":"\u003Cp\u003EYueh-Chi Wu\u003Cbr\u003EBME PhD Proposal Presentation\u003Cbr\u003E\u003Cbr\u003EDate: 2026-05-05\u003Cbr\u003ETime: 13:00-15:00PM\u003Cbr\u003ELocation \/ Meeting Link: HSRB \/ \u003Ca href=\u0022https:\/\/emory.zoom.us\/j\/93282915123\u0022\u003Ehttps:\/\/emory.zoom.us\/j\/93282915123\u003C\/a\u003E\u003Cbr\u003E\u003Cbr\u003ECommittee Members:\u003Cbr\u003EErin M. Buckley, PhD(Advisor) John Oshinski, PhD Ofer Sadan, MD, PhD Shella Keilholz, PhD David Myers, PhD\u003Cbr\u003E\u003Cbr\u003E\u003Cbr\u003ETitle: Diffuse Correlation Spectroscopy for Assessing Microvascular Cerebral Hemodynamics and Predicting Outcomes After Subarachnoid Hemorrhage\u003Cbr\u003E\u003Cbr\u003EAbstract:\u003Cbr\u003EThis proposal addresses a central unmet need in aneurysmal subarachnoid hemorrhage (SAH): the lack of bedside tools that directly measure microvascular physiology and identify patients who remain at risk for delayed cerebral ischemia despite vasospasm-directed therapy. Diffuse optical techniques, including diffuse correlation spectroscopy (DCS) and speckle contrast optical spectroscopy (SCOS), are noninvasive bedside methods that can continuously quantify regional cerebral hemodynamics and autoregulatory function. These tools therefore offer a unique opportunity to monitor brain health in real time and to move beyond conventional large-vessel surveillance toward direct assessment of treatment-responsive microvascular physiology. In Aim 1, I will determine whether microvascular cerebral blood flow (CBF) increases in response to intrathecal nicardipine treatment and whether a blunted response is associated with delayed cerebral ischemia (DCI) and exploratory functional outcome. Preliminary data support this aim: DCS detected significant increases in relative CBF after intrathecal nicardipine on treatment days 1, 2, and 3, while the largest prognostic differences by DCI and modified Rankin Scale (mRS) were observed on day 1. These findings suggest that the early microvascular response to treatment may provide clinically meaningful prognostic information. In Aim 2, I will determine whether microvascular autoregulation is impaired after SAH, whether dysfunction is worse in patients with vasospasm, and whether autoregulatory responses to treatment predict outcome. Using SCOS- and DCS-derived autoregulatory metrics, this aim will extend bedside monitoring beyond treatment- responsive flow changes to dynamic cerebrovascular control. Preliminary data suggest that autoregulatory metrics, particularly on day 2, may distinguish poor from favorable outcome, supporting the feasibility of autoregulation-based risk stratification in this population. In Aim 3, I will improve the accuracy of DCS-derived cerebral blood flow estimation in adults by comparing homogeneous, layered, modified Beer-Lambert law (MBLL)-based, and pressure-modulation-constrained approaches against arterial spin labeling MRI (ASL-MRI). Preliminary analyses show that a semi-infinite MBLL method significantly correlates with MRI-derived relative CBF change, and that a two-layer pressure-modulation MBLL approach shows even stronger agreement, suggesting that pressure-constrained layered modeling may improve separation of extracerebral and cerebral signals. Together, these studies will define treatment-responsive and autoregulatory microvascular biomarkers while strengthening the methodological foundation needed to translate DCS and SCOS into practical bedside tools for individualized monitoring and treatment guidance after SAH.\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EDiffuse Correlation Spectroscopy for Assessing Microvascular Cerebral Hemodynamics and Predicting Outcomes After Subarachnoid Hemorrhage\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Diffuse Correlation Spectroscopy for Assessing Microvascular Cerebral Hemodynamics and Predicting Outcomes After Subarachnoid Hemorrhage"}],"uid":"27707","created_gmt":"2026-04-21 17:20:58","changed_gmt":"2026-04-21 17:21:33","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-05T13:00:22-04:00","event_time_end":"2026-05-05T15:00:22-04:00","event_time_end_last":"2026-05-05T15:00:22-04:00","gmt_time_start":"2026-05-05 17:00:22","gmt_time_end":"2026-05-05 19:00:22","gmt_time_end_last":"2026-05-05 19:00:22","rrule":null,"timezone":"America\/New_York"},"location":"HSRB \/ https:\/\/emory.zoom.us\/j\/93282915123","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689922":{"#nid":"689922","#data":{"type":"event","title":"PhD Proposal by Kaige Xie","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u003C\/strong\u003E\u0026nbsp;Lifecycle-Oriented Optimization of Natural Language Generation Systems through Text Sub-Structures\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDate:\u003C\/strong\u003E\u0026nbsp;Monday, April 27th, 2026\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETime:\u003C\/strong\u003E\u0026nbsp;1:00\u20133:00 PM ET\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ELocation:\u003C\/strong\u003E\u0026nbsp;online [\u003Ca href=\u0022https:\/\/teams.microsoft.com\/meet\/293794348175007?p=H5XD7DVYM8ekfduaF9\u0022 title=\u0022https:\/\/teams.microsoft.com\/meet\/293794348175007?p=H5XD7DVYM8ekfduaF9\u0022\u003ETeams link\u003C\/a\u003E]\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EKaige Xie\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EPh.D. Student in Computer Science\u003C\/p\u003E\u003Cp\u003ESchool of Interactive Computing\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Pascal Van Hentenryck (advisor) - School of Industrial and Systems Engineering and School of Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Thomas Ploetz - School of Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Chao Zhang - School of Computational Science and Engineering, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EThis dissertation investigates how to optimize natural language generation (NLG) systems built on large language models (LLMs) from a holistic, lifecycle-oriented perspective. While recent advances in LLMs have led to substantial gains across a wide range of NLG tasks, prior research has largely focused on improving benchmark performance, often overlooking the broader challenges that arise across model training, inference, evaluation, and deployment. This dissertation argues that such a performance-centric view is insufficient for real-world NLG systems, whose success depends not only on output quality but also on efficiency, reasoning capability, evaluation fidelity, and user trust. To address this gap, the dissertation introduces a unified framework centered on text sub-structures\u2014semantically meaningful intermediate representations embedded in text\u2014and studies how their recognition and strategic utilization can improve NLG systems throughout their full lifecycle.\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EThe dissertation develops this framework across four representative NLG tasks: dialogue summarization, story generation, action plan generation, and question answering. In dialogue summarization, it shows how dialogue skeletons can facilitate more effective few-shot learning and improve cross-task prompt transfer under limited supervision. In story generation, it demonstrates how outline-based planning structures can guide LLMs toward producing more coherent and engaging narratives. In action plan generation, it examines precondition-effect dependencies as a form of latent world knowledge that enables LLMs to better model action feasibility and environmental change. In question answering, it explores sub-questions as a versatile sub-structure for both fine-grained system evaluation and explanation generation, improving the assessment of open-ended retrieval-augmented generation systems and enhancing users\u2019 ability to judge model reliability. Collectively, these studies show that text sub-structures provide a general and effective semantic scaffold for improving learning efficiency, inference-time planning and reasoning, evaluation robustness, and deployment-time user experience.\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003ELifecycle-Oriented Optimization of Natural Language Generation Systems through Text Sub-Structures\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Lifecycle-Oriented Optimization of Natural Language Generation Systems through Text Sub-Structures"}],"uid":"27707","created_gmt":"2026-04-21 17:14:05","changed_gmt":"2026-04-21 17:19:54","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-27T13:00:36-04:00","event_time_end":"2026-04-28T15:00:00-04:00","event_time_end_last":"2026-04-28T15:00:00-04:00","gmt_time_start":"2026-04-27 17:00:36","gmt_time_end":"2026-04-28 19:00:00","gmt_time_end_last":"2026-04-28 19:00:00","rrule":null,"timezone":"America\/New_York"},"location":"TEAMS","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689921":{"#nid":"689921","#data":{"type":"event","title":"Ph.D. Proposal Oral Exam - Xinyu Jiang","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp; \u003C\/strong\u003E\u003Cem\u003EHigh Trapping Bandwidth Electrostatic Levitation Platform for Inertial Navigation Applications\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Ayazi, Advisor\u003C\/p\u003E\u003Cp\u003EDr. Taylor, Chair\u003C\/p\u003E\u003Cp\u003EDr. Ansari\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe objective of the proposed research is to design a high trapping bandwidth electrostatic levitation system termed \u2018electrostatic clamping\u2019, specifically designed for Coriolis vibratory gyroscopes (CVGs) and wafer-level-packaged MEMS die. Recent breakthroughs in new MEMS design and material have pushed the MEMS CVGs to near navigation grade performance, with the anchor loss being a bottleneck. By levitating the resonating structure, we eliminate the anchor loss of the MEMS sensor, potentially pushing the quality factor (Q) to the limit of Akhiezer loss. We can also improve the bias stability of a MEMS IMU by levitation such that the sensor is decoupled from the environment. However, both applications require a rigid trapping to accurately transfer the inertia from the chassis to the sensor.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"High Trapping Bandwidth Electrostatic Levitation Platform for Inertial Navigation Applications"}],"uid":"28475","created_gmt":"2026-04-21 17:17:23","changed_gmt":"2026-04-21 17:18:35","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-08T11:00:00-04:00","event_time_end":"2026-05-08T13:00:00-04:00","event_time_end_last":"2026-05-08T13:00:00-04:00","gmt_time_start":"2026-05-08 15:00:00","gmt_time_end":"2026-05-08 17:00:00","gmt_time_end_last":"2026-05-08 17:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Room 509, TSRB","extras":[],"groups":[{"id":"434371","name":"ECE Ph.D. Proposal Oral Exams"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"},{"id":"1808","name":"graduate students"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689920":{"#nid":"689920","#data":{"type":"event","title":"Ph.D. Proposal Oral Exam - Oluwasegun Ibiyemi","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp; \u003C\/strong\u003E\u003Cem\u003EOptical Transfer Function for Imaging Systems using a Superposed Grating Model\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Gaylord, Advisor\u003C\/p\u003E\u003Cp\u003EDr. Cai, Chair\u003C\/p\u003E\u003Cp\u003EDr. Adibi\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe objective of the proposed research is to develop a more general and physically grounded method for deriving the three-dimensional optical transfer function for quantitative phase imaging, with the goal of overcoming shortcomings of conventional models, including the missing-cone problem and its associated image artifacts.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Optical Transfer Function for Imaging Systems using a Superposed Grating Model"}],"uid":"28475","created_gmt":"2026-04-21 17:11:19","changed_gmt":"2026-04-21 17:12:45","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-04T16:00:00-04:00","event_time_end":"2026-05-04T18:00:00-04:00","event_time_end_last":"2026-05-04T18:00:00-04:00","gmt_time_start":"2026-05-04 20:00:00","gmt_time_end":"2026-05-04 22:00:00","gmt_time_end_last":"2026-05-04 22:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Online","extras":[],"related_links":[{"url":"https:\/\/teams.microsoft.com\/meet\/22008100866501?p=YMJpx91B0PTgbxp4k8","title":"Microsoft Teams Link "}],"groups":[{"id":"434371","name":"ECE Ph.D. Proposal Oral Exams"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"},{"id":"1808","name":"graduate students"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689918":{"#nid":"689918","#data":{"type":"event","title":"PhD Defense by Dahye Han","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp;\u003C\/strong\u003EFrom Theory to Practice: Advanced Methods for Solving QCQPs\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDate:\u0026nbsp;\u003C\/strong\u003ETuesday, April 28th, 2026\u003Cbr\u003E\u003Cstrong\u003ETime:\u0026nbsp;\u003C\/strong\u003E11:00 am \u2013 1:00 pm EST\u003Cbr\u003E\u003Cstrong\u003ELocation:\u0026nbsp;\u003C\/strong\u003EGroseclose 226 (Georgia Freight Bureau Conference Room) and \u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fgatech.zoom.us%2Fj%2F96314902243\u0026amp;data=05%7C02%7Ctm186%40gtvault.onmicrosoft.com%7C256bdcce4cfe4f42862108de9fa0719b%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639123708631284231%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=3FC2P9EgYl12NNzg6xOXyLYkHZXwG%2FdptB5ekZEYFyw%3D\u0026amp;reserved=0\u0022\u003EZoom\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003Cbr\u003EDr. Santanu S. Dey (Advisor), H. Milton Stewart School of Industrial and Systems Engineering, Georgia Institute of Technology\u003Cbr\u003EDr. Oktay G\u00fcnl\u00fck, H. Milton Stewart School of Industrial and Systems Engineering, Georgia Institute of Technology\u003Cbr\u003EDr. Jean-Philippe P. Richard, Department of Industrial and Systems Engineering, University of Minnesota\u003Cbr\u003EDr. Nick Sahinidis, H. Milton Stewart School of Industrial and Systems Engineering, Georgia Institute of Technology\u003Cbr\u003EDr. Yang Wang, School of Civil and Environmental Engineering, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract:\u003C\/strong\u003E\u003Cbr\u003EQuadratically constrained programs (QCQPs) model critical real-world problems across engineering, finance, logistics, and data science. For nonconvex QCQPs, finding globally optimal solutions is computationally intractable in general, and even small instances can be challenging for state-of-the-art optimization solvers. This thesis studies the design and analysis of global optimization algorithms and relaxation schemes for QCQPs that are both mathematically rigorous and computationally practical.\u003Cbr\u003E\u003Cbr\u003ESolving QCQPs to global optimality relies on three key components: (i) finding high-quality feasible solutions, (ii) constructing tight relaxations, and (iii) selecting effective branching strategies. These are crucial for the spatial branch-and-bound, which is the dominant approach for solving QCQPs. This thesis contributes to each of these components.\u003Cbr\u003E\u003Cbr\u003EThe first part of the thesis addresses the problem of finding high-quality feasible solutions for an energy storage optimization problem whose operational constraints are bilinear. We develop a regularized formulation whose linear programming relaxation yields a feasible solution to the original problem. This approach enables solving previously challenging trilevel optimization problems modeling adversarial attacks on power grids.\u003Cbr\u003E\u003Cbr\u003EThe second part of the thesis focuses on building a tighter convex relaxation for bilinear bipartite programs using aggregation techniques to construct second-order cone representable sets. We characterize when aggregation methods yield the exact convex hull and provide illustrative examples. Computational experiments demonstrate that aggregation methods improve bounds over single-row relaxations and commercial solvers, reducing the optimality gap.\u003Cbr\u003E\u003Cbr\u003EThe third part of the thesis proposes a novel branching rule, namely extreme strong branching, which jointly optimizes both branching variable and point selection via binary search. This approach leverages objective value improvements to minimize branch-and-bound tree size while producing bound tightening as a byproduct. For certain instances, this technique produces substantially smaller branch-and-bound trees to reach optimality compared to alternative branching rules.\u003Cbr\u003E\u003Cbr\u003EThe last part of the thesis studies relaxation schemes in a unified framework, from data-independent to data-dependent approaches. We prove that bounded Lagrangian relaxation provides the strongest bound among data-independent methods under mild conditions. We further analyze data-dependent relaxations and establish a hierarchy of the relative strength of various relaxation methods.\u0026nbsp;\u003Cbr\u003E\u003Cbr\u003ECollectively, these contributions bridge the gap between theoretical possibility and computational feasibility, expanding the range of QCQP instances that can be addressed effectively in practice.\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EFrom Theory to Practice: Advanced Methods for Solving QCQPs\u0026nbsp;\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"From Theory to Practice: Advanced Methods for Solving QCQPs "}],"uid":"27707","created_gmt":"2026-04-21 17:09:28","changed_gmt":"2026-04-21 17:09:28","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-28T11:00:00-04:00","event_time_end":"2026-04-28T13:00:00-04:00","event_time_end_last":"2026-04-28T13:00:00-04:00","gmt_time_start":"2026-04-28 15:00:00","gmt_time_end":"2026-04-28 17:00:00","gmt_time_end_last":"2026-04-28 17:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Groseclose 226 (Georgia Freight Bureau Conference Room) and Zoom","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689917":{"#nid":"689917","#data":{"type":"event","title":"Ph.D. Proposal Oral Exam - Mohamed Mejri","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp; \u003C\/strong\u003E\u003Cem\u003EData and Energy-Efficient Learning Representations and Vector Symbolic Processing for Reasoning and Decision-Making\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Chatterjee, Advisor\u003C\/p\u003E\u003Cp\u003EDr. Hao, Chair\u003C\/p\u003E\u003Cp\u003EDr. Mukhopadhyay\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe objective of this research is to develop data- and energy-efficient artificial intelligence architectures that enable robust reasoning and real-time decision-making in resource-constrained environments. By leveraging Vector Symbolic Architectures (VSAs) and brain-inspired learning frameworks, the proposed system overcomes the massive data and power requirements of traditional large models to facilitate abstract reasoning and continual online learning. Additionally, it incorporates dynamic computational adaptability and high error resilience for harsh edge deployments, with future applications targeting complex robotic systems that unify perception, reasoning, and actuation.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Data and Energy-Efficient Learning Representations and Vector Symbolic Processing for Reasoning and Decision-Making"}],"uid":"28475","created_gmt":"2026-04-21 17:09:11","changed_gmt":"2026-04-21 17:09:26","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-28T14:00:00-04:00","event_time_end":"2026-04-28T16:00:00-04:00","event_time_end_last":"2026-04-28T16:00:00-04:00","gmt_time_start":"2026-04-28 18:00:00","gmt_time_end":"2026-04-28 20:00:00","gmt_time_end_last":"2026-04-28 20:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Room 1202, Klaus","extras":[],"groups":[{"id":"434371","name":"ECE Ph.D. Proposal Oral Exams"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"},{"id":"1808","name":"graduate students"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689916":{"#nid":"689916","#data":{"type":"event","title":"PhD Defense by Manuel J. Diaz","body":[{"value":"\u003Cp\u003EStudent Name: Manuel J. Diaz\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAdvisor: Dr. Dimitri Mavris\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EMilestone: PhD Thesis Final Examination (Defense)\u003Cbr\u003E\u003Cbr\u003EDegree Program: Aerospace Engineering\u003Cbr\u003E\u003Cbr\u003ETitle: An Approach to Developing Ontology-Based Epistemic Infrastructure for Early-Phase Architecting of Space Exploration Campaigns\u003Cbr\u003E\u003Cbr\u003EAbstract: NASA\u0027s Artemis Program, an ambitious space exploration campaign (SEC) to explore the Moon and Mars, is expected to grow to over 50 highly-coupled major acquisitions. Yet for the past 35 years, NASA\u0027s acquisition practices have been designated \u0022high-risk\u0022 by the GAO due to chronic cost overruns and schedule delays. A root cause analysis traces these outcomes to epistemic shortfalls in early-phase architecting: tacitness, ambiguity, manual data transfers, and inconsistencies in how architectural knowledge is represented, exchanged, and verified. To address these shortfalls, this dissertation introduces ontologies and semantic web technologies into early-phase campaign architecting to develop ontology-based epistemic infrastructure. A tailored methodology, SEC Ontology Development Methodology (SECODM), was formulated. Following it, a layered ontology ecosystem, SECO, was developed along with minimum viable infrastructure for development, verification, and deployment. An evaluation framework based on elegant systems theory was developed to assess these contributions. Three case studies demonstrated that the ontology and infrastructure address the identified root causes through formal knowledge representation, machine-readable interoperability, and automated consistency verification.\u003Cbr\u003E\u003Cbr\u003EDate and time: 2026-05-04, 1pm ET\u003Cbr\u003E\u003Cbr\u003ELocation: CoVE\u003Cbr\u003E\u003Cbr\u003ECommittee:\u003Cbr\u003EDr. Dimitri Mavris (advisor), School of Aerospace Engineering\u003Cbr\u003EProf. Daniel Scrage, School of Aerospace Engineering\u003Cbr\u003EProf. Thomas Gonzalez Roberts, School of Aerospace Engineering\u003Cbr\u003EDr. Bradford Robertson, School of Aerospace Engineering\u003Cbr\u003EDr. Michael Balchanos, School of Aerospace Engineering\u003Cbr\u003EDr. Stephen Edwards, NASA MSFC\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EAn Approach to Developing Ontology-Based Epistemic Infrastructure for Early-Phase Architecting of Space Exploration Campaigns\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"An Approach to Developing Ontology-Based Epistemic Infrastructure for Early-Phase Architecting of Space Exploration Campaigns"}],"uid":"27707","created_gmt":"2026-04-21 17:07:20","changed_gmt":"2026-04-21 17:07:57","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-04T13:00:28-04:00","event_time_end":"2026-05-04T15:00:28-04:00","event_time_end_last":"2026-05-04T15:00:28-04:00","gmt_time_start":"2026-05-04 17:00:28","gmt_time_end":"2026-05-04 19:00:28","gmt_time_end_last":"2026-05-04 19:00:28","rrule":null,"timezone":"America\/New_York"},"location":"CoVE","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689914":{"#nid":"689914","#data":{"type":"event","title":"PhD Proposal by Sheldon Salins","body":[{"value":"\u003Cp\u003EStudent Name: Sheldon Salins\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAdvisor: Dr. Marilyn Smith\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EMilestone: PhD Thesis Proposal\u003Cbr\u003E\u003Cbr\u003EDegree Program: Aerospace Engineering\u003Cbr\u003E\u003Cbr\u003ETitle: Reduced-Order Modeling for Aero-Structural Design of Advanced Air Mobility Vehicles\u003Cbr\u003E\u003Cbr\u003EAbstract: In recent years, the field of Advanced Air Mobility (AAM)---previously referred to as Urban Air Mobility (UAM)---has made significant progress towards commercialization. These AAM vehicles have consumer-facing applications such as air taxi and Uncrewed Aerial Vehicle (UAV) delivery services, with many proposed missions occurring within urban settings. This is an environment characterized by aerodynamic drivers that are not present in the traditional flight analysis methods applied in open-air conditions, such as the importance of building wake flows and small-scale turbulence. The AAM industry is also presently facing the challenging economics of bringing financially stable low capacity flights to the market, meaning minimizing costs while maximizing safety are a large concern. With this in mind, a deeper understanding of sources of structural fatigue and their significance may be crucial to keeping inspection and repair costs low while maintaining confidence in vehicle and passenger safety. This thesis aims to elucidate the feasibility of reduced-order models as alternatives to costly mid- or high-fidelity computational tools for early design and analysis of AAM\u0027s. Specifically, aerodynamic flow models will be assesed for their sensitivity and applicability in urban environment applications. Addionally, the effects of multi-tiltrotor downwash on a wing will be evaluated with a number of solvers. The resulting structural loads will be compared to determine the bounds of the tradeoff between model fidelity and solution accuracy.\u003Cbr\u003E\u003Cbr\u003EDate and time: 2026-04-29, 2:00pm\u003Cbr\u003E\u003Cbr\u003ELocation: Skiles 246\u003Cbr\u003E\u003Cbr\u003ECommittee:\u003Cbr\u003EDr. Marilyn Smith (advisor), School of Aerospace Engineering\u003Cbr\u003EDr. Juergen Rauleder, School of Aerospace Engineering\u003Cbr\u003EDr. Graeme Kennedy, School of Aerospace Engineering\u003Cbr\u003E,\u0026nbsp;\u003Cbr\u003E\u003Cbr\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EReduced-Order Modeling for Aero-Structural Design of Advanced Air Mobility Vehicles\u003Cbr\u003E\u003Cbr\u003E\u0026nbsp;\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Reduced-Order Modeling for Aero-Structural Design of Advanced Air Mobility Vehicles"}],"uid":"27707","created_gmt":"2026-04-21 17:01:04","changed_gmt":"2026-04-21 17:01:31","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-29T14:00:00-04:00","event_time_end":"2026-04-29T16:00:00-04:00","event_time_end_last":"2026-04-29T16:00:00-04:00","gmt_time_start":"2026-04-29 18:00:00","gmt_time_end":"2026-04-29 20:00:00","gmt_time_end_last":"2026-04-29 20:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Skiles 246","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689908":{"#nid":"689908","#data":{"type":"event","title":"PhD Proposal by Guru Charan Ganesh","body":[{"value":"\u003Cp\u003EStudent Name: Guru Charan Ganesh\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAdvisor: Dr. Timothy Lieuwen\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EMilestone: PhD Thesis Proposal\u003Cbr\u003E\u003Cbr\u003EDegree Program: Aerospace Engineering\u003Cbr\u003E\u003Cbr\u003ETitle: Unsteady Wake Structures in Jets in Crossflow\u003Cbr\u003E\u003Cbr\u003EAbstract: The jet in crossflow (JICF) is a fundamental, fluid mechanics-rich flow topology employed in various combustor architectures such as lean premixed combustors, staged combustors, as well as in film cooling technologies, owing to its excellent mixing properties. While on paper the implementation of this flow configuration is simple enough, the interaction between the two fluid streams results in a super three-dimensional, unsteady large scale vortical structures, namely: horseshoe vortices, shear layer vortices, counter-rotating vortex pairs, and the wake vortices. Out of these, the wake vortices are the least understood and have received limited attention. A large body of literature exists in characterizing the formation and development of the shear layer vortices (SLV) and the counter-rotating vortex pairs (CVP), and as such, control strategies are developed around their behavior in system level applications. Despite the bulk of the mixing is attributed to the SLVs and the CVP, the wake structures appear to add another layer of far field mixing from their tornado-like behavior and are the major focus of this work. Although experimental and computational studies have been performed to characterize the periodicity associated with the wake vortices, general consensus on their precise formation mechanism and source of vorticity is yet to be achieved. Moreover, despite the existence of tornado-like structures in the wake of the jet are widely acknowledged in the research community, the exact nature of their evolution is yet to be explained. In the context of a reacting jet in crossflow (staged combustors, for instance), presence of combustion has been shown to significantly alter the underlying hydrodynamics of the flow field due to additional physics like dilatation effects, baroclinic torque, and local viscosity changes, resulting in complex flame-flow interactions. Furthermore, combustor phenomena such as flame stabilization and Nox emissions have been shown to be highly sensitive to the background fluid mechanics of this flow field, necessitating a systematic investigation onto combustion effects. Additionally, since the evolution of these large scale flow structures occurs at their respective time and length scales, studies on their interactions require highly-resolved spatial and temporal datasets. Motivated by the above-mentioned gaps in literature and challenges on analysis, this proposal seeks to explore the characteristics of the wake structures and attempts to answer fundamental questions like: (1) What is the nature of flow separation mechanisms (low pressure-driven events vs CVP induction) and source of vorticity (crossflow boundary layer vs jet shear layer), (2) what is the effect of flame attachment location and the consequent local heat release distribution on wake vortices, (3) what are the unsteady features of the wake vortices (characteristic frequencies, symmetry, mode shapes) and how do they compare between non-reacting and reacting jet in crossflow datasets. These research questions are systematically investigated using high fidelity large eddy simulations. The computations will be performed over a range of fluid dynamic parameters characterizing the flow field and the dependencies of the topological features of wake structures on test parameters will be ascertained.\u0026nbsp;\u003Cbr\u003E\u003Cbr\u003EDate and time: 2026-05-01, 9.00 AM - 11.00 AM\u003Cbr\u003E\u003Cbr\u003ELocation: MK-317\u003Cbr\u003E\u003Cbr\u003ECommittee:\u003Cbr\u003EDr. Timothy Lieuwen (advisor), School of Aerospace Engineering\u003Cbr\u003EDr. Ari Glezer, School of Mechanical Engineering\u003Cbr\u003EDr. Joseph Oefelein, School of Aerospace Engineering\u003Cbr\u003E,\u0026nbsp;\u003Cbr\u003E,\u0026nbsp;\u003Cbr\u003E,\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EUnsteady Wake Structures in Jets in Crossflow\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Unsteady Wake Structures in Jets in Crossflow"}],"uid":"27707","created_gmt":"2026-04-20 18:46:42","changed_gmt":"2026-04-20 18:47:25","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-01T09:00:00-04:00","event_time_end":"2026-05-01T11:00:00-04:00","event_time_end_last":"2026-05-01T11:00:00-04:00","gmt_time_start":"2026-05-01 13:00:00","gmt_time_end":"2026-05-01 15:00:00","gmt_time_end_last":"2026-05-01 15:00:00","rrule":null,"timezone":"America\/New_York"},"location":"MK-317","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689907":{"#nid":"689907","#data":{"type":"event","title":"PhD Defense by Jacob Alan DeWitt","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EPhD Thesis\u0026nbsp;Defense\u0026nbsp;Announcement\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EStudent Name: Jacob Alan DeWitt\u003C\/p\u003E\u003Cp\u003EThesis Title: Mechanocatalytic Synthesis of Ammonia over Transition Metal Nitrides\u003C\/p\u003E\u003Cp\u003EThesis Advisor: Dr. Carsten Sievers\u003C\/p\u003E\u003Cp\u003EThesis Co-Advisor: N\/A\u003C\/p\u003E\u003Cp\u003ECommittee Members: Dr. William J. Koros (School of Chemical \u0026amp; Biomolecular Engineering), Dr. David W. Flaherty (School of Chemical \u0026amp; Biomolecular Engineering), Dr. Faisal M. Alamgir (School of Materials Science and Engineering), Dr. Justin Hargreaves (School of Chemistry - University of Glasgow)\u003C\/p\u003E\u003Cp\u003EDate: 05\/01\/2026\u003C\/p\u003E\u003Cp\u003ETime: 9:00 am EST\u003C\/p\u003E\u003Cp\u003ELocation: RBI 114\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EMechanocatalytic Synthesis of Ammonia over Transition Metal Nitrides\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Mechanocatalytic Synthesis of Ammonia over Transition Metal Nitrides"}],"uid":"27707","created_gmt":"2026-04-20 18:43:17","changed_gmt":"2026-04-20 18:44:01","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-01T09:00:00-04:00","event_time_end":"2026-05-01T11:00:00-04:00","event_time_end_last":"2026-05-01T11:00:00-04:00","gmt_time_start":"2026-05-01 13:00:00","gmt_time_end":"2026-05-01 15:00:00","gmt_time_end_last":"2026-05-01 15:00:00","rrule":null,"timezone":"America\/New_York"},"location":"RBI 114","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689871":{"#nid":"689871","#data":{"type":"event","title":"PhD Defense by Avi Gupta","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EAvi Gupta\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EBioE Ph.D. Defense Presentation\u003C\/p\u003E\u003Cp\u003EWed, May 6, 2026, 12:30 PM\u003C\/p\u003E\u003Cp\u003ELocation: EBB CHOA Seminar Room\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fgatech.zoom.us%2Fj%2F96972528891%3Fpwd%3DwfP5hwf2uLElzalXRKe0aCtPJxomYc.1%26from%3Daddon\u0026amp;data=05%7C02%7Ctm186%40gtvault.onmicrosoft.com%7Cacbf45331d544f08c7ff08de9b355cb2%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639118850660716125%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=%2FvqGGc2H0vAWMjQ2j8aLA6o9Bgb7nIM2TH5sVMOK9Ww%3D\u0026amp;reserved=0\u0022 rel=\u0022noopener noreferrer\u0022 target=\u0022_blank\u0022 title=\u0022Original URL: https:\/\/gatech.zoom.us\/j\/96972528891?pwd=wfP5hwf2uLElzalXRKe0aCtPJxomYc.1\u0026amp;from=addon. Click or tap if you trust this link.\u0022\u003Ehttps:\/\/gatech.zoom.us\/j\/96972528891?pwd=wfP5hwf2uLElzalXRKe0aCtPJxomYc.1\u0026amp;from=addon\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u0026nbsp;Advisor\u003C\/strong\u003E: Todd Sulchek, Ph.D. (ME, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E:\u003C\/p\u003E\u003Cp\u003EAlexander Alexeev, Ph.D. (ME, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003EScott Danielsen, Ph.D. (MSE, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003EDavid Myers, Ph.D. (BME, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003EGuillem Pratx, Ph.D. (Radiology and Medical Physics, Stanford University)\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EOptimization of Forces, Loading Rates and Strain for Cytosolic Delivery using Mechanoporation\u0026nbsp;\u003C\/strong\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EEfficient intracellular delivery of cargo remains a central challenge in biomedical engineering to improve gene editing, cell therapy production, and cell diagnostics. The optimal delivery not only introduces cargo into cells but achieves cytosolic access while preserving cell viability and normal function. Existing approaches often fall short of this balance. Viral and carrier-mediated methods can promote uptake of molecularly encoded genes but are limited by endosomal entrapment and intracellular degradation. Electroporation can disrupt cell membranes but also disturbs normal cellular physiology. These limitations have motivated interest in microfluidic mechanoporation, in which cells are transiently permeabilized through controlled mechanical deformation. However, the mechanism of mechanoporation remains poorly defined and, as such, performance remains difficult to predict and standardize. To bridge the gap, this dissertation establishes a framework connecting device geometry, transient loading dynamics, and delivery outcomes. A key learning is that mechanoporation performance is demonstrated to be better explained by cell loading kinetics than by deformation magnitude alone. Systematic channel width and ridge angle variation demonstrates how tuning force rate, directionality, and loading history improves delivery efficiency, cell survival and experimental consistency. Integration of high-speed trajectory analysis, computational fluid dynamics (CFD), and multivariate modeling further reveals that steady-state descriptors such as strain magnitude are insufficient to explain mechanoporation outcomes, which instead, correlate strongly with strain rate and history-dependent hydrodynamic forces. Extending these insights to nanoparticle delivery, imaging analyses demonstrate that optimized device geometries enable deeper intracellular access and improved cargo retention relative to conventional incubation-based approaches. Together, these results provide a force-based framework for mechanoporation that links device design to biologically meaningful intracellular delivery.\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cp\u003E\u003Cstrong\u003EBioE PhD Defense Presentation- Avi Gupta\u003C\/strong\u003E\u003C\/p\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv dir=\u0022ltr\u0022\u003E\u003Cem\u003E\u003Cstrong\u003E\uf2bc\u003C\/strong\u003E\u003C\/em\u003E\u003Cstrong\u003ESummarize\u003C\/strong\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv dir=\u0022ltr\u0022\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cstrong\u003E\u003Cimg src=\u0022blob:https:\/\/outlook.cloud.microsoft\/2bc63c21-b94e-4fff-8aa0-d1c2095ed8ae\u0022 alt=\u0022\u0022\u003E\u003C\/strong\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003EPaige, Laura T\u0026lt;laura.paige@bioengineering.gatech.edu\u0026gt;\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv dir=\u0022ltr\u0022\u003E\u003Cdiv\u003E\u0026nbsp;\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u200bPaige, Laura T\u200b\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u200bNelson, Teresa L;\u200bannouncements@grad.gatech.edu\u200b\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv\u003E\u003Cdiv lang=\u0022EN-US\u0022\u003E\u003Cdiv\u003E\u003Cp\u003E\u003Cstrong\u003EAvi Gupta\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EBioE Ph.D. Defense Presentation\u003C\/p\u003E\u003Cp\u003EWed, May 6, 2026, 12:30 PM\u003C\/p\u003E\u003Cp\u003ELocation: EBB CHOA Seminar Room\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fgatech.zoom.us%2Fj%2F96972528891%3Fpwd%3DwfP5hwf2uLElzalXRKe0aCtPJxomYc.1%26from%3Daddon\u0026amp;data=05%7C02%7Ctm186%40gtvault.onmicrosoft.com%7Cacbf45331d544f08c7ff08de9b355cb2%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639118850660716125%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=%2FvqGGc2H0vAWMjQ2j8aLA6o9Bgb7nIM2TH5sVMOK9Ww%3D\u0026amp;reserved=0\u0022 rel=\u0022noopener noreferrer\u0022 target=\u0022_blank\u0022 title=\u0022Original URL: https:\/\/gatech.zoom.us\/j\/96972528891?pwd=wfP5hwf2uLElzalXRKe0aCtPJxomYc.1\u0026amp;from=addon. Click or tap if you trust this link.\u0022\u003Ehttps:\/\/gatech.zoom.us\/j\/96972528891?pwd=wfP5hwf2uLElzalXRKe0aCtPJxomYc.1\u0026amp;from=addon\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u0026nbsp;Advisor\u003C\/strong\u003E: Todd Sulchek, Ph.D. (ME, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E:\u003C\/p\u003E\u003Cp\u003EAlexander Alexeev, Ph.D. (ME, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003EScott Danielsen, Ph.D. (MSE, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003EDavid Myers, Ph.D. (BME, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003EGuillem Pratx, Ph.D. (Radiology and Medical Physics, Stanford University)\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EOptimization of Forces, Loading Rates and Strain for Cytosolic Delivery using Mechanoporation\u0026nbsp;\u003C\/strong\u003E\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"BioE PhD Defense Presentation- Avi Gupta  \uf2bc Summarize  Paige, Laura T\u003Claura.paige@bioengineering.gatech.edu\u003E  \u200b Paige, Laura T\u200b \u200b Nelson, Teresa L;\u200bannouncements@grad.gatech.edu\u200b Avi Gupta  BioE Ph.D. Defense Presentation  Wed, May 6, 2026, 12:30 PM  Loca"}],"uid":"27707","created_gmt":"2026-04-19 04:57:31","changed_gmt":"2026-04-19 04:58:16","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-05T12:30:07-04:00","event_time_end":"2026-05-05T14:00:00-04:00","event_time_end_last":"2026-05-05T14:00:00-04:00","gmt_time_start":"2026-05-05 16:30:07","gmt_time_end":"2026-05-05 18:00:00","gmt_time_end_last":"2026-05-05 18:00:00","rrule":null,"timezone":"America\/New_York"},"location":"EBB CHOA Seminar Room","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689870":{"#nid":"689870","#data":{"type":"event","title":"PhD Defense by Zixing Fan","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EZixing Fan\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EBioengineering PhD Defense Presentation\u003C\/p\u003E\u003Cp\u003EApril 29, 2026 (Wednesday)\u003C\/p\u003E\u003Cp\u003E10:00 AM\u003C\/p\u003E\u003Cp\u003ELocation: Howey N201\/202\u003C\/p\u003E\u003Cp\u003EMeeting link: \u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fgatech.zoom.us%2Fj%2F91549406195%3Fpwd%3Dob1cyXlVnDSpDTjJqx6hQBqzIhnbVz.1\u0026amp;data=05%7C02%7Ctm186%40gtvault.onmicrosoft.com%7Cb21c0cc193a9493ab78c08de9b357176%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639118851025102123%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=PEk5O1Fpv%2F048aMorvEX57%2FuKXl8Ru%2F0lxFpyKRaVE4%3D\u0026amp;reserved=0\u0022 rel=\u0022noopener noreferrer\u0022 target=\u0022_blank\u0022 title=\u0022Original URL: https:\/\/gatech.zoom.us\/j\/91549406195?pwd=ob1cyXlVnDSpDTjJqx6hQBqzIhnbVz.1. Click or tap if you trust this link.\u0022\u003Ehttps:\/\/gatech.zoom.us\/j\/91549406195?pwd=ob1cyXlVnDSpDTjJqx6hQBqzIhnbVz.1\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAdvisor\u003C\/strong\u003E: \u0026nbsp;\u003C\/p\u003E\u003Cp\u003EJames C. Gumbart, Ph.D. (School of Physics, Georgia Institute of Technology) \u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E: \u0026nbsp;\u003C\/p\u003E\u003Cp\u003EM. G. Finn, Ph.D. (School of Chemistry and Biochemistry, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003EPeter Kasson, Ph.D. (School of Chemistry and Biochemistry; Coulter Department of Biomedical Engineering, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003EJeffrey Skolnick, Ph.D. (School of Biological Sciences, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003EAdegboyega Oyelere, Ph.D. (School of Chemistry and Biochemistry, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EModulating Hepatitis B Virus Capsid Assembly and Function through Pharmacological Intervention \u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EHepatitis B virus (HBV) is a major global health burden that causes chronic liver disease. Its replication depends on the assembly of a protein capsid, making this process an important target for antiviral intervention. This work integrates molecular dynamics simulations and biophysical experiments to investigate how small molecules interact with and modulate the HBV core protein across different structural contexts. First, biophysics-guided approaches were used to identify ligands targeting the inter-dimer assembly interface, showing that small molecules can perturb capsid assembly through changes in inter-subunit interactions. Second, free-energy calculations were conducted to characterize the conformational landscape of a key assembly intermediate, providing insight into structural features that may influence assembly nucleation. Third, a distinct intra-dimer pocket was characterized using fragment-based mapping and pharmacophore modeling, enabling virtual screening and experimental validation of ligands with extended binding modes. Together, these results provide a framework for understanding how small molecules can modulate HBV capsid behavior and highlight new directions for antiviral design.\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EModulating Hepatitis B Virus Capsid Assembly and Function through Pharmacological Intervention \u0026nbsp;\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Modulating Hepatitis B Virus Capsid Assembly and Function through Pharmacological Intervention \u00a0"}],"uid":"27707","created_gmt":"2026-04-19 04:54:47","changed_gmt":"2026-04-19 04:55:29","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-29T10:00:00-04:00","event_time_end":"2026-04-29T12:00:00-04:00","event_time_end_last":"2026-04-29T12:00:00-04:00","gmt_time_start":"2026-04-29 14:00:00","gmt_time_end":"2026-04-29 16:00:00","gmt_time_end_last":"2026-04-29 16:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Howey N201\/202","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689868":{"#nid":"689868","#data":{"type":"event","title":"PhD Defense by Zihan Zhang","body":[{"value":"\u003Cdiv\u003E\u003Cp\u003E\u003Cstrong\u003ETitle:\u003C\/strong\u003E\u0026nbsp;Tensor-based Predictive Modeling and Control for High-dimensional Data\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u003Cstrong\u003EDate: \u003C\/strong\u003EMay 15, 2026 (Friday)\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u003Cstrong\u003ETime: \u003C\/strong\u003E10:00 am - 12:00 pm EST\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u003Cstrong\u003EZoom link:\u003C\/strong\u003E\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fgatech.zoom.us%2Fj%2F97178700611%3Fpwd%3Dx3BIcKHMf0trFzXunDRap84ARbL8nx.1%26from%3Daddon\u0026amp;data=05%7C02%7Ctm186%40gtvault.onmicrosoft.com%7Cbf5b420afd4b4afda4ce08de9ba85fd5%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639119344643210516%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=q%2BrTI3%2FhlAmsVCT2ZnNO%2FnJ3EfoTz8NAXePr3rFs1SE%3D\u0026amp;reserved=0\u0022 rel=\u0022noopener noreferrer\u0022 target=\u0022_blank\u0022 title=\u0022Original URL: https:\/\/gatech.zoom.us\/j\/97178700611?pwd=x3BIcKHMf0trFzXunDRap84ARbL8nx.1\u0026amp;from=addon. Click or tap if you trust this link.\u0022\u003Ehttps:\/\/gatech.zoom.us\/j\/97178700611?pwd=x3BIcKHMf0trFzXunDRap84ARbL8nx.1\u0026amp;from=addon\u003C\/a\u003E\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E(Meeting ID: 971 7870 0611; Passcode: 387776)\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u003Cstrong\u003EZihan Zhang\u003C\/strong\u003E\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EPh.D. Candidate in Industrial Engineering\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EH. Milton Stewart School of Industrial and Systems Engineering\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u003Cstrong\u003EThesis Committee:\u003C\/strong\u003E\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cul type=\u0022disc\u0022\u003E\u003Cli\u003EDr. Jianjun Shi (Advisor), H. Milton Stewart School of Industrial and Systems Engineering, Georgia Tech\u003C\/li\u003E\u003C\/ul\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cul type=\u0022disc\u0022\u003E\u003Cli\u003EDr. Kamran Paynabar (Advisor), H. Milton Stewart School of Industrial and Systems Engineering, Georgia Tech\u003C\/li\u003E\u003C\/ul\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cul type=\u0022disc\u0022\u003E\u003Cli\u003EDr. Yao\u0026nbsp;Xie, H. Milton Stewart School of Industrial and Systems Engineering, Georgia Tech\u003C\/li\u003E\u003C\/ul\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cul type=\u0022disc\u0022\u003E\u003Cli\u003EDr. Xiao Liu, H. Milton Stewart School of Industrial and Systems Engineering, Georgia Tech\u003C\/li\u003E\u003C\/ul\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cul type=\u0022disc\u0022\u003E\u003Cli\u003EDr. Mostafa Reisi, Department of Industrial and Systems Engineering, University of Florida\u003C\/li\u003E\u003C\/ul\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract:\u003C\/strong\u003E\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EAdvances in sensing technologies have dramatically increased the volume and complexity of high-dimensional data, such as high-resolution images and videos, that challenge the foundations of traditional control methodologies. Conventional approaches, rooted in low-dimensional signal processing, often struggle to capture the complex spatio-temporal dependencies inherent in such data. Naive vectorization techniques destroy essential structural information, while many learning-based methods require large datasets and often lack interpretability.\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EThis dissertation develops tensor-based control frameworks that preserve the underlying spatial and temporal structure of high-dimensional data. Chapter 2 addresses incomplete sensing in automatic process control by introducing methods for response imputation and control under missing-data conditions. Chapter 3 presents a system modeling framework that captures localized correlations in system responses and the spatial effects of control actions, followed by a dynamic controller design that optimizes controller placement to improve performance. 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A constrained optimization problem is solved in which the goal is to select measurement locations that yield the best-conditioned estimation problem, with the constraint that the total travel time to visit all points must be less than a specified value. The effectiveness of search locations is measured by the stable rank of the kernel matrix, which quantifies the attenuation between each candidate source location and candidate measurement location. Measurement locations are selected by a greedy algorithm for maximum stable rank while the total travel time is minimized by solving the well-known traveling salesman problem. Simulation results of the algorithm demonstrate that the optimization improves the estimation of radiological source term parameters for a given time constraint. The continued work will focus on the implementation of the algorithm on an unmanned aerial vehicle (UAV). Modifications to the algorithm will be needed to account for different absorption mediums and isotopes. A lab-based experiment demonstrating a search for radiation point sources of different isotopes is being designed.\u003Cbr\u003E\u003Cbr\u003EDate and time: 2026-04-24, 3:00-4:00\u003Cbr\u003E\u003Cbr\u003ELocation: Weber 200\u003Cbr\u003E\u003Cbr\u003ECommittee:\u003Cbr\u003EDr. Jonathan Rogers (advisor), School of Aerospace Engineering\u003Cbr\u003EDr. Lu Gan, School of Aerospace Engineering\u003Cbr\u003EDr. Craig Bakker, Pacific Northwest National Laboratory\u003Cbr\u003E,\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EUAV Implementation of Optimal Path Planning for Radiological Source Localization in Cluttered Environments\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"UAV Implementation of Optimal Path Planning for Radiological Source Localization in Cluttered Environments"}],"uid":"27707","created_gmt":"2026-04-19 04:45:45","changed_gmt":"2026-04-19 04:46:21","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-24T15:00:00-04:00","event_time_end":"2026-04-24T16:00:00-04:00","event_time_end_last":"2026-04-24T16:00:00-04:00","gmt_time_start":"2026-04-24 19:00:00","gmt_time_end":"2026-04-24 20:00:00","gmt_time_end_last":"2026-04-24 20:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Weber 200","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"166866","name":"MS Proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689864":{"#nid":"689864","#data":{"type":"event","title":"PhD Defense by Opeyemi Ojelade","body":[{"value":"\u003Cdiv\u003E\u003Cstrong\u003EPhD Thesis\u0026nbsp;Defense\u0026nbsp;Announcement\u003C\/strong\u003E\u003C\/div\u003E\u003Cdiv\u003EStudent Name: Opeyemi Ojelade\u003C\/div\u003E\u003Cdiv\u003EThesis Title: Catalytic Processing of Enriched Hydroxy Acids from Kraft Black Liquor\u003C\/div\u003E\u003Cdiv\u003EThesis Advisor: Dr. Christopher W. Jones\u003C\/div\u003E\u003Cdiv\u003EThesis Co-Advisor: Dr. Sankar Nair\u003C\/div\u003E\u003Cdiv\u003ECommittee Members: Dr. Mathew Realff (ChBE), Dr. Carsten Sievers (ChBE), Dr. Jake Soper (School of Chemistry \u0026amp; Biochemistry)\u003C\/div\u003E\u003Cdiv\u003EDate: 04\/23\/2026\u003C\/div\u003E\u003Cdiv\u003ETime: 9:00 AM\u003C\/div\u003E\u003Cdiv\u003ELocation: Ford ES\u0026amp;T 1387\u003C\/div\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003ECatalytic Processing of Enriched Hydroxy Acids from Kraft Black Liquor\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Catalytic Processing of Enriched Hydroxy Acids from Kraft Black Liquor"}],"uid":"27707","created_gmt":"2026-04-19 04:32:20","changed_gmt":"2026-04-19 04:33:06","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-23T09:00:00-04:00","event_time_end":"2026-04-23T11:00:54-04:00","event_time_end_last":"2026-04-23T11:00:54-04:00","gmt_time_start":"2026-04-23 13:00:00","gmt_time_end":"2026-04-23 15:00:54","gmt_time_end_last":"2026-04-23 15:00:54","rrule":null,"timezone":"America\/New_York"},"location":"Ford ES\u0026T 1387","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689862":{"#nid":"689862","#data":{"type":"event","title":"PhD Proposal by  Yixuan Li","body":[{"value":"\u003Cdiv\u003E\u003Cstrong\u003ETitle: Enhance Preparation for Future Learning through Decision-Rich Data Visualization Learning Environments: \u003C\/strong\u003EA Design-Based Research with Middle School Students\u0026nbsp;\u003C\/div\u003E\u003Cdiv\u003E\u0026nbsp;\u003C\/div\u003E\u003Cdiv\u003E\u003Cstrong\u003EYixuan Li\u003C\/strong\u003E\u003C\/div\u003E\u003Cdiv\u003EPh.D. Student in Human-centered Computing\u0026nbsp;\u003C\/div\u003E\u003Cdiv\u003ESchool of Interactive Computing\u0026nbsp;\u003C\/div\u003E\u003Cdiv\u003EGeorgia Institute of Technology\u0026nbsp;\u003C\/div\u003E\u003Cdiv\u003E\u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Ftiffanylyx.github.io%2FYixuanLi%2F\u0026amp;data=05%7C02%7Ctm186%40gtvault.onmicrosoft.com%7Cc6acfae9be3648e430fc08de9bf5a9bc%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639119676600250203%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=QBmnlZtDdvyd0thEPXvlE1nyk%2F2NHkltGrxihSjkqSk%3D\u0026amp;reserved=0\u0022 id=\u0022OWAebc0dd60-d005-524e-7aaf-8a42c2669a2b\u0022 rel=\u0022noopener noreferrer\u0022 target=\u0022_blank\u0022 title=\u0022Original URL: https:\/\/tiffanylyx.github.io\/YixuanLi\/. Click or tap if you trust this link.\u0022\u003Ehttps:\/\/tiffanylyx.github.io\/YixuanLi\/\u003C\/a\u003E\u003C\/div\u003E\u003Cdiv\u003E\u0026nbsp;\u003C\/div\u003E\u003Cdiv\u003E\u003Cstrong\u003EDate: Thursday, Apr 30, 2026\u003C\/strong\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cstrong\u003ETime: 12:00 PM \u2014 3:00 PM Eastern time (U.S.)\u003C\/strong\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cstrong\u003ELocation: TSRB room 334 (VIS Lab)\u0026nbsp;\u003C\/strong\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cstrong\u003EVirtual Meeting (hybrid): \u003C\/strong\u003E\u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fgatech.zoom.us%2Fj%2F6783328520%3Fomn%3D91473651189\u0026amp;data=05%7C02%7Ctm186%40gtvault.onmicrosoft.com%7Cc6acfae9be3648e430fc08de9bf5a9bc%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639119676600284974%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=PwRlb02QoxJGHlL413F5OJu1GN1qmNeRP16DaGg1QCU%3D\u0026amp;reserved=0\u0022 id=\u0022OWA91d8acf9-56e6-679b-6865-4a4602495ce1\u0022 rel=\u0022noopener noreferrer\u0022 target=\u0022_blank\u0022 title=\u0022Original URL: https:\/\/gatech.zoom.us\/j\/6783328520?omn=91473651189. Click or tap if you trust this link.\u0022\u003E\u003Cstrong\u003Ehttps:\/\/gatech.zoom.us\/j\/6783328520?omn=91473651189\u003C\/strong\u003E\u003C\/a\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u0026nbsp;\u003C\/div\u003E\u003Cdiv\u003EDr. Jessica Roberts (Advisor) - School of Interactive Computing, Georgia Institute of Technology\u003C\/div\u003E\u003Cdiv\u003EDr. Alex Endert - School of Interactive Computing, Georgia Institute of Technology\u003C\/div\u003E\u003Cdiv\u003EDr. Judith Odili Uchidiuno - School of Interactive Computing, Georgia Institute of Technology\u003C\/div\u003E\u003Cdiv\u003EDr. Ben Rydal Shapiro - Department of Learning Sciences, Georgia State University\u003C\/div\u003E\u003Cdiv\u003E\u0026nbsp;\u003C\/div\u003E\u003Cdiv\u003E\u003Cstrong\u003EAbstract:\u003C\/strong\u003E\u003C\/div\u003E\u003Cdiv\u003EThis proposed dissertation study examines how decision-rich data visualization learning experiences can support K\u201312 students\u2019 preparation for future data learning (PFL) by fostering their epistemic data agency (EDA). Data literacy is increasingly recognized as a core competency, yet instructional approaches that improve accessibility often rely on pre-curated data, predefined questions, and automated tools, limiting students\u2019 opportunities to engage in the epistemic decision-making central to authentic data practices. To address this tension, this study foregrounds EDA as learners\u2019 capacity to take responsibility for decisions in problem framing, representation, interpretation, and communication. It introduces decision-rich learning environments that preserve, make visible, and enable such decisions. Using a design-based research approach across iterative summer camp implementations, the study draws on video analysis, student artifacts, and pre\/post assessments to examine how students enact EDA and how these practices relate to PFL. Findings aim to contribute to an operationalized framework of EDA and PFL, and design principles for supporting transferable data literacy through decision-rich learning experiences.\u003C\/div\u003E\u003Cdiv\u003E\u0026nbsp;\u003C\/div\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cdiv\u003E\u003Cstrong\u003EEnhance Preparation for Future Learning through Decision-Rich Data Visualization Learning Environments: \u003C\/strong\u003EA Design-Based Research with Middle School Students\u0026nbsp;\u003C\/div\u003E\u003Cdiv\u003E\u0026nbsp;\u003C\/div\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Enhance Preparation for Future Learning through Decision-Rich Data Visualization Learning Environments: A Design-Based Research with Middle School Students "}],"uid":"27707","created_gmt":"2026-04-19 04:26:43","changed_gmt":"2026-04-19 04:27:19","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-30T12:00:00-04:00","event_time_end":"2026-04-30T15:00:00-04:00","event_time_end_last":"2026-04-30T15:00:00-04:00","gmt_time_start":"2026-04-30 16:00:00","gmt_time_end":"2026-04-30 19:00:00","gmt_time_end_last":"2026-04-30 19:00:00","rrule":null,"timezone":"America\/New_York"},"location":"TSRB room 334 (VIS Lab)\u00a0","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689860":{"#nid":"689860","#data":{"type":"event","title":"PhD Defense by Nicholas Y. Zhang","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ENicholas Y. Zhang\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EBioE Ph.D. Defense Presentation\u003C\/p\u003E\u003Cp\u003EFri, May 1, 2026, 12:00 PM \u2013 2:00 PM\u003C\/p\u003E\u003Cp\u003ELocation: IBB 1128 (Suddath Seminar Room)\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fgatech.zoom.us%2Fj%2F2361182737%3Fpwd%3Da2N4aFVRZzlHcXUwazBDdGROMUhoUT09\u0026amp;data=05%7C02%7Ctm186%40gtvault.onmicrosoft.com%7C56e806b5b06a490b41de08de9c7e9192%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639120264611065727%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=njCvq1YVgMiXX4N9qFQ5jwjVeC3fJkDtPlE0n%2B%2Bxc5A%3D\u0026amp;reserved=0\u0022 rel=\u0022noopener noreferrer\u0022 target=\u0022_blank\u0022\u003Ehttps:\/\/gatech.zoom.us\/j\/2361182737?pwd=a2N4aFVRZzlHcXUwazBDdGROMUhoUT09\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAdvisor:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EAhmet F. Coskun, Ph.D. (Biomedical Engineering, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EPeng Qiu, Ph.D. (Department of Biomedical Engineering, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003ESaurabh Sinha, Ph.D. (Department of Biomedical Engineering, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003ERabindra Tirouvanziam, Ph.D. (Department of Biomedical Engineering, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003EMarcus Cicerone, Ph.D. (Department of Chemistry \u0026amp; Biochemistry, Georgia Institute of Technology)\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETimeseries Spatial Omics of Immune Cell Signaling in Inflammation\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003ECystic fibrosis (CF) affects over 162,000 people worldwide. Although FDA-approved therapies have shown promising results, chronic inflammation and bacterial infections persist, causing tissue damage and worsening quality of life despite a large immune cell presence. This thesis investigates the spatiotemporal dynamics of NF-\u03baB signaling during inflammation by developing and applying spatial omics tools at the single-cell level across multiple biological contexts.\u003C\/p\u003E\u003Cp\u003EWe first introduce PRISMS, an open-sourced, automated multiplexing pipeline for spatial transcriptomic and proteomic imaging compatible with Nikon widefield and Cephla spinning disk confocal microscopy. Using PRISMS, we apply pSigOmics static fixation to profile over 100,000 mouse fibroblasts stimulated with TNF\u03b1 and IL-1\u03b2, revealing a novel asymmetric protein-RNA (APR) relationship between p65 RNA and protein. Graph neural network classification and PHATe trajectory analysis further delineate distinct APR subpopulations among stimulated fibroblasts.\u003C\/p\u003E\u003Cp\u003EWe next extend pSigOmics with programmable fixation via helical perfusion to create a continuous gradient of cell response, confirming the APR phenomenon with finer temporal resolution through cross-correlation, generalized additive model smoothing, and pseudotime analyses. Together, static and programmable fixation establish a comprehensive spatiotemporal framework for studying oscillatory translational regulation in single cells.\u003C\/p\u003E\u003Cp\u003EWe then develop graph-based super-resolution protein-protein interaction (GSR-PPI) analysis to predict cancer drug responses from spatial PPI networks in lung adenocarcinoma cells and patient-derived NSCLC tissues, and introduce multiplexed iterative sequential PLA (iseqPLA) to visualize 3D NF-\u03baB supercomplex dynamics. Upstream supercomplexes containing TRAF-5_TRADD and TRAF-5_TRAF-2 undergo rapid dissociation upon cytokine stimulation, inversely correlated with p65 nuclear translocation. Macrophage-fibroblast coculture experiments reveal that CF airway supernatant-exposed macrophages impart a hyperinflammatory phenotype to neighboring fibroblasts through paracrine NF-\u03baB activation. We additionally validate our NF-\u03baB gene panel using scGPT foundation models trained on multi-disease transcriptomic datasets, establishing a mechanistic link between protein-level supercomplex dynamics and transcriptional outputs.\u003C\/p\u003E\u003Cp\u003EThese contributions demonstrate the power of combining spatial multiplexing, temporal reconstruction, and computational modeling to decode immune signaling at single-cell and subcellular resolution, with implications for understanding chronic inflammation in CF and identifying opportune windows for therapeutic intervention.\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETimeseries Spatial Omics of Immune Cell Signaling in Inflammation\u003C\/strong\u003E\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Timeseries Spatial Omics of Immune Cell Signaling in Inflammation"}],"uid":"27707","created_gmt":"2026-04-19 03:24:13","changed_gmt":"2026-04-19 03:27:47","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-01T12:00:00-04:00","event_time_end":"2026-05-01T14:00:00-04:00","event_time_end_last":"2026-05-01T14:00:00-04:00","gmt_time_start":"2026-05-01 16:00:00","gmt_time_end":"2026-05-01 18:00:00","gmt_time_end_last":"2026-05-01 18:00:00","rrule":null,"timezone":"America\/New_York"},"location":"IBB 1128","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689859":{"#nid":"689859","#data":{"type":"event","title":" Ph.D. Proposal Defense \u2013Candace Washington","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ECollege of Design \u2013 School of Building Construction \u2013 Ph.D. Proposal Defense \u2013Candace Washington\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDate:\u003C\/strong\u003E\u0026nbsp;Friday, May 1st, 2026\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETime:\u0026nbsp;\u003C\/strong\u003E12:00 pm- 2:00 pm\u0026nbsp;Eastern Time\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ELocation:\u0026nbsp;\u003C\/strong\u003EMicrosoft Teams\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cul\u003E\u003Cli\u003EDr. Ece Erdogmus, Founding Dean, College of Architecture, Art, and Construction, Clemson University (co-advisor and co-committee chair)\u003C\/li\u003E\u003C\/ul\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cul\u003E\u003Cli\u003EDr. Eunhwa Yang, School of Building Construction, College of Design, Georgia Institute of Technology (co-advisor and co-committee chair)\u003C\/li\u003E\u003C\/ul\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cul\u003E\u003Cli\u003EDr. Jing Wen, School of Building Construction, College of Design, Georgia Institute of Technology\u003C\/li\u003E\u003C\/ul\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cul\u003E\u003Cli\u003EDr. Carol Colatrella,\u0026nbsp; School of Literature, Media, and Communication, Ivan Allen College of Liberal Arts, Georgia Institute of Technology\u003C\/li\u003E\u003C\/ul\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cul\u003E\u003Cli\u003EDr. Heidi Diefus-Dux,\u0026nbsp; Department of Biological Systems Engineering, College of Engineering, University of Nebraska\u2013Lincoln\u003C\/li\u003E\u003C\/ul\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETitle\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EEnhancing High School Counselors\u2019 Knowledge and Confidence in Promoting Construction Management Careers: A Mixed Method Study\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EThe U.S. construction industry faces a significant and escalating shortage of construction management (CM) professionals driven by an aging workforce, increasing project demand and complexity, and a limited pipeline of students entering CM degree programs. These challenges are further compounded by disconnects between industry workforce needs and the career guidance students receive in high school settings. Although CM offers stable and high-opportunity career pathways, many students remain unaware of the profession. High school counselors, who play a critical role in shaping students\u2019 postsecondary trajectories, often report limited knowledge of CM and low confidence in advising students about CM career pathways. These advising gaps restrict students\u2019 access to CM opportunities and contribute to long-term workforce shortages.\u003C\/p\u003E\u003Cp\u003ETo address these gaps, this study investigates how targeted professional development influences high school counselors\u2019 confidence in advising students about construction management careers. The professional development intervention incorporates structured CM instructional content alongside an experiential learning component using a virtual reality (VR) module derived from the NSF-funded Virtual\/Augmented-Reality-Based Discipline Exploration Rotations (VADER-R) project. While VR-based tools have been explored for student recruitment, their application in counselor-focused professional development remains limited.\u003C\/p\u003E\u003Cp\u003EGrounded in Social Cognitive Career Theory (SCCT), this mixed-methods study focuses on counselor self-efficacy as the primary construct of interest. The study develops and validates a construction management\u2013specific adaptation of the Career Counseling Self-Efficacy Scale (CCSES-CM) to measure counselors\u2019 confidence in advising students about CM pathways. In the quantitative phase, a pre\u2013post design is used to assess changes in counselors\u2019 CM advising self-efficacy following participation in the professional development workshop. In the qualitative phase, semi-structured interviews are conducted with a sample of participants to further explore how the intervention influenced their confidence, perceptions, and advising intentions.\u003C\/p\u003E\u003Cp\u003EThe anticipated contributions of this study are threefold. First, it provides a validated, discipline-specific instrument (CCSES-CM) for measuring counselor self-efficacy in construction management advising. Second, it offers empirical evidence on how targeted professional development can strengthen counselors\u2019 confidence in promoting workforce-critical career pathways. Third, it presents a scalable and adaptable professional development model that can be implemented by school districts, higher education institutions, and workforce development organizations. By strengthening counselors\u2019 capacity to communicate accurate, relevant CM career information, this research supports improved alignment between educational advising systems and the construction industry\u0027s\u0026nbsp;workforce needs.\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EEnhancing High School Counselors\u2019 Knowledge and Confidence in Promoting Construction Management Careers: A Mixed Method Study\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Enhancing High School Counselors\u2019 Knowledge and Confidence in Promoting Construction Management Careers: A Mixed Method Study"}],"uid":"27707","created_gmt":"2026-04-19 01:27:20","changed_gmt":"2026-04-19 01:28:14","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-01T12:00:00-04:00","event_time_end":"2026-05-01T14:00:04-04:00","event_time_end_last":"2026-05-01T14:00:04-04:00","gmt_time_start":"2026-05-01 16:00:00","gmt_time_end":"2026-05-01 18:00:04","gmt_time_end_last":"2026-05-01 18:00:04","rrule":null,"timezone":"America\/New_York"},"location":"TEAMS","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689858":{"#nid":"689858","#data":{"type":"event","title":"PhD Defense by Na Liu","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EName:\u0026nbsp;Na Liu\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ESchool of Psychology \u2013 Ph.D. Dissertation Defense Meeting\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDate: Friday, May 1st, 2026\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETime\u003C\/strong\u003E: 2:00 PM - 3:30 PM\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ELocation\u003C\/strong\u003E: \u003Ca href=\u0022https:\/\/teams.microsoft.com\/meet\/280702586324498?p=LJWO3M5R4LkHhjUhr8\u0022 title=\u0022https:\/\/teams.microsoft.com\/meet\/280702586324498?p=LJWO3M5R4LkHhjUhr8\u0022\u003ENa Liu\u0027s Dissertation Defense | Meeting-Join | Microsoft Teams\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDissertation Committee Chair\/Advisor:\u003C\/strong\u003E\u003Cbr\u003EJames Roberts, Ph.D. (Georgia Tech)\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDissertation Committee Members:\u003C\/strong\u003E\u003Cbr\u003EAudrey Leroux, Ph.D. (Georgia Tech)\u003Cbr\u003EDingjing Shi, Ph.D. (Georgia Tech)\u003Cbr\u003EMark Himmelstein, Ph.D. (Georgia Tech)\u003Cbr\u003EHongli Li, Ph.D. (Georgia State University)\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETitle: Enhancing Precision in the Generalized Graded Unfolding Model (GGUM) Using Successive Interval Judgements Indicative of Item Location\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract:\u0026nbsp;\u003C\/strong\u003EThe Generalized Graded Unfolding Model (GGUM) is an ideal-point item response theory model suited to measuring non-cognitive constructs such as attitudes, emotions, and personality. A practical limitation of the GGUM is its requirement for large samples (N \u0026gt; 750) to achieve stable parameter recovery. This dissertation evaluated whether integrating collateral item location information from the Method of Successive Intervals (MSI) into the traditional GGUM could improve parameter recovery and reduce sample size requirements. A Monte Carlo simulation study crossed two sample sizes (N = 300, 750), two response formats (2- and 6-category), and two MSI\u2013trait correlations (r = .50, .80) across 10 replications per cell. Parameter recovery for item discriminations (\u03b1), item locations (\u03b4), person locations (\u03b8), and response category thresholds (\u03c4) was evaluated using root mean square deviation (RMSD), posterior standard deviation (PSD), and relative parameter bias (RPB). An empirical comparison was also conducted using attitude-toward-abortion data from 40 items administered to undergraduate participants at the Georgia Institute of Technology. Simulation results showed that estimation quality was driven primarily by sample size and response format, whereas model-related effects were uniformly small and did not favor the new model. In the empirical comparison, posterior summaries for \u03b1, \u03b8, and \u03c4 were highly similar across models, and \u03b4 differences were broadly homogeneous across replications. Overall, adding MSI-based collateral information to the GGUM did not produce consistent or practically meaningful improvements in parameter recovery under the conditions examined.\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cstrong\u003EEnhancing Precision in the Generalized Graded Unfolding Model (GGUM) Using Successive Interval Judgements Indicative of Item Location\u003C\/strong\u003E\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Enhancing Precision in the Generalized Graded Unfolding Model (GGUM) Using Successive Interval Judgements Indicative of Item Location"}],"uid":"27707","created_gmt":"2026-04-19 01:23:37","changed_gmt":"2026-04-19 01:24:15","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-01T14:30:00-04:00","event_time_end":"2026-05-01T15:00:00-04:00","event_time_end_last":"2026-05-01T15:00:00-04:00","gmt_time_start":"2026-05-01 18:30:00","gmt_time_end":"2026-05-01 19:00:00","gmt_time_end_last":"2026-05-01 19:00:00","rrule":null,"timezone":"America\/New_York"},"location":"TEAMS","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689857":{"#nid":"689857","#data":{"type":"event","title":"PhD Proposal by Preksha Vichare","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EPreksha Vichare\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cem\u003Ewill propose a doctoral thesis entitled\u003C\/em\u003E,\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003EMechanical role of porous mesh for improved dewatering\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cem\u003EOn\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003EThursday, April 23 at 10:00 am\u003Cbr\u003EEBB Krone 4029\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAnd\u003C\/p\u003E\u003Cp\u003EVirtually via\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/teams.microsoft.com\/meet\/24976321543276?p=ANkvYNTOTzqcYcTy16\u0022\u003Ehttps:\/\/teams.microsoft.com\/meet\/24976321543276?p=ANkvYNTOTzqcYcTy16\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EMeeting ID: 249 763 215 432 76\u003C\/p\u003E\u003Cp\u003EPasscode: dG9Y6Q9w\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E\u003Cbr\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Dr. Blair Brettmann \u2013 School of Materials Science and Engineering\u0026nbsp;(Advisor)\u003Cbr\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Dr. Victor Breedveld\u0026nbsp;\u2013 School of Chemical and Biological Engineering (Co-advisor)\u003Cbr\u003E\u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; Dr. Christopher Luettgen\u0026nbsp;\u2013 School of Chemical and Biological Engineering\u003C\/p\u003E\u003Cp\u003E\u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; Dr. Donggang Yao\u2013 School of Materials Science and Engineering\u003C\/p\u003E\u003Cp\u003E\u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; Dr. Mary Lynn Realff\u2013 School of Materials Science and Engineering\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EThe papermaking process is highly energy-intensive, with the drying stage accounting for up to 50% of a paper mill\u2019s total energy consumption. To reduce this energy demand, one promising approach is to maximize water removal during the forming and pressing stages prior to evaporation. During pressing, the wet paper is compressed against a felt to drive water out of the paper and into the felt. However, during decompression, the paper web undergoes pore expansion, leading to undesired return of water (rewet). Introducing a stiff, porous mesh layer between the paper and felt improves dewatering by disrupting the liquid bridges that flow back into the fibrous paper. This thesis investigates how the\u0026nbsp;design and intrinsic properties of the mesh porous layer affect dewatering. This includes evaluating the role of mesh geometry, understanding how stress distribution from these porous layers affects the wet fibrous paper, and analyzing transient behavior during compression-decompression cycles.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EIn the first part of this thesis, I will investigate how the void volume of the mesh provides pathways for fluid to travel between the paper and the felt. I will also study how stacking multiple porous mesh layers between the paper and felt affects dewatering performance. In the second part, I will focus on the role of pressure distribution, specifically how uniform stress and compaction of the paper sheet affect the efficiency of the dewatering process. In the last part, I will examine time as a key process variable and evaluate its influence on the overall pressing system during cyclic pressing. Overall, this research seeks to develop a framework to optimize the mesh\u2013felt system and improve dewatering efficiency by understanding the interactions among layered porous materials during press cycles.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EMechanical role of porous mesh for improved dewatering\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Mechanical role of porous mesh for improved dewatering"}],"uid":"27707","created_gmt":"2026-04-19 01:18:57","changed_gmt":"2026-04-19 01:19:40","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-23T10:00:00-04:00","event_time_end":"2026-04-23T12:00:36-04:00","event_time_end_last":"2026-04-23T12:00:36-04:00","gmt_time_start":"2026-04-23 14:00:00","gmt_time_end":"2026-04-23 16:00:36","gmt_time_end_last":"2026-04-23 16:00:36","rrule":null,"timezone":"America\/New_York"},"location":"EBB Krone 4029","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689855":{"#nid":"689855","#data":{"type":"event","title":"PhD Defense by Gennie Mansi","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle: Understanding the Intersections of AI, User Needs, and Law\u003C\/strong\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDate:\u0026nbsp;\u003C\/strong\u003EWednesday, April 29, 2026\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETime:\u003C\/strong\u003E\u0026nbsp;10:30 AM - 12:30 PM, Eastern time (U.S.)\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ELocation:\u003C\/strong\u003E\u0026nbsp;Coda C1115 Druid Hills\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EVirtual Meeting (hybrid):\u003C\/strong\u003E\u0026nbsp;\u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fgatech.zoom.us%2Fj%2F91333564325\u0026amp;data=05%7C02%7Ctm186%40gtvault.onmicrosoft.com%7C59a448558bbf435b160f08de9cb5e284%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639120502213596745%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=qI%2FJjfjqegNYzXn2Q%2B3Z9b1HzAIBjWYDvITbLfEctAU%3D\u0026amp;reserved=0\u0022\u003Ehttps:\/\/gatech.zoom.us\/j\/91333564325\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EGennie Mansi\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EHCC PhD Candidate\u003C\/p\u003E\u003Cp\u003ESchool of Interactive Computing,\u0026nbsp;College of Computing\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Mark Riedl (Advisor) - School of\u0026nbsp;Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EMr. Benjamin Sundholm, JD - Tulane Law School, Tulane University\u003C\/p\u003E\u003Cp\u003EDr. Naveena Karusala - School of Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Andrea Parker -\u0026nbsp;School of Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Agata Rozga - College of Computing,\u0026nbsp;Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cbr\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ESummary:\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EAs AI tools are incorporated into high-stakes decision-making environments, such as healthcare and education, people need to act meaningfully in response to AI outputs. This thesis advances\u0026nbsp;\u003Cem\u003Eactionability\u2014\u003C\/em\u003Ehow AI tools and their explanations enable pragmatic action by people in complex sociotechnical environments shaped by power dynamics. I make two central arguments: first, that we can improve people\u2019s ability to act with AI tools by examining how their actions and information needs connect to the ways they care for themselves and others; and second, that understanding how laws and regulations \u0026nbsp;impact people\u2019s ability to care with AI tools, we can inform the creation and use of AI tools to support people navigating uneven or unknown risks.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EThis work deepens our understanding of actionability in 5 parts. I discuss how I created a user-centered catalog of information and actions to re-orient the design and evaluation of AI tools around users\u0027 needs. Building on this foundation, I draw out the complexities of enabling actionability through an in-depth investigation of physicians\u0027 needs, first uncovering how care\u2014including laws, regulations, and collective responsibility for patient well-being\u2014shapes actionability in ways current AI tools\u2019 designs often overlook. Informed by the ways care highlights laws and regulations as a contextual factor, I investigate how doctors\u0027 perceptions of potential errors connect to their legal concerns for AI tools. I show that doctors do not connect legal risks to AI tools\u2019 capabilities, and I discuss how this gap may result in unintentional harm in the form of defensive medical practices. To address these gaps, I describe an assets-based, co-design process with lawyers that used visualizations to surface tacit legal knowledge and generate strategies for stakeholders to predict and manage legal risks, revealing how power dynamics shape actionability. Finally, I ground these findings in practice through an analysis of 31 U.S. legal cases, identifying how a complex web of stakeholders and widely deployed AI tools negatively impact patient care, and proposing paths forward through revised liability structures and tools that support legal recourse for patients.\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cstrong\u003EUnderstanding the Intersections of AI, User Needs, and Law\u003C\/strong\u003E\u0026nbsp;\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Understanding the Intersections of AI, User Needs, and Law "}],"uid":"27707","created_gmt":"2026-04-19 01:12:48","changed_gmt":"2026-04-19 01:13:25","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-29T10:30:24-04:00","event_time_end":"2026-04-29T12:30:24-04:00","event_time_end_last":"2026-04-29T12:30:24-04:00","gmt_time_start":"2026-04-29 14:30:24","gmt_time_end":"2026-04-29 16:30:24","gmt_time_end_last":"2026-04-29 16:30:24","rrule":null,"timezone":"America\/New_York"},"location":"Coda C1115 Druid Hills ","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689854":{"#nid":"689854","#data":{"type":"event","title":"PhD Proposal by Adrian Choi","body":[{"value":"\u003Cp\u003ETitle: Infrastructuring Critically Conscious Networked Publics for a More Inclusive Democracy\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAdrian Choi\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EPh.D. Student in Human-Centered Computing (HCC)\u0026nbsp;\u003C\/p\u003E\u003Cp\u003ESchool of Interactive Computing\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDate: Monday, May 11th, 2026\u003C\/p\u003E\u003Cp\u003ETime: 10:00 AM-1:00 PM EST\u0026nbsp;\u003C\/p\u003E\u003Cp\u003ELocation: TSRB 217A or \u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fgatech.zoom.us%2Fj%2F92501046602%3Fpwd%3DZZ1sNubf8F7aDD1hMsYkcsMOizP0qd.1\u0026amp;data=05%7C02%7Ctm186%40gtvault.onmicrosoft.com%7Cd40d9b709a7c49dd30c208de9ccd5e9f%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639120603075090660%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=QkwfzjdokmtTLHcGTuhUPYhNkSm51SIZZpatUI%2BB9YY%3D\u0026amp;reserved=0\u0022 title=\u0022https:\/\/gatech.zoom.us\/j\/92501046602?pwd=ZZ1sNubf8F7aDD1hMsYkcsMOizP0qd.1\u0022\u003EJoin via Zoom\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Andrea G. Parker (Advisor) \u2013\u0026nbsp;School of Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Lynn Dombrowski \u2013\u0026nbsp;School of Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Neha Kumar \u2013\u0026nbsp;School of Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Brooke Foucault Welles \u2013 College of Arts, Media, and Design, Northeastern University\u003C\/p\u003E\u003Cp\u003EDr. Christopher Le Dantec \u2013 College of Arts, Media, and Design and the Khoury College of Computer Sciences, Northeastern University\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EFree spaces have historically operated as safe learning environments where marginalized youth engage in critical reflection to build civic capacity and mobilize as counter-publics to contest the broader public sphere. However, as youth coalesce around political issues using networked technologies like social media, the formation of these publics becomes actively mediated by commercial technologies. While these technologies allow counter-publics to scale their political discourse, their underlying infrastructure often erodes the conditions necessary for sustaining critical awareness and engaging in constructive deliberation. As such, there is a need to examine how to scaffold technologically-mediated environments that cultivate critically conscious publics in support of an inclusive deliberative democracy.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EI present five studies analyzing how sociotechnical assemblages shape critically conscious youth publics. My completed work examines youths\u0027 critical consciousness when using social media, investigates how members of a youth empowerment program (YEP) were thwarted even after infrastructuring to sustain a free space, and maps the socio-material conditions necessary for forming healthy networked publics. My proposed work investigates how technology-mediated discourse shapes youths\u0027 critical consciousness by analyzing media narratives after police killed Eric Garner. Concurrently, I examine the role of civic data in infrastructuring critically conscious publics within participatory design, aligning public data with YEPs to probe youths\u0027 attachments to matters of concern.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EThis dissertation proposal aims to advance our knowledge of the infrastructuring work involved in scaffolding youths\u0027 critical consciousness. By empirically examining YEPs as free spaces alongside the circulation of counter-public discourse online, this work reveals how sociotechnical assemblages can either support or threaten critically conscious publics. Building on these insights, I discuss the precarious nature of infrastructuring these physical and digital spaces, considering the conditions necessary for sociotechnical infrastructures to align with critical pedagogy and support more inclusive democratic deliberation.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EInfrastructuring Critically Conscious Networked Publics for a More Inclusive Democracy\u0026nbsp;\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Infrastructuring Critically Conscious Networked Publics for a More Inclusive Democracy "}],"uid":"27707","created_gmt":"2026-04-19 01:09:16","changed_gmt":"2026-04-19 01:10:53","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-11T10:00:00-04:00","event_time_end":"2026-05-11T13:00:46-04:00","event_time_end_last":"2026-05-11T13:00:46-04:00","gmt_time_start":"2026-05-11 14:00:00","gmt_time_end":"2026-05-11 17:00:46","gmt_time_end_last":"2026-05-11 17:00:46","rrule":null,"timezone":"America\/New_York"},"location":"TSRB 217A or Join via Zoom","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689799":{"#nid":"689799","#data":{"type":"event","title":"Ph.D. Proposal Oral Exam - Chun-wei Ho","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp; \u003C\/strong\u003E\u003Cem\u003EA Knowledge-driven approach to Audio Segmentation, Target Music Extraction and Cinematic Audio Source Separation\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Chin-Hui Lee, Advisor\u003C\/p\u003E\u003Cp\u003EDr. Moore, Chair\u003C\/p\u003E\u003Cp\u003EDr. Anderson\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe objective of the proposed research is to develop a unified knowledge-guided framework for audio processing that integrates audio segmentation, target music extraction (TME), and cinematic audio source separation (CASS). Real-world audio recordings exhibit highly diverse and overlapping acoustic conditions, where precise temporal boundaries are ambiguous, target sources are not clearly separated, and many sound events are rare or poorly represented in training data. Conventional data-driven approaches struggle under such conditions due to limited supervision and the lack of structured guidance. This research investigates how auxiliary knowledge, such as speech transcripts, musical scores, instrument and artist information, and language-universal speech attributes, can be systematically incorporated to constrain and guide model learning, particularly in resource-limited and real-world scenarios.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"A Knowledge-driven approach to Audio Segmentation, Target Music Extraction and Cinematic Audio Source Separation"}],"uid":"28475","created_gmt":"2026-04-16 18:58:22","changed_gmt":"2026-04-16 18:59:33","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-30T09:00:00-04:00","event_time_end":"2026-04-30T11:00:00-04:00","event_time_end_last":"2026-04-30T11:00:00-04:00","gmt_time_start":"2026-04-30 13:00:00","gmt_time_end":"2026-04-30 15:00:00","gmt_time_end_last":"2026-04-30 15:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Room 5126, Centergy ","extras":[],"groups":[{"id":"434371","name":"ECE Ph.D. Proposal Oral Exams"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"},{"id":"1808","name":"graduate students"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689798":{"#nid":"689798","#data":{"type":"event","title":"Ph.D. Proposal Oral Exam - Jungjin Park","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp; \u003C\/strong\u003E\u003Cem\u003EAdaptation technique for energy-efficient digital baseband processor\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Sathe, Advisor\u003C\/p\u003E\u003Cp\u003EDr. Romberg, Chair\u003C\/p\u003E\u003Cp\u003EDr. Raychowdhury\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe objective of the proposed research is to develop adaptation techniques for energy-efficient digital baseband processors in GPS acquisition and adaptive beamforming applications. Three techniques are presented: (1) an adaptive compressive sampling GPS correlator that reduces acquisition energy by 4.7x\u201351x in 65 nm CMOS, (2) a beamspace MVDR algorithm that replaces O(N\u00b3) matrix inversion with O(N log N) FFT-based operations, and (3) a gradient-descent-based beam tracker with adaptive step size and update-period control, validated in 16 nm and 28 nm CMOS implementations. Together, runtime adaptation to signal conditions delivers significant energy savings without sacrificing the digital baseband processing performance.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Adaptation technique for energy-efficient digital baseband processor"}],"uid":"28475","created_gmt":"2026-04-16 18:44:29","changed_gmt":"2026-04-16 18:46:11","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-14T13:00:00-04:00","event_time_end":"2026-05-14T15:00:00-04:00","event_time_end_last":"2026-05-14T15:00:00-04:00","gmt_time_start":"2026-05-14 17:00:00","gmt_time_end":"2026-05-14 19:00:00","gmt_time_end_last":"2026-05-14 19:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Online","extras":[],"related_links":[{"url":"https:\/\/gatech.zoom.us\/j\/92270009717","title":"Zoom link"}],"groups":[{"id":"434371","name":"ECE Ph.D. Proposal Oral Exams"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"},{"id":"1808","name":"graduate students"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689796":{"#nid":"689796","#data":{"type":"event","title":"Ph.D. Proposal Oral Exam - Prithwijit Chowdhury","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp; \u003C\/strong\u003E\u003Cem\u003ENecessity and Sufficiency: A Framework for Evaluating Information Flow in Human-AI Interaction\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. AlRegib, Advisor\u003C\/p\u003E\u003Cp\u003EDr. Muthukumar, Chair\u003C\/p\u003E\u003Cp\u003EDr. Heck\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe objective of the proposed research is to develop a unified framework for evaluating and improving the bidirectional flow of information between humans and AI systems by treating both explanations and prompts through the lens of the Information Bottleneck principle. The core idea is that human AI interaction is a communication problem in two directions. In the model to human direction, explanations must compress the model\u2019s internal reasoning into a form that preserves what a person needs to judge, trust, or correct the output. In the human to model direction, prompts must compress the user\u2019s intent into a form that is sufficient to guide model behavior without adding redundant or conflicting signal. This proposal argues that necessity and sufficiency are the right principles for analyzing both directions under one theory. A representation is necessary if removing it changes the outcome, and sufficient if providing it can produce the desired outcome. Building on this view, the research first develops causal, interventional measures of necessity and sufficiency and uses them to study existing explanation methods, showing in preliminary tabular experiments that highly ranked features are not always both necessary and sufficient. It then extends the framework to image models, where it investigates whether standard evaluation metrics truly measure information that survives the model\u2019s internal compression. Finally, it applies the same framework to interactive segmentation, where prompts are analyzed as units of information transfer, classified by their contribution, and selected actively through predictive disagreement using a Bayesian extension of SAM. Together, the proposed work aims to establish a single information theoretic account of how AI systems should communicate with humans and how humans should communicate with AI systems for effective collaborative decision making.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Necessity and Sufficiency: A Framework for Evaluating Information Flow in Human-AI Interaction"}],"uid":"28475","created_gmt":"2026-04-16 18:37:40","changed_gmt":"2026-04-16 18:38:54","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-30T13:30:00-04:00","event_time_end":"2026-04-30T15:30:00-04:00","event_time_end_last":"2026-04-30T15:30:00-04:00","gmt_time_start":"2026-04-30 17:30:00","gmt_time_end":"2026-04-30 19:30:00","gmt_time_end_last":"2026-04-30 19:30:00","rrule":null,"timezone":"America\/New_York"},"location":"Room 5126, Centergy ","extras":[],"related_links":[{"url":"https:\/\/teams.microsoft.com\/meet\/261248830865929?p=GB6tcutDY1hEvO6fv6","title":"Microsoft Teams Link "}],"groups":[{"id":"434371","name":"ECE Ph.D. Proposal Oral Exams"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"},{"id":"1808","name":"graduate students"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689794":{"#nid":"689794","#data":{"type":"event","title":"Ph.D. Proposal Oral Exam - Faaiq Waqar","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp; \u003C\/strong\u003E\u003Cem\u003EBottom-Up System-Technology Co-design of Emerging Amorphous Oxide Semiconductor Memories for High-Performance and Reconfigurable Computing Machines\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Yu, Advisor\u003C\/p\u003E\u003Cp\u003EDr. Hao, Chair\u003C\/p\u003E\u003Cp\u003EDr. Mukhopadhyay\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe objective of the proposed research is to address the scaling bottlenecks and static power inefficiencies of SRAM by investigating monolithic 3D (M3D) integration of back-end-of-line (BEOL)-compatible amorphous oxide semiconductor (AOS) memories, including capacitive topologies such as eDRAMs and gain cells and AOS-based SRAM, to address conventional SRAM\u2019s scaling and power limitations while preserving its most desirable attributes. Specifically, this work seeks to determine how key AOS device characteristics, including operating voltage, current drive, parasitic capacitance, retention, and variation tolerance, propagate through bitcell and array design to shape the energy, latency, density, and scalability of monolithically integrated 3D memories. To this end, the research develops compact-model and logical-effort-based evaluation frameworks that connect device calibration and SPICE-level circuit analysis to cycle-accurate architectural benchmarking, enabling rigorous study of AOS memories in both conventional memory hierarchies and reconfigurable systems.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Bottom-Up System-Technology Co-design of Emerging Amorphous Oxide Semiconductor Memories for High-Performance and Reconfigurable Computing Machines"}],"uid":"28475","created_gmt":"2026-04-16 18:12:39","changed_gmt":"2026-04-16 18:29:39","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-27T13:00:00-04:00","event_time_end":"2026-04-27T15:00:00-04:00","event_time_end_last":"2026-04-27T15:00:00-04:00","gmt_time_start":"2026-04-27 17:00:00","gmt_time_end":"2026-04-27 19:00:00","gmt_time_end_last":"2026-04-27 19:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Online","extras":[],"related_links":[{"url":"https:\/\/teams.microsoft.com\/meet\/23256293679028?p=VRiBQw4gOfnary7mmZ","title":"Microsoft Teams Link "}],"groups":[{"id":"434371","name":"ECE Ph.D. Proposal Oral Exams"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"},{"id":"1808","name":"graduate students"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689795":{"#nid":"689795","#data":{"type":"event","title":"Ph.D. Proposal Oral Exam - Yavuz Yarici","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp; \u003C\/strong\u003E\u003Cem\u003EUnderstanding and Utilizing Domain-Dependent Information Structure in Multimodal Systems\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. AlRegib, Advisor\u003C\/p\u003E\u003Cp\u003EDr. Vela, Chair\u003C\/p\u003E\u003Cp\u003EDr. Calhoun\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe objective of the proposed research is to characterize the domain-dependent structure of task-relevant information in multimodal systems and to develop methods that maintain robust performance under distribution shift. One of the main promises of multimodal learning is to combine data from multiple sensing modalities via the use of their complementary information for a targeted downstream task. However, the benefits of multimodal fusion are typically demonstrated when training and evaluation data share the same distribution. Domain generalization methods address distribution shift for single-modality systems, but do not account for the interactions that arise when multiple encoders are trained jointly through a shared objective. While information-theoretic frameworks provide a principled decomposition of task-relevant information into redundant, unique, and synergistic components, they assume stationary distributions. How this information structure changes under domain shift, and how such changes interact with joint optimization, remain unexplored. This proposal addresses this gap by analyzing how each component of multimodal information varies across domains and by developing training procedures that preserve robust representations under domain shift. Preliminary research establishes that multimodal fusion improves accuracy under matched conditions, but this advantage diminishes under distribution shift. The proposed research characterizes how domain shift affects multimodal information structure and develops methods to maintain robust performance.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Understanding and Utilizing Domain-Dependent Information Structure in Multimodal Systems"}],"uid":"28475","created_gmt":"2026-04-16 18:26:02","changed_gmt":"2026-04-16 18:27:11","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-22T15:00:00-04:00","event_time_end":"2026-04-22T17:00:00-04:00","event_time_end_last":"2026-04-22T17:00:00-04:00","gmt_time_start":"2026-04-22 19:00:00","gmt_time_end":"2026-04-22 21:00:00","gmt_time_end_last":"2026-04-22 21:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Room 5126, Centergy ","extras":[],"related_links":[{"url":"https:\/\/teams.microsoft.com\/meet\/2365305733776?p=RUG0VJyE5W3Th8UEYL","title":"Microsoft Teams Link "}],"groups":[{"id":"434371","name":"ECE Ph.D. Proposal Oral Exams"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"},{"id":"1808","name":"graduate students"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689784":{"#nid":"689784","#data":{"type":"event","title":"PHD Defense by Bangyuan Liu  ","body":[{"value":"\u003Cp\u003ETitle: Maneuverability and Morphological Adaptability in Soft Underwater Robots for Cluttered Environments\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDate: Friday, April 24th, 2026 \u0026nbsp;\u003C\/p\u003E\u003Cp\u003ETime: 2:00 PM \u2013 4:00 PM ET \u0026nbsp;\u003C\/p\u003E\u003Cp\u003ELocation: Remote (Zoom) \u0026nbsp;\u003C\/p\u003E\u003Cp\u003EVirtual Link: \u003Ca href=\u0022https:\/\/gatech.zoom.us\/j\/95008488072\u0022\u003Ehttps:\/\/gatech.zoom.us\/j\/95008488072\u003C\/a\u003E \u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EBangyuan Liu \u0026nbsp;\u003C\/p\u003E\u003Cp\u003ERobotics Ph.D. Candidate \u0026nbsp;\u003C\/p\u003E\u003Cp\u003ESchool of Mechanical Engineering \u0026nbsp;\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology \u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003ECommittee: \u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDr. Frank L. Hammond III (Advisor) \u2013 School of Mechanical Engineering, Georgia Institute of Technology \u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDr. Daniel I. Goldman\u0026nbsp;\u2013 School of Physics, Georgia Institute of Technology \u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDr. Alper Erturk \u2013 School of Mechanical Engineering, Georgia Institute of Technology \u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDr. Layne R. Churchill \u2013 Georgia Tech Research Institute \u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDr. Howie Choset \u2013 Robotics Institute, Carnegie Mellon University \u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAbstract: \u0026nbsp;\u003C\/p\u003E\u003Cp\u003EManeuverability and adaptability are essential capabilities for underwater robots operating in cluttered and constrained environments, where conventional rigid-body vehicles often struggle. This dissertation investigates a family of soft, modular, non-biomorphic swimming robots that leverage mechanical compliance and underactuated design to achieve robust locomotion and interaction with complex environments without reliance on complex sensing or feedback control. We present a series of robotic systems and experiments that progressively explore the relationship between body morphology, actuation, and body\u2013environment interaction. First, we demonstrate how a minimal actuation architecture enables diverse locomotion behaviors, including a novel roll rotation maneuver that provides full three-dimensional maneuverability. Next, we show that intrinsic morphological features, such as compliant, vertebra-like body structures and passive foldable fins, allow the robot to traverse narrow gaps and complex obstacles through passive mechanical adaptation. Building on these insights, we investigate how body scaling and structural parameters influence locomotion performance, revealing the existence of an effective body compliance regime that balances deformation and force transmission for efficient propulsion. Finally, we introduce an actively controllable fin system that extends morphological adaptability through fluidic actuation, enabling dynamic stiffness modulation and improved environmental interaction. Together, this work establishes a design framework for underwater robots that integrates maneuverability, compliance, and adaptability, offering a pathway toward robust operation in complex real-world aquatic environments.\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EManeuverability and Morphological Adaptability in Soft Underwater Robots for Cluttered Environments\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Maneuverability and Morphological Adaptability in Soft Underwater Robots for Cluttered Environments"}],"uid":"27707","created_gmt":"2026-04-15 21:16:19","changed_gmt":"2026-04-15 21:17:02","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-24T14:00:00-04:00","event_time_end":"2026-04-24T16:00:32-04:00","event_time_end_last":"2026-04-24T16:00:32-04:00","gmt_time_start":"2026-04-24 18:00:00","gmt_time_end":"2026-04-24 20:00:32","gmt_time_end_last":"2026-04-24 20:00:32","rrule":null,"timezone":"America\/New_York"},"location":"Remote (Zoom)  ","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689782":{"#nid":"689782","#data":{"type":"event","title":"PhD Proposal by Haya Helmy","body":[{"value":"\u003Cp\u003E\u003Cbr\u003EStudent Name: Haya Helmy\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAdvisor: Dr. Dimitri Mavris\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EMilestone: PhD Thesis Proposal\u003Cbr\u003E\u003Cbr\u003EDegree Program: Aerospace Engineering\u003Cbr\u003E\u003Cbr\u003ETitle: A Model-Based System-of-Systems Architecting Framework for Lunar Base Master Planning, Evaluation, and Design Space Exploration\u003Cbr\u003E\u003Cbr\u003EAbstract: This research addresses the problem of architecting the lunar base system-of-systems for long-term human presence and driven by stakeholder objectives. As global space agencies, militaries, and commercial companies pursue a sustained presence on the lunar surface, there is a need to establish a physical lunar base capable of supporting scientific, commercial, and national objectives while evolving over time. However, current lunar base site plans lack a comprehensive, systematic process for planning the physical layout and do not account for spatial placement, connectivity, environmental constraints, or how the architecture will grow and adapt under changing requirements and increasing operational complexity. This work approaches the lunar base as a complex system-of-systems and develops a model-based systems architecting framework for generating, evaluating, and evolving lunar base architectures. System architecture decisions are formalized and structured to produce architecture instances through a generative process informed by urban planning practices, capturing the mapping of function to form, as well as spatial\/topological and connectivity relationships among the objects of form. The framework leverages model-based systems engineering (MBSE) to capture, query, and trace architectural decisions to the resulting configurations. To enable quantitative evaluation, the framework establishes a connection between MBSE architecture models and multidisciplinary analysis and optimization (MDAO) models through a graph-based transformation mechanism, enabling architecture-specific evaluation of system interactions, resource flows, and infrastructure networks. This allows consistent evaluation of architecture performance while preserving traceability between architectural decisions and analysis results. Given the combinatorial explosion of possible architecture configurations, the design space is characterized by mixed-discrete, hierarchical decision variables and multiple conflicting objectives. To address this system architecture optimization (SAO) problem, population-based multi-objective algorithms augmented with surrogate models are used to efficiently explore the design space and converge to pareto-optimal architectures.\u0026nbsp; In all, this research establishes a repeatable and systematic methodology for lunar base master planning that integrates architecture generation, transformation for evaluation, and optimization. The methodology enables the analysis and evolution of architecture alternatives for long-term, scalable, and adaptable lunar surface infrastructure.\u003Cbr\u003E\u003Cbr\u003EDate and time: 2026-04-24, 9 AM\u003Cbr\u003E\u003Cbr\u003ELocation: Collaborative Visual Environment (CoVE) Room in Weber Space Science and Technology Building\u003Cbr\u003E\u003Cbr\u003ECommittee:\u003Cbr\u003EDr. Dimitri Mavris (advisor), School of Aerospace Engineering\u003Cbr\u003EDr. Daniel Schrage, School of Aerospace Engineering\u003Cbr\u003EDr. Perry Yang, School of City and Regional Planning\u003Cbr\u003EDr. Jud Ready, GT Space Research Institute\u003Cbr\u003EDr. Michael Balchanos, School of Aerospace Engineering\u003Cbr\u003E,\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EA Model-Based System-of-Systems Architecting Framework for Lunar Base Master Planning, Evaluation, and Design Space Exploration\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"A Model-Based System-of-Systems Architecting Framework for Lunar Base Master Planning, Evaluation, and Design Space Exploration"}],"uid":"27707","created_gmt":"2026-04-15 21:08:44","changed_gmt":"2026-04-15 21:09:29","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-24T09:00:00-04:00","event_time_end":"2026-04-24T11:00:00-04:00","event_time_end_last":"2026-04-24T11:00:00-04:00","gmt_time_start":"2026-04-24 13:00:00","gmt_time_end":"2026-04-24 15:00:00","gmt_time_end_last":"2026-04-24 15:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Collaborative Visual Environment (CoVE) Room in Weber Space Science and Technology Building","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689781":{"#nid":"689781","#data":{"type":"event","title":"PhD Defense by Victor Yang","body":[{"value":"\u003Cp\u003EStudent Name: Victor Yang\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAdvisor: Dr. Dimitri Mavris\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EMilestone: PhD Thesis Final Examination (Defense)\u003Cbr\u003E\u003Cbr\u003EDegree Program: Aerospace Engineering\u003Cbr\u003E\u003Cbr\u003ETitle: A Design Methodology For Resilient Cislunar Space Domain Awareness Architectures\u003Cbr\u003E\u003Cbr\u003EAbstract: Cislunar space is the next frontier of human space exploration as scientific and commercial missions by national agencies and private entities are driving a renewed race to the Moon. Long-term human presence in this domain depends on supporting infrastructure, of which space domain awareness is a critical component that tackles the detection, tracking, and identification of space objects. SDA has been crucial for near-Earth applications, and the same need will follow as activity in cislunar space grows. Systems resilience as developed for terrestrial infrastructure and for space mission success motivates this work on resilient SDA design. Traditional design processes consider resilience analysis as robustness or disruption analysis after the conceptual design phase, when high-level performance and cost trades are already conducted. Layering resilience onto fixed architectures yields a narrow solution space and weak traceability between resilience outcomes and design decisions. The core technical barrier that blocks resilience from entering the conceptual phase is the modeling complexity of resilience evaluation, where it must be concretely defined, simulated, and measured rapidly enough to participate within the optimization loop. This thesis develops a methodology that brings system-of-systems resilience into the conceptual design of cislunar SDA architectures through a phase-based performance framework, with three research questions derived from the technical gaps. First, a flow-weighted supra-adjacency matrix (FW-SAM) was developed as a graph-based replacement for discrete-event DTN simulation. Encoding sensing, communication, and relay flow in a single sparse matrix, the FW-SAM evaluates downlink efficiency directly from its structure. The second research question addresses graph-based robustness metrics, with sensor performance loss, downlink efficiency loss, and relay efficiency impact derived directly from the FW-SAM. The third research question formulates an analytic resilience integral combining preemption probability, robustness, recovery time, and an adaptation trajectory with a phase-decomposed cost model, where the integral couples resilience investment to the architecture being designed. The validated methods are composed into a multi-objective optimization spanning constellation architecture and resilience phase variables. All-in-One Integrated Resilience Optimization (AIRO) jointly optimizes all variables with, tested against two sequential baselines, with and without resilience optimization. AIRO produced wider Pareto spread on all three objectives and discovered more than twice the architecture classes of the sequential approach, including constellations with lower sensor capability paired with high adaptation investment that the sequential methods cannot find. The resilience objective also drove orbit diversity beyond what performance and cost optimization together could produce. The graph surrogate, the analytic resilience integral, and the architecture-coupled cost model make resilience tractable inside the computational budget of evolutionary optimization, enabling enhanced resilience tradespace exploration for future cislunar SDA systems.\u0026nbsp;\u003Cbr\u003E\u003Cbr\u003EDate and time: 2026-04-24, 1:30 PM\u003Cbr\u003E\u003Cbr\u003ELocation: Code\/Cove\u003Cbr\u003E\u003Cbr\u003ECommittee:\u003Cbr\u003EDr. Dimitri Mavris (advisor), School of Aerospace Engineering\u003Cbr\u003EDr. Brian Gunter, School of Aerospace Engineering\u003Cbr\u003EDr. Kyriakos Vamvoudakis, School of Aerospace Engineering\u003Cbr\u003EDr. Michael Balchanos, chool of Aerospace Engineering\u003Cbr\u003EDr. Michael Steffens, Draper Laboratory\u003Cbr\u003E,\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EA Design Methodology For Resilient Cislunar Space Domain Awareness Architectures\u003Cbr\u003E\u003Cbr\u003E\u0026nbsp;\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"A Design Methodology For Resilient Cislunar Space Domain Awareness Architectures"}],"uid":"27707","created_gmt":"2026-04-15 21:06:34","changed_gmt":"2026-04-15 21:07:03","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-24T13:30:00-04:00","event_time_end":"2026-04-24T15:00:16-04:00","event_time_end_last":"2026-04-24T15:00:16-04:00","gmt_time_start":"2026-04-24 17:30:00","gmt_time_end":"2026-04-24 19:00:16","gmt_time_end_last":"2026-04-24 19:00:16","rrule":null,"timezone":"America\/New_York"},"location":"Code\/Cove","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689780":{"#nid":"689780","#data":{"type":"event","title":"PhD Proposal by Angel Mario Zarate Villazon","body":[{"value":"\u003Cp\u003EStudent Name: Angel Mario Zarate Villazon\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAdvisor: Dr. Dimitri Mavris\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EMilestone: PhD Thesis Proposal\u003Cbr\u003E\u003Cbr\u003EDegree Program: Aerospace Engineering\u003Cbr\u003E\u003Cbr\u003ETitle: A Model-Based Methodology Supporting Commonality Integration in the Lunar Surface Mobility Vehicle Family\u003Cbr\u003E\u003Cbr\u003EAbstract: The goal of the Artemis program is to establish a sustainable lunar settlement, which requires surface mobility vehicles capable of diverse, evolving missions. These use cases support exploration and infrastructure deployment activities. With challenges related to affordability and complexity, NASA has established commonality and interoperability, which relate to sharing common parts and ensuring diverse systems are compatible, as key design principles. Despite the widespread success of leveraging common vehicle platforms in the automotive and aerospace industries, current proposals for lunar surface vehicles remain largely treated as isolated systems rather than a cohesive family of systems where commonality can be leveraged. This fragmented approach overlooks the benefits that commonality can bring, such as reduced development costs and simplified lunar surface logistics and maintenance. However, transitioning to a family of systems perspective introduces complex tradeoffs between commonality and mission-specific performance, necessitating a methodology to identify where commonality should be integrated. To navigate this tradeoff, this research proposes a hybrid approach that leverages the analytical commonality and performance assessments of Product Family Design with the variability management frameworks from Product Line Engineering to support commonality integration decisions. The hybrid approach addresses three main phases of the decision-making process for commonality integration: Modeling of the variability of the lunar surface mobility family of vehicles across its operational, functional, and physical layers of abstraction in a feature model to elicit alternative designs through generative artificial intelligence. Linking simulation instances to the feature model to automatically generate physics-based constraints between these alternatives and ensure the feasibility of design alternatives. Evaluation of the commonality and performance tradeoff and the sensitivity of metric selection for the decision on integrating commonality across parts in different vehicles of the family. Overall, these contributions formulate a methodology that provides decision support on where it is appropriate to leverage commonality.\u0026nbsp; This research enables physics-driven decisions on a comprehensive description of the alternatives to decide commonality and interoperability. Ultimately, these results support the deployment of robust mobility capability across the lunar terrain through a family of vehicles that addresses the various needs for sustained human habitation on the lunar surface.\u0026nbsp;\u003Cbr\u003E\u003Cbr\u003EDate and time: 2026-05-01, 9:30 am\u003Cbr\u003E\u003Cbr\u003ELocation: COVE (Weber Building)\u003Cbr\u003E\u003Cbr\u003ECommittee:\u003Cbr\u003EDr. Dimitri Mavris (advisor), School of Aerospace Engineering\u003Cbr\u003EProf. Daniel Schrage, School of Aerospace Engineering\u003Cbr\u003EProf. Yashwanth Kumar Nakka, School of Aerospace Engineering\u003Cbr\u003EDr. Michael Balchanos, School of Aerospace Engineering\u003Cbr\u003EDr. Hugo Guillermo Chale Gongora, Airbus\u003Cbr\u003E,\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EA Model-Based Methodology Supporting Commonality Integration in the Lunar Surface Mobility Vehicle Family\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"A Model-Based Methodology Supporting Commonality Integration in the Lunar Surface Mobility Vehicle Family"}],"uid":"27707","created_gmt":"2026-04-15 20:44:59","changed_gmt":"2026-04-15 20:45:31","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-01T09:30:00-04:00","event_time_end":"2026-05-01T11:30:00-04:00","event_time_end_last":"2026-05-01T11:30:00-04:00","gmt_time_start":"2026-05-01 13:30:00","gmt_time_end":"2026-05-01 15:30:00","gmt_time_end_last":"2026-05-01 15:30:00","rrule":null,"timezone":"America\/New_York"},"location":"COVE (Weber Building)","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689779":{"#nid":"689779","#data":{"type":"event","title":"PhD Proposal by Emily Toph","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EEmily Toph\u003C\/strong\u003E\u003Cbr\u003EAdvisor: Prof. Eric Vogel\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cem\u003Ewill propose a doctoral thesis entitled\u003C\/em\u003E,\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cstrong\u003EInterface-Engineered MBE of InSe: Early-Stage Growth Control and Hall Sensor Performance\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cem\u003EOn\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003EWednesday, April 29 at 11 a.m. (EDT)\u003Cbr\u003EPettit Microelectronics Building Room 102B\u003C\/p\u003E\u003Cp\u003Eand\/or\u003C\/p\u003E\u003Cp\u003EVirtually via MS Teams or Zoom\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/teams.microsoft.com\/meet\/253152803479756?p=3APd10saNQuRogNWn9\u0022 target=\u0022_blank\u0022 title=\u0022Meeting join\u0022\u003Ehttps:\/\/teams.microsoft.com\/meet\/253152803479756?p=3APd10saNQuRogNWn9\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EMeeting ID: 253 152 803 479 756\u003C\/p\u003E\u003Cp\u003EPasscode: Nr2U7Wa9\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E\u003Cbr\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Prof. Eric Vogel \u2013 School of Materials Science and Engineering (advisor)\u003Cbr\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Prof. Mark Losego\u2013 School of Materials Science and Engineering\u003Cbr\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Prof. Faisal Alamgir \u2013 School of Materials Science and Engineering\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Prof. Alan Doolittle \u2013 School of Electrical and Computer Engineering\u003Cbr\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; \u0026nbsp;Dr. Brent Wagner \u2013 Georgia Tech Research Institute\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E\u003Cbr\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; This work aims to enable high-sensitivity, BEOL-compatible InSe Hall sensors by clarifying how the very first layers of film growth set the ultimate limits on mobility and noise. Although indium monoselenide (InSe) offers high intrinsic mobility, a layered van der Waals structure, and a suitable bandgap, MBE-grown films typically underperform exfoliated crystals because defects and competing phases are \u201cbaked in\u201d during the first one to three monolayers at the substrate.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; To address this challenge, interface-engineered MBE is used to deliberately shape nucleation and early-stage growth. Metal-precursor layers, chalcogen pretreatments, and time-structured flux schemes are tuned to control nucleation density, phase stability, and grain coalescence, with the goal of producing phase-pure, continuous, low-roughness InSe films within BEOL thermal budgets. Structural and morphological characterization (Raman phase fraction analysis, AFM, TEM) is used to map how these interface-engineering strategies change phase composition, grain size, and interface disorder.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; The influence of substrate bonding and symmetry is further examined by applying these interface-engineered approaches across van der Waals, ionic, and covalent or amorphous platforms. Hall bar devices then relate interface and microstructural metrics directly to Hall mobility, carrier density, sheet resistance, and Hall sensitivity. By combining targeted interface control with quantitative electrical measurements, this thesis seeks to narrow the mobility gap between deposited and exfoliated InSe and to provide actionable guidelines for integrating InSe Hall sensors in future monolithic 3D electronics.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cbr\u003EInterface-Engineered MBE of InSe: Early-Stage Growth Control and Hall Sensor Performance\u003Cbr\u003E\u0026nbsp;\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":" Interface-Engineered MBE of InSe: Early-Stage Growth Control and Hall Sensor Performance"}],"uid":"27707","created_gmt":"2026-04-15 20:40:35","changed_gmt":"2026-04-15 20:41:12","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-29T11:00:00-04:00","event_time_end":"2026-04-29T13:00:00-04:00","event_time_end_last":"2026-04-29T13:00:00-04:00","gmt_time_start":"2026-04-29 15:00:00","gmt_time_end":"2026-04-29 17:00:00","gmt_time_end_last":"2026-04-29 17:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Pettit Microelectronics Building Room 102B and\/or Virtually via MS Teams or Zoom","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689545":{"#nid":"689545","#data":{"type":"event","title":"PhD Proposal by Jun Baek","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EJun Baek\u003C\/strong\u003E\u003Cbr\u003EAdvisor: Prof. Seung Soon Jang\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cem\u003Ewill propose a doctoral thesis entitled\u003C\/em\u003E,\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cstrong\u003EMulti-scale Computational Investigation of Interfacial Dynamics in Zinc-ion Batteries\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cem\u003EOn\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003ETuesday, April 28 at 12:30 p.m.\u003Cbr\u003EMRDC 4211\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAnd\u003C\/p\u003E\u003Cp\u003EVirtually via\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/teams.microsoft.com\/meet\/24173259120565?p=3RRFE13az92HpDpwO2\u0022\u003Ehttps:\/\/teams.microsoft.com\/meet\/24173259120565?p=3RRFE13az92HpDpwO2\u003C\/a\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E\u003Cbr\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Prof. Seung Soon Jang \u2013 School of Materials Science and Engineering (advisor)\u003Cbr\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Prof. Matthew McDowell \u2013 School of Materials Science and Engineering\u003Cbr\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Prof. Emma Hu \u2013 School of Materials Science and Engineering\u003C\/p\u003E\u003Cp\u003E\u2002\u2002\u2002\u2002\u2002\u2002Prof. Marta Hatzell - School of Mechanical Engineering\u003C\/p\u003E\u003Cp\u003E\u2002\u2002\u2002\u2002\u2002\u2002Prof. Julia Yang - School of Chemical and Biological Engineering\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EAqueous zinc-ion batteries (AZIBs) have emerged as a compelling alternative for next-generation energy storage systems due to their inherent safety, cost-effectiveness, and environmental sustainability. However, the practical deployment of AZIBs is severely hindered by fundamental challenges at the zinc anode interface, including uncontrolled dendritic growth, hydrogen evolution reactions (HER), and surface corrosion. This research proposes a multi-scale computational framework\u2014integrating density functional theory (DFT), molecular dynamics (MD), and machine-learned interatomic potentials (MLIP)\u2014to design high-performance zinc anode protective layers and optimize electrolyte systems.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EThe first part of this work investigates the atomic-scale mechanisms of a zinc-doped polypyrrole (Zn-doped PPy) conductive polymer as a functional protective layer. Using DFT calculations, we analyze the structural and electronic properties of PPy, demonstrating that Zn doping at nitrogen sites significantly enhances electrical conductivity by reducing the bandgap and creates potent nucleation sites for uniform Zn deposition. Furthermore, the synergistic effect of incorporating carbon nanotubes (CNTs) into the Zn-doped PPy matrix is explored, focusing on the enhanced mechanical adhesion and the formation of a stable, conductive network that effectively regulates the electric double layer.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EThe second phase of the research focuses on electrolyte engineering through MD simulations. We examine the solvation and desolvation dynamics of zinc ions in aqueous environments, specifically investigating the impact of organic additives such as ethylene glycol (EG). By analyzing the competitive coordination between water molecules and additives within the Zn2+ solvation shell, we evaluate the advantages and trade-offs of additive engineering in suppressing water-induced side reactions while maintaining high ionic conductivity.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EFinally, to bridge the gap between atomic-level interactions and mesoscopic electrochemical behavior, MLIPs are developed and deployed to simulate large-scale zinc deposition processes. This integrated approach allows for a comprehensive analysis of dendrite inhibition and the evolution of the electrode-electrolyte interface. The findings of this research will provide fundamental theoretical insights and design principles for developing dendrite-free, long-life aqueous zinc-ion batteries for large-scale energy storage applications.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cstrong\u003EMulti-scale Computational Investigation of Interfacial Dynamics in Zinc-ion Batteries\u003C\/strong\u003E\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Multi-scale Computational Investigation of Interfacial Dynamics in Zinc-ion Batteries"}],"uid":"27707","created_gmt":"2026-04-07 20:38:48","changed_gmt":"2026-04-15 20:39:15","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-28T12:30:00-04:00","event_time_end":"2026-04-28T14:00:00-04:00","event_time_end_last":"2026-04-28T14:00:00-04:00","gmt_time_start":"2026-04-28 16:30:00","gmt_time_end":"2026-04-28 18:00:00","gmt_time_end_last":"2026-04-28 18:00:00","rrule":null,"timezone":"America\/New_York"},"location":"MRDC 4211  And Virtually ","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689746":{"#nid":"689746","#data":{"type":"event","title":"MS Proposal by Rishie Seshadri","body":[{"value":"\u003Cp\u003EStudent Name: Rishie Seshadri\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAdvisor: Dr. Sarah Li\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EMilestone: MS Thesis Proposal\u003Cbr\u003E\u003Cbr\u003EDegree Program: Aerospace Engineering\u003Cbr\u003E\u003Cbr\u003ETitle: Distributed MPC for momentum counter-balanced and zero-impulse contact of a free-spinning satellite\u003Cbr\u003E\u003Cbr\u003EAbstract: In on-orbit robotics, a servicer satellite\u0027s ability to make contact with a free-spinning target satellite is essential to completing most on-orbit servicing (OOS) tasks. A tumbling target satellite with angular momentum components across multiple body axes may require multiple servicer satellites contacting in different planes to achieve full detumble. This manuscript develops a cooperative distributed model predictive control (DMPC) framework that coordinates the maneuvers between multiple servicer satellite agents to achieve zero-impulse contact with a free-spinning target satellite. Each servicer internally runs a hierarchical MPC controller that coordinates between two separately actuated modules of the servicer satellite: (1) a moment generation module and (2) a manipulation module. The distributed outer layer coordinates across servicers by enforcing consensus on the shared target state. We analyze the computational complexity of the large-scale centralized optimization problem and the smaller-scale distributed subproblems independently and then analyze how the number of agents scales with computational complexity. We evaluate the performance of the DMPC framework by simulating multi-servicer zero-impulse contact scenarios with a free-spinning target satellite via numerical Monte Carlo (MC) trials and comparing the simulation results with the centralized MPC framework. We validate the multi-servicer contact scenario using MuJoCo to verify that the coordinated detumble maneuver satisfies zero-impulse contact constraints across all servicer-target contact points.\u003Cbr\u003E\u003Cbr\u003EDate and time: 2026-04-23, 11:00 AM\u003Cbr\u003E\u003Cbr\u003ELocation: Montgomery Knight 317\u003Cbr\u003E\u003Cbr\u003ECommittee:\u003Cbr\u003EDr. Sarah Li (advisor), School of Aerospace Engineering\u003Cbr\u003EDr. Sarah Li, School of Aerospace Engineering\u003Cbr\u003EDr. Glen Chou, College of Computing and School of Aerospace Engineering\u003Cbr\u003EDr. Panagiotis Tsiotras, School of Aerospace Engineering\u003Cbr\u003EDr. Koki Ho, School of Aerospace Engineering\u003Cbr\u003ENA, NA\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EDistributed MPC for momentum counter-balanced and zero-impulse contact of a free-spinning satellite\u003Cbr\u003E\u003Cbr\u003E\u0026nbsp;\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Distributed MPC for momentum counter-balanced and zero-impulse contact of a free-spinning satellite"}],"uid":"27707","created_gmt":"2026-04-14 16:53:54","changed_gmt":"2026-04-14 16:54:31","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-23T11:00:00-04:00","event_time_end":"2026-04-23T12:00:00-04:00","event_time_end_last":"2026-04-23T12:00:00-04:00","gmt_time_start":"2026-04-23 15:00:00","gmt_time_end":"2026-04-23 16:00:00","gmt_time_end_last":"2026-04-23 16:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Montgomery Knight 317","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"166866","name":"MS Proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689745":{"#nid":"689745","#data":{"type":"event","title":"MS Proposal by Kevin Tang","body":[{"value":"\u003Cp\u003EStudent Name: Kevin Tang\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAdvisor: Dr. John Dec\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EMilestone: MS Thesis Proposal\u003Cbr\u003E\u003Cbr\u003EDegree Program: Aerospace Engineering\u003Cbr\u003E\u003Cbr\u003ETitle: Improving Atmospheric Entry Environment Prediction Using Machine-Learning Surrogate Models\u003Cbr\u003E\u003Cbr\u003EAbstract: The expansion of the space economy, driven by both private and public sectors, has increased the demand for atmospheric entry prediction. Accurate predictions in early mission analysis enable guidance and control design, establishment of mission requirements, landing footprint estimation, and space debris risk assessment. Current early mission analysis tools face a fundamental trade-off: simplified models are computationally fast but neglect key physics such as aerodynamics and ablation; high-fidelity multi-physics simulations are accurate but computationally expensive for uncertainty studies. This work proposes a mission-driven framework that bridges this gap by coupling a 3-DOF non-planar trajectory propagator with FUN3D computational fluid dynamics and FEAR ablation analysis to generate high-fidelity training data, which is then used to develop machine-learned surrogate models for aerodynamic coefficients and ablation response. Training data is concentrated near a nominal trajectory; its plausible dispersions with altitude, velocity, and vehicle geometry are used as inputs, and lift coefficient, drag coefficient, mass loss, and frontal area recession are used as outputs. The coupled Trajectory-CFD Solver has been developed and validated against the Stardust sample return capsule re-entry. The framework predicts the landing site within 41 miles of the actual location, reducing the prediction error by nearly half compared to a conventional low-fidelity trajectory propagator. Remaining work includes data generation improvements, surrogate model training and deployment, integration of the surrogates into the trajectory propagator, and Monte Carlo uncertainty quantification of landing footprints. The resulting framework will demonstrate how mission-specific surrogate modeling can preserve the fidelity of high-fidelity solvers at a fraction of the computational cost, advancing early-phase reentry mission analysis.\u003Cbr\u003E\u003Cbr\u003EDate and time: 2026-05-04, 11:00 AM\u003Cbr\u003E\u003Cbr\u003ELocation: ESM 108\u003Cbr\u003E\u003Cbr\u003ECommittee:\u003Cbr\u003EDr. John Dec (advisor), School of Aerospace Engineering\u003Cbr\u003EDr. Krish Ahuja, School of Aerospace Engineering\u003Cbr\u003EDr. Alvaro Romero-Calvo, School of Aerospace Engineering\u003Cbr\u003E,\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EImproving Atmospheric Entry Environment Prediction Using Machine-Learning Surrogate Models\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Improving Atmospheric Entry Environment Prediction Using Machine-Learning Surrogate Models"}],"uid":"27707","created_gmt":"2026-04-14 16:52:25","changed_gmt":"2026-04-14 16:52:25","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-04T11:00:00-04:00","event_time_end":"2026-05-04T12:00:00-04:00","event_time_end_last":"2026-05-04T12:00:00-04:00","gmt_time_start":"2026-05-04 15:00:00","gmt_time_end":"2026-05-04 16:00:00","gmt_time_end_last":"2026-05-04 16:00:00","rrule":null,"timezone":"America\/New_York"},"location":"ESM 108","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"166866","name":"MS Proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689741":{"#nid":"689741","#data":{"type":"event","title":"PhD Proposal by Reid Fly","body":[{"value":"\u003Cp\u003EStudent Name: Reid Fly\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAdvisor: Dr. Timothy Lieuwen\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EMilestone: PhD Thesis Proposal\u003Cbr\u003E\u003Cbr\u003EDegree Program: Aerospace Engineering\u003Cbr\u003E\u003Cbr\u003ETitle: Characterization and Modeling of Nonlinearly Interacting Thermoacoustic Modes in a High Pressure Gas Turbine Combustor\u003Cbr\u003E\u003Cbr\u003EAbstract: Thermoacoustic instability is a widely-recognized performance limitation found in a variety of combustion systems, and pushing operations towards higher power and reduced emissions has created conditions where these instabilities are more prevalent. Because of their importance in determining operability limits and structural loads, the effort to understand, model, and predict these pressure and heat release oscillations has garnered much attention. Decades of experimental analysis and modeling work has resulted in a very robust understanding of the linear behavior and stability of thermoacoustic modes. However, numerous experiments have noted the presence of limit cycles, intermittency, and chaos which cannot be understood through linear analyses. Further complicating these systems is the presence of multiple linearly-unstable modes whose coupling can cause yet more complex behaviors. This work proposes to contribute to the understanding of the nonlinear dynamics of coupled thermoacoustic modes through both experimental characterization and model building. A novel experimental facility will explore both the steady-state and transient behavior of a system with multiple interacting modes. By using a hydraulically-actuated variable-length exhaust, this test setup can precisely control acoustic mode shapes without altering operating conditions. A data campaign will characterize the dynamics of global and spatially-resolved heat release and acoustic pressure in this rig at high speed across gas-turbine relevant operating conditions. To extract more generalizable information about the underlying physics in the system, a reduced order model will be constructed to reproduce the observed behaviors. By connecting model terms to physical phenomena, the model will help uncover the mechanisms underpinning the system dynamics. In turn, this model and the associated learnings will aid in the modeling of thermoacoustics in pursuit of better design and more predictable operation of gas turbine combustors.\u003Cbr\u003E\u003Cbr\u003EDate and time: 2026-04-28, 9:30 am - 11:30 am\u003Cbr\u003E\u003Cbr\u003ELocation: Food Processing Technology Building - Auditorium 102\u003Cbr\u003E\u003Cbr\u003ECommittee:\u003Cbr\u003EDr. Timothy Lieuwen (advisor), School of Aerospace Engineering\u003Cbr\u003EDr. Timothy Lieuwen, School of Aerospace Engineering\u003Cbr\u003EDr. Benjamin Emerson, School of Aerospace Engineering\u003Cbr\u003EDr. Keegan Moore, School of Aerospace Engineering\u003Cbr\u003E,\u0026nbsp;\u003Cbr\u003E,\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003ECharacterization and Modeling of Nonlinearly Interacting Thermoacoustic Modes in a High Pressure Gas Turbine Combustor\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Characterization and Modeling of Nonlinearly Interacting Thermoacoustic Modes in a High Pressure Gas Turbine Combustor"}],"uid":"27707","created_gmt":"2026-04-14 16:37:39","changed_gmt":"2026-04-14 16:38:23","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-28T09:30:00-04:00","event_time_end":"2026-04-28T11:30:00-04:00","event_time_end_last":"2026-04-28T11:30:00-04:00","gmt_time_start":"2026-04-28 13:30:00","gmt_time_end":"2026-04-28 15:30:00","gmt_time_end_last":"2026-04-28 15:30:00","rrule":null,"timezone":"America\/New_York"},"location":" Food Processing Technology Building - Auditorium 102","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689740":{"#nid":"689740","#data":{"type":"event","title":"PhD Proposal by Yidong Hua","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EPhD Thesis Proposal\u0026nbsp;Announcement\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EStudent Name: Yidong Hua\u003C\/p\u003E\u003Cp\u003EThesis Title: Assessing the feasibility and impacts of full electrification on the pulp and paper industry\u003C\/p\u003E\u003Cp\u003EThesis Advisor: Marta Hatzell\u003C\/p\u003E\u003Cp\u003EThesis Co-Advisor: Micah Ziegler\u003C\/p\u003E\u003Cp\u003ECommittee Members: Sankar Nair (ChBE), Mattew Realff (ChBE), Chris Luettgen (ChBE), Joe Bozeman (Civil and Public Policy)\u003C\/p\u003E\u003Cp\u003EDate: 04\/28\/2026\u003C\/p\u003E\u003Cp\u003ETime: 3:00 - 5:00 PM\u003C\/p\u003E\u003Cp\u003ELocation: MRDC 3515\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EAssessing the feasibility and impacts of full electrification on the pulp and paper industry\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Assessing the feasibility and impacts of full electrification on the pulp and paper industry"}],"uid":"27707","created_gmt":"2026-04-14 16:36:12","changed_gmt":"2026-04-14 16:36:40","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-28T15:00:00-04:00","event_time_end":"2026-04-28T17:00:00-04:00","event_time_end_last":"2026-04-28T17:00:00-04:00","gmt_time_start":"2026-04-28 19:00:00","gmt_time_end":"2026-04-28 21:00:00","gmt_time_end_last":"2026-04-28 21:00:00","rrule":null,"timezone":"America\/New_York"},"location":"MRDC 3515","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689739":{"#nid":"689739","#data":{"type":"event","title":"PhD Proposal by Youngjin Kwon","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EYoungjin Kwon\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E(Advisor: Prof. Seung Soon Jang \u0026amp;\u0026nbsp;Prof. W. Hong Yeo)\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cem\u003Ewill propose a doctoral thesis entitled,\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDevelopment of\u0026nbsp;soft materials and\u0026nbsp;kirigami-based\u0026nbsp;mechanical decoupling for\u0026nbsp;motion-artifact\u0026nbsp;reduction in\u0026nbsp;wearable\u0026nbsp;electronics\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cem\u003EOn\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETuesday, April 28th at 10:00 am\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EMarcus Nanotechnology Research Center Room #2107\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAbstract\u003C\/p\u003E\u003Cp\u003EWearable bioelectronics enable continuous physiological monitoring but are fundamentally limited by motion artifacts arising from mechanical instability at the electrode\u2013skin interface. This issue is particularly severe in dynamic conditions and non-conformal wearable systems, where motion-induced noise overlaps with low-frequency bio-signals such as EMG and EOG, making conventional structural or computational approaches insufficient.\u003C\/p\u003E\u003Cp\u003EIn this work, we present a multi-scale strategy for motion artifact suppression that integrates structural design, geometrical optimization, and material-level damping. Kirigami-patterned structures are first introduced to achieve strain isolation by redistributing mechanical deformation away from the sensing interface, enabling stable EMG acquisition in freely moving ALS animal models. These structures are further optimized through systematic analysis of kirigami geometries, where hierarchical fractal patterns demonstrate improved strain isolation, reduced mechanical instability, and enhanced signal quality in dynamic applications.\u003C\/p\u003E\u003Cp\u003ETo address non-conformal wearable systems, we develop a material-based approach using polyborosiloxane (PBS), a viscoelastic polymer with dynamic boroxine networks. Molecular dynamics simulations and rheological experiments reveal that boroxine-rich networks provide frequency-stable energy dissipation, enabling effective suppression of motion artifacts in EOG systems.\u003C\/p\u003E\u003Cp\u003EThis work establishes a comprehensive framework that combines structural and material design strategies to enable robust bio-signal acquisition across diverse wearable platforms.\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E\u003C\/p\u003E\u003Cul\u003E\u003Cli\u003EProf. Antonio Facchetti\u0026nbsp;\u2013 School of Materials Science and Engineering\u003C\/li\u003E\u003Cli\u003EProf. Shucong Li\u0026nbsp;\u2013 School of Materials Science and Engineering\u003C\/li\u003E\u003Cli\u003EProf. Peter Hesketh \u2013 School of Mechanical Engineering\u003C\/li\u003E\u003C\/ul\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cstrong\u003EDevelopment of\u0026nbsp;soft materials and\u0026nbsp;kirigami-based\u0026nbsp;mechanical decoupling for\u0026nbsp;motion-artifact\u0026nbsp;reduction in\u0026nbsp;wearable\u0026nbsp;electronics\u003C\/strong\u003E\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Development of soft materials and kirigami-based mechanical decoupling for motion-artifact reduction in wearable electronics"}],"uid":"27707","created_gmt":"2026-04-14 16:34:19","changed_gmt":"2026-04-14 16:34:52","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-28T10:00:00-04:00","event_time_end":"2026-04-28T12:00:00-04:00","event_time_end_last":"2026-04-28T12:00:00-04:00","gmt_time_start":"2026-04-28 14:00:00","gmt_time_end":"2026-04-28 16:00:00","gmt_time_end_last":"2026-04-28 16:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Marcus Nanotechnology Research Center Room #2107 ","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689737":{"#nid":"689737","#data":{"type":"event","title":"PhD Proposal by Steven Kangisser","body":[{"value":"\u003Cp\u003EPhD Proposal Defense \u2013 Steven Kangisser\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003ECollege of Design \u2013 School of Building Construction \u2013 PhD Proposal Defense \u2013 Steven Kangisser\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETitle\u003C\/strong\u003E: Abstraction, Presence, and Transfer; A Framework for Visualization Design in Digital Demonstrators for Equipment-Intensive STEM Education\u003C\/p\u003E\u003Cp\u003EDissertation advisory committee:\u003C\/p\u003E\u003Cp\u003E\u00b7 Dr. Javier Irizarry, School of Building Construction, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u00b7 Dr. Eunhwa Yang, School of Building Construction, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u00b7 Senior Lecturer Tim Purdy, School of Industrial Design, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u00b7 Dr. Maribeth Gandy Coleman, Institute of People and Technology, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u00b7 Dr. Jamie Gorman, Human Systems Engineering, Arizona State University\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDate and Time:\u003C\/strong\u003E Wednesday, April 22, 2:30-4:00 PM EST\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ELocation:\u003C\/strong\u003E Cadell Building, Conference Room, Floor 2, 280 Ferst Dr., Georgia Institute of Technology, Atlanta, GA 30030\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EVirtual\u003C\/strong\u003E: \u003Ca href=\u0022https:\/\/teams.microsoft.com\/meet\/221081871285606?p=OCp7eQsZV1ozOHW5la\u0022 title=\u0022https:\/\/teams.microsoft.com\/meet\/221081871285606?p=OCp7eQsZV1ozOHW5la\u0022\u003Ehttps:\/\/teams.microsoft.com\/meet\/221081871285606?p=OCp7eQsZV1ozOHW5la\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract:\u0026nbsp;\u003C\/strong\u003EConstruction management programs face a persistent instructional challenge: students must develop competency with complex, expensive instruments that most programs cannot procure. Digital demonstrators have been proposed as viable alternatives, yet the field lacks empirical guidance on how to design the visualizations embedded within them. This dissertation addresses that gap using laser scanning instruction as its primary case. The dissertation is designed to contribute an empirical comparison of distinct visualization approaches in an instrument-level digital demonstrator using a behavioral transfer measure.\u003C\/p\u003E\u003Cp\u003EThe study is organized around three research questions corresponding to three identified gaps in literature. RQ1 examines how visualization design within a screen-based digital demonstrator affects the risk of visualization dependency. RQ2 investigates how the extent of demonstrator exposure influences physical scanner skill transfer, as measured by setup time. RQ3 asks what instructional outcomes a full-scale immersive VR demonstrator produces relative to the screen-based tool, and whether VR presence supports deeper schema formation or amplifies scaffold dependency.\u003C\/p\u003E\u003Cp\u003ETwo theoretical frameworks govern the study. Cognitive Load Theory (CLT) provides the primary lens, framing dependency risk as a consequence of over-scaffolding that bypasses the germane processing required for durable schema formation. The Cognitive Affective Model of Immersive Learning (CAMIL) governs the VR strand, positioning presence and agency as mediators of immersive learning benefits while acknowledging that immersive novelty may also increase extraneous load.\u003C\/p\u003E\u003Cp\u003EThe study employs mixed methods, pragmatist design across seven sequential phases. A screen-based demonstrator was developed incorporating two visualization conditions. The first being a lower-fidelity abstract circle grid that required active conceptual inference. The second is a higher-fidelity apple point cloud designed to make the resolution-quality relationship perceptually explicit. Physical scanner setup time served as the primary behavioral outcome, chosen for its independence from self-report and its sensitivity to dependency effects.\u003C\/p\u003E\u003Cp\u003ERQ2 is supported by the strongest evidence. Graduate teams with full demonstrator access completed physical scanner setup much more quickly as compared to a more limited-access cohort. This dose-response pattern was independently replicated in an undergraduate cohort at Georgia Tech, substantially strengthening the evidentiary basis. RQ1 is supported by preliminary evidence in which all five teams trained on the higher-fidelity visualization exhibited dependency when transitioning to the physical scanner. That finding requires replication before it can be treated as confirmed. RQ3 remains unresolved pending the next phase of this research which will introduce a VR visualization, testing emersion and presence as a level of visualization. This VR visualization will intentionally have a lower level of photorealism as compared to either of the 2-dimensional prototypes.\u003C\/p\u003E\u003Cp\u003ECompleted phases have yielded five confirmed or provisionally confirmed screen-based design criteria and three provisional VR criteria, constituting an empirically grounded framework for visualization design in digital demonstrators for instrument-intensive STEM education.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EAbstraction, Presence, and Transfer; A Framework for Visualization Design in Digital Demonstrators for Equipment-Intensive STEM Education\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Abstraction, Presence, and Transfer; A Framework for Visualization Design in Digital Demonstrators for Equipment-Intensive STEM Education"}],"uid":"27707","created_gmt":"2026-04-14 16:29:36","changed_gmt":"2026-04-14 16:30:16","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-22T14:30:00-04:00","event_time_end":"2026-04-22T16:00:04-04:00","event_time_end_last":"2026-04-22T16:00:04-04:00","gmt_time_start":"2026-04-22 18:30:00","gmt_time_end":"2026-04-22 20:00:04","gmt_time_end_last":"2026-04-22 20:00:04","rrule":null,"timezone":"America\/New_York"},"location":"Cadell Building, Conference Room, Floor 2, 280 Ferst Dr., Georgia Institute of Technology, Atlanta, GA 30030","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689730":{"#nid":"689730","#data":{"type":"event","title":"Ph.D. Proposal Oral Exam - Dong Suk Kang","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp; \u003C\/strong\u003E\u003Cem\u003ETime-Oriented Data Conversion Techniques for High-Speed and Energy-Efficient Analog-to-Digital Converters\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Shaolan Li, Advisor\u003C\/p\u003E\u003Cp\u003EDr. Gu, Chair\u003C\/p\u003E\u003Cp\u003EDr. Sathe\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe object of the proposed research is to develop a high-speed, energy-efficient analog-to-digital converter architecture based on hybrid voltage-time-domain signal processing. This work explores converting voltage signals into time-domain representations to achieve energy efficiency and scalability in advanced CMOS process.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Time-Oriented Data Conversion Techniques for High-Speed and Energy-Efficient Analog-to-Digital Converters"}],"uid":"28475","created_gmt":"2026-04-14 12:08:00","changed_gmt":"2026-04-14 12:09:33","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-27T14:00:00-04:00","event_time_end":"2026-04-27T16:00:00-04:00","event_time_end_last":"2026-04-27T16:00:00-04:00","gmt_time_start":"2026-04-27 18:00:00","gmt_time_end":"2026-04-27 20:00:00","gmt_time_end_last":"2026-04-27 20:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Room 1315, Klaus","extras":[],"related_links":[{"url":"https:\/\/teams.microsoft.com\/meet\/26987848955721?p=CoLUG4a48aAuDl5NLg","title":"Microsoft Teams Meeting link"}],"groups":[{"id":"434371","name":"ECE Ph.D. Proposal Oral Exams"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"},{"id":"1808","name":"graduate students"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689724":{"#nid":"689724","#data":{"type":"event","title":"PhD Defense by Mingyu Guan","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u003C\/strong\u003E\u0026nbsp; Scalable and Verifiable Foundations for Graph Learning\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDate:\u003C\/strong\u003E\u0026nbsp;Thursday, April 23, 2026\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETime:\u003C\/strong\u003E\u0026nbsp;10:00 AM \u2013 12:00 PM (Eastern Time)\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ELocation (Virtual):\u003C\/strong\u003E\u0026nbsp;\u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fgatech.zoom.us%2Fj%2F95898773125\u0026amp;data=05%7C02%7Ctm186%40gtvault.onmicrosoft.com%7Ccf7bf56fac71488a84e208de96bc230a%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639113932021421106%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=9MU1dn425ddHogduge8CZqeNdh5IzUolPXE%2FJIpEEWE%3D\u0026amp;reserved=0\u0022\u003Ehttps:\/\/gatech.zoom.us\/j\/95898773125\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EMingyu Guan\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EPh.D. Student\u003C\/p\u003E\u003Cp\u003ESchool of Computer\u0026nbsp;Science\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee Members\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Taesoo Kim (Advisor), School of Cybersecurity and Privacy, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Anand Iyer (Co-advisor), School of Computer Science, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Ada Gavrilovska, School of Computer Science, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Kexin Rong, School of Computer Science, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Jay Stokes, Microsoft Research\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EGraph neural networks (GNNs) are increasingly deployed in high-stakes domains such as fraud detection, traffic prediction, and social network analysis. However, real-world graphs are heterogeneous, dynamic, and privacy-critical, posing challenges in structural complexity, scalability, and verifiability across the model lifecycle. This thesis argues that graph learning problems contain inherent structural regularities that, when explicitly leveraged in model and system design, enable scalable and verifiable graph learning across critical stages of the model lifecycle. \u003Cem\u003EFirst\u003C\/em\u003E, we present \u003Cem\u003EHetTree\u003C\/em\u003E, a scalable heterogeneous GNN that exploits the natural tree hierarchy among metapaths by constructing a semantic tree representation and introducing a subtree attention mechanism to capture hierarchical relationships with low computation and memory overhead. \u003Cem\u003ESecond\u003C\/em\u003E, we present \u003Cem\u003EReD\u003C\/em\u003E, a system for scalable dynamic GNN training that leverages independence across snapshot sequences to enable sequence-parallel training without cross-machine communication, supported by sequence-first mini-batching and a two-level cache store. \u003Cem\u003EThird\u003C\/em\u003E, we present \u003Cem\u003ETAITEE\u003C\/em\u003E, a system that establishes verifiable training provenance by integrating training recording with Confidential Computing, recording comprehensive provenance via standard training APIs and generating cryptographically signed training certificates from Trusted Execution Environments with minimal overhead. Together, the three contributions span the critical graph learning lifecycle: what to compute, how to compute it efficiently, and whether the training was conducted as claimed \u2014\u0026nbsp;providing scalable and verifiable foundations for deploying graph learning models in practice.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EScalable and Verifiable Foundations for Graph Learning\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Scalable and Verifiable Foundations for Graph Learning"}],"uid":"27707","created_gmt":"2026-04-13 18:33:07","changed_gmt":"2026-04-13 18:33:37","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-23T10:00:00-04:00","event_time_end":"2026-04-23T12:00:00-04:00","event_time_end_last":"2026-04-23T12:00:00-04:00","gmt_time_start":"2026-04-23 14:00:00","gmt_time_end":"2026-04-23 16:00:00","gmt_time_end_last":"2026-04-23 16:00:00","rrule":null,"timezone":"America\/New_York"},"location":"VIRTUAL","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689718":{"#nid":"689718","#data":{"type":"event","title":"MS Defense by Tianyi Ye","body":[{"value":"\u003Cp\u003EIn partial fulfillment of the requirements for the degree of\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EMaster of Science in Biology\u003C\/p\u003E\u003Cp\u003Ein the\u003C\/p\u003E\u003Cp\u003ESchool of Biological Sciences\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETianyi Ye\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EWill defend his thesis\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u201cFunctional Roles of Rad52 and RPA in Inverse RNA Strand Exchange\u201d\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E22, April, 2026\u003C\/p\u003E\u003Cp\u003E10: 00 AM (EST) in EBB-1-5024.\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fgatech.zoom.us%2Fj%2F92351872480%3Fpwd%3D5Yq8gGcTDl5HY45siEZe6qIpwpUj8w.1\u0026amp;data=05%7C02%7Ctm186%40gtvault.onmicrosoft.com%7C0c938265c47741cfa51908de99617496%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639116841029702073%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=cWMBF3MSJkdBetWH3V9KFElL416LKPvZBSVOR7sdlGg%3D\u0026amp;reserved=0\u0022\u003Ehttps:\/\/gatech.zoom.us\/j\/92351872480?pwd=5Yq8gGcTDl5HY45siEZe6qIpwpUj8w.1\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EPasscode: \u003Cem\u003E[To be shared on the day of]\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EThesis Advisor:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Francesca Storici\u003C\/p\u003E\u003Cp\u003ESchool of Biological Sciences\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee Members:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Yury O. Chernoff\u003C\/p\u003E\u003Cp\u003ESchool of Biological Sciences\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u0026nbsp;\u003C\/strong\u003EDr. Alexander Mazin\u003C\/p\u003E\u003Cp\u003EDepartment of Biochemistry and Structural Biology\u003C\/p\u003E\u003Cp\u003EUT Health San Antonio\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract:\u0026nbsp;\u003C\/strong\u003ERNA-templated DNA repair has emerged as an alternative pathway for maintaining genome stability following DNA double-strand breaks (DSBs). Rad52 is a key factor in homologous recombination (HR), where it promotes strand annealing and coordinates repair intermediates. Previous in vitro studies have shown that interaction between Rad52 and replication protein A (RPA) influences inverse RNA strand exchange, a reaction in which RNA can guide DNA repair. These findings suggest a role for Rad52\u2013RPA interaction in RNA-templated DNA repair; however, whether this mechanism operates in vivo remains unclear.\u003C\/p\u003E\u003Cp\u003EIn this study, we developed a yeast-based system to investigate the role of Rad52\u2013RPA interaction in RNA-templated DNA repair. Using a chromosomal reporter assay in which restoration of gene function serves as a quantitative readout, we measured repair frequency as a proxy for inverse RNA strand exchange and evaluated Rad52 variants with disrupted RPA interaction. This approach enables direct assessment of the requirement for Rad52\u2013RPA interaction in RNA-dependent repair in vivo and provides new insight into RNA-mediated DNA repair mechanisms.\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cstrong\u003EFunctional Roles of Rad52 and RPA in Inverse RNA Strand Exchange\u003C\/strong\u003E\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Functional Roles of Rad52 and RPA in Inverse RNA Strand Exchange"}],"uid":"27707","created_gmt":"2026-04-13 18:19:55","changed_gmt":"2026-04-13 18:20:27","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-22T10:00:00-04:00","event_time_end":"2026-04-22T12:00:00-04:00","event_time_end_last":"2026-04-22T12:00:00-04:00","gmt_time_start":"2026-04-22 14:00:00","gmt_time_end":"2026-04-22 16:00:00","gmt_time_end_last":"2026-04-22 16:00:00","rrule":null,"timezone":"America\/New_York"},"location":"EBB-1-5024.","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"111531","name":"ms defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689716":{"#nid":"689716","#data":{"type":"event","title":"PhD Defense by Christopher Zhang","body":[{"value":"\u003Cp\u003EIn partial fulfillment of the requirements for the degree of\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDoctor of Philosophy in Quantitative Biosciences\u003C\/p\u003E\u003Cp\u003Ein the\u003C\/p\u003E\u003Cp\u003ESchool of Biological Sciences\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EChristopher Zhang\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EWill defend his thesis\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u201cTHE COSTS AND CONSTRAINTS OF BIOLOGICAL COMPLEXITY\u201d\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EApril 22nd,\u0026nbsp;2026\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E2:00 PM\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDALNEY 180\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/gatech.zoom.us\/j\/98792482360?pwd=DLP1U5pLjGt6ssC3iJWXqxL24ylm5f.1\u0022\u003Ehttps:\/\/gatech.zoom.us\/j\/98792482360?pwd=DLP1U5pLjGt6ssC3iJWXqxL24ylm5f.1\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EMeeting ID: 987 9248 2360\u003C\/p\u003E\u003Cp\u003EPasscode: Crisis\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EThesis Advisors:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Brian K. Hammer\u003C\/p\u003E\u003Cp\u003ESchool of Biological Sciences\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDr. William C. Ratcliff\u003C\/p\u003E\u003Cp\u003ESchool of Biological Sciences\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee Members:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Samuel P. Brown\u003C\/p\u003E\u003Cp\u003ESchool of Biological Sciences\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u0026nbsp;\u003C\/strong\u003EDr. Peter J. Yunker\u003C\/p\u003E\u003Cp\u003ESchool of Physics\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u0026nbsp;\u003C\/strong\u003EDr. Lauren Speare\u003C\/p\u003E\u003Cp\u003ESchool of Biological Sciences\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EThe costs and constraints of biological complexity are central to understanding how sophisticated traits and communities evolve and persist. In this dissertation defense, I will present two stories involving the Type Six Secretion System (T6SS), a complex bacterial apparatus that allows a bacterium to kill an adjacent competitor with remarkable efficiency. T6SSs have been shown to strongly impact microbial population dynamics, and there is an ongoing effort to understand exactly how this occurs.\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EFirst, I will describe my efforts to precisely measure the metabolic cost of utilizing the T6SS, showing that this cost is significantly lower than prior expectations. Then, I will present a combined effort to scan the entire bacterial phylogenetic tree to identify which and how many bacteria actually possess the T6SS, revising a widely cited estimate that has stood for nearly two decades. Together, these two studies refine our understanding of the T6SS as a whole and reshape how we think about the role of bacterial weaponry in shaping microbial dynamics over evolutionary timescales.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETHE COSTS AND CONSTRAINTS OF BIOLOGICAL COMPLEXITY\u003C\/strong\u003E\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"THE COSTS AND CONSTRAINTS OF BIOLOGICAL COMPLEXITY"}],"uid":"27707","created_gmt":"2026-04-13 18:13:00","changed_gmt":"2026-04-13 18:13:47","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-22T14:00:00-04:00","event_time_end":"2026-04-22T16:00:00-04:00","event_time_end_last":"2026-04-22T16:00:00-04:00","gmt_time_start":"2026-04-22 18:00:00","gmt_time_end":"2026-04-22 20:00:00","gmt_time_end_last":"2026-04-22 20:00:00","rrule":null,"timezone":"America\/New_York"},"location":"DALNEY 180","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689593":{"#nid":"689593","#data":{"type":"event","title":"PhD Defense by Mengqi Lou","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u003C\/strong\u003E\u0026nbsp;Two Aspects of Statistical Learning in High Dimensions: Iterative Algorithms and Average-case Reductions\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EMengqi Lou\u003C\/p\u003E\u003Cp\u003EACO PhD student\u003C\/p\u003E\u003Cp\u003ESchool of Industrial and Systems Engineering\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDate:\u003C\/strong\u003E\u0026nbsp;April 22, 2026\u003Cbr\u003E\u003Cstrong\u003ETime:\u003C\/strong\u003E\u0026nbsp;12:00 PM \u2013 2:00 PM (EST)\u003Cbr\u003E\u003Cstrong\u003ELocation:\u003C\/strong\u003E\u0026nbsp;Groseclose 226, Georgia Tech Campus\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EZoom:\u003C\/strong\u003E TBA\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EThesis\u003C\/strong\u003E: \u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fdrive.google.com%2Ffile%2Fd%2F1dUQuAif01CY-8o2ccTlNoDsVtQHR-Pqx%2Fview%3Fusp%3Dsharing\u0026amp;data=05%7C02%7Ctm186%40gtvault.onmicrosoft.com%7C40d4a955f41443b0ff9108de966d8863%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639113594359289082%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=MbRYdt3n696%2FRztNAwnBcxxZJMwI%2Fk7OFjT9SFp8nJ4%3D\u0026amp;reserved=0\u0022 title=\u0022Original URL: https:\/\/drive.google.com\/file\/d\/1dUQuAif01CY-8o2ccTlNoDsVtQHR-Pqx\/view?usp=sharing. Click or tap if you trust this link.\u0022\u003Ehttps:\/\/drive.google.com\/file\/d\/1dUQuAif01CY-8o2ccTlNoDsVtQHR-Pqx\/view?usp=sharing\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E:\u003C\/p\u003E\u003Cp\u003EDr. Ashwin Pananjady (Advisor), Schools of Industrial and Systems Engineering \u0026amp; Electrical and Computer Engineering, Georgia Tech\u003Cbr\u003EDr. Cheng Mao (Reader), School of Mathematics, Georgia Tech\u003Cbr\u003EDr. Will Perkins, School of Computer Science, Georgia Tech\u003Cbr\u003EDr. Justin Romberg, School of Electrical and Computer Engineering, Georgia Tech\u003Cbr\u003EDr. Guy Bresler, Department of Electrical Engineering and Computer Science , MIT\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EThe task of learning the underlying parameters of a statistical model from noisy samples is ubiquitous in modern signal processing and data science. Both computational and statistical challenges arise, especially in high-dimensional settings where the number of parameters is comparable to (or exceeds) the sample size. On the computational side, iterative algorithms are commonly used to fit complex models to random data, but their design and analysis are often guided by worst-case upper bounds that may not reflect practical performance. On the statistical side, classical information-theoretic limits on sample complexity or signal-to-noise ratio may be unattainable by any polynomial-time procedure, making these limits an impractical benchmark for modern high-dimensional problems.\u003Cbr\u003E\u003Cbr\u003EIn this thesis, we discuss two general frameworks that address these computational and statistical challenges. In the first part, I will present a toolkit that yields sharp, iterate-by-iterate characterizations of solution quality for complex iterative algorithms on several non-convex model-fitting problems with random data. In the second part, I will present a toolkit to derive average-case \u201creductions\u2019\u2019 between different statistical models, illustrating how such reductions reveal the computational limits of several structured high-dimensional problems.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003ETwo Aspects of Statistical Learning in High Dimensions: Iterative Algorithms and Average-case Reductions\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Two Aspects of Statistical Learning in High Dimensions: Iterative Algorithms and Average-case Reductions"}],"uid":"27707","created_gmt":"2026-04-09 19:39:06","changed_gmt":"2026-04-09 19:39:57","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-22T12:00:00-04:00","event_time_end":"2026-04-22T14:00:00-04:00","event_time_end_last":"2026-04-22T14:00:00-04:00","gmt_time_start":"2026-04-22 16:00:00","gmt_time_end":"2026-04-22 18:00:00","gmt_time_end_last":"2026-04-22 18:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Groseclose 226, Georgia Tech Campus","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689591":{"#nid":"689591","#data":{"type":"event","title":"PhD Defense by Jeong Soo (Jennifer) Lee","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EPhD Thesis\u0026nbsp;Defense\u0026nbsp;Announcement\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EStudent Name: Jeong Soo (Jennifer) Lee\u003C\/p\u003E\u003Cp\u003EThesis Title: Developing Multivalent Nanoparticle Vaccines and Antibody-based Therapeutics\u003C\/p\u003E\u003Cp\u003EThesis Advisor: Ravi Kane\u003C\/p\u003E\u003Cp\u003EThesis Co-Advisor: N\/A\u003C\/p\u003E\u003Cp\u003ECommittee Members: John Blazeck (ChBE), Mark Prausnitz (ChBE), Corey Wilson (ChBE), Ronghu Wu (School of Chemistry and Biochemistry)\u003C\/p\u003E\u003Cp\u003EDate: 04\/23\/2026\u003C\/p\u003E\u003Cp\u003ETime: 2 PM\u003C\/p\u003E\u003Cp\u003ELocation: EBB Children\u0027s Healthcare of Atlanta (CHOA) Seminar Room\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u0026nbsp;Developing Multivalent Nanoparticle Vaccines and Antibody-based Therapeutics\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":" Developing Multivalent Nanoparticle Vaccines and Antibody-based Therapeutics"}],"uid":"27707","created_gmt":"2026-04-09 17:49:31","changed_gmt":"2026-04-09 17:50:08","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-23T14:00:00-04:00","event_time_end":"2026-04-23T16:00:00-04:00","event_time_end_last":"2026-04-23T16:00:00-04:00","gmt_time_start":"2026-04-23 18:00:00","gmt_time_end":"2026-04-23 20:00:00","gmt_time_end_last":"2026-04-23 20:00:00","rrule":null,"timezone":"America\/New_York"},"location":"EBB Children\u0027s Healthcare of Atlanta (CHOA) Seminar Room","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689546":{"#nid":"689546","#data":{"type":"event","title":"PhD Proposal by Nitya Maruthuvakudi Venkatram","body":[{"value":"\u003Cp\u003EStudent Name: Nitya Maruthuvakudi Venkatram\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAdvisor: Dr. Dimitri Mavris\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EMilestone: PhD Thesis Proposal\u003Cbr\u003E\u003Cbr\u003EDegree Program: Aerospace Engineering\u003Cbr\u003E\u003Cbr\u003ETitle: Intent-Conditioned Trade-Space Exploration and Decision Support for Early-Stage Aerospace System Design\u003Cbr\u003E\u003Cbr\u003EAbstract: Early-stage aerospace design is the period during which fundamental architectural choices are made under the greatest uncertainty. The decisions made in this phase, covering performance budgets, structural concepts, and propulsion configurations, are rarely substantially revised thereafter, yet the processes that govern them provide no structured means of revisiting them coherently as requirements, assumptions, and knowledge continue to evolve. A review of the literature reveals that, despite mature processes for feasibility assessment and requirements management, early-stage aerospace design lacks a systematic means of exploring, justifying, and revisiting design decisions as the knowledge that governs them continues to evolve. To address these, this thesis proposes a methodology centered on the concept of \u0022system intent\u0022, the formally encoded combination of prioritized requirements, decision rationale, explicit assumptions, and tacit knowledge, and its systematic connection to multidisciplinary trade-space exploration and decision justification. The methodology is developed across three successive research areas and evaluated through a multi-domain, commercial-aircraft conceptual design demonstration that involves sequential changes to requirements and assumptions. The result is a pipeline that equips designers to formally encode the reasoning behind design decisions in a way that actively drives trade-study formulation, to respond to requirement and assumption changes through targeted updates rather than complete reconstruction, and to assess, at any point in the conceptual phase, which assumptions most threaten the stability of the current design selection and what would need to change for an alternative decision to be warranted, capabilities that current practice does not support. This work provides a structured foundation for design decision-making in complex aerospace programs where requirements, priorities, and knowledge are subject to continuous revision.\u003Cbr\u003E\u003Cbr\u003EDate and time: 2026-04-23, 8AM - 11AM\u003Cbr\u003E\u003Cbr\u003ELocation: Collaborative Design Environment (CoVE), Weber (SST II)\u003Cbr\u003E\u003Cbr\u003ECommittee:\u003Cbr\u003EDr. Dimitri Mavris (advisor), School of Aerospace Engineering\u003Cbr\u003EProf. Daniel Schrage, School of Aerospace Engineering\u003Cbr\u003EProf. Kai James (Pending), School of Aerospace Engineering\u003Cbr\u003EDr. Elena Garcia, School of Aerospace Engineering\u003Cbr\u003EDr. Jorge Camacho-Casero, Airbus\u003Cbr\u003E,\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EIntent-Conditioned Trade-Space Exploration and Decision Support for Early-Stage Aerospace System Design\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Intent-Conditioned Trade-Space Exploration and Decision Support for Early-Stage Aerospace System Design"}],"uid":"27707","created_gmt":"2026-04-07 20:41:02","changed_gmt":"2026-04-07 20:41:36","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-23T08:00:00-04:00","event_time_end":"2026-04-23T11:00:00-04:00","event_time_end_last":"2026-04-23T11:00:00-04:00","gmt_time_start":"2026-04-23 12:00:00","gmt_time_end":"2026-04-23 15:00:00","gmt_time_end_last":"2026-04-23 15:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Collaborative Design Environment (CoVE), Weber (SST II)","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689543":{"#nid":"689543","#data":{"type":"event","title":"PhD Defense by Rohit Pai","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u003C\/strong\u003E \u2018Gabor density bounds, woven systems and weighted oblique dual frames\u2019\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDate:\u003C\/strong\u003E\u0026nbsp; Monday, 27th April\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETime:\u003C\/strong\u003E 10.30am (EST)\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EZoom link:\u003C\/strong\u003E \u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fgatech.zoom.us%2Fj%2F5430145654%3Fpwd%3DE6D8k4UWjLaOURjO0RyzvsyMVFtyOx.1%26omn%3D95297390163\u0026amp;data=05%7C02%7Cthesis%40grad.gatech.edu%7Ce0f5a59434c245df90e408de94e48877%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639111906409488543%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=%2B9iusrKt7h0RBzZqWnJbo74fqNw3%2BNdHAvFJaeOG7s8%3D\u0026amp;reserved=0\u0022\u003Ehttps:\/\/gatech.zoom.us\/j\/5430145654?pwd=E6D8k4UWjLaOURjO0RyzvsyMVFtyOx.1\u0026amp;omn=95297390163\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee members\u003C\/strong\u003E:\u003C\/p\u003E\u003Cp\u003EDr. Christopher Heil (advisor)\u003C\/p\u003E\u003Cp\u003EDr. Michael Lacey\u003C\/p\u003E\u003Cp\u003EDr. Doron Lubinsky\u003C\/p\u003E\u003Cp\u003EDr. Michael Damron\u003C\/p\u003E\u003Cp\u003EDr. Kasso Okoudjou\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EThe first chapter focuses on density bounds. Beurling density bounds for basis-type systems have been studied for several decades, in the frameworks of exponential systems, Gabor systems, wavelets and more general reproducing kernel Hilbert spaces. In the work of Olevskii and Ulanovskii (2009), and Nitzan (2024), necessary density conditions were established for a new class of systems known as \u2018near-uniformly minimal\u2019 exponentials. Near-uniform minimality is a generalization of uniform minimality (which itself can be thought of as an analogue of linear independence). We deduce analogous necessary density conditions for near-uniformly minimal Gabor systems. Completeness is a dual property to minimality. Much in the same way, Nitzan (2024) introduced a dual notion of \u2018uniformly complete\u2019 exponentials. She also proved necessary density conditions in this case, using a duality argument, connecting it to near-uniform minimality. We establish analogous density bounds for uniformly complete Gabor systems. However, we use a different technique, since duality fails for Gabor systems over the real line. We extend many of our results relating to near-uniform minimality\/completeness, to select reproducing kernel Hilbert spaces.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EIn the next chapter, we study woven weighted exponential systems. A classical problem that has been extensively studied, is the basis structure problem of weighted exponentials. We consider analogous questions in the woven setting. As the name suggests, given two weights f and g, a weaving is a sequence where some of the vectors are taken from the first weighted exponential system, and the remaining are taken from the other. In our setup the standard ordering is imposed on the integers. Casazza, Cabrelli and Molter have studied woven systems in abstract Hilbert space. Our focus is specifically on woven weighted exponentials in L^2([0,a]). We obtain a complete characterization of wovenly complete systems, based on the properties of the two weights f and g. We also find a characterization for woven Bessel systems and orthonormal bases. In the case of woven frames\/Riesz bases, we obtain sufficient conditions, involving a suitable perturbation requirement on g relative to f.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EIn the final chapter, we study oblique dual frames and weighted frames in Hilbert space. Given two subspaces of a Hilbert space, W and V, such that W and the orthogonal complement of V form a direct sum, we can define oblique duals. Oblique duals generalize frame duals, in the sense, that for a frame {f_n} in a subspace W, an oblique dual is a frame {g_n} living in V , satisfying a decomposition condition for elements in W.\u0026nbsp; We define a more general notion known as \u2018weighted oblique dual frames\u2019, where the usual oblique dual decomposition becomes a weighted sum. When the weight sequence is {1}, one gets the usual oblique dual. Analogous to the known results for oblique duals, we obtain a complete characterization of weighted oblique duals. We also study their existence when the weight sequence may be degenerate. Another avenue we explore, includes proving weighted potential and coherence results for weighted oblique dual frames. Finally, we establish a connection between the existence of weighted oblique dual frames, and the weighted frame problem.\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EGabor density bounds, woven systems and weighted oblique dual frames\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Gabor density bounds, woven systems and weighted oblique dual frames"}],"uid":"27707","created_gmt":"2026-04-07 20:33:23","changed_gmt":"2026-04-07 20:34:01","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-27T10:30:00-04:00","event_time_end":"2026-04-27T12:30:00-04:00","event_time_end_last":"2026-04-27T12:30:00-04:00","gmt_time_start":"2026-04-27 14:30:00","gmt_time_end":"2026-04-27 16:30:00","gmt_time_end_last":"2026-04-27 16:30:00","rrule":null,"timezone":"America\/New_York"},"location":"ZOOM","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689478":{"#nid":"689478","#data":{"type":"event","title":"PhD Defense by Adam Coscia","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u003C\/strong\u003E\u0026nbsp;Detecting and Mitigating Pedagogical Risks in Large Language Models With Visual Analytics\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAdam Coscia\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EPh.D. Candidate in Human-Centered Computing\u0026nbsp;\u003C\/p\u003E\u003Cp\u003ESchool of Interactive Computing, College of Computing\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/adamcoscia.com\/\u0022\u003Ehttps:\/\/adamcoscia.com\/\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDate:\u003C\/strong\u003E\u0026nbsp;Monday, April 27, 2026\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETime:\u003C\/strong\u003E\u0026nbsp;10AM - 12PM Eastern time (U.S.)\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ELocation:\u0026nbsp;\u003C\/strong\u003E\u003Ca href=\u0022https:\/\/maps.app.goo.gl\/i8yusVJT3cryf5yC7\u0022 title=\u0022https:\/\/maps.app.goo.gl\/i8yusVJT3cryf5yC7\u0022\u003ETSRB\u003C\/a\u003E\u0026nbsp;room 334 (VIS Lab) \u2013 just walk in, show your BuzzCard to the concierge if asked\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EVirtual Meeting (hybrid):\u003C\/strong\u003E\u0026nbsp;\u003Ca href=\u0022https:\/\/gatech.zoom.us\/j\/3100254613?pwd=QWlKajNkOWlPbWkxR3N5MkZsTE9FZz09\u0022\u003Ehttps:\/\/gatech.zoom.us\/j\/3100254613?pwd=QWlKajNkOWlPbWkxR3N5MkZsTE9FZz09\u003C\/a\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Alex Endert - School of Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Duen Horng (Polo) Chau\u0026nbsp;- School of Computational Science \u0026amp; Engineering, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Cindy Xiong Bearfield - School of Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Yalong Yang\u0026nbsp;- School of Interactive Computing, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Scott Crossley - Department of Special Education, Vanderbilt University\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EThe advent of powerful new large language models (LLMs) has catalyzed a surge in LLM-powered educational technologies, enabling transformational advances that can empower learner agency, deliver personalized study materials, and promote active learning. Yet persistent pedagogical risks, from bias and hallucinations to unfair grading and misalignment with instructional goals, highlight a critical technology gap. Existing tools for selecting, fine-tuning, and evaluating LLMs are not designed to address the unique challenges of educational contexts, making it difficult for data scientists to detect and mitigate the potential pedagogical risks of prematurely deploying LLM-powered educational technology.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EThis thesis addresses this gap by introducing \u003Cstrong\u003Ehuman-in-the-loop visual analytics approaches\u003C\/strong\u003E\u0026nbsp;that integrate automated analysis with interactive visualizations, enabling data scientists to more effectively discover, understand, and address pedagogical risks throughout the LLM development lifecycle. We organize these contributions under four main thrusts:\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E(1) \u003Cstrong\u003EUncovering Harmful Biases and Stereotypes in LLM Selection\u003C\/strong\u003E: We introduce KnowledgeVIS, a visual analytics system that enables interactive exploration of fill-in-the-blank prompts to surface latent biases, stereotypes, and learned associations in foundation LLMs. By supporting comparative analysis across models, KnowledgeVIS empowers data scientists to make more informed model selection decisions prior to deployment, revealing risks that are often obscured by traditional benchmark-driven evaluation.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E(2) \u003Cstrong\u003EDiagnosing LLM Decision-Making During Fine-Tuning\u003C\/strong\u003E: We present iScore, a human-in-the-loop visual analytics system for interpreting how LLMs make scoring decisions in educational tasks such as automatic writing assessment. By linking internal model representations with input perturbations and output variations, iScore enables data scientists to diagnose unintended decision-making criteria, uncover model sensitivities, and iteratively refine fine-tuning strategies to better align with pedagogical objectives.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E(3) \u003Cstrong\u003EMeasuring and Visualizing LLM Trustworthiness in Evaluation\u003C\/strong\u003E: We propose a novel framework for operationalizing LLM trustworthiness as a set of interpretable, pedagogically grounded metrics, coupled with visualizations that make these risks traceable within model outputs. Through a co-designed evaluation workflow, we demonstrate how these metrics improve the consistency, transparency, and defensibility of expert decision-making, while surfacing complex trade-offs that cannot be captured by traditional performance measures alone.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E(4) \u003Cstrong\u003EBroadening Access to Visual Analytics in Education\u003C\/strong\u003E: We contribute TrustyVis, an open-source Python library that encapsulates the visual analytics techniques developed in this thesis into modular, reusable components. By lowering the barrier to integrating interactive visualizations into existing machine learning workflows, TrustyVis enables scalable and practical adoption of human-in-the-loop approaches for evaluating and improving LLM-powered educational systems.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EThrough a multi-year longitudinal co-design process with data scientists as well as several deployments and integrations into real-world educational settings, this thesis demonstrates how human-in-the-loop visual analytics can transform opaque LLM pipelines into transparent, iterative, and trustworthy development processes, ultimately supporting the responsible integration of LLMs into high-stakes learning environments. The outcomes of this thesis have been disseminated through multiple publications in top journals and conferences, advancing the state of the art in visual analytics, human-computer interaction, artificial intelligence, and educational technology by establishing new methods, systems, and design principles for making LLM behavior interpretable in pedagogical contexts.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EDetecting and Mitigating Pedagogical Risks in Large Language Models With Visual Analytics\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Detecting and Mitigating Pedagogical Risks in Large Language Models With Visual Analytics"}],"uid":"27707","created_gmt":"2026-04-06 17:51:48","changed_gmt":"2026-04-06 17:52:23","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-27T10:00:00-04:00","event_time_end":"2026-04-27T12:00:00-04:00","event_time_end_last":"2026-04-27T12:00:00-04:00","gmt_time_start":"2026-04-27 14:00:00","gmt_time_end":"2026-04-27 16:00:00","gmt_time_end_last":"2026-04-27 16:00:00","rrule":null,"timezone":"America\/New_York"},"location":"TSRB room 334 (VIS Lab) ","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689464":{"#nid":"689464","#data":{"type":"event","title":"Ph.D. Dissertation Defense - Janak Sharda","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle\u003C\/strong\u003E\u003Cem\u003E:\u0026nbsp; Electrical-thermal Co-design and System-level Analysis of Advanced Packaging Solutions for Hardware Accelerators and Sensor Technologies\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr.\u0026nbsp;Shimeng Yu, ECE, Chair, Advisor\u003C\/p\u003E\u003Cp\u003EDr.\u0026nbsp;Muhannad Bakir, ECE\u003C\/p\u003E\u003Cp\u003EDr.\u0026nbsp;Saibal Mukhopadhyay, ECE\u003C\/p\u003E\u003Cp\u003EDr.\u0026nbsp;Tushar Krishna, ECE\u003C\/p\u003E\u003Cp\u003EDr.\u0026nbsp;Yingyang (Celine) Lin, CoC\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EDeep learning solutions are becoming increasingly important for a lot of tasks. Tasks such as object detection from image rely on additional sensors and tasks such as natural language processing performed using large language models (LLMs) require efficient access to large memory capacity. As a result, they require close interconnection between different components for efficient data and signal movement. Heterogeneous integration has been proposed recently to address such concerns. This dissertation proposes designs for various problems ranging from sensing-based edge technologies to large server-based hardware accelerators for LLMs. The work proposes designs and analysis different packaging schemes depending upon the requirements. It proposes heterogeneous integration of different components including emerging memories to be able to design efficient hardware for such applications. Further, this study addresses thermal challenges associated with such heterogeneous integrated designs. Evaluations are performed to compare various designs and compared against the state-of-the-art. Further, the study proposes path for designing and evaluating future memories and interconnect technologies, providing design insights into various bottlenecks and an evaluation methodology for performing an electrical-thermal system-level co-design. Building upon the CIS and LLM accelerator designs, this dissertation develops a systematic system-technology co-optimization (STCO) methodology for evaluating advanced packaging configurations. The methodology is applied to compare 2.5D interposer, 3D HBM-on-logic, and selective layer transfer (SLT) integration for LLM accelerators across inference and training workloads. Detailed thermal and power delivery analysis is performed for 3D stacked HBM and compute accelerators, examining the trade-offs between memory-on-logic and logic-on-memory configurations. A hybrid design combining elements of both approaches is proposed and shown to achieve favorable thermal profiles while maintaining high memory bandwidth. Finally, a generalized software-hardware co-design framework, NS-AP (NeuroSim for Advanced Packaging), is developed that extends the analysis to arbitrary packaging configurations and workloads. The framework operates at three levels: component, chip, and package, and incorporates physical design, thermal simulation, and power delivery analysis.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Electrical-thermal Co-design and System-level Analysis of Advanced Packaging Solutions for Hardware Accelerators and Sensor Technologies "}],"uid":"28475","created_gmt":"2026-04-03 22:24:23","changed_gmt":"2026-04-03 22:25:41","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-23T13:00:00-04:00","event_time_end":"2026-04-23T15:00:00-04:00","event_time_end_last":"2026-04-23T15:00:00-04:00","gmt_time_start":"2026-04-23 17:00:00","gmt_time_end":"2026-04-23 19:00:00","gmt_time_end_last":"2026-04-23 19:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Online","extras":[],"related_links":[{"url":"https:\/\/teams.microsoft.com\/meet\/2544575074050?p=tkbsxZMr0iBpFzfVtc","title":"Microsoft Teams Meeting link"}],"groups":[{"id":"434381","name":"ECE Ph.D. Dissertation Defenses"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"},{"id":"1808","name":"graduate students"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689460":{"#nid":"689460","#data":{"type":"event","title":"Ph.D. Proposal Oral Exam - Hua Chen","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp; \u003C\/strong\u003E\u003Cem\u003EEfficient Power Delivery Using High-voltage DC-DC Converters for Data-Centers\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr.\u0026nbsp;Raychowdhury, Advisor\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDr. Li, Chair\u003C\/p\u003E\u003Cp\u003EDr. Sathe\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe objective of this research is to develop high-voltage hybrid DC-DC converters with compact designs that achieve high power density for data center applications. The growing demand for non-isolated, high-voltage step-down converters that are energy-efficient and capable of supplying heavy load currents motivates this work. We focus on converter shrinking techniques to improve power density. First, we introduce a merged cross-connected double step-down (DSD) converter that enables high-frequency power delivery. Next, we present a dual-path hybrid Dickson (DPHD) converter, which reduces inductor RMS current and minimizes the need for external bootstrap capacitors, paving the way for higher current density. Finally, we compare these designs with existing solutions and propose two promising directions for future investigation: a Fibonacci hybrid converter and a 6S quadruple step-down (QSD) hybrid converter.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Efficient Power Delivery Using High-voltage DC-DC Converters for Data-Centers"}],"uid":"28475","created_gmt":"2026-04-03 21:17:28","changed_gmt":"2026-04-03 21:18:56","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-24T10:00:00-04:00","event_time_end":"2026-04-24T12:00:00-04:00","event_time_end_last":"2026-04-24T12:00:00-04:00","gmt_time_start":"2026-04-24 14:00:00","gmt_time_end":"2026-04-24 16:00:00","gmt_time_end_last":"2026-04-24 16:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Online","extras":[],"related_links":[{"url":"https:\/\/teams.microsoft.com\/meet\/243338998834406?p=3DdNeusZPYzaO2gsBG","title":"Microsoft Teams Meeting link"}],"groups":[{"id":"434371","name":"ECE Ph.D. Proposal Oral Exams"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"},{"id":"1808","name":"graduate students"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}},"689434":{"#nid":"689434","#data":{"type":"event","title":"PhD Defense by Sara Milkes Espinosa","body":[{"value":"\u003Cp\u003EPhD Candidate: Sara Milkes Espinosa\u003Cbr\u003E\u003Cbr\u003ETitle: Relaboring Surplus: Social Reproduction and Everyday Resistance in Platformed Secondhand Economies\u003Cbr\u003E\u003Cbr\u003EDate: Tuesday, May 5th , 2026\u003Cbr\u003ETime: 10:00 AM \u2014 11:00 PM\u003Cbr\u003ELocation (in-person): TSRB 217A\u003Cbr\u003EParking directions: https:\/\/www.tsrb.gatech.edu\/sample-page\/directions-and-parking\/ \u0026nbsp; \u0026nbsp; \u0026nbsp;\u003C\/p\u003E\u003Cp\u003ECommittee: Dr. Carl DiSalvo (Chair), Dr. Richmond Wong, Dr. Noura Howell, Dr. Christopher Le Dantec \u0026amp; Dr. Sarah Fox\u003Cbr\u003E\u003Cbr\u003ESummary: In the context of the environmentally devastating and socially exploitative global fashion industry, online secondhand economies in the United States and other Global North contexts are often celebrated as paths toward sustainable consumption, ethical recirculation, and entrepreneurial opportunity. This dissertation argues that online resale is better understood as a form of platform-mediated labor embedded within imperial surplus economies and colonial racial capitalism. It focuses on the imperial middle, between exploited labor at the point of production and the colonial geographies of discard, where resellers source, classify, aestheticize, and recirculate surplus goods through platforms such as Poshmark, eBay, and Depop.\u003Cbr\u003E\u003Cbr\u003EDrawing on five years of mixed-methods ethnographic engagement, participatory arts-based research, and autohistoria-teor\u00eda, I examine how these conditions are lived and negotiated. I develop the concept of platformic torque to theorize how aesthetic, temporal, and regulatory pressures are organized through platform infrastructures and experienced differently across intersectional positions. I then analyze how resellers respond through automation, metric manipulation, rule negotiation, and fragile forms of collectivity.\u003Cbr\u003E\u003Cbr\u003EBridging critical HCI, feminist political economy, decolonial thought, and discard studies, this dissertation reframes online resale as a diagnostic site for understanding how platforms, surplus, and intersectionally differentiated labor are entangled within imperial formations of labor, consumption, and discard. Rather than romanticizing resistance, it shows how survival, complicity, and contestation coexist in secondhand markets, and how collective futures remain both imaginable and structurally fragile under colonial racial capitalism.\u003Cbr\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003ERelaboring Surplus: Social Reproduction and Everyday Resistance in Platformed Secondhand Economies\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Relaboring Surplus: Social Reproduction and Everyday Resistance in Platformed Secondhand Economies"}],"uid":"27707","created_gmt":"2026-04-03 13:30:35","changed_gmt":"2026-04-03 13:31:41","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-05-05T10:00:00-04:00","event_time_end":"2026-05-05T11:00:00-04:00","event_time_end_last":"2026-05-05T11:00:00-04:00","gmt_time_start":"2026-05-05 14:00:00","gmt_time_end":"2026-05-05 15:00:00","gmt_time_end_last":"2026-05-05 15:00:00","rrule":null,"timezone":"America\/New_York"},"location":"TSRB 217A","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}