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DTSTART;TZID=America/New_York:20220906T100000
DTEND;TZID=America/New_York:20220906T113000
DTSTAMP:20260405T175419
CREATED:20220824T122920Z
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SUMMARY:MEAM Seminar: "Mechanics Design in Cellulose-Enabled High-Performance Materials toward a Sustainable Future"
DESCRIPTION:The ever-growing world population demands material consumption and drives material discovery. The progress of modern society accompanies the advent of advanced materials to enable new performance and functionalities\, as epitomized by the invention of two most representative man-made materials: steels (4000 years ago) and petroleum-derived plastics (~80 years ago). The widespread use of steels (and other alloys) and plastics as structural and functional materials has radically revolutionized our daily life\, which\, however\, also comes with heavy environmental impacts. The tremendous energy/water cost and carbon footprint of manufacturing steels and the ever-devastating global white pollution due to plastic waste pose grand challenges to the sustainable future of humankind. Aiming to address such grand challenges\, we have been working on developing advanced sustainable materials that hold the promise to replace steels (and alloys) and plastics in recent years. To this end\, we focus particularly on cellulose\, the most abundant biopolymer on Earth\, as the source of sustainable materials. In this talk\, I will showcase a few examples of advanced sustainable materials developed at the Laboratory for Advance Sustainable Materials and Technology at UMD\, including transparent strong and tough cellulose nanopaper to replace plastic foils; superwood as a potential structural material to replace steels and alloys; cellulose-based composites to replace petroleum-derived plastic straws and packaging foam\, etc. These high-performance\, low-cost\, and nature-based advanced materials offer an array of promising material solutions toward a sustainable future.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-mechanics-design-in-cellulose-enabled-high-performance-materials-toward-a-sustainable-future/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220907T120000
DTEND;TZID=America/New_York:20220907T133000
DTSTAMP:20260405T175419
CREATED:20220907T161614Z
LAST-MODIFIED:20220907T161614Z
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SUMMARY:ASSET Seminar: Robust and Equitable Uncertainty Estimation (Aaron Roth\, University of Pennsylvania)
DESCRIPTION:Presentation Abstract:  \nMachine learning provides us with an amazing set of tools to make predictions\, but how much should we trust particular predictions? To answer this\, we need a way of estimating the confidence we should have in particular predictions of black-box models. Standard tools for doing this give guarantees that are averages over predictions. For instance\, in a medical application\, such tools might paper over poor performance on one medically relevant demographic group if it is made up for by higher performance on another group. Standard methods also depend on the data distribution being static — in other words\, the future should be like the past. \nIn this talk\, we will describe a new technique to address both these problems: a way to produce prediction sets for arbitrary black-box prediction methods that have correct empirical coverage even when the data distribution might change in arbitrary\, unanticipated ways and such that we have correct coverage even when we zoom in to focus on demographic groups that can be arbitrary and intersecting. \nThis is a joint work with Osbert Bastani\, Varun Gupta\, Christopher Jung\, Georgy Noarov\, and Ramya Ramalingam.
URL:https://seasevents.nmsdev7.com/event/asset-seminar-robust-and-equitable-uncertainty-estimation-aaron-roth-university-of-pennsylvania/
LOCATION:Levine 307\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
ORGANIZER;CN="Computer and Information Science":MAILTO:cherylh@cis.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220908T140000
DTEND;TZID=America/New_York:20220908T160000
DTSTAMP:20260405T175419
CREATED:20220902T155412Z
LAST-MODIFIED:20220902T155412Z
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SUMMARY:BE Doctoral Dissertation Defense: "Sex differences in head impact biomechanics and quantitative functional deficits due to repetitive head loading in high school sports" (Colin Huber)
DESCRIPTION:The Department of Bioengineering at the University of Pennsylvania and Dr. Kristy Arbogast are pleased to announce the Doctoral Dissertation Defense of Colin Huber.\n \nTitle: Sex differences in head impact biomechanics and quantitative functional deficits due to repetitive head loading in high school sports\nDate: Thursday\, September 8th\, 2022\nTime: 2:00 PM ET\nLocation: Roberts Center for Pediatric Research\, Room 1120B\, 734 Schuylkill Ave\, Philadelphia\, PA 19146 (across South Street Bridge)\nZoom: https://upenn.zoom.us/j/99894194174 \nPasscode: Concussion
URL:https://seasevents.nmsdev7.com/event/be-doctoral-dissertation-defense-sex-differences-in-head-impact-biomechanics-and-quantitative-functional-deficits-due-to-repetitive-head-loading-in-high-school-sports-colin-huber/
LOCATION:Room 1120B\, Roberts Center for Pediatric Research\, 2716 South Street\, Philadelphia\, PA\, 19146\, United States
CATEGORIES:Doctoral,Graduate,Student
ORGANIZER;CN="Bioengineering":MAILTO:be@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220909T100000
DTEND;TZID=America/New_York:20220909T110000
DTSTAMP:20260405T175419
CREATED:20220826T192435Z
LAST-MODIFIED:20220826T192435Z
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SUMMARY:MEAM Ph.D. Thesis Defense: "A Spin-Lattice Dynamics Model with Improved Energy and Angular Momentum Conservation"
DESCRIPTION:Magnetic materials are critically important in a wide range of application areas including data storage\, medicine\, energy harvesting\, and refrigeration. Atomistic numerical simulations of magnetic materials can provide important insight in these applications because they offer the ability to track phenomena such as magnon-phonon interactions\, ultrafast demagnetization processes\, and magnetization and energy at time and length scales that can be difficult to observe experimentally. Spin-lattice dynamics\, a classical atomistic simulation method that models atomic magnetic moments and atomic displacements simultaneously\, is able to capture these phenomena. Unfortunately\, energy stability can be a challenge in spin-lattice dynamics simulations and angular momentum artifacts are a known issue in atomistic models of periodic systems. Both of these problems can cause errors in the evolution of spin orientations and atomic positions\, leading to unphysical predictions of temperature\, magnetization\, and thermal-magnetic coupling in magnetic materials. This dissertation presents an improved computational model for spin-lattice dynamics simulations developed to address the above challenges. The model offers superior energy and magnetization conservation and the ability to quantify lattice angular momentum changes generated by spin relaxation processes in bulk materials. The improvements made in this work advance spin-lattice dynamics as a computational tool for the design and analysis of magnetic materials.
URL:https://seasevents.nmsdev7.com/event/meam-ph-d-thesis-defense-a-spin-lattice-dynamics-model-with-improved-energy-and-angular-momentum-conservation/
LOCATION:Zoom – Email MEAM for Link\, peterlit@seas.upenn.edu
CATEGORIES:Doctoral,Dissertation or Thesis Defense
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220909T103000
DTEND;TZID=America/New_York:20220909T114500
DTSTAMP:20260405T175419
CREATED:20220907T182509Z
LAST-MODIFIED:20220907T182509Z
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SUMMARY:Fall 2022 GRASP Seminar: GRASP Research Overview - Day 1
DESCRIPTION:GRASP Lab faculty confirmed presentations (where appropriate their presenters)…\n*This is a HYBRID Event with in-person attendance in Wu & Chen Auditorium and virtual attendance via Zoom. \nDr. Mark Yim (Welcome & Introduction)\nDr. Pratik Chaudhari\nDr. Kostas Daniilidis\nDr. Eric Eaton\nDr. Dinesh Jayaraman\nDr. Michelle Johnson (presented by Francis Sowande)\nDr. Michael Posa\nDr. Jianbo Shi
URL:https://seasevents.nmsdev7.com/event/fall-2022-grasp-seminar-grasp-research-overview-day-1/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
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