{"654317":{"#nid":"654317","#data":{"type":"event","title":"The Spring 2022 OSE Seminar Series w. Invited Speaker Melissa Ruszczyk","body":[{"value":"\u003Cp\u003EDual Phase-Shifted Ipsilateral Metachrony in Americamysis bahia\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EABTRACT: Metachronal propulsion occurs in multi-appendaged organisms, when appendages beat one after another in an adlocomotory sequence. Previously documented metachrony in euphausiids consists of one, 5-paddle metachronal stroke, where pleopod pairs on the same abdominal segment beat in tandem with each other, propelling the animal forward. In contrast, the mysid shrimp Americamysis bahia\u0026rsquo;s pleopods on the same abdominal segment beat independently of each other, resulting in two, 5-paddle metachronal cycles running ipsilateral along the length of the body, 180\u0026deg; out of phase. The morphology, kinematics, and nondimensional measurements of efficiency are primarily compared to one-cycle euphausiids to determine how the two-cycle approach alters the design and kinematics of metachrony. Pleopodal swimming in A. bahia results in only fast-forward swimming, with speeds greater than 2BL\/s (body lengths per second), and can reach speeds up to 12BL\/s, through a combination of increasing stroke amplitude, beat frequency, and changing their inter-limb phase lag. Trends with Strouhal number and advance ratio suggest that the kinematics of metachrony in A. bahia are favored to greater normalized swimming speeds than euphausiids. \u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003ESEMINAR SPEAKER\u003C\/p\u003E\r\n\r\n\u003Cp\u003EMelissa Ruszczyk\u003Cbr \/\u003E\r\nOSE Ph.D. Candidate\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe seminar is offered both \u003Ca href=\u0022https:\/\/us02web.zoom.us\/meeting\/register\/tZYkcuGurj4tGNajlotRjfOsr2ddL1WhUFRv\u0022\u003Evirtually\u003C\/a\u003E and in person on the 3rd floor of ES\u0026amp;T in the new Ocean Room. However, the first two weeks are going be entirely virtual.\u0026nbsp;\u003C\/p\u003E\r\n","format":"limited_html"}],"field_summary_sentence":[{"value":"The Spring 2022 OSE Seminar Series -- Melissa Ruszczyk, OSE Ph.D. Candidate"}],"uid":"35279","created_gmt":"2022-01-11 20:48:12","changed_gmt":"2022-01-13 16:58:14","author":"belnaggar3","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2022-01-14T15:30:00-05:00","event_time_end":"2022-01-14T16:30:00-05:00","event_time_end_last":"2022-01-14T16:30:00-05:00","gmt_time_start":"2022-01-14 20:30:00","gmt_time_end":"2022-01-14 21:30:00","gmt_time_end_last":"2022-01-14 21:30:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"hg_media":{"654316":{"id":"654316","type":"image","title":"SP2022 Image","body":null,"created":"1641933858","gmt_created":"2022-01-11 20:44:18","changed":"1641933858","gmt_changed":"2022-01-11 20:44:18","alt":"","file":{"fid":"248161","name":"89b11ec1dae649263a7f865ee89bf47b5e322a47.png","image_path":"\/sites\/default\/files\/images\/89b11ec1dae649263a7f865ee89bf47b5e322a47.png","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/images\/89b11ec1dae649263a7f865ee89bf47b5e322a47.png","mime":"image\/png","size":888859,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/images\/89b11ec1dae649263a7f865ee89bf47b5e322a47.png?itok=zXEnmKUK"}}},"media_ids":["654316"],"groups":[{"id":"565971","name":"Ocean Science and Engineering (OSE)"}],"categories":[],"keywords":[{"id":"176779","name":"OSE Seminar"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"},{"id":"177814","name":"Postdoc"},{"id":"174045","name":"Graduate students"},{"id":"78751","name":"Undergraduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003Ehttps:\/\/ocean.gatech.edu\/home\u003C\/p\u003E\r\n","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}