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September 2021

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13
Sep

Hybrid Applied Mathematics Seminar

Conference/Seminar

Talk Title: Solving Heat Transfer and Fluid Flow Problems with Reduced Order Models and Neural Networks

Speaker: Dr. Zilong Song Department of Math & Stat, USU

Abstract: The friction stir welding process can be modelled using a system of heat transfer and Navier-Stokes equations with a shear dependent viscosity. Finding numerical solutions of this system of nonlinear partial differential equations over a set of parameter space, however, is extremely time-consuming. Therefore, it is desirable to find a computationally efficient method that can be used to obtain an approximation of the solution with acceptable accuracy. In this talk, we present a reduced basis method for solving the parametrized coupled system of heat and Navier-Stokes equations using a proper orthogonal decomposition (POD). In addition, we apply a machine learning algorithm based on an artificial neural network (ANN) to learn (approximately) the relationship between relevant parameters and the POD coefficients. Our computational experiments demonstrate that substantial speed-up can be achieved while maintaining reasonable accuracy.

10:30 am - 11:30 am | Animal Science |
13
Sep

Interaction Between Low-level Jets and Wind Turbine Arrays

Conference/Seminar

The low-level jet (LLJ) is a phenomenon that exhibits a pronounced velocity peak at the top of the stable boundary layer.

1:00 pm - 2:00 pm | Engineering Building |
14
Sep

Biology Speaker Seminar Series: Dr. Anne Murphy

Conference/Seminar

Dr. Anne Murphy from Georgia State University will be presenting "Impact of Age and Sex on Opioid Modulation of Pain" in-person as well as on Zoom. Join the seminar in-person in LSB 207 or on Zoom: https://usu-edu.zoom.us/j/83955459503?pwd=bXhoNCtLb1UzTy9zcEV1V3ByUzZodz09

3:30 pm - 4:30 pm | Life Sciences Building |
15
Sep

Interfacial Dynamics of Particles and Droplets at Fluid-fluid Interfaces

Conference/Seminar

Research Seminar Series presentation

1:00 pm - 2:00 pm | Engineering Building |
15
Sep

Ecology Center Seminar Series - Dr. Beth Rose Middleton Manning

Conference/Seminar

Dr. Beth Rose Middleton Manning (Afro-Caribbean, Eastern European) is a Professor of Native American Studies at UC Davis. Beth Rose’s research centers on Native environmental policy and Native activism for site protection using conservation tools. Her broader research interests include intergenerational trauma and healing, rural environmental justice, indigenous analysis of climate change, Afro-indigeneity, and qualitative GIS.

4:00 pm - 5:00 pm | Life Sciences Building |
16
Sep

Investigations of Turbulent Multiphase Flows Using Optical Measurement Techniques

Conference/Seminar

Small inertial particles in turbulence appear in a number of environmental flows such as dust, sand, rain, snow or sediment in the atmospheric boundary layer, in rivers, during deep-sea mining or on Mars. Particle dynamics, including accelerations and concentrations, depend (among other things) on gravity and inertia. In this talk I will present results of recent high-Reynolds-number experiments of inertial particles in turbulence which are performed in a turbulence box (Re? = 450) and an atmospheric boundary layer wind tunnel (Ret = 19,000). These results are of direct use in prediction and modeling of phenomena such as droplet growth in clouds, fall speed of snowflakes and particle concentrations in dust storms.

2:00 pm - 3:00 pm | Engineering Building |
16
Sep

Ecology Center Seminar Series - Dr. Beth Rose Middleton Manning

Conference/Seminar

Dr. Beth Rose Middleton Manning (Afro-Caribbean, Eastern European) is a Professor of Native American Studies at UC Davis. Beth Rose’s research centers on Native environmental policy and Native activism for site protection using conservation tools. Her broader research interests include intergenerational trauma and healing, rural environmental justice, indigenous analysis of climate change, Afro-indigeneity, and qualitative GIS.

4:00 pm - 5:00 pm | Life Sciences Building |
17
Sep

Kevin Moon's Science Unwrapped Talk

Conference/Seminar | Science Unwrapped

Seeing Science: Using machine learning to visualize data.

7:00 pm - 8:00 pm | Eccles Science Learning Center Auditorium |
20
Sep

Reducing the Harm & Stigma of Opioid Use Disorder

Conference/Seminar

Communities benefit from reducing the stigma and helping prevent harm caused by opioid misuse, including overdose and disease, by building understanding and support for recovery and growth through evidence-based best practices. YOU can make a difference.

Join the Utah State University Extension's Tribal & Rural Opioid Initiative Resource Center on Monday, September 20 at 6:30 pm MDT, to learn about harm reduction strategies for opioid misuse treatment and overdose prevention. Dr. Erin Manning, Wayne State University School of Medicine Associate Professor, will present topics that are proven to address opioid misuse, including stigma reduction, person-first language, naloxone education, syringe exchange, and medication-assisted treatments.

* Treatment professionals may qualify for 1 CEU by completing required evaluations and the complete training session.

6:30 pm - 8:00 pm | Online/Virtual |
21
Sep

Biology Speaker Seminar Series: Dr. Matt Holding

Conference/Seminar

Dr. Matt Holding from Michigan State University will be presenting "Evolution of Complexity in Two Molecular Weapons Systems: Viper Venoms and Rodent Phytochemical Detox Genes" in-person as well as on Zoom. Attend the seminar in-person in LSB 207 or on Zoom: https://usu-edu.zoom.us/j/83955459503?pwd=bXhoNCtLb1UzTy9zcEV1V3ByUzZodz09

3:30 pm - 4:30 pm | Life Sciences Building |
24
Sep

Geosciences Speaker Series: Joann Stock

Conference/Seminar

Joann Stock from California Institute of Technology is a speaker from the IODP lecture series. She will present on "Filling the Void: Processes of Creation of New Crustal Area During Early Seafloor Spreading".

11:30 am - 12:30 pm | Online/Virtual |
27
Sep

Applied Mathematics Seminar

Conference/Seminar

In-Person: ANSC 119
ZOOM ID: 860 6092 4997 PWD: USUAMS

Title: Sensitivity analysis and uncertainty quantification using novel physics-constrained machine learning

Speaker: Dr. Hamidreza Karbasian, Fields Institute, University of Toronto

Abstract:
A new physics-constrained data-driven approach is proposed for sensitivity analysis and uncertainty quantification of large-scale chaotic dynamical systems. Unlike conventional sensitivity analysis, this approach can solve the unsteady sensitivity function for PDE-constrained optimizations. In this new approach, high-dimensional governing equations, such as Navier-Stokes equations, from physical space are transformed into an unphysical space to develop a closure model in the form of a Reduced-Order Model (ROM). Subsequently, a new data sampling approach is proposed to build a data-driven approach for this framework. It is shown that the proposed approach can capture sensitivities for large-scale chaotic dynamical systems, where Finite Difference (FD) approximations fail ...

10:30 am - 11:30 am | Animal Science |
28
Sep

Biology Speaker Seminar Series: Dr. Robert Schaeffer

Conference/Seminar

Dr. Robert Schaeffer from Utah State University will be presenting a discussion of his research in-person as well as on Zoom. Attend the seminar in-person in LSB 207 or on Zoom: https://usu-edu.zoom.us/j/83955459503?pwd=bXhoNCtLb1UzTy9zcEV1V3ByUzZodz09

3:30 pm - 4:30 pm | Life Sciences Building |
30
Sep

Aviation Career Fair

Conference/Seminar

The USU Aviation Career Fair provides students a unique opportunity to connect with dozens of employers right here in Logan. Meet and talk with representatives from airlines and other aviation-related companies such as Alaska/Horizon, Republic, SkyWest, Envoy, United, and other aviation-related companies! Discuss your qualifications, find where jobs are opening, and learn what employers are looking for in the near future! This is a great networking opportunity even for students who aren't looking to graduate soon.

Don't miss out on this great opportunity! Mark you calendars now, update your resumes, and come prepared to meet some of the great airline companies throughout the United States.

10:00 am - 2:00 pm |
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