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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
111

Do students' thinking styles predict students' motivation and performance in project learning?

Ng, Siu-ping, Connie January 2004 (has links)
published_or_final_version / abstract / toc / Educational Psychology / Master / Master of Social Sciences
112

Moire interferometry for out-of-plane displacement measurement

張滿堂, Cheung, Mun-tong. January 1989 (has links)
published_or_final_version / Mechanical Engineering / Master / Master of Philosophy
113

Finite element solution on microcomputers

梁耀華, Leung, Yew-wah. January 1989 (has links)
published_or_final_version / Civil and Structural Engineering / Master / Master of Philosophy
114

Molecular clusters on surfaces: a Monte Carlostudy

黃柄榕, Wong, Ping-yung. January 1999 (has links)
published_or_final_version / Physics / Master / Master of Philosophy
115

A finite element condensation scheme /

Soliman, Abdel-Hamid Aly January 1977 (has links)
No description available.
116

Bioaccumulation of sediment-associated contaminants in freshwater organisms: Development and standardization of a laboratory method

Van Geest, Jordana 05 October 2010 (has links)
This thesis describes studies and research conducted as part of the development, standardization, and validation of a new laboratory protocol for measuring the bioaccumulation of sediment-associated contaminants in freshwater organisms. The test species used in this method are the oligochaete Lumbriculus variegatus, the mayfly nymph Hexagenia spp., and the juvenile fathead minnow Pimephales promelas. Bioaccumulation methods in the literature were critically reviewed to properly guide the development and standardization of methods. This enabled data gaps to be addressed and the conditions and exposure techniques of the new method to be standardized, properly justified, and based on experimental evidence. Method development included the investigation of the effect of the density of organisms on bioaccumulation in the three test species. The importance of standardizing loading density to total organic carbon (TOC) in sediment was demonstrated, as was the appropriateness of using a ratio of TOC to organism dry weight of 27:1 as a standard loading density for the different test species. To validate the new method and assess the relative effectiveness of the three test species for accumulating different contaminants, a variety of field-contaminated sediments were tested, representing a range of contaminants, levels of contamination, and physical properties of sediment. It was observed that differences in bioaccumulation between the three species may, but do not always, exist, and can vary with contaminant and sediment type. It was also demonstrated that estimates of bioaccumulation, such as biota-sediment accumulation factors (BSAFs), can be species- and site-specific, supporting the need and use of standardized bioaccumulation methods and test species to facilitate comparisons across sites or over time. Comparisons of laboratory- and field-based estimates of bioaccumulation further validated the new laboratory method. Good agreement was observed between laboratory and field estimates for fish, while bioaccumulation was higher in laboratory-exposed invertebrates compared to mussels caged in situ. The laboratory method generally overestimated the relative bioavailability of contaminants compared to the field, but provides a conservative estimate of bioaccumulation. A kinetic study investigated the uptake and elimination of PCBs in the three test species and demonstrated that a 28-d test duration was a sufficient standard for both invertebrate species to reach steady-state concentrations. There was conflicting evidence of whether steady-state concentrations were truly reached in the fish and uncertainty remains as to the appropriateness of a 28-d test for these organisms, for which additional testing is necessary.
117

Interpretation of Southern Georgia coastal plain velocity structure using refraction and wide-angle reflection methods

Harsha, Senusi Mohamed 05 1900 (has links)
No description available.
118

Interaction of stress waves and cracks using a second order accurate finite difference method

Latham, Ralph Leonard 12 1900 (has links)
No description available.
119

An experimental approach by "shadow moire method" with application on cornea deformation

Deng, Xiao Qi 08 1900 (has links)
No description available.
120

Stiffness determination of elastomeric O-rings using the finite element method

English, Capel C. 05 1900 (has links)
No description available.

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