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DTSTART;TZID=America/New_York:20191007T120000
DTEND;TZID=America/New_York:20191007T130000
DTSTAMP:20260408T131732
CREATED:20190919T182507Z
LAST-MODIFIED:20190919T182507Z
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SUMMARY:PSOC Seminar : "Using mechanics to understand liver cancer models"
DESCRIPTION:
URL:https://seasevents.nmsdev7.com/event/psoc-seminar-using-mechanics-to-understand-liver-cancer-models/
LOCATION:Room 337\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191008T103000
DTEND;TZID=America/New_York:20191008T120000
DTSTAMP:20260408T131732
CREATED:20190923T191922Z
LAST-MODIFIED:20190923T191922Z
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SUMMARY:MEAM Seminar: "Scalable Fabrication of Nanostructured Energy Storage Systems"
DESCRIPTION:The demand for autonomous devices\, including intelligent sensor platforms for IOT applications\, is driving a parallel need for efficient energy storage systems that are inexpensive to produce\, exhibit high power and energy densities\, and occupy a minimum footprint on the device. Necessary enhancement in the performance of batteries and supercapacitors can be realized by fabrication of hierarchical 3D architectures with dimensional control ranging from the nm to the macroscale\, however the most promising structures have proven difficult to achieve using approaches suitable for large scale production. \nWe are fabricating energy storage devices using combinations of nanoimprint lithography\, self-assembly\, and novel approaches to high-rate materials synthesis including rapid photothermal processing. In one example\, 3D lithium-ion microbatteries are prepared via imprint lithography using inks comprised of LiMn2O4 and Li4Ti5O12 nanoparticles and the battery cell is integrated vertically through layer-by-layer (LBL) assembly. The batteries are shown to possess superior capacity retention and high-power density. We also fabricate hierarchical graphene/carbon/FeOx nanoparticle composite anodes for high performance Li ion batteries using a combination of imprint lithography and photothermal processing\, wherein multilayer graphene embedded within a porous carbon matrix is generated in situ from a simple precursor film\, eliminating the need for externally sourced graphene. The approaches employed are rapid and highly efficient\, enabling batch fabrication for 3D microbattery systems as well as the roll-to-roll production of large energy storage batteries.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-scalable-fabrication-of-nanostructured-energy-storage-systems/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191008T110000
DTEND;TZID=America/New_York:20191008T120000
DTSTAMP:20260408T131732
CREATED:20190806T152126Z
LAST-MODIFIED:20190806T152126Z
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SUMMARY:ESE Seminar: "2D Materials for Unconventional Devices: From Flexible/Wearable Tattoo Sensors to Monolayer Memory"
DESCRIPTION:Abstract: This talk will present our latest research adventures on 2D nanomaterials towards greater scientific understanding and advanced engineering applications. In particular the talk will highlight our work on flexible electronics\, zero-power devices\, monolayer memory (atomristors)\, non-volatile RF switches\, and wearable tattoo sensors. Non-volatile memory devices based on 2D materials are an application of defects and is a rapidly advancing field with rich physics that can be attributed to sulfur vacancies or metal diffusion. Atomistic modeling and atomic resolution imaging are contemporary tools under use to elucidate the memory phenomena. Likewise\, from a practical point\, electronic tattoos based on graphene have ushered a new material platform that has highly desirable practical attributes including optical transparency\, mechanical imperceptibility\, and is the thinnest conductive electrode sensor that can be integrated on skin for physiological measurements. Much of these research achievements have been published in nature\, IEEE and ACS journals\, and widely covered by the news media including Time magazine\, BBC\, Nature news\, IEEE spectrum\, and several dozen media outlets. \nReferences:\n[1] Akinwande\, et al.\, “Graphene and 2D Materials for Silicon Technology\,” Nature\, 2019.\n[2] X. Wu\, R. Ge\, P.-A. Chen\, H. Chou\, Z. Zhang\, Y. Zhang\, S. Banerjee\, M.-H. Chiang\, J. C. Lee\, and D. Akinwande\, “Thinnest Nonvolatile Memory Based on Monolayer h-BN\,” Advanced Materials\, p. 1806790\, 2019.\n[3] M. Kim\, R. Ge\, X. Wu\, X. Lan\, J. Tice\, J. C. Lee\, and D. Akinwande\, “Zero-static power radio-frequency switches based on MoS2 atomristors\,” Nature Communications\, vol. 9\, p. 2524\, 2018.\n[4] S. Kabiri Ameri\, R. Ho\, H. Jang\, L. Tao\, Y. Wang\, L. Wang\, D. M. Schnyer\, D. Akinwande\, and N. Lu\, “Graphene Electronic Tattoo Sensors\,” ACS Nano\, vol. 11\, 2017.
URL:https://seasevents.nmsdev7.com/event/ese-seminar-deji-akinwande/
LOCATION:PICS Conference Room 534 – A Wing \, 5th Floor\, 3401 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
ORGANIZER;CN="Electrical and Systems Engineering":MAILTO:eseevents@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191008T150000
DTEND;TZID=America/New_York:20191008T160000
DTSTAMP:20260408T131732
CREATED:20190823T142458Z
LAST-MODIFIED:20190823T142458Z
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SUMMARY:Cultivating Cultures of Ethical STEM: Institutional Transformation and Industrial Research Approaches and Findings
DESCRIPTION:This two-part talk will describe the scope of work and emergent findings of two ongoing National Science Foundation Cultivating Cultures of Ethical STEM (CCESTEM) projects. Each project seeks to provide strategies for the design\, assessment\, and research of learners’ ethical formation. The first project\, an Institutional Transformation CCESTEM project (Award #1737157)\, seeks to utilize Faculty Learning Communities to refine instructional approaches to the Integrated Community-Engaged Learning and Ethical Reflection (I-CELER) framework among faculty in two departments at Indiana University Purdue University – Indianapolis (IUPUI). The second project\, a Standard Research CCESTEM project (Award #1737303)\, seeks to explore variations in ways of experience ethics among engineering practitioners in the health products industry. Taken together\, these projects provide insights for the design of learning environments to foster STEM students’ and practitioners’ ethical dispositions and reasoning skills.
URL:https://seasevents.nmsdev7.com/event/lecturers-seminar-series-on-teaching-and-learning/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191009T153000
DTEND;TZID=America/New_York:20191009T170000
DTSTAMP:20260408T131732
CREATED:20191008T130357Z
LAST-MODIFIED:20191008T130357Z
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SUMMARY:BE Doctoral Dissertation Defense: Human organ-on-chip systems for the study of biomechanical forces in health and disease
DESCRIPTION:
URL:https://seasevents.nmsdev7.com/event/be-doctoral-dissertation-defense-human-organ-on-chip-systems-for-the-study-of-biomechanical-forces-in-health-and-disease/
LOCATION:Glandt Forum\, Singh Center for Nanotechnology\, 3205 Walnut Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Bioengineering":MAILTO:be@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191011T110000
DTEND;TZID=America/New_York:20191011T130000
DTSTAMP:20260408T131732
CREATED:20191003T162023Z
LAST-MODIFIED:20191003T162023Z
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SUMMARY:MEAM Doctoral Dissertation Defense: "Problems in Nonlinear Homogenization: Bounds\, Estimates\, Macroscopic Instabilities\, and Post-Bifurcation Response"
DESCRIPTION:This talk is concerned with the use of nonlinear homogenization to study the effective response of composites. We look to illustrate the effect that constitutive assumptions have on the methods by which such estimates can be obtained\, as well as on the actual effective\, or homogenized\, response of the material. Although helpful in ensuring existence in a variational setting\, convexity is often inconsistent with certain physical requirements (e.g. objectivity). Such is the case of hyperelasticity\, the subject of the first part of the talk. The lack of convexity of the stored-energy functions of such hyperelastic systems has long been known to lead to the development of instabilities. When such instabilities do not result in material failure\, we look to study the post-bifurcation behavior of the system. We present a framework for doing so\, and compute the post-bifurcation response of a laminated hyperelastic composite explicitly under general three-dimensional loading conditions. In the second part of the talk\, we will consider the class of magneto-elastic composites\, which consist of hyperelastic materials that are also magnetically susceptible. Unlike in the case of hyperelasticity\, there lacks a complete mathematical framework for obtaining the effective response of such materials\, and researchers have only begun to investigate the potential for instabilities in these materials. We therefore look to generalize the same methodology used successfully in the purely mechanical context to study the post-bifurcation behavior of magneto-elastic composites. This in part requires a rigorous generalization of the theoretical aspects that underlie the method. With this\, we calculate the post-bifurcation response of a magneto-elastic material under general plane-strain loading conditions with a magnetic field applied in the plane of deformation.
URL:https://seasevents.nmsdev7.com/event/meam-doctoral-dissertation-defense-problems-in-nonlinear-homogenization-bounds-estimates-macroscopic-instabilities-and-post-bifurcation-response/
LOCATION:Towne 309\, 220 S. 33rd Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
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