{ "135813-21877296": { "datetime_modified":"20251008T160939", "datetime_start":"20251031T150000", "datetime_end":"20251031T160000", "has_end_time":1, "date_start":"2025-10-31", "date_end":"2025-10-31", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"AIM Seminar: Multiscale Modeling, Simulation, and Analysis of Microstructure Evolution in Polycrystalline Materials", "occurrence_title":"", "combined_title":"AIM Seminar: Multiscale Modeling, Simulation, and Analysis of Microstructure Evolution in Polycrystalline Materials: Yekaterina Epshteyn (University of Utah)", "event_subtitle":"Yekaterina Epshteyn (University of Utah)", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"Abstract: Many technologically useful materials are polycrystals composed of small monocrystalline grains that are separated by grain boundaries of crystallites with different lattice orientations. The changes in the grain and grain boundary structure of polycrystals highly influence the material\u2019s properties, including, but not limited to, electrical, mechanical, optical, and thermal. Thus, one of the central problems in materials science is to design technologies capable of delivering an arrangement of grains that produces a desired set of material properties.\r\n\r\nA method by which the grain structure can be engineered in polycrystalline materials is through grain growth (coarsening) of a starting structure. The evolution of the grain\/grain boundary structure and associated grain growth is a very complex, multiscale, and multiphysics process. It involves, for example, the dynamics of grain boundaries, triple junctions in 2D (triple curves\/lines and quadruple points in 3D), and the dynamics of lattice misorientations. Therefore, grain growth can be regarded as the anisotropic evolution of a large cellular network and can be described by a set of deterministic local evolution laws for the growth of individual grains combined with stochastic models for the interaction between them. In this talk, we will present recent perspectives on mathematical modeling, numerical simulation, and mathematical analysis of the evolution of the grain boundary network in polycrystalline microstructures. Relevant recent experiments, along with current and future research, will be discussed as well.\r\n\r\nPart of this talk is based on the recent collaboration\/work with Katayun Barmak, Batuhan Bayir, William M Feldman, David Kinderlehrer, Chang (Kamala) Liu, Chun Liu, Masashi Mizuno, Thuong Nguyen, Matthew Patrick, and Jeffrey Rickman, and is partially supported by the DMREF program under DMS-2118172 Award and the Simons Foundation Fellowship Award SFI-MPS-SFM-00010667.\r\n\r\nContact: Selim Esedoglu", "occurrence_notes":null, "guid":"135813-21877296@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/135813", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"1084", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics"], "website":"", "sponsors":[ { "group_name":"Applied Interdisciplinary Mathematics (AIM) Seminar - Department of Mathematics", "group_id":"4882", "website":"" }, { "group_name":"Department of Mathematics", "group_id":"3791", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21877296 } , "140102-21886678": { "datetime_modified":"20251001T135745", "datetime_start":"20251031T150000", "datetime_end":"20251031T180000", "has_end_time":1, "date_start":"2025-10-31", "date_end":"2025-10-31", "time_start":"15:00:00", "time_end":"18:00:00", "time_zone":"America\/Detroit", "event_title":"ASC Fall 2025 UMAPS Research Colloquium Series", "occurrence_title":"", "combined_title":"ASC Fall 2025 UMAPS Research Colloquium Series: Molebogeng Bodiba, Charles Gafita, Alecia Ndlovu, Christian Kwisanga, Folakemi Ogungbe", "event_subtitle":"Molebogeng Bodiba, Charles Gafita, Alecia Ndlovu, Christian Kwisanga, Folakemi Ogungbe", "event_type":"Conference \/ Symposium", "event_type_id":"5", "description":"This series features the Fall 2025 UMAPS fellows and their scholarly work. The talks prepared and presented by each visiting scholar are designed to promote dialogue on topics and to share their research with the larger U-M community.\r\n \r\nRegister at https:\/\/forms.gle\/gvtXu6oL2KAkmmi56\r\n\r\nOctober 29 (Wednesday) \u2013 Health and Nutrition in Africa\r\nMolebogeng Bodiba, \u201cThe Ameliorative Benefits Of Tulbaghia Violacea On The Hippocampi Of Streptozotocin Diabetes Induced Sprague Dawley Rats\u201d\r\nCharles Gafita, \u201cUnderstanding the Level and Impact of High Sugar Consumption in Beverages in Rwanda\u201d\r\n\r\nOctober 31 (Friday) \u2013 Reel History, Resource Management, and Political Accountability in Africa\r\nAlecia Ndlovu - \u201cPolitical Accountability and Development in Sub-Saharan Africa\u2019s Resource Economies\u201d\r\nChristian Kwisanga - \u201cAnalysis of prevalent artisanal small-scale mining of tantalum, tin, tungsten (3T), niobium, and lithium in Rwanda\u201d\r\nFolakemi Ogungbe - \u201cReel History: Exploring Nigerian Historical Films as Windows into the Nation's Past\u201d\r\n\r\n\r\nAccommodation: If there is anything we can do to make this event accessible to you, please contact us. Please be aware that advance notice is necessary as some accommodations may require more time for the university to arrange.\r\n Email: -- teyei@umich.edu", "occurrence_notes":null, "guid":"140102-21886678@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/140102", "building_id":"1000165", "building_name":"Weiser Hall", "campus_maps_id":"47", "room":"1010", "location_name":"Weiser Hall", "has_livestream":0, "cost":"", "tags":["Africa","Area Studies","African Studies Center","African Studies"], "website":"https:\/\/forms.gle\/gvtXu6oL2KAkmmi56", "sponsors":[ { "group_name":"African Studies Center", "group_id":"3187", "website":"http:\/\/www.ii.umich.edu\/asc\/" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2025\/09\/event_140102_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2025\/09\/event_140102_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2025\/09\/event_140102_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2025\/09\/event_140102_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2025\/09\/event_140102_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2025\/09\/event_140102_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2025\/09\/event_140102_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2025\/09\/event_140102_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2025\/09\/event_140102_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2025\/09\/event_140102_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2025\/09\/event_140102_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2025\/09\/event_140102_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2025\/09\/event_140102_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2025\/09\/event_140102_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2025\/09\/event_140102_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2025\/09\/event_140102_original-1.jpg" }, "occurrence_count":2, "first_occurrence":21886622 } , "138702-21883638": { "datetime_modified":"20251029T140420", "datetime_start":"20251031T150000", "datetime_end":"20251031T160000", "has_end_time":1, "date_start":"2025-10-31", "date_end":"2025-10-31", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Determinants of tree distance matrices and submatrices (Combinatorics seminar)", "occurrence_title":"", "combined_title":"Determinants of tree distance matrices and submatrices (Combinatorics seminar): Harry Richman -- National Taiwan University", "event_subtitle":"Harry Richman -- National Taiwan University", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Suppose D is the distance matrix of a tree. Graham and Pollack showed that the determinant of D satisfies an identity that depends only on surprisingly little information of the given tree. I will explain how this identity generalizes to a combinatorial expression for the determinant of any principal submatrix of D. This new identity involves counts of spanning forests and is proved by use of potential-theoretic concepts on graphs. This generalizes further to a determinant identity for effective resistance matrices on an arbitrary finite graph. I will mention a connection to the ultra-log-concave version of Mason's conjecture, and a strengthening for the graphic case.\r\n\r\nThis is joint work with Farbod Shokrieh and Chenxi Wu. https:\/\/arxiv.org\/abs\/2411.11488", "occurrence_notes":null, "guid":"138702-21883638@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/138702", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"4096", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics"], "website":"", "sponsors":[ { "group_name":"Combinatorics Seminar - Department of Mathematics", "group_id":"4885", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21883638 } , "137252-21879996": { "datetime_modified":"20251030T100053", "datetime_start":"20251031T150000", "datetime_end":"20251031T160000", "has_end_time":1, "date_start":"2025-10-31", "date_end":"2025-10-31", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"HET Seminar | Huge Operators in AdS\/CFT and Matrix Models", "occurrence_title":"", "combined_title":"HET Seminar | Huge Operators in AdS\/CFT and Matrix Models: Pedro Viera (Perimeter)", "event_subtitle":"Pedro Viera (Perimeter)", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"Tbd", "occurrence_notes":null, "guid":"137252-21879996@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/137252", "building_id":"1000167", "building_name":"West Hall", "campus_maps_id":"163", "room":"340", "location_name":"West Hall", "has_livestream":0, "cost":"", "tags":["Lecture","High Energy Theory Seminar","Physics","Science"], "website":"", "sponsors":[ { "group_name":"Leinweber Institute for Theoretical Physics", "group_id":"4286", "website":"" }, { "group_name":"Department of Physics", "group_id":"1965", "website":"" }, { "group_name":"Leinweber Institute for Theoretical Physics Seminars", "group_id":"4311", "website":"" }, { "group_name":"Leinweber Institute for Theoretical Physics High Energy Theory Seminars", "group_id":"4313", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21879996 } , "141168-21888277": { "datetime_modified":"20251027T003921", "datetime_start":"20251031T150000", "datetime_end":"20251031T160000", "has_end_time":1, "date_start":"2025-10-31", "date_end":"2025-10-31", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Singular Cohomology of Singular Hypersurfaces", "occurrence_title":"", "combined_title":"Singular Cohomology of Singular Hypersurfaces: Hyunsuk Kim", "event_subtitle":"Hyunsuk Kim", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"TBD", "occurrence_notes":null, "guid":"141168-21888277@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/141168", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"2866", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics"], "website":"", "sponsors":[ { "group_name":"Student Algebraic Geometry Seminar - Department of Mathematics", "group_id":"4904", "website":"" }, { "group_name":"Department of Mathematics", "group_id":"3791", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21888277 } , "141325-21888633": { "datetime_modified":"20260518T092015", "datetime_start":"20251031T150000", "datetime_end":"20251031T154500", "has_end_time":1, "date_start":"2025-10-31", "date_end":"2025-10-31", "time_start":"15:00:00", "time_end":"15:45:00", "time_zone":"America\/Detroit", "event_title":"Sky Tonight", "occurrence_title":"", "combined_title":"Sky Tonight", "event_subtitle":"", "event_type":"Exhibition", "event_type_id":"7", "description":"A live presentation on what to find in the sky tonight and for the coming few weeks. This presentation includes how to find the cardinal directions with the North Star, current and upcoming constellations, visible planets, a few deep sky objects depending on the season, and other interesting astronomical visualizations. If you want to be able to look up from your own backyard and know what to look for, this is the show for you.", "occurrence_notes":null, "guid":"141325-21888633@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/141325", "building_id":"1005169", "building_name":"Museum of Natural History", "campus_maps_id":"646", "room":"Planetarium & Dome Theater", "location_name":"Museum of Natural History", "has_livestream":0, "cost":"Tickets are $8 and are available in the museum store on the day of the show.", "tags":["Undergraduate","Space","Science","Prospective Undergraduate Students","Planetarium","Natural Sciences","natural history museum","museums","Museum","Film","Family","Children","Astronomy"], "website":"https:\/\/lsa.umich.edu\/ummnh\/visitors\/planetarium-dome-theater.html#view=week", "sponsors":[ { "group_name":"Planetarium & Dome Theater at the Museum of Natural History", "group_id":"3825", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2025\/10\/event_141325_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2025\/10\/event_141325_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2025\/10\/event_141325_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2025\/10\/event_141325_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2025\/10\/event_141325_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2025\/10\/event_141325_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2025\/10\/event_141325_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2025\/10\/event_141325_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2025\/10\/event_141325_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2025\/10\/event_141325_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2025\/10\/event_141325_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2025\/10\/event_141325_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2025\/10\/event_141325_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2025\/10\/event_141325_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2025\/10\/event_141325_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2025\/10\/event_141325_original-1.jpg" }, "occurrence_count":180, "first_occurrence":21888620 } }