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MEAM Seminar: “’Smart’ Biodegradable Polymer at Nano and Micro Scales for Medical Applications”

The ability to transform medical polymers, commonly used for resorbable surgical sutures, into desired 3D forms/shapes/structures at nano and micro scales with “smart” functions, while sustaining the materials’ excellent biocompatibility and biodegradability, provides significant applications in different biomedical fields, ranging from tissue engineering and controlled drug/vaccine delivery to medical devices. Here, I will present our […]

MEAM Seminar: “Merging Human-Machine Intelligence with Soft Materials Technology”

Whereas human tissues and organs are mostly soft, wet and bioactive; machines are commonly hard, dry and biologically inert. Merging humans, machines and their intelligence is of imminent importance in addressing grand societal challenges in health, sustainability, security, education and joy of living. However, interfacing humans and machines is extremely challenging due to their fundamentally […]

MEAM Seminar: “Saltatorial Locomotion on Terrain Obstacles”

Robots often struggle to move through complicated environments from cluttered living spaces to treetop canopies where humans and animals flit with ease. Jumping is an exciting locomotion mode that can enable small ground-based robots to maneuver around large obstacles and gaps in complicated environments. A high-power jumping robot can rapidly traverse obstacles, but the resulting […]

MEAM Seminar: “Data-driven Physics Discovery and Scale Bridging in Materials”

In this talk I will provide an overview of our recent work in data-driven methods—mainly machine learning—to enhance computational materials physics models. This body of work has proceeded along two main fronts. The first is system inference, where we seek to identify physical mechanisms via their mathematical signatures as differential or algebraic operators. Our approach […]

MEAM Seminar: “Engineering Solutions for Tough Problems in Trauma: From Occlusion Balloons to Decision-Support”

Acute hemorrhage and hemorrhagic shock result in approximately 60,000 annual deaths in the United States. The vast majority of these deaths are in severely injured patients, but experts in trauma care believe many of these deaths can actually be prevented. Efforts focused on injury prevention and pre-emptive intervention have produced some improvements in survival. However, […]

MEAM Seminar: “Real-Time Reduced Order Modeling using Time-Dependent Basis: Applications in Turbulent Flows and Combustion”

The question of “what set of basis functions should be used?” is of fundamental importance to scientific computing. The performance of different choices of basis is assessed primarily by the rate of convergence and robustness. However, when the one-dimensional basis is extended to higher dimensions d, the computational complexity increases exponentially with respect to d. […]

MEAM Seminar: “Operator Inference: Bridging Model Reduction and Scientific Machine Learning”

Model reduction methods have grown from the computational science community, with a focus on reducing high-dimensional models that arise from physics-based modeling, whereas machine learning has grown from the computer science community, with a focus on creating expressive models from black-box data streams. Yet recent years have seen an increased blending of the two perspectives […]

MEAM PhD Thesis Defense: “Delivering Expressive and Personalized Fingertip Tactile Cues”

Wearable haptic devices have seen growing interest in recent years, but providing realistic tactile feedback is not a challenge that is soon to be solved. Daily interactions with physical objects elicit complex sensations at the fingertips. Furthermore, human fingertips exhibit a broad range of physical dimensions and perceptive abilities, adding increased complexity to the task […]

MEAM Seminar: “Aluminum Scandium Nitride Microdevices for Next Generation Nonvolatile Memory and Microelectromechanical Systems”

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 […]

MEAM PHD Thesis Defense: “Control of Dry Adhesion via Mechanics and Structuring”

Dry adhesives that rely on van der Waals forces have a number of applications due to their versatility, reusability, and repeatability. Applications include small-scale pick-and-place and microtransfer printing processes, wearable sensors, climbing/perching robots, and robotic gripping. However, van der Waals forces are macroscopically short-range and are the weakest of the interatomic forces, so careful mechanical […]

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