Below is a list of talks/presentations I have given.
American Physical Society-Division of Plasma Physics Meeting (11/13/2007)
Hosted by APS-DPP 2007. I presented a poster in the Undergraduate category about the research I had
worked on with Dr. Darin Ernst in the previous summer.
Argonne National Laboratory Undergraduate Research Sypmposium (11/02/2007)
Hosted by Argonne National Laboratory. I presented a talk about the research I had
worked on with Dr. Darin Ernst that summer at the Advanced Photon Source.
UMR Physics Department Colloquim (09/20/2007)
Hosted by the University of Missouri- Rolla Physics Department. I presented a talk about the research I had worked on with Dr. Darin Ernst that summer.
Presentation: Linear and Nonlinear Studies of Trapped Electron Mode Turbulence. Abstract below under DoE National Undergraduate Fellowship Seminar (08/16/2007).
DoE National Undergraduate Fellowship Seminar (08/16/2007)
Hosted by the Plasma Science and Fusion Center at Massechusetts Institute of Technology. I presented a talk about the research I had worked on with Dr. Darin Ernst that summer.
Presentation: Linear and Nonlinear Studies of Trapped Electron Mode Turbulence.
Abstract:
Linear stability diagrams are presented to clarify the onset of toroidal drift modes,
including ITG, and resonant and non-resonant TEMs, as a function of density and
temperature gradients. Nearly two thousand linear gyrokinetic stability analysis were
performed with the GS2 code to generate a stability diagram, varying density and
temperature gradients around the "Cyclone Base Case." A series of nonlinear gyrokinetic
simulations have been carried out to analyze the anisotropy of the turbulent eddies, and
the role of zonal flows, as a function of drive. Two separate studies have previously
found that zonal flows play very different roles in TEM turbulence. The first [1], found
that zonal flows play a strong role near threshold, where they produce a nonlinear
upshift. The second [2], for a case well above threshold, found that zonal flows have
little effect on the turbulent saturation level. Our results show that the anisotropy
depends on the type and strength of the drive.
1) D. R. Ernst et al., Phys. Plasmas 11(5) (2004) 2637. Also
IAEA-CN-149/TH/1-3 (2006).
2) T. Dannert et al., Phys. Plasmas 12 (2005) 072309.
Harold Q. Fuller Undergraduate Physics Research Competition (04/26/2007)
Hosted by Physics Department at the University of Missouri - Rolla. This year a poster competition was held with four undergraduate physics participants. I presented a poster with colleage Emilo Nanni. We placed second in the competition and were awarded $200.
Poster: Detecting Gamma Rays with Quantum Dots Michael Hoffman and Emilio Nanni
Missouri Academy of Science (04/20/2007)
The anual meeting of the Missouri Academy of Science was held at Missouri Western State University. Three SPS members from UMR presented at the meeting: Mark Herrera, Shellie Huether, and Michael Hoffman. My presentation covered the research I had done with Emilio Nanni under Dr. Massimo Bertino. I was awarded First Place in the Collegiate Physics Division, Shellie Huether was awarded Second Place in the entire poster competition!
Presentation: Detecting Gamma Rays with Quantum Dots Michael Hoffman
UMR Undergraduate Research Day (04/13/2007)
Full Article -- "The conference, which will include the presentation of $12,000 dollars in cash awards to students, is co-sponsored by Brewer Science Inc. of Rolla and the UMR Office of Undergraduate and Graduate Studies. Seventy students have entered poster or oral presentation projects in four different research categories. The categories are engineering, humanities and social sciences, natural sciences, and management and information systems."
This was the first time I presented this work at conference. I recieved 1st Place in the Natural Science Division and $750 dollars in award. Mark Herrera, Lauren Rich and Lane Martin also presented in the conference from the UMR Physics Department. All three placed in the Poster Competition!
Presentation: Detecting Gamma Rays with Quantum Dots Michael Hoffman
SPS presentation (03/20/2007)
At a routine SPS meeting I shared the presentation linked below with my fellow SPS students. The presentation is essentially a walk through chapter six: electromagnetism of General Relativity: An Introduction for Physicists by Hobson. I enjoy the great deal that can be derived with a few physical principles and mathematical deductions.
Presentation: Electromagnetism: From 4-D Force to Maxwell's Equations Michael Hoffman