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 1055 for “"FT"”.
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Isotope edited FT-IR of peptides
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1996.
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Characterization of cellulose esters via GPC/FT-IR
… of a Fourier transform infrared spectrometer (FT-IR) as an in-line detector for quantitative gel permeation chromatography (GPC). GPC/FT-IR has been used in the analysis of polymeric materials in the past, but not for quantifying the substituent content of cellulosics. This work has identified …
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Vibrational spectroscopic techniques (Raman, FT-IR and FT-NIR spectroscopy) as a means for the solid-state structural analysis of pharmaceuticals
… of vibrational spectroscopic techniques (Raman, FT-IR and FT-NIR spectroscopy) as a means for the solid-state structural analysis of pharmaceuticals. Budesonide, fluticasone propionate, salbutamol hemisulfate, terbutaline hemisulfate, ipratropium bromide, polymorphic forms of salmeterol xinafoate …
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Ft-Ir Study of the Dynamics of Entangled Polymer Melts
… using polarized Fourier-Transform infrared (FT-IR) spectroscopy. Based on the reptation model, the motion of a chain in the presence of topological entanglements is that of a one dimensional random walk along the chain contour. This motion allows the end portions of the chain to escape the …
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Conceptual design of a 30 ft. self-propelled monoform model
An investigation was directed at determining whether the Submarine Control System Test Vehicle (CSTV), could be used as the underwater hull for the Monoform (a small waterplane area ship). Hydrostatic and static stability considerations formed a basis for obtaining an optimum strut configuration …
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Gyrokinetic full-f transport simulations of ohmic FT-2 tokamak discharges
… in ohmic plasma discharges in the small Russian FT-2 tokamak from a first principal basis. The investigations are performed with the full-fparticle-in-cell (PIC) code Elmfire which calculates the time evolution of the full distribution function of the electrons and a selection of ions while …
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FT-ICR- und Tandem-massenspektrometrische Untersuchungen: Gasphasenreaktionen protonengebundener Heterodimere von Dicarboxamiden
Die Arbeit beschäftigt sich mit der Bestimmung von Protonenaffinitäten von Bicyclo[2.2.1]heptandicarboxamiden zur Untersuchung intramolekularer Protonenbrücken. Weiterhin werden Ligandenaustauschreaktionen protonenverbrückter Dicarboxamid-Amin-Cluster mit dem FT-ICR-Spektrometer untersucht.
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Computation tools for the Fourier transform infrared (FT-IR) spectroscopic imaging
… of 10.53 dB in the signal-to-noise ratio (SNR) after denoising. In addition, the absorbance contrast ratio (ACR) is increased by at least 1.07 times after deblurring over a spatial frequency range of interest on the standard USAF target. Most importantly, our method improves the spatial …
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Ideal hydrocracking catalysts for the conversion of FT wax to diesel
… occurs) for the conversion of Fischer-Tropsch (FT) wax to diesel and to determine the effect of carbon monoxide on the activity and selectivity of the hydrocracking catalyst for possible integration of low temperature FT wax synthesis with wax hydrocracking into a single stage. Theoretically, a …
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Simulating the performance of the 24 ft. installed MinWaterCSP axial flow fan
… Furthermore, in large ACC installations it is often not feasible to install the instrumentation required to analyse the fans installed performance and resulting flow field, which brings about more uncertainty regarding their installed performance. Computational fluid dynamics (CFD) modelling …
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Computational methods for cancer diagnosis and prognosis from FT-IR spectroscopy data
… pathology using fourier transform infrared (FT-IR) spectroscopy imaging. We employ tissue microarrays (TMAs) to record IR imaging data and adopt elaborated computational and analytical algorithms and statistical methods to recognize patterns and to construct robust systems. We firstly suggest …
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DFT modelling on the effect of manganese in cobalt-based FT-catalysts
The Fischer-Tropsch synthesis (FTS) process can be described as a combination of reactions that convert synthesis gas (essentially CO and H2) into long chain hydrocarbons (syncrude), which in turn is refined into transportation fuels, lubricants, and other petrochemicals. Among the commercially …
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Entwicklung der Ansteuerung eines Molekülstrahl-FT-Mikrowellenspektrometers und mikrowellenspektroskopische Untersuchungen an einigen Fruchtestern
Within this work the control software of a molecular beam FT microwave spectrometer has been developed and some fruit esters have been studied by microwave spectroscopy. With the spectrometer broad band scans can be performed and highly resolved measurements at certain frequencies can be carried …
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Operationalisation of FT-NIRS based real-time monitoring for optimisation of anaerobic digestion
… and digestate. Previous work has identified FT-NIRS technology for applications in real-time multi-parameter monitoring of sludges. This thesis addresses the gap between 'proof of concept' and operationalisation, using case studies of sewage-derived digestates and feedstocks from Advanced …
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FT-IR spectroscopy technology, market evolution and future strategies of Bruker Optics Inc.
… explores the technology and market evolution of FT-IR spectroscopy over its nearly forty year history to aid in determining future product design and marketing strategies for an industry-leading firm, Bruker Optics. As a benchmark, a universal performance metric was developed that combined key …
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