By mirroring the success of biological systems, legged robots have the potential to be successful in almost every terrestrial environment. While legged machines have made significant advancements in the past 20 years, there still exists a considerable gap between what they can achieve and the abilities of animals. In this talk I’ll discuss some of […]
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Current computing systems are mainly constructed on the von Neumann architecture, where data needs to be transferred to a processing unit from memory components. The latency associated with accessing data from the memory units is a key performance bottleneck for a range of data-intensive applications in the convergence of big data and AI. Several solutions […] |
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With the ever-increasing production of portable electronics, internet of things devices, electric vehicles, unmanned aerial vehicles, and other autonomous robotic systems comes an increasing demand for reliable, long-lasting, portable power sources. Portable electronic systems are often limited by the energy density of the batteries that power them, and these batteries typically take up a large […] |
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In this thesis, ab initio methods including density functional theory are used in concert with molecular dynamics, enhanced sampling techniques, and microkinetic modeling to study oxide materials as applied to electrochemical ammonia synthesis, carbon mineralization, and the oxygen evolution reaction. Special attention is directed towards discussion of model selection and its relationship to the experimental system. […] |
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The capability to predict high-Reynolds-number turbulent flows is essential for many natural and engineering flows such as external aerodynamics (wind turbines, aircraft wings), hydrodynamics (the hull of marine vehicles) and atmospheric boundary-layer flow over complex landscapes and cityscapes. However, due to extreme disparity of scales present in high-Reynolds-number wall-bounded turbulent flows, any attempt to simulate […] |
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Many fluid problems of interest, such as turbulent flow over an airplane or transport processes in geophysical flows, contain wall-bounded regions that form boundary layers. Oftentimes, both numerical and experimental studies are simplified by using smooth surfaces. This simplification has allowed us to gain a greater understanding of near-wall processes for flows of engineering interest, […] |
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This is a hybrid event with in-person attendance in Wu and Chen and virtual attendance via Zoom. This week's presenter will be in-person as well. ABSTRACT The Robotics Design Lab was founded in 2012 at the University of Queensland, Australia, and considers the holistic design of robots as a system. With the RDL Pauline […]
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Personalized medicine requires the identification of disease-causing agents prior to prescribing therapy. Currently, molecular detection requires shipping bio samples to centralized laboratories. The time delay between sample collection and test results prevents health care givers from making timely, informed decisions. Furthermore, there is a shortage in centralized laboratories and trained technicians in resource poor settings […] |
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Materials with electroprogrammable stiffness and adhesion can enhance the performance of robotic systems, including prosthetics, medical devices, wearables, exoskeletons, and grippers. However, achieving large changes in stiffness and adhesive forces in real time is an ongoing challenge. Electroadhesive clutches can rapidly adhere high stiffness elements, although their low force capacities, high activation voltages, and inability […] |
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Over the next decade, the biggest generator of data is expected to be devices that sense and control the physical world. The explosion of real-time data that is emerging from the physical world requires a rapprochement of areas such as machine learning, control theory, and optimization. While control theory has been firmly rooted in the […]
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“A White Neighbor, a Black Surgeon, and a Mormon Computer Scientist Walk into a Bar…” As we recognize Juneteenth, a holiday that brings awareness to what journalist Corey Mitchell calls “…a complex understanding of the nation’s past”, we also need to understand how many of our neighbors, staff, and faculty—even those born in the last […] |
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The Department of Bioengineering at the University of Pennsylvania and Dr. Paul Yushkevich are pleased to announce the Doctoral Dissertation Defense of Mengjin Dong. Title: Detecting and Localizing Progressive Changes In Longitudinal MRI of the Hippocampal Region in Alzheimer’s Disease Date: Thursday, June […] |
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The Earth’s mesosphere plays a crucial role in weather forecasting, environmental conservation, and planetary exploration. However, traditional unmanned aerial vehicles (UAVs) such as balloons or spacecraft face significant challenges when attempting to access this layer. Balloons and airplanes struggle due to the low pressure, while satellites encounter high aerodynamic drag. To overcome these limitations, we […] |
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Novel high-surface-area catalysts were synthesized for selected industrial chemical reactions, conducted in heterogeneous reactors and electrochemical reactors. Atomic layer deposition (ALD) was used to synthesize highly dispersed metal catalysts and to deposit uniform oxide thin films on porous supports. The interaction between Cu catalyst and its oxide support was studied for the water-gas-shift […] |
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Planning fast and autonomous robotic motion in unstructured, cluttered environments remains a core challenge of the robotics community. The robot’s motion must be agile and dynamic, operating near the limit of its physical capabilities, to reach its goal location as quickly as possible. Fast motion in turn creates a need for fast plan computation over […]
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With the global population projected to reach 9.1 billion people by 2050 there is a need to develop highly efficient agricultural systems that maximize crop yield. Precision Agriculture (PA) systems enabled by the Internet of Things (IoT) offer a potential solution through improvements in labor, resource, and time efficiency to improve agricultural output. PA systems […] |
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Imperfect but useful dynamical models have enabled significant progress in planning and controlling robotic locomotion and manipulation. Traditionally, these models have been physics-based, with accuracy relying upon manual calibration only feasible in laboratory environments. As robotics expands into complex real-world applications, models must instead be automatically fit to limited data. One major challenge is modeling […] |
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Numerous responsive materials have been developed in recent decades and applied toward engineering challenges ranging from medicine to robotics. For example, polydimethylsiloxane (PDMS), hydrogels, shape memory polymers (SMPs), liquid crystal elastomers (LCEs), and many other materials can be engineered to respond to many environmental stimuli, such as non-polar solvents, humidity, heat, light, magnetic fields, and […] |
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The Department of Bioengineering at the University of Pennsylvania and Dr. Riccardo Gottardi are pleased to announce the Doctoral Dissertation Defense of Paul Gehret. Title: “Decellularized Cartilage for Airway Repair”. Date: June 26, 2023 Time: 2:00 PM Location: Wu and Chen Auditorium in Levine Hall The public is welcome to attend. Join Zoom Meeting https://upenn.zoom.us/j/7937445851?pwd=RUJYZFNhOWVyRmM5QzZUb3FoaDRxZz09 […] |
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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 talk explores the utility of graph-based modeling and computational frameworks to improve the coordination and cooperation of multi-robot teams in a variety of problems. I […] |
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A modular self-reconfigurable robot (MSRR) is a set of robotic building blocks that can be connected together in different ways. By rearranging these connections, the robot can adapt its shape to address a wider variety of tasks than a robot with a fixed morphology. However, traditional modular architectures fail to scale up to address large-scale […] |
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The Department of Bioengineering at the University of Pennsylvania and Dr. Louis Soslowsky are pleased to announce the Doctoral Dissertation Defense of Joseph Newton. Title: Novel Applications of In Vivo Assays, Microdialysis and Photoacoustic Ultrasound, Throughout Rat Achilles Tendon Injury and Healing Date and Time: June 29th, 10:00am EST Location: CRB Austrian Auditorium Zoom: https://upenn.zoom.us/j/93571878070?pwd=c2NIN1A5Zmw2M0lZSnQ0d3hmMG52UT09 The […] |
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