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    • CIS Seminar: ” Rethinking the hardware-software contract: Enabling practical and general cross-layer optimizations”

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    Wu and Chen Auditorium (Room 101), Levine Hall 3330 Walnut Street, Philadelphia, PA, United States

    Layered abstractions in the computing stack are critical to building complex systems, but the existing *interfaces* between layers restrict what can be done at each level. Enhancing cross-layer interfaces--specifically, the hardware-software interface--is crucial towards addressing two important and hard-to-solve challenges in computer systems today: First, significant effort and expertise are required to write high-performance code […]

    • ESE Seminar: “Quantum Nanophotonics: Engineering Atom-Photon Interactions on a Chip”

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    Berger Auditorium (Room 13), Skirkanich Hall 210 South 33rd Street, Philadelphia, PA, United States

    Abstract: The ability to engineer controllable atom-photon interactions is at the heart of quantum optics and quantum information processing. In this talk, I will introduce a nanophotonic platform for engineering strong atom-photon interactions on a semiconductor chip. I will first discuss an experimental demonstration of a spin-photon quantum transistor , a fundamental building block for […]

    ESE Seminar: “From Nanotech to Living Sensors: Unraveling the Spin Physics of Biosensing at the Nanoscale”

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    Room 337, Towne Building 220 South 33rd Street, Philadelphia, PA, United States

    I am a quantum engineer interested in how quantum physics informs biology at the nanoscale. As a physicist, I have developed high-performance nanosensors that essentially worked due to room-temperature quantum effects in noisy environments. Currently, I am focusing on “living sensors” -- organisms and cells that respond to minute stimuli, routinely outperforming technological probes in […]

    ESE Seminar: “Towards Robotic Manipulation – Understanding the World Through Contact”

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    Berger Auditorium (Room 13), Skirkanich Hall 210 South 33rd Street, Philadelphia, PA, United States

    Why is robotic manipulation so hard? As humans, we are unrivaled in our ability to dexterously manipulate objects and exhibit complex skills seemingly effortlessly. Recent research in cognitive science suggests that this ability is driven by our internal representations of the physical world, built over a life-time of experience. Our predictive ability is complemented by […]

    ESE Seminar: “Ultra-Low-Power Neural Interfaces: from Monitoring to Diagnosis and Therapy”

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    Room 337, Towne Building 220 South 33rd Street, Philadelphia, PA, United States

    Implantable and wearable medical devices are increasingly being developed as alternative therapies for intractable diseases. In particular, undertreated neurological disorders such as epilepsy, migraine, and Alzheimer’s disease are of major public health concern around the world, driving the need to explore such new approaches. Despite significant advances in neural interface systems, the small number of […]

    CIS Seminar: “Towards Embodied Visual Intelligence”

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    Wu and Chen Auditorium (Room 101), Levine Hall 3330 Walnut Street, Philadelphia, PA, United States

    What would it mean for a machine to see the world? Computer vision has recently made great progress on problems such as finding categories of objects and scenes, and poses of people in images. However, studying such tasks in isolated disembodied contexts, divorced from the physical source of their images, is insufficient to build intelligent […]

    CIS Seminar: “Language as a Scaffold for Grounded Intelligence:

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    Wu and Chen Auditorium (Room 101), Levine Hall 3330 Walnut Street, Philadelphia, PA, United States

    Abstract: Natural language can be used to construct rich, compositional descriptions of the world, highlighting for example entities (nouns), events (verbs), and the interactions between them (simple sentences). In this talk, I show how compositional structure around verbs and nouns can be repurposed to build computer vision systems that scale to recognize hundreds of thousands […]

    ESE Seminar: “Software, Architecture, and VLSI Co-Design for Efficient Task-Based Parallel Runtimes”

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    Room 337, Towne Building 220 South 33rd Street, Philadelphia, PA, United States

    Fast-paced changes across the computing stack are creating opportunities for innovation by bridging software, architecture, and VLSI. Cross-cutting research is challenging, but it can expose key insights that would otherwise be hidden by abstractions. In this talk, I will demonstrate a cross-stack approach to improve the efficiency of task-based parallel runtimes, which are important because […]

    BE Seminar: “Microfluidics and Immuno-Materials for Organs-on-a-Chip”

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    Room 337, Towne Building 220 South 33rd Street, Philadelphia, PA, United States

    This presentation will describe microfluidic technologies to conveniently produce life-like pulsatile flows along with applications to study of lung injury, enhancement of in vitro fertilization, and analysis of frequency-dependent cellular responses. The microfluidic technologies range from adaptation of piezo-electric actuator arrays from Braille displays to design of microfluidic circuits that can be designed to switch […]