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Structural design optimization has long played a crucial role in engineering, often with the goal of creating stiff and lightweight structures for aerospace and other applications. However, optimizing structures against failure is also crucial and has been less explored. Failure at interfaces is particularly challenging in design optimization as they involve high local stress concentrations […] |
2 events,
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Bioadhesive technologies are important in a wide range of applications, spanning from wound management to wearable technologies. Forming and controlling tough adhesion on biological tissues has been a long-lasting challenge, necessitating transdisciplinary approaches. In my talk, I will share our recent progress in the design, mechanics, and applications of tough bioadhesives. I will first discuss […]
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Computer security is traditionally about the protection of technology, whereas trust and safety efforts focus on preventing technology abuse from harming people. In this talk, I'll explore the interplay between security and tech abuse, and make the case that trust and safety represents an important frontier for computer security researchers. To do so, I'll draw […] |
5 events,
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ABSTRACT: As deep learning systems improve, their applicability to critical domains is hampered because of a lack of transparency. Post-hoc explanations attempt to address this concern but they provide no guarantee of faithfulness to the model’s computations. Inherently interpretable models are an alternative but such models are often considered to be too simple to perform […]
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PSOC@Penn Seminar, Wednesday Nov 29th ** New Location ** DRL 2N3 2N3 conference/seminar room is in DRL 2nd floor towards end of hallway that parallels Walnut St -Noon - 1.00pm : PSOC talk Speaker: Denise Montell, PhD Duggan Professor and Distinguished Professor, Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara https://www.mcdb.ucsb.edu/people/faculty/denise-montell https://denisemontell.mcdb.ucsb.edu/ Talk : “TBA” […]
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Abstract: Modeling thrombus growth in pathological flows allows evaluation of risk under patient-specific pharmacological, hematological, and hemodynamical conditions. To this end, we have developed a 3D multiscale framework for the prediction of thrombus growth under flow on a spatially resolved surface presenting collagen and tissue factor (TF). The multiscale framework is composed of four coupled […] |
4 events,
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Aluminum Nitride (AlN) is a well-established thin film piezoelectric material. AlN bulk acoustic wave (BAW) radio frequency (RF) filters were one of the key innovations that enabled the 3G and 4G smart phone revolution. Recently, the substitutional doping of scandium (Sc) for aluminum (Al) to form aluminum scandium nitride (AlScN) has been studied to significantly […]
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Power electronics is an essential enabler for efficient energy utilization across many different applications as well for renewable electricity generation. Advances in power semiconductor materials and devices are improving power electronics capabilities, but power electronics also relies heavily on passive electromagnetic components---inductors, transformers, and capacitors. The capabilities of these components are increasingly the bottlenecks limiting […]
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The Department of Bioengineering at the University of Pennsylvania and Dr. Christopher Fang-Yen are pleased to announce the Doctoral Dissertation Defense of John Zihao Li. Title: A robotic system for automated genetics of Caenorhabditis elegans. Date: Thursday, November 30, 2023 Time: 2:00pm Location: Greenberg Lounge, 114 Skirkanich Hall Zoom Option: https://upenn.zoom.us/j/5692069917?pwd=M2tmSnV5QnZxakx5QVhLd0VDR2YzQT09 Meeting ID: 569 206 9917 Passcode: […] |
3 events,
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Abstract: Understanding and controlling polymer-solid interactions is critical for optimizing the catalytic processes involved in polymer upcycling. In this Ph.D. thesis, I explored the intricacies of polymer behavior in nanoporous materials by monitoring the capillary infiltration dynamics of polystyrene (PS) and polyethylene (PE) into random packings of silica nanoparticles. To test the effect of surface […]
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Medical devices, healthcare delivery, and other cyber-physical systems depend on sensors to make safety-critical, automated decisions. My research lab investigates the problem of how to protect cyber-physical systems from adversaries who can maliciously control sensor output by subverting its semiconductor physics. Finding principled, systematic solutions is extremely important to give consumers confidence in innovative medical […]
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This is a hybrid event with in-person attendance in Wu and Chen and virtual attendance on Zoom. ABSTRACT Task and motion planning has application in robotics, animation, virtual prototyping and training, and even for seemingly unrelated tasks such as evaluating architectural plans or simulating protein motions. Surprisingly, sampling-based methods have proven effective on problems from all […] |
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2 events,
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The Department of Bioengineering at the University of Pennsylvania and Dr. Foteini Mourkioti are pleased to announce the Doctoral Dissertation Defense of Nuoying Ma. Title: Piezo1 regulation of muscle stem cell heterogeneity and function and skeletal muscle generation. Date: Monday, December 4, 2023 Time: 9:30AM Location: CRB Austrian Auditorium Zoom link: https://us06web.zoom.us/j/81956870491?pwd=Q3GuaOdgeYeTAdMFzHuYVYsvBR24nb.1 The public is welcome […]
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This talk aims to describe GB responses to absorption of dislocation loops, as part of increasing understanding of component phenomena of radiation damage in materials. The context of radiation damage in materials and the broader importance of understanding related material behavior are summarized, as well as some background on grain boundary structure and defects, and […] |
2 events,
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Soft and compliant robots provide new opportunities for machines that are flexible, adaptable, safe, and robust. Origami-inspired engineering enables custom robots to be designed and fabricated within days, or even hours. These robots are capable of executing a variety of shape-changing and dynamical tasks by taking advantage of their folded shape and programmable mechanics. In […]
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We are at a transformational junction in computing, in the midst of an explosion in capabilities of foundational AI models that may soon match or exceed typical human abilities for a wide variety of cognitive tasks, a milestone often termed Artificial General Intelligence (AGI). Achieving AGI (or even closely approaching it) will transform computing, with […] |
4 events,
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Fall 2023 GRASP Seminar: Shangzhe Wu, Stanford University, “Learning 3D Fauna and Flora in the Wild”
Fall 2023 GRASP Seminar: Shangzhe Wu, Stanford University, “Learning 3D Fauna and Flora in the Wild”
This is a hybrid event with in-person attendance in Raisler Lounge and virtual attendance on Zoom. ABSTRACT Nature presents a captivating confluence of diversity and similarity. In order to make sense of our visual experiences in the world, humans as well as other natural intelligences are innately adept at recognizing the underlying intrinsic patterns, by […]
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ABSTRACT: In recent years, foundation models—large pretrained models that can be adapted for a wide range of tasks—have achieved state-of-the-art performance on a variety of tasks. While the pretrained models are trained on broad data, the adaptation (or fine-tuning) process is often performed on limited data. As a result, the challenges of distribution shift, where […]
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This is a hybrid event with in-person attendance in Levine 307 and virtual attendance on Zoom. ABSTRACT What kind of representation do robots need in order to be as generally capable as humans in handling unseen scenarios? Recent work in vision and vision-language foundation models has become quite good at telling what is in a scene, but they do […] |
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In this talk, I will describe theoretical and computational strategies based on quantum mechanical calculations, aimed at predicting material properties suitable for the development of quantum technologies. Specifically, I will discuss the electronic structure and coherent states of spin defects in two- and three-dimensional semiconductors and insulators, obtained using both classical and near-term quantum computers. |
2 events,
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Formal methods can provide strong correctness guarantees for today's computing systems, but their usage is often restricted to formal methods experts. Formal verification is then bottlenecked on these experts, limiting its effectiveness. This problem is acute in computer architecture, since many architects do not have formal methods expertise. In this talk, I will present recent […]
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This is a hybrid event with in-person attendance in Wu and Chen and virtual attendance on Zoom. ABSTRACT Nature routinely makes smart, complex, yet microscopically tiny machines. But how can humans do it? And can we do it in a way that is easy to design and understand? This talk is about building microscopic robots, those […] |
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Abstract: Polymer nanocomposites (PNCs) represent a diverse class of materials where manipulating design parameters is crucial for tailoring material properties. Of utmost importance for nanocomposites is nanoparticle dispersion, which is affected by the nanoparticle itself as well as the overall polymer melt, providing two design routes. This dissertation explores PNCs through two distinctive systems: (1) […] |
2 events,
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*This seminar will be held in-person in Levine 512 with virtual attendance via Zoom. The seminar will NOT be recorded. ABSTRACT In this talk, I will discuss about building computer vision system that understands everyday human interactions with rich spatial information, in particular hand-object interactions (HOI). Such systems can benefit VR/AR to perceive reality and […]
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Miniature implanted and injected technologies capable of manipulating and recording biological signals promise to improve the way we study biology and the way we diagnose and treat disease; however, to create an effective bioelectronic network we must overcome myriad engineering challenges. In this talk, I will describe how we can leverage unique material properties to […] |
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Abstract coming soon. The lecture and Q&A will be followed by a light reception in Levine Lobby. The Herman P. Schwan Distinguished Lecture is in honor of one of the founding members of the Department of Bioengineering, who emigrated from Germany after World War II and helped create the field of bioengineering in the US. […] |
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The Department of Bioengineering at the University of Pennsylvania and Dr. Rahim Rizi are pleased to announce the Doctoral Dissertation Defense of Faraz Amzajerdian. Title: "Development of Hyperpolarized Xenon-129 Imaging Approaches for Assessing Lung Transplantation". Date: Monday, December 18, 2023 Time: 11:00 AM Location: Donner-Grice Auditorium (HUP Dulles Building 2nd floor) The public is welcome to attend. |
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Rocket propulsion systems push the limits of our understanding and applications of science, engineering, and manufacturing. With every new mission requirement there is need for innovations in the design, modeling and fabrication of components and systems that come together to propel flight vehicles through the earth’s atmosphere as well as the vacuum of space. In […] |
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This is a virtual event with virtual attendance on Zoom. ABSTRACT Foundation models that connect vision and language have recently shown great promise for a wide array of tasks such as text-to-image generation. Significant attention has been devoted towards utilizing the visual representations learned from these powerful vision and language models. In this talk, I […] |
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