{ "145352-21897161": { "datetime_modified":"20260217T204301", "datetime_start":"20260317T160000", "datetime_end":"20260317T170000", "has_end_time":1, "date_start":"2026-03-17", "date_end":"2026-03-17", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"Colloquium: Accelerating Earth system simulation", "occurrence_title":"", "combined_title":"Colloquium: Accelerating Earth system simulation: Peter Bosler, Sandia National Laboratories", "event_subtitle":"Peter Bosler, Sandia National Laboratories", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"Providing high-quality \u201cactionable information\u201d for strategic risk analysis is amongst the primary goals of the U.S. Dept. of Energy Exascale Earth System Model (E3SM). The simulation speed required to generate high-quality localized predictions at seasonal-to-decadal time scales is very high. In this talk we highlight some algorithmic design decisions that combine new research with classical numerical methods to enable E3SM\u2019s ultra-high resolution configuration to achieve exascale performance and win the inaugural Gordon Bell Prize for Climate in 2023. \n\nOur design strategies tailor mathematical methods to both the unique features of the application space and to the heterogeneous computing architectures of exascale supercomputers. Ultimately, these efforts doubled the speed of the most computationally demanding component of E3SM, its atmosphere model. We will also discuss new and ongoing research associated with opportunities afforded by these performance gains.", "occurrence_notes":null, "guid":"145352-21897161@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/145352", "building_id":"", "building_name":"", "campus_maps_id":"", "room":"1360", "location_name":null, "has_livestream":0, "cost":"", "tags":["Applied Mathematics","Mathematics"], "website":"https:\/\/www.sandia.gov\/ccr\/staff\/peter-andrew-bosler\/", "sponsors":[ { "group_name":"Colloquium Series - Department of Mathematics", "group_id":"4884", "website":"" }, { "group_name":"Department of Mathematics", "group_id":"3791", "website":"" }, { "group_name":"MCAIM - Department of Mathematics", "group_id":"4897", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/02\/event_145352_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/02\/event_145352_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/02\/event_145352_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/02\/event_145352_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/02\/event_145352_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2026\/02\/event_145352_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2026\/02\/event_145352_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2026\/02\/event_145352_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2026\/02\/event_145352_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2026\/02\/event_145352_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/02\/event_145352_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/02\/event_145352_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/02\/event_145352_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2026\/02\/event_145352_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/02\/event_145352_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/02\/event_145352_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21897161 } , "138412-21882917": { "datetime_modified":"20260212T143243", "datetime_start":"20260317T160000", "datetime_end":"20260317T171500", "has_end_time":1, "date_start":"2026-03-17", "date_end":"2026-03-17", "time_start":"16:00:00", "time_end":"17:15:00", "time_zone":"America\/Detroit", "event_title":"Design of 3d Metal Complexes for Cooperative Catalysis & Mechanistic Insight", "occurrence_title":"", "combined_title":"Design of 3d Metal Complexes for Cooperative Catalysis & Mechanistic Insight: Rose Kennedy (Rochester University)", "event_subtitle":"Rose Kennedy (Rochester University)", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Over the past 4 decades, transition-metal-catalyzed cross-coupling and olefin functionalization reactions have transformed the discovery and manufacture of pharmaceuticals, agrochemicals, pigments, and materials. However, responsible sourcing of preferred precious metal catalysts (like Pd, Rh, or Ir) has become increasingly challenging with ongoing geopolitical conflict and inconsistent labor practices. This limited availability thus hinders the sustainability and economic viability of these processes. Despite the clear impetus to pursue reaction development with more terrestrially abundant elements, first-row (3d) transition metals are not typically suitable as direct substitutes for their precious metal congeners. Nonetheless, there is growing interest in exploring the unique reactivity of earth-abundant and relatively inexpensive 3d metals to generate novel products and\/or take advantage of substrate combinations that remain difficult to access with established methods. However, compared with the detailed understanding of the fundamental reactivity of precious metals informed by decades of mechanistic elucidation, the identity, speciation, and controlling features of 3d metal catalysts remain poorly defined in many cases, thus limiting their development. Here, I will describe my team\u2019s progress using well-defined nickel and copper precatalysts to tease apart the structural features and mechanistic steps necessary for achieving high activity and chemoselectivity in cross coupling and olefin functionalization reactions. Our work relies on a synergy between mechanistic study of and precatalyst design for homogeneous catalysis, taking advantage of cooperative design principles informed by heterogeneous and biological catalysis. These insights are translated into the design of novel catalyst structures and synthetic transformations with enhanced efficiency.", "occurrence_notes":null, "guid":"138412-21882917@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/138412", "building_id":"1000158", "building_name":"Chemistry Dow Lab", "campus_maps_id":"34", "room":"1640", "location_name":"Chemistry Dow Lab", "has_livestream":0, "cost":"", "tags":["Chemistry","Organic Chemistry","Science"], "website":"https:\/\/www.sas.rochester.edu\/chm\/people\/faculty\/kennedy-c.rose\/index.html", "sponsors":[ { "group_name":"Department of Chemistry", "group_id":"3761", "website":"https:\/\/lsa.umich.edu\/chem" }, { "group_name":"Organic Chemistry", "group_id":"4389", "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":21882917 } }