Global ETD Search
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 2232 for “"spectroscopic"”.
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Spectroscopic studies on hydrogenases
… RR, IR and electron paramagnetic resonance (EPR) spectroscopic characterisation of redox-tuned samples could show that the cluster of both ReMBH variants (i.e. C19G and C120G) could undergo only a single redox transition, corresponding to one of the respective transitions observed in the wildtype. …
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Spectroscopic surface brightness fluctuations
… to apply this technique for the first time to spectroscopic data. In this thesis I develop the spectroscopic SBF technique and measure the first SBF spectrum of any galaxy. I discuss the challenges for measuring SBF spectra that rise due to the complexity of integral field spectrographs …
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Spectroscopic studies of sonoluminescence
Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:38:51Z Item is restricted indefinitely.
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Spectroscopic signatures of isomnerization
This thesis explores spectroscopic signatures of isomerization, especially new patterns that emerge and report on chemically relevant portions of the potential energy surface, such as the transition state. The most important new pattern discovered is the "isomerization dip", a sharp decrease in the …
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Spectroscopic Studies of Molecular Conformations
The vibrational spectra of a series of diesters of fumaric and maleic acids and also of substituted butadienes have been investigated over a range of temperatures and phases. The effects on infrared and Raman spectra of altering the temperature and phase of these compounds (using matrix isolation …
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A spectroscopic study of paint
Paint is one of the commonest forms of trace evidence submitted to a forensic laboratory for analysis. It is essential that techniques are available that allow rapid and confident discrimination between different samples. The aim of this study was to ascertain the discrimination that could be …
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Spectroscopic Studies on Molecular Interactions
Made available in DSpace on 2014-12-09T17:36:30Z (GMT). No. of bitstreams: 1 7013255.pdf: 3336530 bytes, checksum: 8a9cd8480a7ae77327c43396f53395c8 (MD5) Previous issue date: 1969
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Spectroscopic patterns encode unimolecular dynamics
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1999.
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A simple spectroscopic pollution analyzer.
Thesis: B.S., Massachusetts Institute of Technology, Department of Physics, 1971
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Spectroscopic analysis of selected silicon ceramics
Silicon ceramics are popular in both commercial applications and material research. The purpose of this thesis is to present measurements and analysis of four different silicon ceramics: α, β and γ phases of silicon nitride and silicon oxynitride using soft x-ray spectroscopy, which analyses the …
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Mueller matrix spectroscopic ellipsometry of multiferroics
… the experimental data. Initially, Mueller matrix spectroscopic ellipsometry is reviewed. Analysis for optical spectra measured for isotropic Dy_3Fe_5O_{12} is given, for which contributions from magnetic and electric excitations are identified and the absence of strong magneto-electric effects is …
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The FORS Deep Field Spectroscopic Survey
The determination of the properties of galaxy populations at different redshifts provides important constraints on current models of galaxy formation and evolution. In order to investigate this evolutionary process systematically, we obtained high S/N spectra for 265 galaxies at redshifts up to 5.0 …
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Mid infrared spectroscopic imaging and tomography
Fourier Transform Infrared (FT-IR) Spectroscopic Imaging is an optical technique that simultaneously provides morphological (two dimensional) and mid-infrared spectral (one dimensional) information for a specimen under observation. In this dissertation, we develop a new instrument that extends the …
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Spectroscopic studies of magnetic cataclysmic variables
In this thesis I present the results of optical spectroscopic analyses of four Polars and the spectra of five new systems. The results of four candidate magnetic cataclysmic variables, which were selected from the ROSAT Bright Survey, are also presented. Time resolved spectra are used for the dual …
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Spectroscopic study of the acetylene species
This thesis describes recent spectroscopic studies of acetylene and its HCCD isotopomer. Three different kinds of experiments have been performed: Laser-Induced Fluorescence (LIF), Dispersed Fluorescence (DF), and Stimulated Emission Pumping (SEP). Each experiment has yielded new discoveries in the …
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Spectroscopic study of methinophosphide and isocyanogen
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1994.
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Spectroscopic and mechanistic studies of nitrogenase
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1996.
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Synthesis and Spectroscopic Studies of Substituted Pyrrolocytidines
This thesis reports work in the area of modified nucleosides for potential use as molecular probes in nucleic acid chemistry. These heterocyclic base surrogates that are capable of canonical base pairing have use in the study of nucleic acid conformation, as reporters of the state of …
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Structural and Spectroscopic Characterization of Modular Photoreceptors
… I also present my work in characterizing four spectroscopically distinct CBCRs from the same multi-sensor photoreceptor protein, both in isolated forms and in the full-length context. Based on spectral and structural studies, I discuss how bacterial signaling proteins combine different sensor …
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