Events Calendar View

• Departmental Colloquium Jan 21, 2016

  Rethinking Introductory Physics for Life Science Students: A Model for Deep Curriculum Reform

  

  Guest: Edward Redish, Department of Physics, University of Maryland
  Thursday, January 21, 2016 3:30 pm - 4:30 pm
  Location: Physics Auditorium (Room 202)

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  For the past five years, a multi-university interdisciplinary team led by the University of Maryland's Physics Education Research Group has been rethinking the role that a physics class can play for biology majors and pre-meds. We found some surprising results. Some of the things we had been doing turned out to be of little value for this population; and we learned there were valuable things we could do for them that hadn't even occurred to us to try. I'll review some of our decisions and what we have learned. I'll spend the last few minutes of the talk speculating on some of the questions an approach like this raises for the physics curriculum for majors and engineers.

  References:
  Reinventing physics for life science majors, D. C. Meredith and E. F. Redish, Physics Today, 66:7 (2013) 38-43.
  Toward better physics labs for future biologists, K. Moore, J. Giannini, & W. Losert, Am. J. Phys., 82:5 (May, 2014) 387-393.
  Chemical energy in an introductory physics course for the life sciences, B. W. Dreyfus, B. D. Geller, J. Gouvea, V. Sawtelle, C. Turpen, & E. F. Redish, Am. J. Phys., 82:5 (2014) 403-411.

• CSP Lunch Seminar Jan 26, 2016

  Anisotropic Heisenberg Model in a Crystal Field: its Bicritical Universality (again!)

  

  Guest: Joao Plascak, Universidade Federal da Paraíba - UFPB - Brazil
  Tuesday, January 26, 2016 12:30 pm - 1:30 pm
  Location: CSP Conference Room (322)

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• Departmental Colloquium Jan 28, 2016

  Hamilton-Jacobi Trajectories of Comets Kohoutek and ISON: A Novel Approach to Celestial Dynamics

  

  Guest: Prof. M. Howard Lee, UGA Physics And Astronomy
  Thursday, January 28, 2016 3:30 pm - 4:30 pm
  Location: Physics Auditorium (Room 202)

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  There is a class of comets which visit the solar system once and never return. These events are rare, occurring but once or twice a century. Kohoutek observed in 1973 and ISON in 2012 belong to this class. These remarkable comets are physically characterized by the eccentricity e very nearly 1. Thus their trajectories would seem of special interest to celestial dynamics. By Hamilton-Jacobi theory we have obtained a general solution for the trajectory in a two-body solar system. If e<1, the solution contains Kepler's three laws. If e>1, it yields an analog of Kepler's law 2, not previously known perhaps. The trajectories for the two special comets are obtained by taking the e-->1 limit on the general solution. By a "horizon singularity" one can determine how they disappear from the solar system. By this singularity one can identify this class of comets as they approach the solar system.
• CSP Lunch Seminar Feb 2, 2016

  From Pets to Petabytes: The Rise and Triumph of Weather Forecasting as a Computational Science

  

  Guest: John Knox, Associate Professor, Department of Geography, University of Georgia
  Tuesday, February 2, 2016 12:30 pm - 1:30 pm
  Location: CSP Conference Room (322)

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• Departmental Colloquium Feb 11, 2016

  Nanotechnology Innovations at SRNL: Fundamentals and Applications

  

  Guest: Simona E. Hunyadi Murph, Savannah River National Laboratory
  Thursday, February 11, 2016 3:30 pm - 4:30 pm
  Location: Physics Auditorium (202)

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  Even though Nature provides us with an outstanding selection of materials that can improve our lives, their range and abundance is still surprisingly lacking in the contemporary world. The possibility of finding new and intriguing materials that can cure disease, help us explore and/or live in space, make us live longer and healthier lives, increase communications between people around the world, and discover new energy supplies is exhilarating. The promise of viable applications for the future lies in the ability of scientists to understand, generate and control materials at the nanoscale. The development of multifunctional nanomaterials opens up new avenues for the creation of multi-purpose technologies that can be used for numerous applications. Multifunctional nanoparticles take advantage of the physicochemical properties of two or more materials. This creates a new multifunctional composite nanostructure with tailored optical, surface, and structural properties which serve as a multimodal probing agent. Metallic nanoparticles (Au, Ag, Pt, Pd), metallic oxide nanoparticles (TiO2, Fe2O3, SiO2) or a combination of these will be the main focus of this presentation. Specifically, I will discuss our recent synthesis and characterization techniques used to create different size, shape, composition, and morphology of multifunctional nanostructures. Representative applications pertinent to chemical sensing, imaging, and environmental cleaning, etc. of these advanced nanostructures will be described.
• Departmental/CSP Colloquium Feb 25, 2016

  Application Opportunities and Challenges on the Titan Supercomputer: Accelerating the Path to the Exascale

  

  Guest: Jack C. Wells, Director of Science, Oak Ridge Leadership Computing Facility, ORNL
  Thursday, February 25, 2016 4:00 pm - 5:00 pm
  Location: Physics Auditorium (202)

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  Modeling and simulation with Petascale computing has supercharged the process of innovation, dramatically accelerating time-to-insight and time-to-discovery. The Titan supercomputer is the Department of Energy, Office of Science’s flagship Cray XK7 supercomputer managed by the Oak Ridge Leadership Computing Facility (OLCF). With its hybrid, accelerated architecture of traditional CPUs and graphics processing units (GPUs), Titan allows advanced scientific applications to reach speeds exceeding 20 petaflops with a marginal increase in electrical power demand over the previous generation leadership-class supercomputer. I will summarize the benefits, challenges, and lessons learned in deploying Titan and in preparing applications to move from conventional CPU architectures to a hybrid, accelerated architectures, and how the evolution of workloads on Titan is providing new opportunities for research in the areas of workflows and adaptive system schedulers. I will emphasize the challenges users have encountered with emerging programming models and how uses are addressing them using languages, libraries, and compiler-based solutions.

  I also plan to discuss the science outcomes from Titan in diverse areas such as physics, materials sciences, nuclear energy, and engineering sciences. I will also discuss research outcomes from a growing number of industrial partnerships. We will discuss implications for the research community as we prepare for exascale computational science and engineering within the next decade. I will also provide an overview of user programs at the Oak Ridge Leadership Computing Facility with specific information how researchers may apply for allocations of computing resources.

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