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DTSTART;TZID=America/New_York:20240719T150000
DTEND;TZID=America/New_York:20240719T170000
DTSTAMP:20260403T154116
CREATED:20240712T171637Z
LAST-MODIFIED:20240712T171637Z
UID:10008018-1721401200-1721408400@seasevents.nmsdev7.com
SUMMARY:CBE Doctoral Dissertation Defense: "Fabrication of Functional Nanostructured Polymers Based on Thermotropic and Lyotropic Liquid Crystals Derived from Sustainable Resources" (Ruiqi Dong)
DESCRIPTION:Abstract: \nNanostructured materials with interconnected nanoscale structures have garnered significant attention due to the ability to precisely regulate molecular transport by tuning molecular-level properties and offering more functional interfaces for interactions compared to bulk systems. Through self-assembly\, liquid crystal (LC) mesophases offer a route to achieve nanostructured polymers\, a promising alternative to traditional nanostructured inorganic materials and block copolymers. LC mesophases can spontaneously form monodisperse nanostructures and their self-assembly can be precisely controlled to yield well-organized 1D\, 2D\, and 3D periodic nanostructured materials. \nDeveloping functional polymers from sustainable resources is crucial due to the economic and environmental benefits that result. Sustainably derived unsaturated fatty acids are of interest in this regard because their unsaturated carbon bonds allow crosslinking to form stable polymers\, and their carboxylic acid functional groups enable specific surface chemistry and chemical derivatization. \nThis presentation focuses on how useful nanostructured functional materials can be realized from thermotropic and lyotropic liquid crystals derived from unsaturated fatty acids\, and on the properties of the materials thus produced. While prior use of the so-called “molecular templating” approach has produced well-defined nanostructured membranes from thermotropic LCs\, precise tuning of pore size and functionality (e.g. for addressing different applications) remains a challenge. We developed a new approach in which changing the stoichiometry of building blocks of self-assembling supramolecular constructs led to a robust handle for controlling pore shape\, and pore size with sub-nm resolution. The approach used thermotropic LCs based on citronellol\, a plant-derived molecule. To balance selectivity and permeability\, we developed highly selective and permeable thin nanofiltration membranes based on lyotropic LCs from conjugated linoleic acid. This reproducible process can be applied to various systems for creating larger-scale nanostructured thin films. Additionally\, we explored LC materials for ion and electron transport\, presenting for the first time a nanostructured lyotropic LC membrane for cation conduction derived from conjugated linoleic acid\, which shows improved electron transport performance compared to single-ion polymeric electrolyte materials.
URL:https://seasevents.nmsdev7.com/event/cbe-doctoral-dissertation-defense-fabrication-of-functional-nanostructured-polymers-based-on-thermotropic-and-lyotropic-liquid-crystals-derived-from-sustainable-resources-ruiqi-dong/
LOCATION:Towne 337
CATEGORIES:Doctoral,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:20240722T100000
DTEND;TZID=America/New_York:20240722T120000
DTSTAMP:20260403T154116
CREATED:20240712T174714Z
LAST-MODIFIED:20240712T174714Z
UID:10008019-1721642400-1721649600@seasevents.nmsdev7.com
SUMMARY:CBE Doctoral Dissertation Defense: "MEMS-Based Electrochemical Power Sources for Extended Operational Duration of Micro Unmanned Vehicles” (Yanghang Huang)
DESCRIPTION:Abstract: \nMicro unmanned vehicles\, defined as 25-gram to 5-kg in weight\, are increasingly being utilized in applications such as search and rescue or agricultural monitoring. Such vehicles are typically powered with lithium-ion batteries. However\, vehicle operational efficiency and capability are often compromised by the limited energy density of these batteries\, resulting in short operational duration. This dissertation explores high-energy chemistries beyond lithium-ion batteries\, including metal-air batteries and fuel cells\, as power sources to significantly extend the operational duration of both the kilogram-scale and gram-scale micro unmanned vehicles. \nThree different power source chemistries are proposed and investigated for different types of micro unmanned vehicles: gram-scale micro unmanned-ground-vehicles; gram-scale micro unmanned-aerial-vehicles; and kilogram-scale micro unmanned-aerial-vehicles. \n1. Gram-Scale Unmanned-Ground-Vehicles: Micro zinc-air batteries are developed for extended operation durations for gram-scale unmanned-ground-vehicles. The lean electrolyte operation of the battery enhances its gravimetric performance; however\, this approach suffers from rapid electrolyte degradation\, limiting battery performance. The study identifies carbonation and slow zincate decomposition as the main degradation mechanisms. Based on these findings\, a discharge energy model is developed\, successfully predicting the discharge performance of the micro zinc-air battery. Insights from the degradation study are used to enhance the electrochemical performance of micro zinc-air batteries\, demonstrating their potential to significantly extend the operation duration of gram-scale unmanned ground vehicles. \n2. Gram-Scale Micro Unmanned-Aerial-Vehicles: Due to the higher power requirements of gram-scale unmanned aerial vehicles\, micro aluminum-air batteries are developed as onboard power sources. The cell design and cell packaging of the battery are optimized to achieve an energy density of 320 Wh/kg above a power density of 500 W/kg\, far surpassing the performance of equivalent commercial lithium-ion batteries. A 3D-printed small-scale quadrotor platform is used to evaluate flight duration\, with the micro aluminum-air battery delivering 13.1 minutes of flight time compared to the 4.5 minutes of the commercial micro lithium-ion battery. This demonstration also marks the first successful untethered flight of a gram-scale micro unmanned-aerial-vehicle powered by air batteries. Additionally\, cathode fabrication techniques are explored\, utilizing a Ag-based cathode developed through microfabrication techniques to maximize the electrochemically active surface area. This cathode can support the necessary power density for the small-scale quadrotor while offering a potential cost reduction of 1/1500th of that of conventional cathodes. This work highlights the potential of micro aluminum-air batteries to serve as efficient\, cost-effective\, and long-lasting power sources for gram-scale unmanned-aerial-vehicles. \n3. Kilogram-Scale Micro Unmanned-Aerial-Vehicles: For kilogram-scale micro unmanned-aerial-vehicles\, solid oxide fuel cells are investigated. A flight duration model is first developed\, showing that the solid oxide fuel cell is promising for significantly extending the flight duration. To meet the power requirement of the kilogram-scale micro unmanned-aerial-vehicle\, a microfabrication process for thin-film solid oxide fuel cells is developed\, aiming to increase its power performance. While preliminary results confirm the successful fabrication of the thin-film cell\, scaling the technology to power the kilogram-scale micro unmanned-aerial-vehicle remains a significant challenge. \nThis work demonstrates that high-energy-density electrochemical power sources with simultaneous high-power-density for micro unmanned vehicles are feasible. Such unconventional high-energy power sources\, including zinc-air batteries\, aluminum-air batteries\, and solid oxide fuel cells\, show significant potential to substantially extend operational durations of multiple micro unmanned vehicle types.
URL:https://seasevents.nmsdev7.com/event/cbe-doctoral-dissertation-defense-mems-based-electrochemical-power-sources-for-extended-operational-duration-of-micro-unmanned-vehicles-yanghang-huang/
LOCATION:Room 221\, Singh Center for Nanotechnology\, 3205 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Doctoral,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:20240722T103000
DTEND;TZID=America/New_York:20240722T113000
DTSTAMP:20260403T154116
CREATED:20240709T184707Z
LAST-MODIFIED:20240709T184707Z
UID:10008016-1721644200-1721647800@seasevents.nmsdev7.com
SUMMARY:MEAM Ph.D. Thesis Defense: "Multi-Robot Coordination and Cooperation via Graph-Based Computation"
DESCRIPTION:Multi-robot coordination and cooperation are critical behaviors that improve team performance and enable new tasks in application areas like autonomous construction\, agriculture\, and extended operation in large unknown regions. This dissertation examines these behaviors in the context of the multi-robot resource allocation problem\, where robots must be allocated to regions of demand. In particular\, we are interested in uncertainty-tolerant approaches that apply to large multi-robot teams. We introduce graph-based computation via Graph Neural Networks applied to the distributed multi-agent coverage control problem\, which boasts improved performance and scalability by leveraging learned inter-agent communication strategies. We also introduce a graph-based modeling and planning approach to multi-robot task allocation in complex multi-task missions where coordination and cooperation are explicitly required. We expand this approach into an online setting that re-plans around task failures and unexpected observations. We demonstrate empirically that these modeling approaches and algorithms bring performance improvements that further the state of the art by leveraging the fundamental graph structure present in some multi-robot problems.
URL:https://seasevents.nmsdev7.com/event/meam-ph-d-thesis-defense-multi-robot-coordination-and-cooperation-via-graph-based-computation/
LOCATION:Levine 307\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
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:20240722T130000
DTEND;TZID=America/New_York:20240722T150000
DTSTAMP:20260403T154116
CREATED:20240722T125810Z
LAST-MODIFIED:20240722T125810Z
UID:10008029-1721653200-1721660400@seasevents.nmsdev7.com
SUMMARY:ESE PhD Thesis Defense: "Aluminum Scandium Nitride Ultra-Wideband Resonator and Filter Systems"
DESCRIPTION:Aluminum scandium nitride (AlScN)\, a ternary alloy by doping scandium into aluminum nitride (AlN)\, has circumspectly gained recognition through the last decade as one of the promised materials in forming the next generation radio frequency (RF) filters and resonators – core components in the wireless telecommunication systems that interconnect today’s world. This\, coupled with the recent discovery of its ferroelectricity\, has led to unexpected possibilities and prospects. Woefully\, while Sc-alloying has gifted AlScN remarkable properties\, it took great effort to make these properties come into realization. Namely\, AlScN is difficult to deposit\, hard to etch\, and arduous to be made useful. In this dissertation\, techniques and methodologies were developed to handle these specific challenges\, and approaches for new actuation principles were proposed and validated.  Utilizing an AlN seed and a gradient AlScN seed layer\, the sputtering deposition of high quality AlScN films on commercial substrates was demonstrated. Through exploring the wet and dry etching methods\, a variety of etching rates\, selectivity and sidewall profile were calibrated and therefore made selectable. Via the implementation of an AlN buffer layer\, a surface acoustic wave (SAW) resonator built directly on a low-cost silicon substrate with a high electromechanical coupling coefficient (kt2) is shown. Furthermore\, by adopting and adapting a method known as apodization\, Lamb wave resonators (LWRs) and filters with record-breaking figure of merits (FOM) exhibiting spurious free operation characteristics were achieved. Second harmonic generation (SHG)\, a powerful tool in laser optics for the purpose of frequency doubling was examined and the ability of periodic poling to a domain width as small as 220 nm with tailored 50 % duty cycle has been attained\, allowing quasi phase matching (QPM) for the generation of deep ultraviolet (DUV) in photonic integrated circuits. Finally\, by leveraging this ability\, a brand-new actuation mechanism for periodically poled LWR (PPLWR) was introduced and investigated. Acoustic resonances were realized at all target frequencies\, with the highest one providing double-digit kt2 when working in the cross-sectional Lamé mode. With all roadblocks removed\, such devices working in the X-band or above have great potential of serving the goal of frequency selection in the coming 6 G era.
URL:https://seasevents.nmsdev7.com/event/ese-phd-thesis-defense-aluminum-scandium-nitride-ultra-wideband-resonator-and-filter-systems/
LOCATION:Room 35\, Singh Center for Nanotechnology\, 3205 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Dissertation or Thesis Defense
ORGANIZER;CN="Electrical and Systems Engineering":MAILTO:eseevents@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240722T133000
DTEND;TZID=America/New_York:20240722T143000
DTSTAMP:20260403T154116
CREATED:20240709T183405Z
LAST-MODIFIED:20240709T183405Z
UID:10008015-1721655000-1721658600@seasevents.nmsdev7.com
SUMMARY:MEAM MSE Thesis Defense: "Algorithmic Design of an Origami Squirrel-Inspired Paw for Quadrupedal Locomotion in Bar-like Terrains"
DESCRIPTION:The Dynamic Origami Quadruped (DOQ)\, an origami quadrupedal robot\, has been primarily utilized for hopping and walking on flat ground. However\, adapting it walking on bar-like terrains presents significant challenges. Inspired by the Squirrel-inspired Rapid Tenodesis (SQRT) foot which is capable of passively grasping onto curved surfaces during perching\, this thesis explores the integration of the DOQ and SQRT designed through origami fabrication techniques. Origami fabrication can offer a parametric approach to robot design\, enabling researchers to rapidly prototype by inputting serval constraint parameters. On the other hand\, the inherent compliance of origami bodies further enhances the passivity of the foot\, reducing the restoring time during takeoff from the bar. The origami SQRT demonstrates promising performance\, showcasing its potential in closely grasping bars and assisting the DOQ in maintaining stability.
URL:https://seasevents.nmsdev7.com/event/meam-mse-thesis-defense-algorithmic-design-of-an-origami-squirrel-inspired-paw-for-quadrupedal-locomotion-in-bar-like-terrains/
LOCATION:Levine 307\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Dissertation or Thesis Defense,Master's
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240722T150000
DTEND;TZID=America/New_York:20240722T170000
DTSTAMP:20260403T154116
CREATED:20240712T182623Z
LAST-MODIFIED:20240712T182623Z
UID:10008020-1721660400-1721667600@seasevents.nmsdev7.com
SUMMARY:ESE Ph.D. Thesis Defense: "Integrating graphene Hall sensors with co-designed silicon circuits for high-throughput magnetic biosensing"
DESCRIPTION:The limitations of silicon electronic devices increasingly constrain the performance of silicon integrated circuits (ICs) and their use in new applications. Next-generation devices with exceptional performance and new functionalities have been realized using two-dimensional materials such as graphene. For example\, graphene Hall-effect sensors (GHSs) greatly outperform commercial silicon magnetic-field sensors and could significantly improve the performance of sensor arrays used in magnetic imagers and biosensing. However\, the 2D nature of graphene leads to undesirable effects such as device heterogeneity\, offset\, and noise which limit the practical appeal of GHSs compared to silicon devices with poorer performance but higher reliability. \nThis thesis investigates several techniques drawn from device\, circuit\, and system-level perspectives to address the existing limitations of graphene Hall sensors and enable their more widespread usage. A central theme of this work is combining graphene Hall sensors with silicon integrated circuits and using the standout aspects of silicon IC technology – reliability\, high speed\, and scalability – to mitigate the undesirable properties of GHSs while retaining their advantages. This thesis also explores the applications of GHSs for in-flow detection of magnetically labeled cells and other biological particles which can be used to analyze blood samples to study the progression of cancer and infectious disease with minimal sample processing.
URL:https://seasevents.nmsdev7.com/event/ese-ph-d-thesis-defense-integrating-graphene-hall-sensors-with-co-designed-silicon-circuits-for-high-throughput-magnetic-biosensing/
LOCATION:Auditorium\, LRSM Building\, 3231 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Dissertation or Thesis Defense
ORGANIZER;CN="Electrical and Systems Engineering":MAILTO:eseevents@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240722T150000
DTEND;TZID=America/New_York:20240722T170000
DTSTAMP:20260403T154116
CREATED:20240718T144611Z
LAST-MODIFIED:20240718T144611Z
UID:10008024-1721660400-1721667600@seasevents.nmsdev7.com
SUMMARY:BE Doctoral Dissertation Defense: "Nanoparticle-based RNA therapeutic strategies for treating multiple myeloma" (Christian Figueroa-Espada)
DESCRIPTION:The Department of Bioengineering at the University of Pennsylvania and Dr. Michael J. Mitchell are pleased to announce the Doctoral Dissertation Defense of Christian Figueroa-Espada.\n\nTitle: Nanoparticle-based RNA therapeutic strategies for treating multiple myeloma\n\nDate: Monday\, July 22\, 2024\nLocation: Heilmeier Hall\, Towne Rm 100\nTime: 3:00 pm\n\nZoom information: https://upenn.zoom.us/j/94229801039?pwd=UzhVdTZ4L1VncXJTeUkwN0NWaXlmdz09\n Meeting ID: 942 2980 1039\n Passcode: 097271\n\nThe public is welcome to attend!
URL:https://seasevents.nmsdev7.com/event/be-doctoral-dissertation-defense-nanoparticle-based-rna-therapeutic-strategies-for-treating-multiple-myeloma-christian-figueroa-espada/
LOCATION:Heilmeier Hall (Room 100)\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Doctoral,Graduate,Student,Dissertation or Thesis Defense
ORGANIZER;CN="Bioengineering":MAILTO:be@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240723T101500
DTEND;TZID=America/New_York:20240723T111500
DTSTAMP:20260403T154116
CREATED:20240709T181937Z
LAST-MODIFIED:20240709T181937Z
UID:10008014-1721729700-1721733300@seasevents.nmsdev7.com
SUMMARY:MEAM Seminar: "Bio-inspired Architected Materials/Structures with Enhanced Failure Characteristics"
DESCRIPTION:Structural failure is a critically important design consideration in many engineering applications. Nature provides a number of interesting examples of lightweight structural features that exhibit outstanding failure characteristics. Recent progress in additive manufacturing has facilitated precise control over geometric features\, allowing for the implementation of bio-inspired structural designs on a layer-by-layer basis. In this talk\, we will introduce the role of geometry in the failure characteristics of bio-inspired architected materials/structures. We will first present the use of bamboo-inspired void patterns to geometrically improve the failure properties of structures made from brittle polymers under flexural bending. Then\, we will extend this study into a material system with tunable plasticity to study the effect of plasticity on the fracture behavior of different architected voids. Lastly\, we will showcase the concept of employing simulated “swarms” of bio-inspired agents\, such as those mimicking the behavior of bees and ants\, to create novel designs of architected materials/structures that exhibit enhanced fracture properties\, including improved energy dissipation to failure and damage tolerance\, specifically under uniaxial tension.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-bio-inspired-architected-materials-structures-with-enhanced-failure-characteristics/
LOCATION:Heilmeier Hall (Room 100)\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar,Doctoral
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240723T103000
DTEND;TZID=America/New_York:20240723T113000
DTSTAMP:20260403T154116
CREATED:20240718T170602Z
LAST-MODIFIED:20240718T170602Z
UID:10008025-1721730600-1721734200@seasevents.nmsdev7.com
SUMMARY:MEAM/MSE Special Seminar: "Starfish-Inspired Tubefeet for Temporary Underwater Adhesion"
DESCRIPTION:Temporary and switchable underwater adhesion plays an important role in robotic underwater locomotion and transportation. The physical features of the suction cups of octopuses have been mimicked\, where the vacuum chamber formed by the deformation of these cups enable strong adhesion. However\, the works mainly focused on the strength of the underwater adhesion. For the underwater locomotion and transportation of objects in aqueous environment\, rapid and autonomous detachment following strong adhesion should be accomplished. To address this challenge\, we turned to the starfish and its tube feet for inspiration. Starfish possess hundreds of tube feet beneath their arms\, each comprising a thin cylindrical tube. At the end of these tube feet lies the cupped pad\, which resembles a conically shaped frustum with recessed dimples that widen outward. During movement\, when a starfish steps on a surface\, the foot pushes the mouth downward\, causing it to spread along the underlying surface and secure attachment. Moreover\, when digging\, starfish employ their tube feet to carry sand grains. Taking inspiration from starfish tube feet\, three strategies have been proposed to achieve temporary adhesion. Firstly\, high adhesion hysteresis\, characterized by a high ratio of normal to shear adhesion force\, is observed when the aspect ratio is high. This implies that detaching the tube foot from an object becomes easier by simply tilting it. Secondly\, autonomous detachment is facilitated by utilizing stimuli-responsive hydrogels within the supple mouth of the tube foot. When exposed to stimuli such as heat or light\, the hydrogel undergoes shrinkage\, rapidly reducing the adhesion force. Lastly\, immediate detachment can be achieved by integrating the tube foot with an external syringe. By manipulating the syringe\, the water-filled cylinder of the tube foot can apply pressure swiftly\, leading to rapid detachment. These strategies can provide efficient and versatile solutions for temporary adhesion and detachment in underwater locomotion and transportation.
URL:https://seasevents.nmsdev7.com/event/meam-mse-special-seminar-starfish-inspired-tubefeet-for-temporary-underwater-adhesion/
LOCATION:Towne 227 (MEAM Conference Room)\, 220 S. 33rd 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:20240724T100000
DTEND;TZID=America/New_York:20240724T120000
DTSTAMP:20260403T154116
CREATED:20240722T123736Z
LAST-MODIFIED:20240722T123736Z
UID:10008028-1721815200-1721822400@seasevents.nmsdev7.com
SUMMARY:BE Doctoral Dissertation Defense: "Remote control of cell function using temperature as an input" (William Benman)
DESCRIPTION:The Department of BIoengineering at the University of Pennsylvania and Dr. Lukasz Bugaj proudly announce the Doctoral Dissertation Defense of WIlliam Benman.\n\nTitle: Remote control of cell function using temperature as an input\nAdvisor: Lukasz Bugaj\nDate: Wednesday\, July 24\, 2024\nTime: 10:00AM EST\nLocation: Skirkanich Hall\, Berger Auditorium\, Rm. 013\n\nZoom option:\nhttps://upenn.zoom.us/j/91967695550 \nThe public is welcome to attend.
URL:https://seasevents.nmsdev7.com/event/be-doctoral-dissertation-defense-remote-control-of-cell-function-using-temperature-as-an-input-william-benman/
LOCATION:Berger Auditorium (Room 13)\, Skirkanich Hall\, 210 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Doctoral,Graduate,Student,Dissertation or Thesis Defense
ORGANIZER;CN="Bioengineering":MAILTO:be@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240725T150000
DTEND;TZID=America/New_York:20240725T170000
DTSTAMP:20260403T154116
CREATED:20240722T122930Z
LAST-MODIFIED:20240722T122930Z
UID:10008027-1721919600-1721926800@seasevents.nmsdev7.com
SUMMARY:BE & Pathology Joint Seminar: "Extracellular vesicles and microglia as biomarker and therapeutic intervention of Alzheimer's disease and related disorders" (Tsuneya Ikezu\, Mayo Clinic)
DESCRIPTION:
URL:https://seasevents.nmsdev7.com/event/be-pathology-joint-seminar-extracellular-vesicles-and-microglia-as-biomarker-and-therapeutic-intervention-of-alzheimers-disease-and-related-disorders-tsuneya-ikezu-mayo-clinic/
LOCATION:Raisler Lounge (Room 225)\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
ORGANIZER;CN="Bioengineering":MAILTO:be@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240730T101500
DTEND;TZID=America/New_York:20240730T111500
DTSTAMP:20260403T154116
CREATED:20240717T153107Z
LAST-MODIFIED:20240717T153107Z
UID:10008023-1722334500-1722338100@seasevents.nmsdev7.com
SUMMARY:MEAM Seminar: "Dynamic Bipedal Walking on Unstructured Terrain through Real-Time Perception and Control"
DESCRIPTION:Bipedal robots have seen significant interest from academia and industry for their potential to efficiently traverse unstructured environments\, such as disaster zones\, industrial infrastructure\, and cluttered homes. Autonomous bipedal walking in the wild remains an unsolved challenge\, however\, partially due to the difficulty of perceiving and reacting to obstacles in real-time\, while maintaining balance. Existing walking control approaches for rough terrain decompose the problem into separate footstep planning and motion control tasks\, limiting their usefulness for dynamic\, underactuated robots. We first present a hierarchical walking controller which can generate dynamic walking motions over stepping-stone like terrains by jointly optimizing over foothold choices and motion plans. This controller is formulated as a Mixed-Integer Quadratic Program\, and can be solved at 50-200Hz\, depending on the complexity of the terrain. We then propose a perception system for generating a convex polygon representation of the terrain in real-time from robot-mounted depth cameras. The controller and perception system are demonstrated on the underactuated bipedal robot Cassie.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-dynamic-bipedal-walking-on-unstructured-terrain-through-real-time-perception-and-control/
LOCATION:Room 337\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar,Doctoral
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240805T133000
DTEND;TZID=America/New_York:20240805T140000
DTSTAMP:20260403T154116
CREATED:20240802T174416Z
LAST-MODIFIED:20240802T174416Z
UID:10008035-1722864600-1722866400@seasevents.nmsdev7.com
SUMMARY:Summer 2024 ROBO Master's Thesis Presentation - Gabriel Bennett\, "Midair Refueling of Electronic Drones: A First Step Towards Solving the Energy Limitations of the Modern Drone"
DESCRIPTION:This is a virtual event which will take place via Zoom. \n1:30pm Gabriel Bennett \n“Midair Refueling of Electronic Drones: A First Step Towards Solving the Energy Limitations of the Modern Drone” \nAdvised by Dr. Mark Yim
URL:https://seasevents.nmsdev7.com/event/summer-2024-robo-masters-thesis-presentation-gabriel-bennett/
LOCATION:Zoom
CATEGORIES:Master's
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:20240806T101500
DTEND;TZID=America/New_York:20240806T111500
DTSTAMP:20260403T154116
CREATED:20240731T165705Z
LAST-MODIFIED:20240731T165705Z
UID:10008032-1722939300-1722942900@seasevents.nmsdev7.com
SUMMARY:MEAM Seminar: "Soft Pneumatic Force Application through Membrane Design and Stiffness Control"
DESCRIPTION:Modern robotic platforms are designed for precision\, but their cost and rigidity make them impractical for many at-home physical human-robot interaction (pHRI) applications. Soft pneumatic actuators (SPA) have potential as safe and affordable means of providing comfortable force application for use in pHRI\, but lack shape planning and control during contact. In this seminar\, we will discuss electroadhesive clutches as a novel strain limiter for soft membranes and their applications in real-time programming of inflation trajectory and force response. We outline our force-pressure characterization for a heterogeneous SPA membrane design\, the use of autonomous experimentation for design parameter exploration\, and our vision for applications in pHRI for the elderly or those with significant medical ailments.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-soft-pneumatic-force-application-through-membrane-design-and-stiffness-control/
LOCATION:Towne 337
CATEGORIES:Seminar,Doctoral
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240813T101500
DTEND;TZID=America/New_York:20240813T111500
DTSTAMP:20260403T154116
CREATED:20240801T185343Z
LAST-MODIFIED:20240801T185343Z
UID:10008034-1723544100-1723547700@seasevents.nmsdev7.com
SUMMARY:MEAM Seminar: "Towards Understanding Tactile Sensing Across the Robot Manipulation Stack"
DESCRIPTION:Humans are exceptionally skilled at manipulating a diverse range of objects\, apparent from the order of magnitude difference in sizes\, weight distributions\, stiffnesses\, and geometries of items we use on a daily basis. For robots to seamlessly integrate into a world centered around human dexterity\, they must also possess comparable manipulation abilities. My research aims to address this challenge by exploring and understanding how tactile sensing can contribute to robot manipulation across the stack in sensor design\, perception\, and control. First\, we leverage a selectively transmissive soft membrane for a novel tactile and proximity sensor that offers uncompromised spatial resolution in both modalities. Then\, we explore how to fuse the tactile and proximity modalities to extract contact patches from extreme deformations of the soft sensing surface\, extending functionality to new deformation regimes. Finally\, I will conclude with our work on an RL-tractable tactile skin model that enables zero-shot sim2real transfer of ternary shear and binary normal forces\, which we use to develop an RL policy for dexterous in-hand translation.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-towards-understanding-tactile-sensing-across-the-robot-manipulation-stack/
LOCATION:Towne 337
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240814T101500
DTEND;TZID=America/New_York:20240814T111500
DTSTAMP:20260403T154116
CREATED:20240801T131847Z
LAST-MODIFIED:20240801T131847Z
UID:10008033-1723630500-1723634100@seasevents.nmsdev7.com
SUMMARY:MEAM Seminar: "Exploring Self-assembly of 2D Materials: Insights from Graphene Auto-kirigami"
DESCRIPTION:Two dimensional (2D) materials with atomic-scale thickness like graphene exhibit substantial in-plane stiffness and strength while maintaining significant out-of-plane flexibility. This enables the assembly of graphene into complex multilayer and even three-dimensional (3D) structures through a unique combination of self-folding\, self-tearing\, and nearly frictionless self-propagation\, all driven by interfacial energy. We call this phenomenon ‘graphene auto-kirigami’. \nAuto-kirigami provides an innovative approach to potentially sculpting 2D materials into intricate micro/nanostructures. However\, significant challenges exist in understanding and controlling it. To address this\, we have probed graphene auto-kirigami with atomic force microscopy (AFM) experiments\, continuum mechanics models\, and molecular dynamics (MD) simulations. We will present results toward our goal of developing a complete\, atomistically-informed physical description of auto-kirigami formation in graphene-based systems.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-exploring-self-assembly-of-2d-materials-insights-from-graphene-auto-kirigami/
LOCATION:Towne 319\, 220 S. 33rd Street\, Philadelphia\, 19104\, United States
CATEGORIES:Seminar,Doctoral
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240816T130000
DTEND;TZID=America/New_York:20240816T150000
DTSTAMP:20260403T154116
CREATED:20240717T143942Z
LAST-MODIFIED:20240717T143942Z
UID:10008022-1723813200-1723820400@seasevents.nmsdev7.com
SUMMARY:BE Doctoral Dissertation Defense: "Addressing the genome structure-function relationship in neural activation and neurological disorders" (Harshini Chandrashekar)
DESCRIPTION:The Department of Bioengineering at the University of Pennsylvania and Dr. Jennifer Cremins are pleased to announce the Doctoral Dissertation Defense of Harshini Chandrashekar.\n\n\nTitle: Addressing the genome structure-function relationship in neural activation and neurological disorders\nDate: Friday\, August 16\, 2024\nTime: 1-3pm\nLocation: Clinical Research Building (CRB) Austrian Auditorium\nZoom link: https://upenn.zoom.us/j/3641987868\n\n\nThe public is welcome to attend.
URL:https://seasevents.nmsdev7.com/event/be-doctoral-dissertation-defense-addressing-the-genome-structure-function-relationship-in-neural-activation-and-neurological-disorders-harshini-chandrashekar/
LOCATION:CRB Auditorium\, 415 Curie Boulevard\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Doctoral,Graduate,Student,Dissertation or Thesis Defense
ORGANIZER;CN="Bioengineering":MAILTO:be@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240820T101500
DTEND;TZID=America/New_York:20240820T111500
DTSTAMP:20260403T154116
CREATED:20240805T203626Z
LAST-MODIFIED:20240805T203626Z
UID:10008036-1724148900-1724152500@seasevents.nmsdev7.com
SUMMARY:MEAM Seminar: "Impulse-Induced Dynamic Transitions in Flexible Mechanical Metamaterials: Harnessing Nonlinear Wave Dynamics for Advanced Engineering Applications"
DESCRIPTION:Mechanical metamaterials are artificially designed structures that offer unique properties like negative Poisson’s ratio\, tunable stiffness\, and advanced thermal characteristics. While the static properties of mechanical metamaterials have been widely studied\, their nonlinear dynamics stemming from the structural and geometric designs remain largely unexplored\, which could pave ways for innovative design and optimization for novel applications related to deployable structures\, reconfigurable robots\, etc.. is to expand the fundamental understanding of flexible mechanical metamaterials and their potentials in solving engineering challenges through the combination of analytical\, numerical\, and experimental investigation. This seminar shows current findings on nonlinear dynamical behaviors\, including soliton collisions leading to phase transitions\, the preservation and disruption of topological modes under nonlinear loadings\, and the application of flexible principles in designing efficient robotic systems with enhanced motion control capabilities.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-impulse-induced-dynamic-transitions-in-flexible-mechanical-metamaterials-harnessing-nonlinear-wave-dynamics-for-advanced-engineering-applications/
LOCATION:Room 337\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar,Doctoral
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240821T101500
DTEND;TZID=America/New_York:20240821T111500
DTSTAMP:20260403T154116
CREATED:20240805T210241Z
LAST-MODIFIED:20240805T210241Z
UID:10008037-1724235300-1724238900@seasevents.nmsdev7.com
SUMMARY:MEAM Seminar: "Programmable Strain-responsive Biopolymer Networks Adapt to High Magnitudes of Mechanical Loading"
DESCRIPTION:Biopolymer hydrogel materials typically exhibit relatively low range of programmable modulus less than 100 kPa\, which limits their biomedical applications\, such as in articular cartilage and synthetic joints\, where tissues are cyclically loaded with high magnitudes of peak stress on the order of 10MPa\, and applications in soft robotics require moduli across orders of magnitude from 1 kPa to 100 MPa. Here\, we achieved a wide range of mechanical properties with double network biopolymer hydrogels that can sustain over 10-100 MPa peak stress under repeated axial unconfined compression. Previous systems use double-network to enhance hydrogel’s toughness and strength. Here\, cryogelation generates a foam network that undergoes a rarefied to densified phase transition\, which is reinforced with a second dissipative network to yield highly tunable properties across orders of magnitude of applied stress. The foam network is formed by cryogelation of a covalently crosslinked collagen-glutaraldehyde (GA) biopolymer network that can sustain repeated loading through phase transition of its porous foam structure. Interpenetrating ionically-crosslinked alginate biopolymers tune the final modulus to make the hydrogel programmable in a high range of mechanical performance. This dual-network composite hydrogel system also exhibits reversible properties\, achieved by chelating ions to reduce ionic crosslinks or restoring crosslinks by supplying additional ions. Together\, these data demonstrate a robust hydrogel composite system adaptable to wide ranges of mechanical loading.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-programmable-strain-responsive-biopolymer-networks-adapt-to-high-magnitudes-of-mechanical-loading/
LOCATION:Towne 337
CATEGORIES:Seminar,Doctoral
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240821T130000
DTEND;TZID=America/New_York:20240821T150000
DTSTAMP:20260403T154116
CREATED:20240812T182810Z
LAST-MODIFIED:20240812T182810Z
UID:10008040-1724245200-1724252400@seasevents.nmsdev7.com
SUMMARY:BE Doctoral Dissertation Defense: "Engineering Magnetic Devices and Nanoparticle Platforms to Improve Drug Accumulation and Penetration in Tumors for Enhanced Cancer Treatment" (Bian Jang)
DESCRIPTION:The Department of Bioengineering at the University of Pennsylvania and Dr. Andrew Tsourkas proudly announce the Doctoral Dissertation Defense of Bian Jang.\n\nTitle: Engineering Magnetic Devices and Nanoparticle Platforms to Improve Drug Accumulation and Penetration in Tumors for Enhanced Cancer Treatment\nAdvisor: Andrew Tsourkas\nDate: Wednesday\, August 21\, 2024\nTime: 1:00PM EST\nLocation: 337 Towne Building\n\nZoom: https://upenn.zoom.us/j/8156254789?pwd=2aflyvaeEZrKkC9YmHAJ8BSupHuiZg.1&omn=98884739223\n\nThe public is welcome to attend.
URL:https://seasevents.nmsdev7.com/event/be-doctoral-dissertation-defense-engineering-magnetic-devices-and-nanoparticle-platforms-to-improve-drug-accumulation-and-penetration-in-tumors-for-enhanced-bian-jang/
LOCATION:Towne 337
CATEGORIES:Doctoral,Graduate,Student,Dissertation or Thesis Defense
ORGANIZER;CN="Bioengineering":MAILTO:be@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240822T090000
DTEND;TZID=America/New_York:20240822T100000
DTSTAMP:20260403T154116
CREATED:20240808T132116Z
LAST-MODIFIED:20240808T132116Z
UID:10008038-1724317200-1724320800@seasevents.nmsdev7.com
SUMMARY:MEAM Ph.D. Thesis Defense: "Enhancing Photophoretic Levitation using Three-dimensional Structures for Flight in the Mesosphere and on Mars"
DESCRIPTION:Current propulsion and flight mechanisms limit atmospheric observations. The mesosphere is too dense for satellites and too thin for typical planes and balloons\, with similar conditions found in the Martian atmosphere\, especially at Olympus Mons. Photophoresis\, the movement of gas molecules due to light\, has been studied for microscale objects like aerosols and operates optimally within the pressure ranges of these regions. When applied to ultrathin\, ultralight macroscale objects\, levitation occurs. These objects\, such as plates and disks with microstructures\, absorb visible light and heat up. The resulting temperature changes pump gas molecules through microchannels and cause a recoil force from molecules striking the hotter surface. These combined effects produce enough force to levitate centimeter-scale objects with no moving parts and only light. We designed photophoretic aircraft with 3D hollow geometries to pump ambient air through sidewalls\, creating a high-speed jet. Simulations and parametric studies optimized these geometries\, showing potential for kilogram-scale payloads for meter-scale aircraft 50 to 80 km above Earth’s surface. This included a novel theoretical framework based on previous 2D plates but expanded to 3D structures. We also fabricated millimeter-scale versions using microfabrication methods to experimentally investigate levitation in vacuum chamber experiments. Furthermore\, we developed a scalable manufacturing method for a different photophoretic aircraft with enhanced temperature gradient-induced levitation of 3D geometries made of a Mylar sandwich composite alongside a new experimental method to measure and compare photophoretic forces of solid versus porous objects. Finally\, we explored solar buoyancy\, through theory and experimental developments\, to transport the structures to the mesosphere and discussed their potential applications for carrying sensors to measure GPS and state properties in situ. Applications of this work include atmospheric science missions in the mesosphere and on Mars in collaboration with NASA.
URL:https://seasevents.nmsdev7.com/event/meam-ph-d-thesis-defense-enhancing-photophoretic-levitation-using-three-dimensional-structures-for-flight-in-the-mesosphere-and-on-mars/
LOCATION:Towne 319\, 220 S. 33rd Street\, Philadelphia\, 19104\, United States
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:20240822T100000
DTEND;TZID=America/New_York:20240822T120000
DTSTAMP:20260403T154116
CREATED:20240730T150219Z
LAST-MODIFIED:20240730T150219Z
UID:10008031-1724320800-1724328000@seasevents.nmsdev7.com
SUMMARY:BE Doctoral Dissertation Defense: "Right ventricular remodeling in tetralogy of Fallot" (Beth Thompson)
DESCRIPTION:The Department of Bioengineering at the University of Pennsylvania and Dr. Walter Witschey proudly announce the Doctoral Dissertation Defense of Beth Thompson.\n\nTitle: Right ventricular remodeling in tetralogy of Fallot\nAdvisor: Walter Witschey\nDate: Thursday\, August 22\, 2024\nTime: 10:00AM EST\nLocation: Class of ’62 Auditorium\, John Morgan Building\n\nZoom:\n\nhttps://upenn.zoom.us/j/99590672633?pwd=0kNQLS3kz65nZgab4WJrAWAyOB0UEN.1\nMeeting ID: 995 9067 2633\nPasscode: 192482 \n\nThe public is welcome to attend.
URL:https://seasevents.nmsdev7.com/event/be-doctoral-dissertation-defense-right-ventricular-remodeling-in-tetralogy-of-fallot-beth-thompson/
LOCATION:Class of 62 Auditorium\, John Morgan Building\, 3620 Hamilton Walk\, Philadelphia\, PA\, 19104
CATEGORIES:Doctoral,Graduate,Student,Dissertation or Thesis Defense
ORGANIZER;CN="Bioengineering":MAILTO:be@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240828T090000
DTEND;TZID=America/New_York:20240828T110000
DTSTAMP:20260403T154116
CREATED:20240816T144409Z
LAST-MODIFIED:20240816T144409Z
UID:10008045-1724835600-1724842800@seasevents.nmsdev7.com
SUMMARY:CBE Doctoral Dissertation Defense: "High-Pressure Reactions on Metals and Metal Oxides in Mesoporous Silica” (Ching-Yu Wang)
DESCRIPTION:Abstract: \nSBA-15\, a type of mesoporous silica\, is an attractive support for heterogeneous catalysts due to its high surface area\, one-dimensional uniform pore structure\, and high thermal stability. However\, modifying SBA-15 with metal and metal oxide using conventional wetness incipient impregnation is challenging. In this thesis\, Atomic Layer Deposition (ALD) was used to prepare catalysts on SBA-15. Through multiple cycles of ALD\, various metal oxides can be uniformly deposited in the pores of SBA-15 as thin films\, while maintaining the high surface area and well-defined mesoporous structure. Using vapor-phase infiltration\, i.e.\, one ALD cycle\, a wide range of metals can be efficiently incorporated into the SBA-15 pores\, exhibiting high metal loadings and metal nanoparticle sizes of 3 to 4 nm. \nThe catalytic properties of the SBA-15-supported catalysts were investigated for dehydrogenation of cycloalkanes and hydrodeoxygenation of m-cresol. While Pt/SBA-15 deactivated rapidly at low pressures due to coking\, it remained stable for long periods when the pressure was above certain critical values. These critical values depended on the pore size and structure of the support and the reaction temperature. It was demonstrated that hydrodeoxygenation of m-cresol\, a model compound for phenolics\, can be carried out over WOx-Pt/SBA-15 in a stable manner using alkanes as H2 carriers. Additionally\, cycloalkane dehydrogenation over Pt/SBA-15 was found to be stable at high pressure\, thereby providing high endothermicity. \nFinally\, the growth of metal oxides and their interactions with SBA-15 were studied. It was found that the surface silanol groups of SBA-15 were critical for stabilizing WO3 in the mesopores. CeO2 films supported by SBA-15 were more reducible than their bulk counterparts or ceria supported by Al2O3 due to a reaction between ceria and silica.
URL:https://seasevents.nmsdev7.com/event/cbe-doctoral-dissertation-defense-high-pressure-reactions-on-metals-and-metal-oxides-in-mesoporous-silica-ching-yu-wang/
LOCATION:Raisler Lounge (Room 225)\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Doctoral,Student,Dissertation or Thesis Defense
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240828T153000
DTEND;TZID=America/New_York:20240828T163000
DTSTAMP:20260403T154116
CREATED:20240816T192839Z
LAST-MODIFIED:20240816T192839Z
UID:10008046-1724859000-1724862600@seasevents.nmsdev7.com
SUMMARY:CBE Seminar: "Self-assembly Models for Crystal Growth and Phase Transitions" (Julia Dshemuchadse\, Cornell University)
DESCRIPTION:Abstract: \nHow can we make new materials and better understand how their underlying structures form? The direct observation of crystal growth and transitions remains supremely challenging\, but gaining insight into these fundamental processes is central to our quest of creating materials in a rational and targeted way\, connecting structure to functionality. We build self-assembly models\, study how they react to perturbations on the particle and system levels\, and investigate their impact on crystal growth and transformation pathways. We use simple coarse-grained models to gain systematic insights into the phenomena that lead to the crystallization of complex crystal structures\, partial disorder\, or magic-size assemblies\, allowing us to derive the essential principles that govern the formation of materials’ structures. Our goal is to use these insights to find ways to tailor crystallization pathways and to create new functional materials. Our work promises to establish new pathways to materials design through simulations\, which explicitly incorporate and explore phase transformation kinetics.
URL:https://seasevents.nmsdev7.com/event/cbe-seminar-self-assembly-models-for-crystal-growth-and-phase-transitions-julia-dshemuchadse-cornell-university/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
ORGANIZER;CN="Chemical and Biomolecular Engineering":MAILTO:cbemail@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240903T101500
DTEND;TZID=America/New_York:20240903T111500
DTSTAMP:20260403T154116
CREATED:20240815T151622Z
LAST-MODIFIED:20240815T151622Z
UID:10008043-1725358500-1725362100@seasevents.nmsdev7.com
SUMMARY:MEAM Seminar: "CRISPR-Programmed Microfluidic Devices for DNA Detection\, Computing and Digital Display"
DESCRIPTION:CRISPR is a gene editing technique that allows researchers to quickly and precisely edit genome sequences. Beyond gene editing\, CRISPR-Cas systems can be repurposed as a programmable platform for other various applications. In this talk\, I will introduce how we use CRISPR technology to program microfluidic devices for DNA detection\, DNA computing and digital display. First\, I will present our advancements in investigating simple\, sensitive and specific CRISPR assay technologies for DNA detection. Second\, I will discuss how to integrate CRISPR assay with microfluidics technology to develop affordable and programmable microfluidic diagnostic systems for infectious disease detection and cancer diagnostics. Third\, I will describe how we program CRISPR and DNA to develop paper-based microfluidic devices for DNA computing and digital display. Overall\, by combining the programmability of CRISPR with the integration capability of microfluidics\, we can develop next-generation tools not only for biomedical diagnostics\, but also for information technology.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-crispr-programmed-microfluidic-devices-for-dna-detection-computing-and-data-search/
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:20240904T120000
DTEND;TZID=America/New_York:20240904T131500
DTSTAMP:20260403T154116
CREATED:20240709T172748Z
LAST-MODIFIED:20240709T172748Z
UID:10008007-1725451200-1725455700@seasevents.nmsdev7.com
SUMMARY:ASSET Seminar: "Bridging the Gap Between Learning and Programming"
DESCRIPTION:Abstract:  \nFor decades\, we have built software by writing code\, but in recent years machine learning has emerged as a new approach to create software with features that would be impossible to code by hand. However\, the use of learning to build software risks ignoring some of the lessons we have learned for how to build computer systems that are robust and maintainable. In this talk\, I will describe a new class of techniques we have developed under the term “neurosymbolic programming” which aim to support learning while maintaining some of the benefits of traditional programming\, such as modularity\, interpretability\, reusability and incremental development\, and will show some of the benefits these techniques can offer in domains ranging from robotics to computational biology. \nZoom Link (if unable to attend in-person): https://upenn.zoom.us/j/93017587225
URL:https://seasevents.nmsdev7.com/event/asset-seminar-armando-solar-lezama-massachusetts-institute-of-technology/
LOCATION:Raisler Lounge (Room 225)\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240904T153000
DTEND;TZID=America/New_York:20240904T163000
DTSTAMP:20260403T154116
CREATED:20240816T193457Z
LAST-MODIFIED:20240816T193457Z
UID:10008048-1725463800-1725467400@seasevents.nmsdev7.com
SUMMARY:CBE Seminar: "Pressure-induced Nanoparticle Assembly" (Hongyou Fan\, Sandia National Laboratories)
DESCRIPTION:Abstract: \nPrecise control of structural parameters through nanoscale engineering to improve optical and electronic properties of functional nanomaterials continuously remains an outstanding challenge. Previous work on nanoparticle synthesis and assembly has been conducted largely through solution chemistry at ambient pressure and relies on specific chemical or physical interactions such as van der Waals interactions\, dipole-dipole interactions\, chemical reactions\, ligand-receptor interactions\, etc. In this presentation\, I will introduce a new pressure-induced assembly and fabrication method that uses mechanical compressive force applied to nanoparticles to induce structural phase transition and to consolidate new nanomaterials with precisely controlled structures and tunable properties. By manipulating nanoparticle coupling through external pressure\, instead of through solution chemistry\, a reversible change in their assemblies and properties can be achieved and demonstrated. In addition\, over a certain threshold\, the external pressure will force these nanoparticles into contact\, thereby allowing the formation and consolidation of one- to three-dimensional nanostructures. Through pressure induced nanoparticle assembly\, materials engineering and synthesis become remarkably flexible without relying on traditional crystallization process where atoms/ions are locked in a specific crystal structure. Therefore\, morphology or architecture can be readily tuned to produce desirable properties for practical applications. (SAND2024-00611O) Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia\, LLC.\, a wholly owned subsidiary of Honeywell International\, Inc.\, for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525.
URL:https://seasevents.nmsdev7.com/event/cbe-seminar-pressure-induced-nanoparticle-assembly-hongyou-fan-sandia-national-laboratories/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
ORGANIZER;CN="Chemical and Biomolecular Engineering":MAILTO:cbemail@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240905T101500
DTEND;TZID=America/New_York:20240905T111500
DTSTAMP:20260403T154116
CREATED:20240823T210256Z
LAST-MODIFIED:20240823T210256Z
UID:10008072-1725531300-1725534900@seasevents.nmsdev7.com
SUMMARY:MEAM Ph.D. Thesis Defense: "Controlling Contact Transitions for Dynamic Robots"
DESCRIPTION:Legged robots\, robotic manipulators\, and their combined embodiment as humanoid robots have received considerable attention across both academia and industry. However\, with few notable exceptions\, state-of-the-art demonstrations are significantly less dynamic than their biological counterparts. A considerable challenge towards achieving more dynamic robots lies within controlling contact interactions with their environment. Legged robots undergoing impacts experience near-instantaneous changes in their velocities\, making accurate state estimation difficult and resulting in controller sensitivity to even small deviations in impact timing. Contact transitions are also challenging for robot manipulation due to the combinatorial complexity of planning across multiple contact modes. Frictional contact that often arises from dynamic manipulation further increases this planning complexity due to the introduction of additional contact modes and increased degree of underactuation. \nTo address these limitations\, this thesis proposes algorithmic and systems contributions to gracefully handle contact transitions for dynamic robots. First\, we identify that uncertainties from impact events enter the system dynamics in a structured manner. We leverage this structure to propose a general modification to model-based feedback controllers\, enabling selective robustness to impact uncertainty while maximally retaining control authority. We validate our approach on custom dynamic jumping and running controllers on the 3D bipedal robot\, Cassie. \nThen\, we examine dexterous dynamic manipulation through complex non-prehensile tasks that require considering the full spectrum of hybrid contact modes. We leverage recent advancements in contact-implicit MPC to generate contact-rich motion plans in real-time. We demonstrate\, through careful integration of the MPC and low-level tracking controller\, how contact-implicit MPC can be adapted to dynamic tasks. We perform two distinct tasks using the same model\, notably without common aids such as reference trajectories or motion primitives\, highlighting the generality of our approach.
URL:https://seasevents.nmsdev7.com/event/meam-ph-d-thesis-defense-controlling-contact-transitions-for-dynamic-robots/
LOCATION:Towne 311\, 220 S. 33rd Street\, Philadelphia\, 19104\, United States
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:20240905T103000
DTEND;TZID=America/New_York:20240905T120000
DTSTAMP:20260403T154116
CREATED:20240830T004549Z
LAST-MODIFIED:20240830T004549Z
UID:10008080-1725532200-1725537600@seasevents.nmsdev7.com
SUMMARY:MSE Seminar: "Working Safely in the Lab: Navigating Common Laboratory Hazards in MSE Research"
DESCRIPTION:EHRS staff will discuss how to work safely in the lab while navigating the changing landscape of materials science and engineering research. \nThe talk will also cover;\n– Standard orientation topics (physical/bio/chem safety\, waste disposal\, Workday training\, etc.)\n– The new methylene chloride regulations and how they will affect EHRS and Penn operations.\n– Safe use of tube furnaces\, especially in combination with flammable gases.\n– Hazards associated with old chemical inventory.\n– EHRS’s new incident reporting form.\n– Sustainability initiatives at Penn
URL:https://seasevents.nmsdev7.com/event/mse-seminar-working-safely-in-the-lab-navigating-common-laboratory-hazards-in-mse-research-2/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
ORGANIZER;CN="Materials Science and Engineering":MAILTO:johnruss@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240905T120000
DTEND;TZID=America/New_York:20240905T140000
DTSTAMP:20260403T154116
CREATED:20240820T122117Z
LAST-MODIFIED:20240820T122117Z
UID:10008057-1725537600-1725544800@seasevents.nmsdev7.com
SUMMARY:BE Doctoral Dissertation Defense: "Developing Translational Multimodal Neurotechnology Across Multiple Scales Using Novel Materials And Approaches" (Sneha Shankar)
DESCRIPTION:The Department of BIoengineering and Dr. Flavia Vitale proudly announce the Doctoral Dissertation Defense of Sneha Shankar.  Details are as follows:\n\nTitle: “Developing Translational Multimodal Neurotechnology Across Multiple Scales Using Novel Materials And Approaches”\nDate: September 5th\, 2024\nTime: 12pm \nLocation: Glandt Forum\, Singh Center for Nanotechnology\nAdvisor: Flavia Vitale\nZoom option: https://upenn.zoom.us/j/97587304173?pwd=RgyJPz5nLAQMVwc0zR6uBUBbun0d5J.1\n\nThe public is welcome to attend.
URL:https://seasevents.nmsdev7.com/event/be-doctoral-dissertation-defense-developing-translational-multimodal-neurotechnology-across-multiple-scales-using-novel-materials-and-approaches-sneha-shankar/
LOCATION:Glandt Forum\, Singh Center for Nanotechnology\, 3205 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Doctoral,Graduate,Student,Dissertation or Thesis Defense
ORGANIZER;CN="Bioengineering":MAILTO:be@seas.upenn.edu
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