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 177 for “"Temperature effects"”.
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Conducting polymer actuators : temperature effects
… a reasonable bandwidth. Polypyrrole actuated at temperatures as high as 100 °C increases stress magnitudes by as much as 4x and stress rates by 5x. The effect is caused by a combination of decreased solution resistance and increased ion diffusion within the polymer. However, these temperatures …
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Temperature Effects on Drinking Water Odor Perception
… directional difference testing to determine if temperature affected odor perception when presented with two water samples. Following directional difference testing, panelists used FPA and evaluated water samples that contained odorants at either 25°C or 45°C. Samples containing geosmin cooled to …
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Finite temperature effects in free-electron-lasers
Finite temperature effects of a Free-Electron -Laser amplifier are analysed. The formalism follows Bernstein-Hirshfield model by using the linearized relativistic Vlasov equation while keeping the exact pump potential except for its radial dependence. In addition to this, our formalism includes an …
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Sweeprate and Temperature Effects on Crackling Noise
… the infinitely slow driving rate limit at zero temperature. In this dissertation I investigate the effects of relaxing these limits. First I consider the crackling system at zero temperature and finite sweeprate. I discuss how the temporal overlap of power law bursts can account for a wide range …
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Objective and subjective temperature effects of virtual reality
… whether we could manipulate an individual’s body temperature by immersing them in a virtual environment. Virtual reality (VR) involves digital environment immersion of individuals and their movements into a digital space designed to simulate a real environment. The goal of VR is to give the …
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Modeling Temperature Effects on Vector-Borne Disease Dynamics
… climate, modeling studies tend to ignore climate effects. Here, I am interested in the arthropod small vectors that are sensitive to climate factors such as temperature, precipitation, and drought. In particular, I am looking at the effect of temperature on vector traits for two VBDs, namely, …
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Temperature Effects on Radiation-Induced Optical Absorption in Pyrex
Made available in DSpace on 2017-07-06T18:55:29Z (GMT). No. of bitstreams: 3 Nadler_Jonathon_H_MS.pdf: 33331966 bytes, checksum: 652a8d0e2260e401fa48fd18f9f5e960 (MD5) Nadler_Jonathon_H_MS_ABS.pdf: 1104261 bytes, checksum: 263341cacf057793f5c9dfba6c50c8bd (MD5) license.txt: 4813 bytes, checksum: …
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Texture modeling--temperature effects on Markov/Gibbs random fields
Thesis: Sc. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 1991
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Selectivity and temperature effects in high performance liquid chromatography
… phase mode. A column oven which controlled temperature to within ± 0.2 °C over the range of 0°C to 100°C was utilized throughout the work. Four different mobile phases were used, two for the normal phase work and two for the reversed phase work. The effect of temperature was investigated in …
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Investigation of temperature effects on subsurface attenuation of nitroaromatic compounds
… State University has shown that maintaining soil temperatures ~5°C above natural site conditions substantially increases rates of anaerobic petroleum hydrocarbon degradation. The overarching goal of this research is to determine whether thermal enhancement might increase attenuation rates of NACs …
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Investigation of temperature effects on electro mechanically cooled Ge detectors
… uncontrolled environmental conditions, in which temperature variations can be as great as 30°�C. This project aims to investigate how much of an effect this temperature variation has on the resolution of the detectors and if so to what extent. Three Ge detectors were used in this project, an …
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Temperature effects on sorption and permeability of different polymer membranes
Includes bibliographical references (pages 83-88).
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Temperature effects on reinforced concrete building structures in Saudi Arabia
The effects of temperature distributions resulting from ambient conditions on reinforced concrete roofs in Saudi Arabia are investigated. A finite element program (ABAQUS) was used to determine the temperature distributions under different weather conditions. The model was verified by means of …
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Root-zone temperature effects on the nutrient uptake of horticultural crops
… crops often are subject to root-zone temperatures (RZT) that exceed 30C, but little is known about the effects of supraoptimal RZT on nutrient absorption. In my first study, I determined the amount of phosphorus (P), zinc (Zn), and manganese (Mn) in tomato (Lycopersicon esculentum …
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Temperature effects on the electronic conductivity of single-walled carbon nanotubes
The room-temperature electronic conductivity and temperature dependence of conductivity were measured for samples of carbon nanotubes of three types: pristine; functionalized with a nitrobenzene covalent functionalization, which are expected to display poor electronic conductivity; and …
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A Histological Study of Temperature Effects on the Testis of the Fowl
Made available in DSpace on 2014-12-04T22:45:55Z (GMT). No. of bitstreams: 1 0013579.pdf: 4633387 bytes, checksum: 4237a1651c3fa9b7ace5542c65e97d7c (MD5) Previous issue date: 1955
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Charge and temperature effects on biomolecule hydration: an experimental and computational investigation
… this dissertation is on the role of charge and temperature on the structure of hydrated cluster ions. This is investigated using a combination of infrared photodissociation (IRPD) spectra and geometry and frequency calculations. The particular cluster ions examined here include hydrated rubidium …
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Moisture and temperature effects on the dielectric spectrum of transformer insualtion materials
… to absorbed moisture, the moisture and temperature effects on the dielectric spectrum of oil-free pressboard are measured using a parallel-plate geometry sensor for nine moisture levels and five temperature levels. A dielectric model for biological tissue is adopted here for cellulose …
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Controlled Evaluation of Silver Nanoparticle Dissolution: Surface Coating, Size and Temperature Effects
… and external factors. First, surface coating effects were investigated by using three different coating agents (BSA, PEG1000, and PEG5000). Capping agent effects nanoparticle transformation rate by blocking reactants from the nanoparticle surface. Coatings prevented dissolution to different …
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