{ "152305-21913506": { "datetime_modified":"20260923T134048", "datetime_start":"20261009T120000", "datetime_end":"20261009T130000", "has_end_time":1, "date_start":"2026-10-09", "date_end":"2026-10-09", "time_start":"12:00:00", "time_end":"13:00:00", "time_zone":"America\/Detroit", "event_title":"IOE 101: Chandler Kolling \"Building a Career in Industry with Your IOE Toolkit\"", "occurrence_title":"", "combined_title":"IOE 101: Chandler Kolling \"Building a Career in Industry with Your IOE Toolkit\": Grainger", "event_subtitle":"Grainger", "event_type":"Class \/ Instruction", "event_type_id":"8", "description":"In this talk, Chandler will provide an inside look at how data, analytics, technology, and other IOE focus areas are used to drive decisions in large-scale supply chain operations at Grainger and discuss the role the company plays in supporting businesses across a wide range of industries. He will share examples from his work, discuss the skills and habits that have been most valuable in his career, and reflect on lessons from his time in college that proved most impactful after graduation.", "occurrence_notes":null, "guid":"152305-21913506@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/152305", "building_id":"1000429", "building_name":"Industrial and Operations Engineering Building", "campus_maps_id":"73", "room":"1610", "location_name":"Industrial and Operations Engineering Building", "has_livestream":0, "cost":"", "tags":["Undergraduate Students","Undergraduate","Industrial And Operations Engineering","Graduate Students","Graduate"], "website":"", "sponsors":[ { "group_name":"Industrial & Operations Engineering", "group_id":"3301", "website":"http:\/\/ioe.engin.umich.edu\/" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/09\/event_152305_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_thumb\/media\/attachments\/2026\/09\/event_152305_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/09\/event_152305_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_2x\/media\/attachments\/2026\/09\/event_152305_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/09\/event_152305_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2026\/09\/event_152305_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2026\/09\/event_152305_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2026\/09\/event_152305_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2026\/09\/event_152305_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2026\/09\/event_152305_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2026\/09\/event_152305_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/09\/event_152305_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/09\/event_152305_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2026\/09\/event_152305_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2026\/09\/event_152305_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/09\/event_152305_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21913506 } , "138074-21913190": { "datetime_modified":"20260915T105028", "datetime_start":"20261009T120000", "datetime_end":"20261009T124500", "has_end_time":1, "date_start":"2026-10-09", "date_end":"2026-10-09", "time_start":"12:00:00", "time_end":"12:45:00", "time_zone":"America\/Detroit", "event_title":"Lunchtime Yoga", "occurrence_title":"", "combined_title":"Lunchtime Yoga", "event_subtitle":"", "event_type":"Well-being", "event_type_id":"12", "description":"Lunchtime yoga is an opportunity to provide your body with some gentle movement, strengthening, stretching and balancing. We will use the poses to reconnect with your senses, to breathe some life back into ourselves, find internal balance and to recover from the efforts of the work week. The focus is on calm reconnection with ourselves rather than working out. Please bring a mat and a water bottle. 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Attendees will hear about the MADS program, the skills-based admission process, what's required as part of the application, and how the placement process works. Please join us to get your questions answered, and benefit from the curiosity of like-minded peers!", "occurrence_notes":null, "guid":"144393-21907913@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/144393", "building_id":"", "building_name":"", "campus_maps_id":"", "room":"", "location_name":"Virtual", "has_livestream":0, "cost":"", "tags":["Sessions"], "website":"https:\/\/sessions.studentlife.umich.edu\/p\/track\/16290", "sponsors":[ { "group_name":"Sessions @ Michigan", "group_id":"4791", "website":"https:\/\/sessions.studentlife.umich.edu\/" } ], "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":4, "first_occurrence":21907913 } , "149018-21905325": { "datetime_modified":"20260619T111555", "datetime_start":"20261009T120000", "datetime_end":"20261009T133000", "has_end_time":1, "date_start":"2026-10-09", "date_end":"2026-10-09", "time_start":"12:00:00", "time_end":"13:30:00", "time_zone":"America\/Detroit", "event_title":"Master's Resume Lab", "occurrence_title":"Master's Resume Lab", "combined_title":"Master's Resume Lab: Masters Resume Lab", "event_subtitle":"Masters Resume Lab", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"In this interactive workshop, the Rackham embedded University Career Center coaching team will guide you through building out a strong master's student resume. 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Another major focus of the group is identifying disease modifiers using advanced functional genomic screening platforms. 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Garner, Purdue University", "event_subtitle":"Allen L. Garner, Purdue University", "event_type":"Presentation", "event_type_id":"16", "description":"Dr. Allen L. Garner, a professor of nuclear engineering at Purdue University and U-M NERS alumnus, will discuss new mathematical approaches to modeling electron emission and current flow in complex geometries. His research explores how different electron emission mechanisms interact with space-charge limitations, offering alternatives to computationally expensive simulations. These models have applications in high-power microwaves, directed energy, radiation devices, and semiconductor manufacturing.\n\nAbstract:\nElectron emission physics is important in high-power microwaves, directed energy, high-power radiation devices, and sheath physics in plasma processing in the semiconductor industry. Electrons may be emitted due to strong electric fields by field emission (FE) or high cathode temperatures by thermal emission (TE). Jensen developed a mathematical framework to link FE, TE, and photoemission. Regardless of source, only so much current may be emitted into a gap. The resulting space-charge-limited current density (SCLCD) was derived over a century ago for a one-dimensional (1D) vacuum planar diode by Child and Langmuir, while Mott and Gurney derived an analogous law for semiconductors three decades later. Extensions to more realistic geometries and intermediate conditions between the Child-Langmuir (CLL) and Mott-Gurney (MGL) laws, as well as FE and TE, are challenging, often requiring detailed and computationally expensive simulations. This seminar describes approaches to model multidimensional, nonplanar geometries with multiple emission mechanisms and apply these models to practical conditions. \nFirst, we summarize geometric approaches to generalize SCLCD calculations. We apply variational calculus (VC) to extremize the current in the gap, conformal mapping of the space-charge electric potential to translate the solution from Cartesian coordinates to the geometry of interest, and Lie point symmetries (i.e., point transformations) to derive exact solutions for multiple 1D geometries. We further derive a universal relationship between vacuum electric potential and space-charge limited potential that yields SCLCD for multidimensional diodes with any geometry and apply it to derive the SCLCD for a tip-to-tip geometry and for arrays of tips, demonstrating reasons for disagreements between theory and particle-in-cell simulations. Since all these approaches depend on electric potential, we demonstrate the importance of the spatial variation of electric potential in a collisional gap and how it relates to the collision frequency. We further demonstrate the utility of these equations to calculate the collision frequency in a gap.\nNext, we describe our application of \u201cnexus\u201d theory to describe the transition between source currents (e.g., FE or TE) and the SCLCD. We combine nexus theory with point transformation to generalize SCLCD and the transitions between the source currents and SCLCD for nonplanar diodes. Using current-voltage curves from molecular dynamics simulations, we demonstrate how to combine nexus theory and charge-free electric potential to calculate emission area for any mechanism and geometry.\n\nBio: \nDr. Allen L. Garner received the B.S. degree (with high honors) in nuclear engineering from the University of Illinois, Urbana-Champaign, in 1996. He received an M.S.E. in nuclear engineering from the University of Michigan in 1997, an M.S. in electrical engineering from Old Dominion University in 2003, and a Ph.D. in nuclear engineering from the University of Michigan in 2006. 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Covering a wide range of topics\u2014from cutting-edge research and emerging technologies to policy, education, and professional development\u2014the weekly talks offer an opportunity to explore current issues and innovations shaping the future of the field.", "occurrence_notes":null, "guid":"150321-21909023@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/150321", "building_id":"1000403", "building_name":"Cooley Building", "campus_maps_id":"42", "room":"Baer Room (2906 Cooley)", "location_name":"Cooley Building", "has_livestream":0, "cost":"", "tags":["Colloquia","Science","Research","Physics","Michigan Engineering","Interdisciplinary"], "website":"", "sponsors":[ { "group_name":"Nuclear Engineering & Radiological Sciences", "group_id":"4000", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/09\/event_150321_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/09\/event_150321_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/09\/event_150321_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/09\/event_150321_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/09\/event_150321_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2026\/09\/event_150321_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2026\/09\/event_150321_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2026\/09\/event_150321_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2026\/09\/event_150321_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2026\/09\/event_150321_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/09\/event_150321_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/09\/event_150321_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/09\/event_150321_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2026\/09\/event_150321_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/09\/event_150321_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/09\/event_150321_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21909023 } }