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.
Results
Showing 1 to 20 of 218 for “"laboratory study"”.
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A laboratory study of three-dimensional breaking waves
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1995.
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A Laboratory Study of the Physical Properties of Colloids
… writer, upon completion of an experimental study of colloids, has decided that colloid plucking and colloid swelling are operative in nature and are important processes in physical weathering. </p>
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A laboratory study of the 'shoreline' detected in video imagery
A controlled laboratory experiment was undertaken to simulate varying swash zone characteristics and sensor-target geometry found in digital images collected by ARGUS coastal imaging systems. Using a hyperspectral sensor, reflectance data were integrated over the respective red, blue and green …
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A laboratory study of some basic principles of drug action
Thesis (M.S.)--Michigan State University. Dept. of Pharmacology, 1972
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A laboratory study on the anaerobic digestion of yeast waste
This thesis reports the establishment of a new type of internally clarified digester as a means of treating a strong industrial waste. Factors pertaining to both the system and the waste itself were investigated. A batch system was used to determine the susceptibility of the waste chosen, viz. that …
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A laboratory study of the friction behavior of granular materials
I report on laboratory experiments designed to investigate the microphysical processes that result in rate- and state-dependent friction behavior and experiments designed to match the boundary conditions used by numerical models of granular friction. The effect of relative humidity (RH from <5% to …
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Stabilization of Soft Clay Subgrades in Virginia Phase I Laboratory Study
… and a proprietary cementitious stabilizer. A laboratory procedure was developed and applied to three Virginia soils obtained from Northern Virginia, Staunton, and Lynchburg. Key findings from the research include that (1) traditional lime and cement stabilizers were far more effective than …
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The effects of groundwater seepage on stream regimen : a laboratory study
… slope of small streams were studied in two laboratory fumes. The larger fume is 20 feet long, 3t feet wide, and 18 inches deep; the smaller flume is 12 feet long, 6 inches wide, and 10 inches deep. Both flumes are equipped so that groundwater seepage through the stream bed can be controlled …
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Laboratory study of the effect of sea walls on beach erosion
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1996.
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Laboratory study of the atmospheric heterogeneous oxidation of benzo[a]pyrene
… by simulating atmospheric conditions in a laboratory environmental chamber and measuring the particle-phase species with an Aerodyne Mass Spectrometer (AMS). Kinetic parameters of each reaction were calculated and lifetimes against reaction in the atmosphere are estimated to be of 2.58 and …
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A laboratory study of solidification/stabilization technology for contaminated dredged material
Safe disposal of contaminated dredged material has become a significant issue especially as public environmental awareness and concerns increase. Solidification/ stabilization technology potentially may provide for a safer, more effective and more economical means of disposal. This research …
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A laboratory study of localized boundary mixing in a rotating stratified fluid
… with the ambient fluid is an open question. Laboratory experiments explore the interaction of mechanically induced boundary mixing and an interior body of linearly stratified rotating fluid. A single oscillating bar produces a small region of turbulence along the wall at middepth. Mixed fluid …
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A laboratory study of localized boundary mixing in a rotating stratified fluid
… with the ambient fluid is an open question. Laboratory experiments explore the interaction of mechanically induced boundary mixing and an interior body of linearly stratified rotating fluid. Turbulence is generated by a vertically oscillating horizontal bar, located at middepth along the tank …
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Greenhouse and laboratory study for the land application of water treatment residual
The disposal of water treatment residual has received little attention due to a lack of regulation, funding, and concern about their environmental impacts. Many treatment plants discharge alum residual directly into nearby water courses or dewater them for landfilling. If suitable land is …
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A laboratory study of factors affecting the applicability of direct filtration water treatment
The purposes of the study reported in this thesis were to determine the limiting raw water turbidity that could be treated using selected direct filtration treatment schemes and to compare the results of direct filtration and conventional water treatment. A dual media, granular filter employing …
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Pleural effusion and human immunodefeciency virus infection in adult Zambians : a clinical and laboratory study
A Clinical and laboratory study was carried out on 80 adult Zambian patients with pleural effusion in order to determine common features and to establish any association with human immunodeficiency virus (HIV) infection at the University Teaching Hospital, Lusaka. No such a study had been done …
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Comparative laboratory study of photoacclimation in selected dinoflagellate and diatom species of the Benguela ecosystem
… variables which can be evaluated in controlled laboratory experiments. The processes can be expressed in time scales from seconds to hours e.g. carbon to chlorophyll ratio changes over several hours. Photoacclimative responses in five species of dinoflagellates (Alexandrium catenella, …
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