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ESE Seminar: “Data-driven Decision Making and Estimation in CPS/IoT Networks”

Zoom - Email ESE for Link jbatter@seas.upenn.edu

The modern instantiation of a sensor network is a cyberphysical (CPS) system where CPS subsystems can be interconnected by a shared communication network of limited bandwidth. A common problem in CPS networks is the sensing and communication of spatio-temporal signals. However, there are fundamental differences between estimation (sensing) and communication. For example, the type of […]

ESE Seminar: “New Tools for Better Understanding Social Networks”

Zoom - Email ESE for Link jbatter@seas.upenn.edu

We shall examine in our talk concepts and tools for the analysis of social networks. We shall present in particular YouTube and Twitter. For YouTube, we point at shortcomings in ways to measure audience retention and propose new concepts to better quantify desirable properties. We then present a geo-linguistic analysis of Twitter based on daily […]

PICS Colloquium: “Data-driven model reduction and multiscale modal decomposition for complex chaotic systems”

Many complex nonequilibrium systems, including turbulent flows, are characterized by chaotic dynamics, a large number of degrees of freedom, and hierarchical, multiscale structure in space and time. In two vignettes, we describe some recent work aimed at developing and applying machine learning and data science tools for systems displaying these characteristics. The first vignette builds […]

ESE Seminar: “High-Frequency Power Conversion with Wide-Bandgap Semiconductors”

Zoom - Email ESE for Link jbatter@seas.upenn.edu

With the commercialization of wide-bandgap power semiconductors, multi-MHz switching frequencies are more compelling and critical to meet new applications demanding leaps in power density and efficiency. In the past, studies of these converters reported significant gaps between measured and modeled performance, often attributed to dynamic RDS,ON in GaN HEMTs. In particular, the power semiconductors – […]

ESE Seminar: “Accelerating MRI with Deep Learning”

Zoom - Email ESE for Link jbatter@seas.upenn.edu

Magnetic Resonance Imaging (MRI) can be accelerated by sampling below the Shannon-Nyquist rate via compressed sensing techniques. In this talk, I will consider the problem of optimizing the under-sampling pattern in a data-driven fashion, which has been an open problem for over a decade. For a given sparsity constraint, our method optimizes the under-sampling pattern […]

ESE Grace Hopper Lecture: “Scalable Photonics: An Optimized Approach”

Zoom - Email ESE for Link jbatter@seas.upenn.edu

Classical and quantum photonics with superior properties can be implemented in a variety of old (silicon, silicon nitride) and new (silicon carbide, diamond) photonic materials by combining state of the art optimization and machine learning techniques (photonics inverse design) with new fabrication approaches. In addition to making photonics more robust to errors in fabrication and […]

ESE Seminar: “A New Era of Open-Source System-on-Chip Design”

Zoom - Email ESE for Link jbatter@seas.upenn.edu

Open-source software has been a critical enabler for tremendous innovation in the software ecosystem over the past two decades. Inspired by this success, open-source hardware involves making the high-level description of hardware components freely available for others to study, change, distribute, and ultimately use in fabricating their own hardware components. Unfortunately, open-source hardware has had […]

Immunology/BE Seminar: “Engineering Next-Generation CAR-T Cells for Cancer Immunotherapy” (Yvonne Chen)

This event is part of the Penn Institute for Immunology Colloquium seminar series and is co-hosted by the Department of Bioengineering. This virtual event will be held on Bluejeans. Attend the live seminar via this link. Or download the Bluejeans app and and enter ID: wxbzgity Contact ifiadmin@pennmedicine.upenn.edu with any questions. The adoptive transfer of […]

PICS Colloquium: “Designing energy conversion materials with ab-initio and active machine learning computations of electron-phonon and ion dynamics”

Zoom - email kathom@seas.upenn.edu

Abstract: Accurate atomistic computations of transport and reaction dynamics are an important challenge and an opportunity for designing materials for energy conversion and storage. In the context of thermoelectric materials, we develop new automatable computational methods for describing electron-phonon scattering dynamics. By predicting electrical transport properties, we computationally discovered several new low-cost thermoelectric alloys with […]

ESE Seminar: “Quantum Dot Plasmon Nanolasers”

Zoom - Email ESE for Link jbatter@seas.upenn.edu

Miniaturized light sources are critical for next-generation on-chip photonic devices. Plasmon-based lasers and surface plasmon amplified spontaneous emission of radiation (spasers) have received significant attention since their prediction over a decay over a decade ago. Major advances have included subwavelength footprint sizes, room-temperature operation, far-field emission directionality, and understanding of the lasing mechanism. Notably, one […]