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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 89 for “"energy distributions"”.
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Electron Energy Distributions in Uranium Helium Mixtures
Made available in DSpace on 2017-07-06T18:55:13Z (GMT). No. of bitstreams: 3 Makowski_Michael_A_MS.pdf: 16213290 bytes, checksum: 2d1836c0731f95c66737e2abeba3b51a (MD5) Makowski_Michael_A_MS_ABS.pdf: 365355 bytes, checksum: af51a988ca5543aef5a87f15be491178 (MD5) license.txt: 4813 bytes, checksum: …
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Energy Distributions of Electrons in Radiation-Induced Helium Plasmas
Made available in DSpace on 2014-12-11T17:26:07Z (GMT). No. of bitstreams: 1 7317304.pdf: 3829035 bytes, checksum: ce74430ff177a68acaee16803c165c5c (MD5) Previous issue date: 1972
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The broad spectral energy distributions of accreting white dwarfs
… have been performed on the broad spectral energy distributions (SEDs) of these objects. I perform such a study here, and present the largest collection of broad CV SEDs yet constructed. I define a sample of well-studied, nearby cataclysmic variables of several different CV classes, and …
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Energy Distributions of Electrons in Electron Beam Produced Nitrogen Plasmas
Made available in DSpace on 2014-12-12T20:54:21Z (GMT). No. of bitstreams: 1 7616204.pdf: 1905346 bytes, checksum: 11354cf684c1dc49268f2f3f5fb89185 (MD5) Previous issue date: 1976
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Far-UV to Mid-IR Spectral Energy Distributions of Nearby Merging Galaxies
… of the light from an AGN and re-radiate that energy at infrared (IR) wavelengths. Therefore, quantifying the amount of buried AGN activity in the IR is key to understanding the role of major mergers in galaxy evolution. Spectral energy distributions (SEDs) allow Astrophysicists to disentangle …
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An Investigation of Arrival Energy Distributions in the Dynamic Crossed-Field Photomultiplier
Made available in DSpace on 2014-12-12T20:54:15Z (GMT). No. of bitstreams: 1 7606892.pdf: 4609370 bytes, checksum: 4327b26d81bd1cb26e708d69fbf4fb4b (MD5) Previous issue date: 1975
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Ion generation, electron energy distributions, and probe measurements in a low pressure arc
Thesis (Ph.D.) Massachusetts Institute of Technology. Dept. of Physics, 1957.
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Work Function Study of Iridium Oxide and Molybdenum Using UPS and Simultaneous Fowler-Nordheim I-V Plots with Field Emission Energy Distributions
… the flat samples and by Field Emission Electron Distributions from the field emission tips. Field emission characterization was conducted in a custom build analytical chamber capable of measuring Field Emission Electron Distribution and Fowler-Nordheim I-V plots simultaneously to independently …
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Part One: Theory of Translational Energy Distributions for Molecular Beam Reactions. Part Two: A Study of Electrolyte and Entropy Effects on Chemical and Electrochemical Electron Transfer Reactions. Part Three: A Statistical Mechanical Study of Double Layer Electrode Properties
Made available in DSpace on 2014-12-13T20:10:07Z (GMT). No. of bitstreams: 1 7726786.pdf: 3284690 bytes, checksum: 83e316cf0f4c53312dc162d68503ef01 (MD5) Previous issue date: 1977
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The Andromeda Optical and Infrared Disk Survey
The spectral energy distributions of galaxies inform us about a galaxy’s stellar populations and interstellar medium, revealing stories of galaxy formation and evolution. How we interpret this light depends in part on our proximity to the galaxy. For nearby galaxies, detailed star formation …
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Investigating the dynamics of ion-surface interactions using electron-spin-polarized positively charged helium ions
… electron-spin-polarized 4He+ ions coupled with energy-resolved measurements of the polarization of ejected electrons, are providing significant insight into surface electronic states and the dynamics of the neutralization of charged particles at clean and adsorbate-covered metal surfaces. The …
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The neutron-deutron breakup cross section between 8 and 22 MeV
… between 8 and 22 MeV by integrating the energy distributions of breakup protons in a deuterated scintillator. The breakup protons were separated from the recoil deuterons by pulse shape discrimination. A comparison of these measurements with recent calculations favours those performed …
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The Role of Hydrogen Bonding in Alkali Metal Ion Solvation
… ion clusters to determine the internal energy distributions of the ion clusters in the ion beam as a function of cluster size. It was found that the vibrational temperatures of $\rm Na\sp+(CH\sb3OH)\sb{m}$ ion clusters ranged from 1066 K for m = 1 to 178 K for m = 9 under experimental …
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A Numerical Investigation of Thermal Radiation Scattering From Configured and Random Surfaces
… scales on the order of the wavelength. Scattered energy distributions from one-dimensional surfaces are restricted within the incidence plane while scattered energy from two-dimensional surfaces is distributed in the entire hemisphere. The bi-directional reflection function and the directional …
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Fully-kinetic PIC simulations for Hall-effect thrusters
… accuracy was predicated upon the notion that the energy distributions of the various species remained Maxwellian at all times. The next generation of simulations used the fully-kinetic particle-in-cell (PIC) model. Although much more computationally expensive than the fluid codes, the full-PIC …
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Advances in fully-kinetic PIC simulations of near-vacuum Hall thruster and other plasma systems
… accuracy was predicated upon the notion that the energy distributions of the various species remained Maxwellian at all times. The next generation of simulations used the fully-kinetic particle-in-cell (PIC) model. Although much more computationally expensive than the fluid codes, the full-PIC …
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Probing the dynamics of radical reactions with polyatomic hydrocarbons by crossed-beam dc slice imaging
… radicals are probed as a function of collision energy using single photon ionization. The scattering results for pentane are quite similar for all reactants, suggesting that the nature of the abstraction site has surprisingly little influence on the dynamics studied at ~5 and ~9 kcal/mol. The …
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Classification and Abundance of Extremely Red Galaxies with R-J=>5
… galaxies. Since there are no spectra or spectral energy distributions of such galaxies available, we use stellar population synthesis models to predict which class of galaxies can satisfy our colour criterion. We test various star formation scenarios, both for elliptical galaxies, dusty starbursts …
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Relaxation kinetics of excitons in cuprous oxide
… with long-lived, mobile excitons. The kinetic energy distribution of the excitons is reproduced in phonon-assisted luminescence spectra. When non-equilibrium excitons are produced by a laser pulse, nanosecond-time-resolved luminescence reveals the relaxation of their kinetic energy …
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The Electron Emission Characteristics of Aluminum, Molybdenum and Carbon Nanotubes Studied by Field Emission and Photoemission.
… of thermal annealing were monitored with low energy ultra-violet photoelectron spectroscopy for flat samples while field emission energy distributions were used on tip samples. The change in the field emission from fabricated single tips exposed to oxygen while in operation was measured using …
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