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Now showing items 21-30 of 43
Simulating the universe with GPU-accelerated supercomputers: n-body methods, tests, and examples
(Vanderbilt University. Department of Physics and Astronomy, 2013-04-22)
We demonstrate the acceleration obtained from using GPU/CPU hybrid clusters
and supercomputers for N-body simulations of gravity based in part on the
author's new code development. Validation tests are shown for ...
LieART 2.0--An Improved Way to Compute Branching Rules
(Vanderbilt University. Dept. of Physics and Astronomy, 2019-04-18)
In this thesis, we present LieART 2.0 which contains substantial extensions to the Mathematica application
LieART (Lie Algebras and Representation Theory) for computations frequently encountered in Lie algebras and ...
Ps2- in a magnetic field : structure and stability in the M=0 state.
(Vanderbilt University. Dept. of Physics and Astronomy, 2016-05-02)
The energy of the Ps2- (three electrons and two positrons or vice versa) system and all possible fragmentations are calculated in a magnetic field in their M=0 states using the stochastic variational method with a deformed ...
Reflection and rotation for three dimensional microscopy of live cells
(Vanderbilt University. Dept. of Physics & Astronomy, 2008-04-18)
Confocal scanning laser microscopy and multiphoton microscopy provide 3D data from biological specimens, but with limited z-axis precision. Multiple microscale mirrors can be used to obtain more accurate 3D data on living ...
Engineering a perfusion-enabled mechanical compressor for long-duration immobilization and microscopy of cells and small organisms
(Vanderbilt University. Dept. of Physics and Astronomy, 2011-04)
The study of living specimens is essential to the understanding of
organismal behavior. Unfortunately, a major difficulty in the study of
live organisms is that many move in and out of the field of view or
focal plane ...
Perturbation Theory for Thin Cladding Layers on Silicon Photonic Systems
(Vanderbilt University. Dept. of Physics and Astronomy, 2011-04)
I develop a perturbation theory for resonant frequency shifts caused by thin
layer of material added to dielectric systems. This development can be used
to effectively model photonic surface-sensing systems, which use ...
Developing High-Brightness Electron Beam Sources for Producing Quantum Degenerate Electron Beams
(Vanderbilt University. Dept. of Physics and Astronomy, 2011-04)
The Pauli Exclusion Principle places a fundamental limit on the brightness
of an electron beam. Developing a cathode which can reach this limit is
useful for achieving maximum operation in current applications of ...
Measuring Radial Velocities of Low Mass Eclipsing Binaries
(Vanderbilt University. Dept. of Physics and Astronomy, 2011-04)
Due to the complex nature of the spectra of low-mass M type stars, it
is difficult to determine their metallicities and temperatures
directly. By studying eclipsing binary pairs comprising one F, G, or
K type star with ...
Finite-Element Analysis of Low-Power Laser Heating in Gold::Vanadium Dioxide Nanocomposites
(Vanderbilt University. Dept. of Physics and Astronomy, 2011-04)
Finite element modeling was performed using COMSOL Multiphysics to study the
thermal dynamics of gold::vanadium dioxide (VO$_{2}$) nanocomposites. These
simulations were done to understand the data from transient ...
First observation of the direct detection of positive D-meson into anti-K-long + 3 pions and negative D-meson into K-long + 3 pions with the Fermilab FOCUS experiment
(Vanderbilt University. Department of Physics and Astronomy, 2014-04)
In this thesis the decays of positive D-mesons into neutral anti-K-mesons and
three charged pions and of negative D-mesons into neutral K-mesons and three
charged pions are reconstructed in both long and short neutral ...