Anomaly Detection in Additive Manufacturing: More Than a 3- Dimensional Problem

Tuesday, March 21, 2023; 10:30 AM - 11:30 AM (ET)
via Zoom
Speaker: Lacie Feller from Altair Engineering

Hosted by: Jaclyn Stimely,  juc52@psu.edu

Exploiting device physics of flash memories for enhancing security and reliability of storage system

Wednesday, March 22, 2023; 3:35 - 4:25 PM
062 Willard Building
Speaker: Biswajit Ray from University of Alabama

Abstract: To address the challenges of exponential data growth, future storage solutions need to provide even higher bit densities, superior performance, greater energy-efficiency, and improved resilience, while guaranteeing security and privacy of end users. These challenges can only be addressed through innovative system design concepts that aptly utilize the physical properties of storage media. While the traditional storage system mainly relies on technology-agnostic algorithmic functions for the ease of portability, such design underutilizes the rich physical properties of the storage media. Thus, state-of-the art storage solutions are inadequate to ensure resilience, energy efficiency, system security and end-user privacy at the edge nodes and extreme environments.

In this talk, I will present a few innovative techniques that will bridge the gap between device and system design approaches to open-up new opportunities for enhancing resilience, security, and privacy of future edge computing/storage applications. I will illustrate how device physics can be used at system-level to derive hardware security primitives for securing NAND flash supply-chain. I will demonstrate our recent attack on recovering deleted information from flash storage using data remanence of memory bits. Finally, I will share my experimental research findings on the radiation effects on the 3D NAND storage and how flash memory can be used for radiation sensing application.

Biography: Biswajit Ray is an Associate Professor of Electrical and Computer Engineering with the University of Alabama in Huntsville (UAH), AL, USA, where he leads Hardware Security and Reliability Laboratory. Dr. Ray received Ph.D. from Purdue University, West Lafayette, IN and then he worked in SanDisk Corporation, Milpitas, California developing 3D NAND Flash memory technology. Dr. Ray holds 20 U.S. issued patents on non-volatile memory systems, published more than 70 research papers in international journals and conferences. Dr. Ray is a recipient of NSF CAREER Award (2022), NSF EPSCoR Research Fellow (2020) and Outstanding Faculty Award (2022) at UAH.

Hosted by: Bethany Illig,  buh196@psu.edu

Gas Turbine Seminar Series —Challenges of Compressor Aerodynamics

Thursday, March 23, 2023; 3:30 p.m.
125 Reber
Speaker: Lisa Brilliant from Discipline Chief for Compression Systems Aerodynamics, Pratt and Whitney

Abstract: A career in compressor aerodynamics provides the opportunity to continuously learn This seminar describes the process and considerations for designing a high performing and reliable compressor Developing new technologies also provides new challenges for the next generation of aircraft engines The seminar will also cover tips on a developing a fulfilling career. Networking session for students and post-docs to follow the seminar.

Bio: Lisa Brilliant earned a bachelor of science in aeronautical engineering at Purdue University and a master of science in mechanical engineering from Rensselaer Polytechnic University. She has spent over 20 years at Pratt and Whitney working in the Compression Systems Aerodynamics Group. She is currently the discipline chief, responsible for Low-Pressure and High-Pressure Compressor designs for both commercial and military programs.

Hosted by: Jacqueline O'Connor,  jxo22@psu.edu

Understanding quantum materials: a computational and theoretical journey

Wednesday, March 29, 2023; 3:35 - 4:25 PM
062 Willard Building
Speaker: Vincent Meunier from Penn State University

Abstract: Due to spatial confinement, low-dimensional materials have attracted significant attention as emerging quantum materials. Thanks to spectacular progress in the development of atomically precise bottom-up synthesis methods, accurate knowledge of atomic content and configurations is now readily available, making it possible to create a strong link between theoretically predicted properties and their experimental observation. Several characterization techniques have been employed to improve the understanding of these materials, to establish their crystal structure, purity, and internal configurations but their interpretation can be tedious without modeling and simulation.

Biography: Vincent Meunier is a Professor of Engineering Science and Mechanics at The Pennsylvania State University where he holds the P.B. Breneman Chair. He has been the Head of the Department since July 2022, after 7 years in a similar role at Rensselaer Polytechnic Institute. Meunier earned his Ph.D. from the University of Namur in Belgium in 1999 and was a senior research and development staff member at Oak Ridge National Laboratory until 2010 when he joined Rensselaer as an Associate Professor with tenure. He has published more than 300 papers in peer-reviewed journal, his h-index is 78, and he is a Fellow of the American Physical Society (APS), the Institute of Physics (IoP), and the American Association for the Advancement of Science (AAAS). Meunier leads the Innovative Computational Material Physics (ICMP) group at Penn State where his research uses theory and computation to examine the atomic-level details of materials. He is the founding and current Editor-in-Chief of the journal Carbon Trends since 2020.

Hosted by: Bethany Illig,  buh196@psu.edu

Mobilizing frequency comb lasers for precision sensing in energy and climate applications

Tuesday, March 28, 2023; 3:35 p.m. - 4:35 p.m.
135 Reber Building
Speaker: Dr Greg Rieker from University of Colorado Boulder

Bio: Greg Rieker is an Associate Professor and Vogel Family Faculty Fellow in Mechanical Engineering at the University of Colorado Boulder. He leads the Precision Laser Diagnostics Laboratory, which aims to understand and improve energy and atmospheric systems through laser-based sensing. Greg earned a BS from the Missouri University of Science and Technology, and MS and PhD degrees from Stanford University. He has affiliations with the National Renewable Energy Laboratory and the National Institute of Standards and Technology. Greg received the NSF CAREER award, the Peter Werle and Hiroshi Tsuji Early Career Scientist Awards, and the Colorado Governor’s Award for High-impact Research.  He is a senior member of the National Academy of Inventors, and co-founder and CTO of LongPath Technologies, Inc.

Abstract: Dr. Rieker's laboratory has spent a decade adapting Nobel prize-winning frequency comb laser technology to address emerging challenges at the forefront of climate, energy, and environment. Frequency combs emit hundreds of thousands of distinct wavelengths of light in exquisitely short, repeatable pulses. They enable measurements of light-matter interaction at high accuracy, precision, and stability across large regions of the infrared spectrum. However, they have traditionally been used in laboratory environments. Dr. Rieker will describe the journey of this technology from a laboratory novelty to a variety of applications, including detecting methane emissions across hundreds of square miles of oil and gas infrastructure, designing hypersonic propulsion systems, and exploring exoplanet atmospheres.

Hosted by: Mechanical Engineering,  lnr108@psu.edu

TBA

Tuesday, April 4, 2023; 10:30 AM - 11:30 AM (ET)
via Zoom
Speaker: Laura Ely from The Barnes Global Advisors

Hosted by: Jaclyn Stimely,  juc52@psu.edu

Ultrasound for Neuromodulation and Wireless Power Transfer

Wednesday, April 5, 2023; 3:35 p.m. – 4:25 p.m.
062 Willard Building
Speaker: Dr. Mehdi Kiani from Penn State

Abstract: The conventional application of ultrasound in the medical field is in tissue imaging. Over the past decade or so, ultrasound has increasingly found interesting applications in neuromodulation of neural activity as well as wireless power transfer to deeply implanted miniature (millimeter scale and smaller) medical devices. Although ultrasound is relatively a new modality for neuromodulation, several research groups across the globe have demonstrated on both animals and humans that ultrasound has a robust and safe effect on neural tissue for both activation and suppression of neural activity. Also, ultrasonic wireless power transfer to millimeter-scale implants have successfully been demonstrated in different applications, such as neural recording and stimulation. Both ultrasound neuromodulation and wireless power transfer applications still require significant amount of research and development in ultrasonic transducers, ultrasonic arrays, CMOS circuits (particularly high-voltage beamforming drivers), biomedical system integration, and in vivo validations. In this seminar, I will present the basics, recent developments, challenges, and applications of ultrasound neuromodulation and ultrasound wireless power transfer to millimeter-scale implants.

Biography: Mehdi Kiani received his Ph.D. degree in Electrical and Computer Engineering from the Georgia Institute of Technology in 2014. He joined the faculty of the School of Electrical Engineering and Computer Science at the Pennsylvania State University in August 2014 where he is currently an Associate Professor. His research interests are in the multidisciplinary areas of analog and power-management integrated circuits, ultrasound-based medical systems, wireless implantable medical devices, and neural interfaces. He was a recipient of the 2020 NSF CAREER Award. He is currently an Associate Editor of the IEEE Transactions on Biomedical Circuits and Systems and IEEE Transactions on Biomedical Engineering. He serves as the technical program committee member of the IEEE International Solid-State Circuits Conference in the IMMD subcommittee.

Hosted by: Bethany Illig,  buh196@psu.edu

TBA

Tuesday, April 11, 2023; 10:30 AM - 11:30 AM (ET)
via Zoom
Speaker: Rui Shi from Penn State

Hosted by: Jaclyn Stimely,  juc52@psu.edu

Ethics Discussion on Responsible Research and Innovation

Wednesday, April 12, 2023; 3:35 p.m. – 4:25 p.m.
062 Willard Building
Speaker: Dr. Laura Cabrera from Penn State

Hosted by: Bethany Illig,  buh196@psu.edu

Strategies for tackling the computational cost of modeling reacting fluids and related problems

Tuesday, April 11, 2023; 3:35 p.m. - 4:35 p.m.
125 Reber Building
Speaker: Dr. Kyle Niemeyer from Oregon State University

Bio: Dr. Kyle Niemeyer is Associate Professor and Welty Faculty Fellow in the School of Mechanical, Industrial, and Manufacturing Engineering at Oregon State University. He received his PhD in Mechanical Engineering from Case Western Reserve University in 2013. Dr. Niemeyer’s research focuses on computational modeling of reacting and non-reacting fluid flows, with a particular interest in numerical methods and high-performance computing. He is also an ardent advocate of open science, and serves as Associate Editor-in-Chief at the Journal of Open Source Software. He is currently working as a AAAS Science and Technology Policy Fellow with the the Industrial Efficiency & Decarbonization Office at the US Department of Energy.

Abstract: Accurate simulations of combustion and reacting fluid flows require complex, multi-step chemical kinetic models for describing the coupled chemical reactions. These models are often large and mathematically stiff, and contribute to the overall high computational expense of simulating practical phenomena relevant to energy, transportation, and aerospace applications. In this talk, I will introduce these issues, summarize the state-of-the-art in methods used to reduce computational costs, and describe some recent contributions from my group on adaptive preconditioning to accelerate implicit integration of stiff chemical kinetics. I will discuss how these developments, and others, are available in the open-source library Cantera. Finally, I will discuss how my group has extended strategies and methods from combustion modeling to other domains such as modeling of neutron transport and ocean biogeochemistry.

Hosted by: Mechanical Engineering,  lnr108@psu.edu