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DTSTART;TZID=America/New_York:20201130T120000
DTEND;TZID=America/New_York:20201130T130000
DTSTAMP:20260407T132207
CREATED:20200908T171754Z
LAST-MODIFIED:20200908T171754Z
UID:10006484-1606737600-1606741200@seasevents.nmsdev7.com
SUMMARY:PSOC Webinar: Alexandra Zidovska
DESCRIPTION:Talk title TBC \nPhysical Sciences in Oncology Center PSOC@Penn \nFall 2020 Webinar Series Mondays @ Noon (EST) \nFor webinar links\, please contact manu@seas.upenn.edu
URL:https://seasevents.nmsdev7.com/event/psoc-webinar-alexandra-zidovska/
LOCATION:PA
CATEGORIES:Seminar
ORGANIZER;CN="PSOC":MAILTO:manu@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201201T103000
DTEND;TZID=America/New_York:20201201T120000
DTSTAMP:20260407T132207
CREATED:20200831T152121Z
LAST-MODIFIED:20200831T152121Z
UID:10006465-1606818600-1606824000@seasevents.nmsdev7.com
SUMMARY:MEAM Seminar: “'Smart' Biodegradable Polymer at Nano and Micro Scales for Medical Applications"
DESCRIPTION:The ability to transform medical polymers\, commonly used for resorbable surgical sutures\, into desired 3D forms/shapes/structures at nano and micro scales with “smart” functions\, while sustaining the materials’ excellent biocompatibility and biodegradability\, provides significant applications in different biomedical fields\, ranging from tissue engineering and controlled drug/vaccine delivery to medical devices. Here\, I will present our recent research works to create 3D microstructures of biodegradable polymers for developing single-administered vaccines\, and convert the biopolymers into “smart” piezoelectric nanomaterials\, which can generate electricity under deformation and vice versa\, offering a variety of exciting applications in biodegradable force sensors\, tissue-engineering scaffolds and medical transducers.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-smart-biodegradable-polymer-at-nano-and-micro-scales-for-medical-applications/
LOCATION:Zoom – Email MEAM for Link\, peterlit@seas.upenn.edu
CATEGORIES:Seminar
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201201T150000
DTEND;TZID=America/New_York:20201201T160000
DTSTAMP:20260407T132207
CREATED:20201119T193735Z
LAST-MODIFIED:20201119T193735Z
UID:10006551-1606834800-1606838400@seasevents.nmsdev7.com
SUMMARY:CIS Seminar: "Challenges of Incorporating Algorithms into Decision Making: Fairness\, Welfare and Disparate Interactions"
DESCRIPTION:Algorithms have entered the center of many decision making processes\, either by providing predictions or assessments to facilitate human decision making or\, in some scenarios\, suggesting decisions directly. More and more attention has been placed to ensure algorithms satisfy some desirable notion of fairness\, which is an important step forward. In this talk\, I will discuss the importance of examining algorithmic decision-making and algorithm-facilitated decision making in the broader context of intended applications and in the lens of human-algorithm interactions. I will first present a welfare-based analysis of fair classification algorithms to assess the welfare impact of fairness-constrained classification algorithms in the context of financial lending. Our analysis shows that applying stricter  fairness constraints in the algorithms can worsen welfare outcomes of all groups. Then\, I’ll discuss a sequence of controlled human-subject experiments studying how the interactions between people and algorithms influence human decision making. In our experiments in two contexts (pretrial release and financial lending)\, when presented with algorithmic risk assessments\, participants exhibited additional bias in their decisions and showed a change in their decision-making process by increasing risk aversion.\n\nThis talk is based on joint works with Lily Hu and Ben Green.
URL:https://seasevents.nmsdev7.com/event/cis-seminar-challenges-of-incorporating-algorithms-into-decision-making-fairness-welfare-and-disparate-interactions/
LOCATION:Zoom – Email CIS for link\, cherylh@cis.upenn.edu
ORGANIZER;CN="Computer and Information Science":MAILTO:cherylh@cis.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201201T150000
DTEND;TZID=America/New_York:20201201T170000
DTSTAMP:20260407T132207
CREATED:20201112T184204Z
LAST-MODIFIED:20201112T184204Z
UID:10006545-1606834800-1606842000@seasevents.nmsdev7.com
SUMMARY:Doctoral Dissertation: "Biomechanical & Biochemical Contributions of Matrix Metalloproteinases in Joint Pain: Models\, Mechanisms & Patients"
DESCRIPTION:The Department of Bioengineering at the University of Pennsylvania and Dr. Beth Winkelstein are pleased to announce the Doctoral Dissertation Defense of Meagan Ita.  \nTitle: “Biomechanical & Biochemical Contributions of Matrix Metalloproteinases in Joint Pain: Models\, Mechanisms & Patients”\n\nJoin Zoom Meeting\nhttps://upenn.zoom.us/j/92269228349\nMeeting ID: 922 6922 8349
URL:https://seasevents.nmsdev7.com/event/doctoral-dissertation-biomechanical-biochemical-contributions-of-matrix-metalloproteinases-in-joint-pain-models-mechanisms-patients/
LOCATION:PA
CATEGORIES:Student,Dissertation or Thesis Defense
ORGANIZER;CN="Bioengineering":MAILTO:be@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201204T140000
DTEND;TZID=America/New_York:20201204T150000
DTSTAMP:20260407T132207
CREATED:20201104T134517Z
LAST-MODIFIED:20201104T134517Z
UID:10006538-1607090400-1607094000@seasevents.nmsdev7.com
SUMMARY:PICS Colloquium: "Swarming bacteria as novel active biomaterials – insights into the collective mechanics\, particle transport and morphological adaptation in swarming bacteria from in-silico experiments"
DESCRIPTION:Abstract: Flagellated and motile bacteria\, in isolation or in coexistence with fungi\, are implicated in about two-thirds of human infections. During infection\, and generally even in relatively benign situations\, bacteria may colonize surfaces via a process called swarming – a form of rapid translocation associated with changes in cell phenotype.  As swarmer cells move rapidly\, they interact with each other forming cohesive structures that then rapidly develop into collective multicellular aggregates.  Understanding the swarming process is important for biomedicine\, and is relevant  to evolutional biology – in\, for instance\, understanding the evolution of phylogenetic spatial structures in bacterial populations. On a complementary note\, understanding the biophysical and mechanical aspects of swarming can provide insights into synthesizing the next generation of adaptable matter.    \nWhile comprised of independently cells\, swarms exhibit collective properties and remarkable emergent flow patterns. Recent work supports treating these collective systems as novel living biomaterials with evolving composite properties. In this talk\, I will discuss how the combination of key experimental discoveries combined with multi-scale simulations enables careful interrogation\, analysis and understanding of microbial swarms and films. The experimental component of the talk will highlight experimental observations on swarming Serratia marcescens\, a rod-shaped gram negative bacterium. Following that\, I will discuss recent work on a suite of computational approaches that we exploit to simulate these active systems. Our approaches include agent-based full-hydrodynamics simulations\, adaptations of Active Brownian Particle (ABP) stochastic models\, and mean-field continuum models solved using parallellized level-set methods on high resolution and highly adaptive Quadtree meshes.
URL:https://seasevents.nmsdev7.com/event/pics-colloquium-swarming-bacteria-as-novel-active-biomaterials-insights-into-the-collective-mechanics-particle-transport-and-morphological-adaptation-in-swarming-bacteria-from-in-silico/
LOCATION:PA
CATEGORIES:Colloquium
ORGANIZER;CN="Penn Institute for Computational Science (PICS)":MAILTO:dkparks@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201207T120000
DTEND;TZID=America/New_York:20201207T130000
DTSTAMP:20260407T132207
CREATED:20200908T172016Z
LAST-MODIFIED:20200908T172016Z
UID:10006485-1607342400-1607346000@seasevents.nmsdev7.com
SUMMARY:PSOC Webinar: “Interplay of receptor tyrosine kinase activation at the cell surface and environmental mechanics” (Shalini Low-Nam)
DESCRIPTION:“Interplay of receptor tyrosine kinase activation at the cell surface and environmental mechanics” \nPhysical Sciences in Oncology Center PSOC@Penn \nFall 2020 Webinar Series Mondays @ Noon (EST) \nFor webinar links\, please contact manu@seas.upenn.edu
URL:https://seasevents.nmsdev7.com/event/psoc-webinar-interplay-of-receptor-tyrosine-kinase-activation-at-the-cell-surface-and-environmental-mechanics-shalini-low-nam/
LOCATION:PA
CATEGORIES:Seminar
ORGANIZER;CN="PSOC":MAILTO:manu@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201208T103000
DTEND;TZID=America/New_York:20201208T120000
DTSTAMP:20260407T132207
CREATED:20201124T222847Z
LAST-MODIFIED:20201124T222847Z
UID:10006552-1607423400-1607428800@seasevents.nmsdev7.com
SUMMARY:MEAM Seminar: "Bridging Physical Models and Observational Data with Physics-informed Deep Learning"
DESCRIPTION:Physical models of many natural and engineered systems are\, at best\, only partially known; a common setting under which classical analytical or computational tools inevitably face challenges and introduce many sources of uncertainty. Therefore\, observational data plays a crucial role\, yet our ability to collect them far outpaces our ability to sensibly assimilate it\, let alone understand it. Despite their towering empirical success\, machine learning approaches are not currently able to extract interpretable information and knowledge from this data deluge. Moreover\, purely data-driven methods may fit observations very well\, but predictions may be physically inconsistent or implausible\, due to extrapolation or observational biases\, for example. In this talk we will discuss the foundations of a new family of machine learning methods coined as physics-informed neural networks\, that aim to seamlessly bridge this gap by synthesizing incomplete physics-based models with imperfect observational data. Specifically\, we will illustrate the mechanisms by which deep neural networks can be constrained to respect fundamental laws of physics\, but also highlight certain pathologies and limitations that arise during this process. Strikingly\, some of the latter can be addressed by exploring connections to classical methods in numerical analysis and optimization\, opening the path to designing more principled algorithms and deep learning architectures that do not simply rely on guesswork. Finally\, we will demonstrate the power of these methods across a range of diverse engineering applications\, including problems in design optimization\, heat transfer\, wave propagation\, cardiovascular fluid mechanics\, and modeling of COVID-19 spread dynamics.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-bridging-physical-models-and-observational-data-with-physics-informed-deep-learning/
LOCATION:Zoom – Email MEAM for Link\, peterlit@seas.upenn.edu
CATEGORIES:Seminar
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201209T150000
DTEND;TZID=America/New_York:20201209T160000
DTSTAMP:20260407T132207
CREATED:20200917T001220Z
LAST-MODIFIED:20200917T001220Z
UID:10006503-1607526000-1607529600@seasevents.nmsdev7.com
SUMMARY:CBE Seminar: "Bio-inspired Pathways to Manipulating Architecture and Mechanics in Polymeric Materials"
DESCRIPTION:Abstract\n \nFiber constructs are prevalent in natural systems\, from collagen fiber networks in tendon to tough\, spider silk fibers. Recent innovations in multilayer co-extrusion technology have translated to the fabrication of melt-extruded fiber-reinforced composites\, reminiscent of the nanoscale features of the Brown Recluse Spider. Distinct advantages of this modular approach over other traditional techniques include scalability\, environmentally-friendly conditions\, and the ability to obtain cross-sectional dimensions on the nanoscale. Here\, we describe the mechanics and structural features of biologically-relevant\, reinforced hydrogels via an in situ approach. This manufacturing strategy allows for strategic control of hydrogel architecture\, fiber (single component and blends) alignment and loading\, and compressive stability and stiffness. Promising results related to cell adherence and growth\, and controlled degradation rates\, are highlighted for these extruded hydrogel scaffolds. \nSupramolecular interactions may hold the key to the development of elastomers with a tailored elastic response and improved mechanics\, such as observed in the muscle protein titin and polychaete worm jaw. It is the dynamic nature of the supramolecular interaction that we have exploited in the design of tough supramolecular elastomers that superimpose covalent and non-covalent interactions to tailor tensile response. In this research\, concepts of interfacial control of self-assembly\, composition\, and dynamics as it relates to mechanical behavior are examined. Supramolecular blends\, nanocomposites and interpenetrating networks have been investigated to achieve gradient mechanics\, shape memory response\, and bilayer actuation. These systems show promise in smart coating applications and for the development of functional polymer blends.
URL:https://seasevents.nmsdev7.com/event/cbe-seminar-bio-inspired-pathways-to-manipulating-architecture-and-mechanics-in-polymeric-materials/
LOCATION:Zoom – Email CBE for link
CATEGORIES:Seminar
ORGANIZER;CN="Chemical and Biomolecular Engineering":MAILTO:cbemail@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201210T100000
DTEND;TZID=America/New_York:20201210T120000
DTSTAMP:20260407T132207
CREATED:20201204T190653Z
LAST-MODIFIED:20201204T190653Z
UID:10006557-1607594400-1607601600@seasevents.nmsdev7.com
SUMMARY:CBE PhD Dissertation Defense  | Integrin crosstalk in the upstream migration of CD4+ T lymphocytes
DESCRIPTION:
URL:https://seasevents.nmsdev7.com/event/cbe-phd-dissertation-defense-integrin-crosstalk-in-the-upstream-migration-of-cd4-t-lymphocytes/
LOCATION:Zoom – Email CBE for link
CATEGORIES:Doctoral,Graduate,Student,Dissertation or Thesis Defense
ORGANIZER;CN="Chemical and Biomolecular Engineering":MAILTO:cbemail@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201210T104500
DTEND;TZID=America/New_York:20201210T114500
DTSTAMP:20260407T132207
CREATED:20200828T161336Z
LAST-MODIFIED:20200828T161336Z
UID:10006460-1607597100-1607600700@seasevents.nmsdev7.com
SUMMARY:MSE Graduate Student Seminar
DESCRIPTION:
URL:https://seasevents.nmsdev7.com/event/mse-graduate-student-seminar/
LOCATION:PA
ORGANIZER;CN="Materials Science and Engineering":MAILTO:johnruss@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201210T110000
DTEND;TZID=America/New_York:20201210T120000
DTSTAMP:20260407T132207
CREATED:20201118T214105Z
LAST-MODIFIED:20201118T214105Z
UID:10006548-1607598000-1607601600@seasevents.nmsdev7.com
SUMMARY:ESE Seminar: "The Role of Explicit Regularization in Overparameterized Neural Networks"
DESCRIPTION:Overparameterized neural networks have proved to be remarkably successful in many complex tasks such as image classification and deep reinforcement learning. In this talk\, we will consider the role of explicit regularization in training overparameterized neural networks. Specifically\, we consider ReLU networks and show that the landscape of commonly used regularized loss functions have the property that every local minimum has good memorization and regularization performance. Joint work with Shiyu Liang and Ruoyu Sun.
URL:https://seasevents.nmsdev7.com/event/ese-seminar-the-role-of-explicit-regularization-in-overparameterized-neural-networks/
LOCATION:Zoom – Email ESE for Link jbatter@seas.upenn.edu
CATEGORIES:Seminar,Faculty,Colloquium,Graduate,Undergraduate
ORGANIZER;CN="Electrical and Systems Engineering":MAILTO:eseevents@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201215T120000
DTEND;TZID=America/New_York:20201215T130000
DTSTAMP:20260407T132207
CREATED:20201208T163504Z
LAST-MODIFIED:20201208T163504Z
UID:10006565-1608033600-1608037200@seasevents.nmsdev7.com
SUMMARY:ESE Seminar: "Learning is Pruning"
DESCRIPTION:The strong lottery ticket hypothesis (LTH) postulates that any neural network can be approximated by simply pruning a sufficiently larger network of random weights. Recent work establishes that the strong LTH is true if the random network to be pruned is a large poly-factor wider than the target one. This polynomial over-parameterization is at odds with experimental research that achieves good approximation by pruning networks that are only a small factor wider than the target one. In this talk\, I will tell you how we close this gap and offer an exponential improvement to the over-parameterization requirement. I will give a sketch of the proof that any target network can be approximated by pruning a random one that is only a logarithmic factor wider. This is possible by establishing a connection between pruning random ReLU networks and random instances of the weakly NP-hard SubsetSum problem. Our work indicates the existence of a universal striking phenomenon: neural network training is equivalent to pruning slightly overparameterized networks of random weights. I will conclude with sharing hints of a general framework indicating the existence of good pruned networks for a variety of activation functions\, architectures\, even applicable for the case where both initialization weights and activations are binary.
URL:https://seasevents.nmsdev7.com/event/ese-seminar-learning-is-pruning/
LOCATION:Zoom – Email ESE for Link jbatter@seas.upenn.edu
CATEGORIES:Seminar,Faculty,Colloquium,Graduate,Undergraduate
ORGANIZER;CN="Electrical and Systems Engineering":MAILTO:eseevents@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201216T103000
DTEND;TZID=America/New_York:20201216T123000
DTSTAMP:20260407T132207
CREATED:20201201T184857Z
LAST-MODIFIED:20201201T184857Z
UID:10006554-1608114600-1608121800@seasevents.nmsdev7.com
SUMMARY:Doctoral Dissertation: "Implantable Micro-Tissue Engineered Nerve Grafts to Maintain Regenerative Capacity and Facilitate Functional Recovery Following Nervous System Injury" (Justin Burrell)
DESCRIPTION:The Department of Bioengineering at the University of Pennsylvania and Dr. D. Kacy Cullen are pleased to announce the Doctoral Dissertation Defense of Justin Burrell. \nTitle:  Implantable Micro-Tissue Engineered Nerve Grafts to Maintain Regenerative Capacity and Facilitate Functional Recovery Following Nervous System Injury  \nThe public is welcome to attend virtually via Bluejeans.
URL:https://seasevents.nmsdev7.com/event/doctoral-dissertation-implantable-micro-tissue-engineered-nerve-grafts-to-maintain-regenerative-capacity-and-facilitate-functional-recovery-following-nervous-system-injury-justin-burrell/
LOCATION:PA
CATEGORIES:Student,Dissertation or Thesis Defense
ORGANIZER;CN="Bioengineering":MAILTO:be@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201217T100000
DTEND;TZID=America/New_York:20201217T110000
DTSTAMP:20260407T132207
CREATED:20201201T181615Z
LAST-MODIFIED:20201201T181615Z
UID:10006553-1608199200-1608202800@seasevents.nmsdev7.com
SUMMARY:MEAM Ph.D. Thesis Defense: "Structural and Mechanical Responses to Intermittent Parathyroid Hormone Treatment\, Discontinuation\, and Cyclic Administration Regimens"
DESCRIPTION:Bone mineral density rapidly decreases upon withdrawal from intermittent parathyroid hormone (PTH) treatment despite its potent effect of promoting bone formation. To better understand this adverse phenomenon\, this study first aimed to investigate the phenotype of PTH withdrawal in both intact and estrogen-deficient rat model by using a well-designed experiment combined with innovative longitudinal imaging techniques and localized cellular activities. Due to observing a continuous anabolic window upon early discontinuation of PTH treatment in estrogen-deficient animals\, we propose a potential effective treatment strategy\, the short cycles of PTH and antiresorptive treatment regimen\, which could extend the anabolic windows by increasing the number of newly activated modeling-based bone formation (MBF) sites. Lastly\, to understand the structure-function relationships of bone tissue formed through MBF compared to the remodeling-based bone formation (RBF)\, we developed an innovative imaging platform with a mechanical testing platform to determine the mechanical properties of MBF and RBF and their long-term contributions in intact animals.
URL:https://seasevents.nmsdev7.com/event/meam-ph-d-thesis-defense-discontinuation-of-intermittent-parathyroid-hormone-and-potential-osteoporosis-treatment-strategy/
LOCATION:Zoom – Email MEAM for Link\, peterlit@seas.upenn.edu
CATEGORIES:Seminar,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:20210107T093000
DTEND;TZID=America/New_York:20210107T123000
DTSTAMP:20260407T132207
CREATED:20201204T184727Z
LAST-MODIFIED:20201204T184727Z
UID:10006556-1610011800-1610022600@seasevents.nmsdev7.com
SUMMARY:CBE PhD Dissertation Defense  | Investigation of High-Surface-Area Titanate (ATiO3) Thin Films Prepared by Atomic Layer Deposition
DESCRIPTION:Abstract: \n“Heterogeneous catalysis is critically important in the chemical-processing and energy-related industries. Ideally\, reaction sites on heterogeneous catalysts can be regenerated\, and the catalysts should be active throughout the catalytic process. However\, harsh reaction conditions and parallel side reactions can be harmful to the metal catalysts\, making deactivation a common phenomenon. Finding a catalyst that is stable can be a challenging yet significant task. Metal-doped perovskite materials have been referred to as “intelligent catalysts” because of the ability to insert and remove precious metal cations from the support lattice under cyclic redox conditions. The concept of “intelligent catalysts” became interesting because the stability of the doped metals was found to be significantly improved. However\, the concept was not entirely successful due to the low specific surface areas of these materials\, the slow kinetics for ingress and egress from the lattice\, and poor metal utilization. Reducing the length scale of the perovskite materials could potentially overcome these problems\, and it can be achieved by coating a thin perovskite film with a thickness of around 1nm on a high-surface-area onto an inert support. Work in this thesis used Atomic Layer Deposition (ALD) to deposit titanates (ATiO3\, A=Ca\, Sr or Ba) that were roughly 1-nm thick onto high-surface-area substrates. When using these thin-film materials as supports for catalytically active metals\, the thin-film samples showed properties similar to their bulk counterparts. Improved stabilities were found on the systems where strong interactions occur. However\, the interactions between metals and the thin-film perovskite materials to be different from bulk “intelligent catalysts” in some ways. The differences between bulk and thin-film systems can lead to very different particle geometries and catalytic properties. Systematic comparisons of metal-perovskite interactions were performed for the titanate thin films with different A-site cations. Changing A-site cations can lead to changes in metal properties\, including but not limited to the metal geometries\, reducibilities\, and the resulting catalytic performances. The role of A-site cations in determining the forms and degrees of metal-perovskite interactions were also discussed.“
URL:https://seasevents.nmsdev7.com/event/cbe-phd-dissertation-defense-investigation-of-high-surface-area-titanate-atio3-thin-films-prepared-by-atomic-layer-deposition/
LOCATION:Zoom – Email CBE for link
CATEGORIES:Doctoral,Graduate,Dissertation or Thesis Defense
ORGANIZER;CN="Chemical and Biomolecular Engineering":MAILTO:cbemail@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20210111T150000
DTEND;TZID=America/New_York:20210111T170000
DTSTAMP:20260407T132207
CREATED:20201221T160845Z
LAST-MODIFIED:20201221T160845Z
UID:10006569-1610377200-1610384400@seasevents.nmsdev7.com
SUMMARY:CBE PhD Dissertation Defense | Study of Metal Catalysts Supported on Thin Films of Perovskites prepared by Atomic Layer Deposition (ALD)
DESCRIPTION:Abstract: \n\nSintering is a severe problem with supported-metal catalysts in high-temperature applications\, such as in automotive-emissions control\, because it leads to a loss of catalytically active surface area. To stabilize the metal particles\, in 2001\, the Daihatsu group proposed using perovskite-supported metals\, which they referred to as “intelligent” catalysts. The original goal was to regenerate sintered metals by driving the metal into the oxide lattice by high-temperature oxidation and releasing the metal as small particles by reduction. Unfortunately\, the concept has not been entirely successful\, partially because of the large crystallite size and low surface areas of typical perovskites. To achieve higher surface areas and reduce the length scale for any ingress-egress of metal particles\, Atomic Layer Deposition (ALD) was used in this thesis to prepare thermally stable thin films of perovskites on high-surface-area supports. Metal catalysts\, Pt\, Ni\, Pd\, and Rh\, were deposited onto the perovskite thin films\, LaCoO 3 and LaFeO 3 \, using ALD.\n\n\n\n\n\nThis thesis focused on studying metal-perovskite interactions in the ALD samples of metals supported on LaFeO 3 films. It was found that metal-perovskite interactions could dramatically affect the preferential alignment of metal particles with the substrate\, the metal dispersions\, and catalytic activity. In the presence of the perovskite films\, the equilibrium oxidation of the metals could also shift several order-of-magnitudes towards lower PO 2 . The changes in the thermodynamic properties would further cause different catalytic behaviors. Systems of different metals supported on LaFeO 3 films were studied and compared; it was found that the metal-perovskite interaction is specific for each system.
URL:https://seasevents.nmsdev7.com/event/cbe-phd-dissertation-defense-study-of-metal-catalysts-supported-on-thin-films-of-perovskites-prepared-by-atomic-layer-deposition-ald/
LOCATION:Zoom – Email CBE for link
CATEGORIES:Doctoral,Graduate,Dissertation or Thesis Defense
ORGANIZER;CN="Chemical and Biomolecular Engineering":MAILTO:cbemail@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20210114T104500
DTEND;TZID=America/New_York:20210114T114500
DTSTAMP:20260407T132207
CREATED:20210107T165845Z
LAST-MODIFIED:20210107T165845Z
UID:10006571-1610621100-1610624700@seasevents.nmsdev7.com
SUMMARY:MSE Seminar: "The light stuff: sculpting photons at the molecular-scale for sustainability"
DESCRIPTION:We present methods to sculpt light at the atomic and molecular scale to detect and control chemical transformations\, en-route to improved planetary and personal health. First\, we study plasmon-driven chemical transformations\, focussing on the photocatalytic dehydrogenation of AuPd systems. Here\, the Au acts as a plasmonic light absorber and Pd serves as the catalyst. Using optically-coupled electron microscopy\, we find that plasmons modify the rate of distinct reaction steps differently\, increasing the overall rate more than ten-fold. Plasmons also open a new reaction pathway that is not observed without illumination\, laying a foundation for site-selective and product-specific photocatalysts. Next\, we describe methods to enable enantiospecific photochemistry\, using resonant dielectric nanoparticles. By overlapping electric and magnetic resonances\, these nanostructures can significantly enhance circular dichroism for improved chiral sensing and spectroscopy as well as high-yield enantioselective photochemistry. Finally\, we describe resonant nanophotonic surfaces that enable multiplexed detection of SARS-CoV-2 gene sequences. The high quality factor (high-Q) produces a large amplification of the electromagnetic field intensities near the nanostructures that increase the response to minute refractive index changes from targeted binding of nucleic acids; simultaneously\, the optical signal is beam-steered for multiplexed detection. We will present the design and development of this quantitative optical assay\, as well as application to clinical samples.
URL:https://seasevents.nmsdev7.com/event/mse-seminar-the-light-stuff-sculpting-photons-at-the-molecular-scale-for-sustainability/
LOCATION:PA
ORGANIZER;CN="Materials Science and Engineering":MAILTO:johnruss@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20210115T150000
DTEND;TZID=America/New_York:20210115T160000
DTSTAMP:20260407T132207
CREATED:20201202T171228Z
LAST-MODIFIED:20201202T171228Z
UID:10006555-1610722800-1610726400@seasevents.nmsdev7.com
SUMMARY:Doctoral Dissertation Defense: "Multiscale Modeling of Cell Fate Switching to Predict Patient-specific Responses to Combination Cancer Therapy" (Lindsey Fernandez)
DESCRIPTION:The Department of Bioengineering at the University of Pennsylvania and Dr. Ravi Radhakrishnan are pleased to announce the Doctoral Dissertation Defense of Lindsey Fernandez. The public is welcome to attend via Blujeans (Meeting ID 680 058 608 4). \nTitle: “Multiscale Modeling of Cell Fate Switching to Predict Patient-specific Response to Combination Cancer Therapy”
URL:https://seasevents.nmsdev7.com/event/doctoral-dissertation-defense-multiscale-modeling-of-cell-fate-switching-to-predict-patient-specific-responses-to-combination-cancer-therapy-lindsey-fernandez/
LOCATION:PA
CATEGORIES:Doctoral,Student,Dissertation or Thesis Defense
ORGANIZER;CN="Bioengineering":MAILTO:be@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20210119T110000
DTEND;TZID=America/New_York:20210119T120000
DTSTAMP:20260407T132207
CREATED:20210112T195522Z
LAST-MODIFIED:20210112T195522Z
UID:10006576-1611054000-1611057600@seasevents.nmsdev7.com
SUMMARY:CIS Seminar: “Hash Tables Lecture”
DESCRIPTION:Abstract: \nThe lecture that I will cover is going to be on Hash Tables. The lecture is designed for an introductory CS course and/or a data structures course. We are in the last 3rd of the semester when this topic is covered. At this point\, students are comfortable with programming (in Python). In addition\, they have some experience with complexity analysis in the context of the topics we have already covered in the course\, including iteration\, recursion\, various search and sort algorithms\, arrays\, and lists. \nThe lecture will discuss what hash tables are\, their importance\, and examples of their use in real life. We will then talk about what hashing is and how hash tables work. We will briefly discuss collisions\, what they are\, how to deal with them\, and why they are problematic. Lastly\, we will introduce dictionaries\, the hash table implementation in Python. The lecture will involve multiple active learning exercises and live coding.
URL:https://seasevents.nmsdev7.com/event/cis-seminar-hash-tables-lecture/
LOCATION:Zoom – Email CIS for link\, cherylh@cis.upenn.edu
ORGANIZER;CN="Computer and Information Science":MAILTO:cherylh@cis.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20210119T133000
DTEND;TZID=America/New_York:20210119T153000
DTSTAMP:20260407T132207
CREATED:20201210T150330Z
LAST-MODIFIED:20201210T150330Z
UID:10006566-1611063000-1611070200@seasevents.nmsdev7.com
SUMMARY:BE Doctoral Dissertation Defense: "Magnetic Resonance Imaging Assessment of Maternal Uteroplacental Hemodynamics During Pregnancy" (Eileen Hwuang)
DESCRIPTION:The Department of Bioengineering along with Drs. Walter Witschey and John Detre are pleased to announce the Doctoral Dissertation Defense of Eileen Hwuang. The public is welcome to attend via Zoom. \nTitle: “Magnetic resonance imaging assessment of maternal uteroplacental hemodynamics during pregnancy” \nZoom link\nMeeting ID: 745 723 0989\nPasscode: 526101
URL:https://seasevents.nmsdev7.com/event/be-doctoral-dissertation-defense-magnetic-resonance-imaging-assessment-of-maternal-uteroplacental-hemodynamics-during-pregnancy-eileen-hwuang/
LOCATION:PA
CATEGORIES:Student,Dissertation or Thesis Defense
ORGANIZER;CN="Bioengineering":MAILTO:be@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20210119T150000
DTEND;TZID=America/New_York:20210119T160000
DTSTAMP:20260407T132207
CREATED:20210112T201534Z
LAST-MODIFIED:20210112T201534Z
UID:10006577-1611068400-1611072000@seasevents.nmsdev7.com
SUMMARY:2020 Heilmeier Award Lecture\, Dr. Dan Roth
DESCRIPTION:“It’s Time for Reasoning” \nThis event will take place via Zoom Webinar\, click here to join.\nPassword: 374986 \nThe lecture will be recorded and will be made available for viewing here.
URL:https://seasevents.nmsdev7.com/event/2020-heilmeier-award-and-lecture-rescheduled/
LOCATION:PA
CATEGORIES:Faculty
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20210121T110000
DTEND;TZID=America/New_York:20210121T120000
DTSTAMP:20260407T132207
CREATED:20210120T184306Z
LAST-MODIFIED:20210120T184306Z
UID:10006596-1611226800-1611230400@seasevents.nmsdev7.com
SUMMARY:ODEI Spotlight: Penn Women's Center Open House
DESCRIPTION:
URL:https://seasevents.nmsdev7.com/event/odei-spotlight-penn-womens-center-open-house/
LOCATION:PA
CATEGORIES:Diversity, Equity and Inclusion
ORGANIZER;CN="Office of Diversity%2C Equity and Inclusion":MAILTO:odei@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20210121T150000
DTEND;TZID=America/New_York:20210121T160000
DTSTAMP:20260407T132207
CREATED:20201207T165909Z
LAST-MODIFIED:20201207T165909Z
UID:10006558-1611241200-1611244800@seasevents.nmsdev7.com
SUMMARY:BE Seminar: Deconstructing and Reconstructing Human Tissues (Kelly Stevens)
DESCRIPTION:This seminar will be held virtually on Zoom. Check email for details or contact ksas@seas.upenn.edu. \nAlthough much progress has been made in building artificial human tissues over the past several decades\, replicating complex tissue structure remains an enormous challenge. To overcome this challenge\, our field first needs to create better three-dimensional spatial maps\, or “blueprints” of human tissues and organs. We also need to then understand how these spatial blueprints encode positional processes in tissues. My group is developing new advanced biofabrication technologies to address both of these issues. Here\, I will describe some of our work in both attaining transcriptomic maps as well as in controlling spatiogenetic wiring of human artificial tissues.
URL:https://seasevents.nmsdev7.com/event/be-seminar-kelly-stevens/
LOCATION:PA
CATEGORIES:Seminar
ORGANIZER;CN="Bioengineering":MAILTO:be@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20210121T173000
DTEND;TZID=America/New_York:20210121T183000
DTSTAMP:20260407T132207
CREATED:20210121T202713Z
LAST-MODIFIED:20210121T202713Z
UID:10006601-1611250200-1611253800@seasevents.nmsdev7.com
SUMMARY:ODEI Spotlight: Power of Community: FGLI Program Learning Communities Info-Session
DESCRIPTION:Hosted by Greenfield Intercultural Center
URL:https://seasevents.nmsdev7.com/event/odei-spotlight-power-of-community-fgli-program-learning-communities-info-session/
LOCATION:https://upenn.zoom.us/j/96715197752
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20210122T110000
DTEND;TZID=America/New_York:20210122T123000
DTSTAMP:20260407T132207
CREATED:20210119T175239Z
LAST-MODIFIED:20210119T175239Z
UID:10006582-1611313200-1611318600@seasevents.nmsdev7.com
SUMMARY:GRASP On Robotics: "Biorobotics for Personal Assistance - Translational Research and Opportunities for Human-Centered Developments"
DESCRIPTION:Abstract: The seminar will focus on the opportunities and challenges offered by the digital transformation of healthcare which was accelerated in the COVID-19 Pandemia. In this framework rehabilitation and social robotics can play a fundamental role as enabling technologies for providing innovative therapies and services to patients even at home or in remote environments.\nIn order to achieve a complete transition of research results and products we need efforts to support translational research and evidence-based protocols based on clinical trials and appropriate methodologies.\nRobotics and technologies can provide solutions for digital therapies and for assisting chronic patients in order to improve quality of life and their participation in activities\, meanwhile decreasing the burden for the society\, but biomedical engineers and roboticist should work towards the development of affordable and acceptable solution to reach the population at sustainable cost.\nCritical issues and future perspective will be presented in order to open the discussion with students and attendees. \nZoom Webinar Link: https://upenn.zoom.us/j/92242249880
URL:https://seasevents.nmsdev7.com/event/grasp-on-robotics-biorobotics-for-personal-assistance-translational-research-and-opportunities-for-human-centered-developments/
LOCATION:https://upenn.zoom.us/j/96715197752
CATEGORIES:Seminar
ORGANIZER;CN="General Robotics%2C Automation%2C Sensing and Perception (GRASP) Lab":MAILTO:grasplab@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20210122T140000
DTEND;TZID=America/New_York:20210122T150000
DTSTAMP:20260407T132207
CREATED:20210107T164858Z
LAST-MODIFIED:20210107T164858Z
UID:10006570-1611324000-1611327600@seasevents.nmsdev7.com
SUMMARY:PICS Colloquium: "Machine learning for Fluid Mechanics"
DESCRIPTION:Abstract: Many tasks in fluid mechanics\, such as design optimization and control\, are challenging because fluids are nonlinear and exhibit a large range of scales in both space and time. This range of scales necessitates exceedingly high-dimensional measurements and computational discretization to resolve all relevant features\, resulting in vast data sets and time-intensive computations. Indeed\, fluid dynamics is one of the original big data fields\, and many high-performance computing architectures\, experimental measurement techniques\, and advanced data processing and visualization algorithms were driven by decades of research in fluid mechanics. Machine learning constitutes a growing set of powerful techniques to extract patterns and build models from this data\, complementing the existing theoretical\, numerical\, and experimental efforts in fluid mechanics. In this talk\, we will explore current goals and opportunities for machine learning in fluid mechanics\, and we will highlight a number of recent technical advances. Because fluid dynamics is central to transportation\, health\, and defense systems\, we will emphasize the importance of machine learning solutions that are interpretable\, explainable\, generalizable\, and that respect known physics.
URL:https://seasevents.nmsdev7.com/event/pics-colloquium-machine-learning-for-fluid-mechanics/
LOCATION:PA
CATEGORIES:Colloquium
ORGANIZER;CN="Penn Institute for Computational Science (PICS)":MAILTO:dkparks@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20210125T120000
DTEND;TZID=America/New_York:20210125T130000
DTSTAMP:20260407T132207
CREATED:20210120T163716Z
LAST-MODIFIED:20210120T163716Z
UID:10006583-1611576000-1611579600@seasevents.nmsdev7.com
SUMMARY:PSOC Webinar: "Predicting Interactions Between Cell Collectives and Their Environment" (M. Lisa Manning)
DESCRIPTION:Physical Sciences in Oncology Center PSOC@Penn \nSpring 2021 Webinar Series Mondays at 12:00 noon (EST) \nFor webinar links\, please contact manu@seas.upenn.edu.
URL:https://seasevents.nmsdev7.com/event/psoc-webinar-predicting-interactions-between-cell-collectives-and-their-environment-m-lisa-manning/
LOCATION:PA
CATEGORIES:Seminar
ORGANIZER;CN="PSOC":MAILTO:manu@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20210125T180000
DTEND;TZID=America/New_York:20210125T190000
DTSTAMP:20260407T132207
CREATED:20210120T184655Z
LAST-MODIFIED:20210120T184655Z
UID:10006597-1611597600-1611601200@seasevents.nmsdev7.com
SUMMARY:ODEI Spotlight: Natives at Penn Welcome Program
DESCRIPTION:
URL:https://seasevents.nmsdev7.com/event/odei-spotlight-natives-at-penn-welcome-program/
LOCATION:PA
CATEGORIES:Diversity, Equity and Inclusion
ORGANIZER;CN="Office of Diversity%2C Equity and Inclusion":MAILTO:odei@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20210126T103000
DTEND;TZID=America/New_York:20210126T120000
DTSTAMP:20260407T132207
CREATED:20210119T162048Z
LAST-MODIFIED:20210119T162048Z
UID:10006581-1611657000-1611662400@seasevents.nmsdev7.com
SUMMARY:MEAM Seminar: "Wave Engineering: From Geometry to Fragility"
DESCRIPTION:The elastic properties of materials are determined by a few material constants such as the Young’s modulus. Using super-structures one can effectively change these “constants”. In this way we obtain functionalities such as wave-guiding\, acoustic lensing or programmable failure. I will show how topological band theory\, known from the description of electrons in solids\, provides us with a powerful design-principle for such mechanical metamaterials. Moreover\, mechanical metamaterials offer a powerful platform for the study of fundamentally new phenomena that are hard to observe in other arenas. Here\, I will highlight the first measurement of a quadrupole topological insulator in a silicon based metamaterial\, the implementation of an axial gauge field in an acoustic Weyl system and the measurements of fragile topology.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-wave-engineering-from-geometry-to-fragility/
LOCATION:Zoom – Email MEAM for Link\, peterlit@seas.upenn.edu
CATEGORIES:Seminar
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20210126T160000
DTEND;TZID=America/New_York:20210126T170000
DTSTAMP:20260407T132207
CREATED:20210122T163829Z
LAST-MODIFIED:20210122T163829Z
UID:10006613-1611676800-1611680400@seasevents.nmsdev7.com
SUMMARY:"Integrating Knowledge and the Realities of Fake News"
DESCRIPTION:
URL:https://seasevents.nmsdev7.com/event/integrating-knowledge-and-the-realities-of-fake-news/
LOCATION:https://upenn.zoom.us/j/96715197752
CATEGORIES:Faculty
END:VEVENT
END:VCALENDAR