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 290 for “"Controlled conditions"”.
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Nonlinear hydrodynamic modelling of wave energy converters under controlled conditions
… the model, the device type, and the operational conditions. Linear models, often chosen due to their computational convenience, are likely to be imprecise when a control strategy is implemented in a WEC: under controlled conditions, the motion of the device is exaggerated in order to maximize …
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A study of strontium redistribution under controlled conditions of temperature and pressure.
Massachusetts Institute of Technology. Dept. of Geology and Geophysics. Thesis. 1965. Ph.D.
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Plasma lipids and lipoproteins in male subjects under controlled conditions of high cholesterol feeding
… either 400 mg or 1400 mg cholesterol/day under controlled dietary conditions for 4 consecutive weeks. One group received a diet containing 400 mg cholesterol/day, which was contributed by non-egg food sources. The other group received a similar diet with the daily addition of 1000 mg cholesterol …
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The Growth of Streptomycetes and Fungi Under Controlled Conditions on the Surface of Coated Materials
… system was designed and constructed to give a controlled humidity environment, allowing fungal and streptomycete colonisation of wheat starch and cellulose substrates to be studied. The apparatus permitted simultaneous production of seven humidities and avoided a decrease in the oxygen-carbon …
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Performance Evaluation of Logistic Regression, Linear Discriminant Analysis, and Classification and Regression Trees Under Controlled Conditions
… the performance of these methods under different controlled conditions. With this information in hand, researchers can apply the optimal method for certain conditions. Following previous research which reported the effects of conditions such as sample size, homogeneity of variancecovariance …
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The effect of feeding either egg white, soy and nonfat dairy protein in male subjects on plasma levels of triglycerides and very low density lipoproteins under controlled conditions
Twenty-four male university students were fed vegetarian diets containing 100 grams of protein. Seventy-five grams of protein came either from soy, non-fat dairy products or egg white. Diets were adjusted so that differences in total caloric intake, protein, carbohydrate, fat and fatty acid …
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Studies on the spread of Verticicladiella procera by soil-borne and insect-borne propagules
… infested soil decrease rapidly under natural and controlled conditions. Colonization of seedlings in artificially infested soil was rare and symptoms were not displayed by colonized seedlings. Natural populations of V. procera were closely associated with colonized root tissue. Colonization of …
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The design and commissioning of a laboratory thickener test plant for measurement and control investigations
… to carry out measurement and control tests under controlled conditions. The laboratory scale thickener simulates the settiling conditions found in full scale high compression thickeners. A review of thickener technology, applicable measurements and control strategies was carried out.
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A computer controlled random wave generator
… are needed to model ocean wave phenomena under controlled conditions. This thesis describes the techniques and principles employed in the design, commissioning and evaluation of a computer controlled random wave generation facility devised to accurately simulate spectral wave models.
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Influence of temperature, soil moisture, and planting depth on germination and emergence of 'Packman' broccoli
… establishment. Temperature and soil moisture conditions in Southside Virginia during July and August are often less than favorable for seedling growth. Experiments were designed to test the temperature and moisture stress limits for germination and emergence of 'Packman' broccoli, under the …
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Effects of Surface Oxidation on Vacancy Defects in Beta Nickel-Aluminum Alloys
… process in (beta)-NiAl alloys annealed under controlled conditions of temperature and oxygen partial pressure. Binary Ni-Al alloys, with nominally 47.5, 50.4 and 52.5 at .% Al, were examined. The Auger spectroscopy analysis showed that the predominant oxide formed on these alloys is …
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The use of bakery wastes as a nutritional source for fish
… pie production waste were investigated under controlled conditions. Diets containing high levels of these wastes produced good growth with no deleterious effects. Diets containing high lipid levels with the fat supplied by the bakery waste were shown to spare protein. 17% fat in the diet …
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Radiation Damage in Permanent Magnet Lenses
… image quality. This effect is studied under controlled conditions, leading to the conclusion that nonuniform radiation damage is inherent to the quadrupole configuration and results in increased multipole moments which degrade the imaging performance. Studies on magnet samples suggest that …
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Characterization of Flax Germplasm for Resistance to Fusarium Wilt Caused by Fusarium oxysporum f. sp. lini
… The objectives of this study were to develop a controlled environment phenotyping method to test flax lines for reaction to flax wilt and screen a recombinant inbred line (RIL) population for reaction to flax wilt under a controlled environment and compare the observations with field evaluations …
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Benzodiazepine and opioid dependence. Clinical and meta-analytical studies.
… (d=0.61) and (d=0.35) respectively compared to controlled conditions. Type of study design (gradual detoxification, placebo or untreated controls) could explain some of the heterogeneity found. In the naltrexone review (Paper IV) naltrexone was significantly better than controlled conditions in …
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Synthetic aperture sonar for sub bottom imaging
… been implemented in a laboratory tank, under controlled conditions at a fresh water reservoir, and under realistic operational conditions at sea. Encouraging results have been obtained.
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Nitriding of aluminium-containing steels
… the metallography of the steels nitrided under controlled conditions, using transmission electron microscopy of thin foils and carbon replicas, optical microscopy and microhardness measurements. A potentiostatic etching method was used for the extraction of carbides and nitrides, and those …
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Environmental Performance of Copper Slag and Barshot as Abrasives
… combinations reported in this study to their conditions appropriately. This project is a joint effort between the Gulf Coast Region Maritime technology Center (GCRMTC) and USEPA. It was undertaken to simulate actual blasting operations conducted at shipyards under enclosed, un-controlled …
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Direct-Write Assembly of Three-Dimensional Polyelectrolyte Scaffolds, Inorganic Hybrids, and Photonic Crystals
… of silica and germanium are then performed under controlled conditions to produce optimal layer structures that maximize the photonic midgap/gap ratio. Next, the oxide and polymeric phases are removed to complete the fabrication of 3D hollow woodpile photonic crystals. The optical properties of …
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Physiological and Morphological Responses to Drought Stress in Different Cultivation Environments in Wild Type and ABA-deficient Barley
… widely studied, studies are often conducted in controlled greenhouse or laboratory conditions rather than more realistic field-like conditions. This is justified by the lower costs, convenience, and ability to disentangle the effects of different factors in more controlled conditions. This …
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