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Now showing items 121-130 of 437
Radiation interchange modeling for active infrared proximity sensor design
(Texas A&M University, 1999)
The objective of this research was to create mathematical models suitable for use in the design and operation of active optical proximity sensors based on infrared optoelectronic components. Computer simulation using Monte ...
Comparison of benthic macroinvertebrate assemblages associated with salt marshes in low and high salinity areas of Galveston Bay
(Texas A&M University, 1999)
Two study areas in Galveston Bay, Texas were chosen to assess the species composition and abundance of benthic macroinvertebrates in salt marshes that are utilized by juvenile brown shrimp. The objectives of the study were ...
Investigation into resistance to experimental Salmonella challenge in neonatal leghorn chickens
(Texas A&M University, 1999)
The purpose of the following studies was to investigate selected mechanisms of resistance to Salmonella typhimurium or S. enteritidis experimental challenge in neonatal Leghorn chickens. Immunoprophylaxis of Salmonella ...
Farm level technology assessment in Sub-Saharan Africa: a case study in Mali
(Texas A&M University, 1999)
The agricultural sector in Sub-Saharan Africa has been the beneficiary of significant expenditures for technology improvements. However, the implementation of the technologies that have been developed for the Sub-Sahara ...
Pyridine sorption to mineral surfaces: a fourier transform infrared spectroscopy study
(Texas A&M University, 1999)
Sorption of organic contaminants affects their bioavailability and therefore the success of biodegradation in the subsurface. The bioavailability of complex mixtures in low organic matter environments is affected by the ...
Problems associated with the establishment of a whole body counter at a university reactor
(Texas A&M University, 1999)
A widd variety of difficulties can arise in bringing a ics. whole body counting chair into operation for screening radiation workers. Problems can arise in the mechanical operation of the chair, in fabrication of phantom ...
An iterative technique for refinement of selective excitations for magnetic resonance imaging
(Texas A&M University, 1999)
Selective RF pulses are needed or many application in magnetic resonance imaging (MRI). The desired excitation profile is omen used as the spectrum of the applied RF pulse; the modulation waveform of the RF pulse which ...
Dense gas dispersion modeling for aqueous releases
(Texas A&M University, 1999)
Production, transportation, and storage of hazardous chemicals represent potential risks to the environment, the public, and the producers themselves. The release to the atmosphere of materials that may form mixtures denser ...
A new and efficient error resilient entropy code for image and video compression
(Texas A&M University, 1999)
Image and video compression standards such as JPEG, MPEG, H.263 are severely sensitive to errors. Among typical error propagation mechanisms in video compression schemes, loss of block synchronization causes the worst ...
Characterization of a 20 curie, cesium-137 irradiator
(Texas A&M University, 1999)
The Department of Energy Laboratory Accreditation Program (DOELAP) located at the Radiological and Environmental Sciences Laboratory (RESL) at Idaho National Engineering and Environmental Laboratory is charged with evaluating ...