Resume

• 2010

  PhD

  Physics

  Graduate Student Assembly (Senator

  Physics)

  Interdepartmental Activities Chair

  WashU Club Baseball

  Washington University in St. Louis

  Engineering Intern

• 2005

  BS

  Physics

  Mathematics

  and Engineering Physics

  Phi Kappa Phi (Vice President)

  Math Club (President)

  Physics & Engineering Physics Club (President)

  Student Government (Senator)

  Southeast Missouri State University

  Summa Cum Laude with Distinction in the Dept. of Physics & Engineering Physics

• Fluorescence Microscopy

  Baseball

  Simulations

  Scientific Computing

  Image Processing

  Python

  Scientific Software

  Research

  Matlab

  Confocal Microscopy

  Fluorescence

  Numerical Analysis

  Microsoft Office

  Physics

  Scientific Communications

  Science

  Linux

  Mathematics

  Signal Processing

  Simulation

  Magnetic Barriers and their q95 dependence at DIII-D

  A. Punjabi

  T.E. Evans

  H. Ali

  F.A. Volpe

  arXiv

  It is well known that externally generated resonant magnetic perturbations (RMPs) can form islands in the plasma edge. In turn

  large overlapping islands generate stochastic fields

  which are believed to play a role in the avoidance and suppression of edge localized modes (ELMs) at DIII-D. However

  large coalescing islands can also generate

  in the middle of these stochastic regions

  KAM surfaces effectively acting as \"barriers\" against field-line dispersion and

  indirectly

  particle diffusion. It was predicted in [H. Ali and A. Punjabi

  Plasma Phys. Control. Fusion 49 (2007)

  1565-1582] that such magnetic barriers can form in piecewise analytic DIII-D plasma equilibria. In the present work

  the formation of magnetic barriers at DIII-D is corroborated by field-line tracing calculations using experimentally constrained EFIT [L. Lao

  et al.

  Nucl. Fusion 25

  1611 (1985)] DIII-D equilibria perturbed to include the vacuum field from the internal coils utilized in the experiments. According to these calculations

  the occurrence and location of magnetic barriers depends on the edge safety factor q95. It was thus suggested that magnetic barriers might contribute to narrowing the edge stochastic layer and play an indirect role in the RMPs failing to control ELMs for certain values of q95. The analysis of DIII-D discharges where q95 was varied

  however

  does not show anti-correlation between barrier formation and ELM suppression.

  Magnetic Barriers and their q95 dependence at DIII-D

  Je-Luen Li

  Shannon Kian Zareh

  Biophysical Journal

  Diffusion coefficient measurements are important for many biological and material investigations

  such as studies of particle dynamics and kinetics

  and size determinations. Among current measurement methods

  single particle tracking (SPT) offers the unique ability to simultaneously obtain location and diffusion information about a molecule while using only femtomoles of sample. However

  the temporal resolution of SPT is limited to seconds for single-color-labeled samples. By directly imaging three-dimensional diffusing fluorescent proteins and studying the widths of their intensity profiles

  we were able to determine the proteins' diffusion coefficients using single protein images of submillisecond exposure times. This simple method improves the temporal resolution of diffusion coefficient measurements to submilliseconds

  and can be readily applied to a range of particle sizes in SPT investigations and applications in which diffusion coefficient measurements are needed

  such as reaction kinetics and particle size determinations.

  Single-image diffusion coefficient measurements of proteins in free solution

  Yan Mei Wang

  Michael Desantis

  Anthony Kovacs

  Jonathan M.

  Kessler

  PhD

  General Atomics

  Southeast Missouri State University

  Washington University in St. Louis

  Spartan Light Metal Products

  Greater St. Louis Area

  I apply theory

  simulation and experiment to studying intraflagellar transport (IFT) in chlamydomonas reinhardtii. Although chlamydomonas is an algae

  basic IFT function and mechanisms are conserved across nearly all ciliary eukaryotes

  making it a model system for studying ciliary disfunction

  aka ciliopathies. I'm currently comparing simulations of various models to fluorescent microscopy data to further understand the process of IFT turnaround and kinesin release.

  Graduate Research Assistant

  Washington University in St. Louis

  Sparta

  IL

  Summer Engineering Intern

  Spartan Light Metal Products

  Cape Girardeau

  MO

  I'm excited to announce that I have accepted a position in the Southeast Missouri State University Department of Physics and Engineering Physics.

  Assistant Professor

  Southeast Missouri State University

  I lectured to approximately 45 students in 3 different sections per week for the introductory physics lab section.

  Washington University in St. Louis

  Postdoctoral Research Assistant

  Imaging

  PCR

  video analysis

  and axoneme isolation and reactivation experiments.

  Washington University in St. Louis

  General Atomics

  San Diego

  CA

  I worked as an undergraduate summer research fellow on the DIII-D tokamak. I investigated Edge Localized Mode (ELMs) suppression by resonant magnetic perturbations (RMPs) through numerical simulations and analysis. ELMs

  disruptions just outside the reaction core mimicking solar flares

  can and are expected to cause extreme damage to future nuclear fusion devices such at ITER

  and controlling them via RMPs is a top priority for such projects.

  National Undergraduate Fellow

  Latin

  National Undergraduate Fellow

  Research funded by the NSF and DOE to study experimental fusion energy.

  Princeton Plasma Physics Laboratory