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DTSTART;TZID=America/Chicago:20251007T160000
DTEND;TZID=America/Chicago:20251007T170000
DTSTAMP:20250911T194819Z
CREATED:20250827T163717Z
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SUMMARY:CBE Seminar Series: Phil Christopher
DESCRIPTION:Phil ChristopherUniversity of California\, Santa BarbaraSanta Barbara\, CA \n\n\n\n\n\n\n\nCatalyst deactivation: Mechanisms\, stability by design\, and pathways to machine-learned models\n\n\n\nSupported metal catalysts are used ubiquitously in industrial applications for energy conversion\, material/chemical manufacturing\, and pollution mitigation. Fundamental research often focuses on elucidating structure-function relationships that connect active site structures and compositions to their reactivities. Relationships that connect active site structure to stability are less well developed. Such insights require appreciation of dynamic structure changes\, longer term experimentation\, and reactors characterized by gradients in temperatures and chemical potentials. I will highlight two recent research efforts studying the deactivation of supported metal catalysts. First\, I will discuss the deactivation of supported coinage (Cu and Ag) metal catalysts which occurs via sintering due to the low melting points of these metals. We found that the addition of < 1:100 mol fraction of certain dopant metals results in drastic stability enhancement under methanol synthesis reaction conditions A model was developed that proposes the role of dopants as local stabilizers of highly mobile metal atoms. Secondly\, I will discuss the deactivation of Rh/TiO2 catalysts under CO2 hydrogenation conditions. Mechanistic studies suggest that deactivation occurs through competing mechanisms as a function of catalyst composition and reaction conditions\, motivating the use experimentally trained machine learnt models to predict deactivation behavior. A round robin style experimental campaign was performed across 4 institutions to generate data for this effort. I will discuss our learnings in terms of the drivers of catalyst deactivation and experimental uncertainty in studies of catalyst deactivation.
URL:https://live-uw-engineering.pantheonsite.io/event/cbe-seminar-series-phil-christopher/
LOCATION:WI
CATEGORIES:Chemical & Biological Engineering,Seminar
ATTACH;FMTTYPE=image/jpeg:https://live-uw-engineering.pantheonsite.io/wp-content/uploads/2023/02/2023_CBE-sem-series-web-header-scaled.webp
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DTSTART;TZID=America/Chicago:20251006T120000
DTEND;TZID=America/Chicago:20251006T130000
DTSTAMP:20250929T204758Z
CREATED:20250827T170456Z
LAST-MODIFIED:20250929T204758Z
UID:10001293-1759752000-1759755600@live-uw-engineering.pantheonsite.io
SUMMARY:BME Seminar Series: From Campus to Career: Maximizing Experiences for Industry Readiness
DESCRIPTION:Abstract: Universities are organized primarily by departments\, but industry is organized by function: research\, design\, regulatory\, quality assurance\, sales\, marketing. Having some knowledge of this structure ahead of time will help you select and approach classes in ways more likely to have you end up where you want to be.Fortunately\, the UW-Madison also has many opportunities that let you “try on” an industrial career ahead of time. These opportunities vary in duration from hours to months. As you start to invest in these channels\, you will be more likely to benefit from the serendipity that the breath of expertise present at UW-Madison naturally provides.This seminar will feature three individuals in a conversational format who will discuss how they used these channels to supplement their coursework and research to build industrial success. While all three of these individuals eventually earned PhDs\, the topics and approaches discussed are equally applicable to MS students. \n\n\n\nSpeakers (L to R):Professor Chris Brace\, PhD; UW BME Vice Chair; Co-founder\, NeuWave MedicalJustin Koepsel\, PhD\, MBA; UW BME MS’08\, PhD’12; Senior Director of Commercial Operations at Catalent BiologicsTom Lilieholm\, PhD’24; Co-founder and Director of Neuroimaging ImgGyd \n\n\n\n\n\n\n\nPrint PDF
URL:https://live-uw-engineering.pantheonsite.io/event/bme-seminar-series-2/
LOCATION:1003 (Tong Auditorium) Engineering Centers Building\, 1550 Engineering Drive\, Madison\, WI\, 53706\, United States
CATEGORIES:Biomedical Engineering,Seminar
ATTACH;FMTTYPE=image/jpeg:https://live-uw-engineering.pantheonsite.io/wp-content/uploads/2024/11/Seminar-Graphic-Fall2024-1.avif
ORGANIZER;CN="Department of Biomedical Engineering":MAILTO:bmehelp@bme.wisc.edu
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DTSTART;TZID=America/Chicago:20251003T120500
DTEND;TZID=America/Chicago:20251003T125500
DTSTAMP:20250922T141453Z
CREATED:20250825T194253Z
LAST-MODIFIED:20250922T141453Z
UID:10001275-1759493100-1759496100@live-uw-engineering.pantheonsite.io
SUMMARY:Mechanics Seminar: Tanmoy Chatterjee
DESCRIPTION:The Mechanics Seminar Series is a weekly seminar given by campus and visiting speakers on topics across the spectrum of mechanics research (solids\, fluids\, and dynamics). Tanmoy Chatterjee is the Lead Research Engineer in Aerodynamics at GE Research Inc.  \n\n\n\nPresentation Title: From Turbulence to Turbines: Exascale CFD in Wind Energy \n\n\n\nAbstract: Wind energy is rapidly expanding in scale\, with individual turbines now exceeding 100-meter blades and offshore farms stretching tens of kilometers. Yet\, predicting their performance and more critically reliability remains a grand challenge of fluid mechanics\, spanning phenomena from centimeter-scale blade boundary layers to kilometer-scale atmospheric flows. This talk explores how exascale computational fluid dynamics (CFD) is transforming our ability to model and design wind energy systems across these scales. I will discuss recent advances in high-fidelity\, turbulent fluid–structure interaction simulations\, and their integration with the Department of Energy’s ExaWind project. Specific examples will include simulations of coastal low-level jets (LLJs) driving wind farm variability\, and the development of data-driven dynamic stall models for next-generation turbine blades. Together\, these efforts highlight how exascale CFD is reshaping our understanding of turbulence\, turbines\, and wind farms — and accelerating innovation in the renewable energy industry. \n\n\n\nBio: Tanmoy Chatterjee is a Lead Research Engineer in Advanced Simulations and Methods at the GE Vernova Advanced Research Center. Prior to joining GE\, he was a postdoctoral researcher at Argonne National Laboratory\, where he developed exascale CFD models using spectral codes for internal combustion engine simulations. He earned his Ph.D. in Mechanical Engineering from Arizona State University\, focusing on turbulence–turbine interactions in large wind farms. \n\n\n\nAt GE Vernova\, Dr. Chatterjee has led the development of high-fidelity exascale CFD–FSI simulations of wind farms and turbine blade-level turbulence\, as well as data-driven reduced-order models for blade vibrations in the regimes of stall-induced and vortex-induced vibrations (SIV/VIV). He has also contributed to advanced controller strategies for mitigating turbine loads under unconventional wind conditions. In addition to his technical contributions\, Dr. Chatterjee has successfully led several GE-internal and government-funded research initiatives\, including projects supporting the DOE-WETO RAAW campaign in collaboration with national laboratories and academic partners.
URL:https://live-uw-engineering.pantheonsite.io/event/mechanics-seminar-tanmoy-chatterjee/
LOCATION:3M Auditorium\, rm 1106 Mechanical Engineering Building\, 1513 University Ave\, Madison\, 53711
CATEGORIES:Mechanical Engineering,Seminar
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BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20251003T120000
DTEND;TZID=America/Chicago:20251003T130000
DTSTAMP:20250918T193205Z
CREATED:20250918T131424Z
LAST-MODIFIED:20250918T193205Z
UID:10001332-1759492800-1759496400@live-uw-engineering.pantheonsite.io
SUMMARY:Strong duals for mixed integer programs.
DESCRIPTION:UW-ISyE looks forward to welcoming Dr. Santanu Dey\, Professor at  H. Milton Stewart School of Industrial and Systems Engineering at Georgia Institute of Technology.  \n\n\n\n\n\n\n\nWe develop two general-purpose strong dual formulations for binary MINLPs\, motivated by sensitivity analysis and distributed computation. For mixed binary quadratic programs (MBQPs)\, we show that the copositive dual of Burer’s completely positive reformulation has no duality gap when the feasible region is bounded or the objective is convex. Since the right-hand side of the original MBQP appears only in the dual’s objective\, this formulation enables sensitivity analysis. For nearly decomposable nonlinear mixed binary programs\, we propose a hierarchy of relaxations that preserve decomposability. The first level coincides with the classical Lagrangian relaxation\, while higher levels yield progressively tighter bounds\, culminating in a strong dual. We analyze the quality of these bounds for various types of MILPs. This is joint work with Diego Cifuentes and Jingye Xu. \n\n\n\n\n\nBio: Santanu S. Dey is an Anderson-Interface professor and director of doctorial recruiting and admissions in the H. Milton Stewart School of Industrial and Systems Engineering at Georgia Institute of Technology. Dr. Dey’s research interests are in the area of non-convex optimization\, and in particular mixed integer linear and nonlinear programming. His research is partly motivated by applications of non-convex optimization problems arising in areas such as electrical power engineering\, process engineering\, civil engineering\, logistics\, and statistics. He currently serves on the editorial board of Mathematical Programming A\, Mathematics of Operations Research and SIAM Journal on Optimization. He has previously served as an area editor for Mathematical Programming C and associate editor of INFORMS Journal on Computing. He has won the INFORMS Nicholson student paper competition\, IBM Faculty Award\, the Class of 1969 Teaching Fellow at Georgia Tech\, the NSF CAREER award\, the INFORMS Energy Natural Resources and Environment best paper award\, and the INFORMS optimization society Balas Prize.
URL:https://live-uw-engineering.pantheonsite.io/event/strong-duals-for-mixed-integer-programs/
LOCATION:1163 Mechanical Engineering\, 1513 Engineering Dr.\, Madison\, WI\, 53706\, United States
CATEGORIES:Colloquium,Industrial & Systems Engineering
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