Now showing items 1-10 of 42
Enhancement of the low frequency sound absorption of porous materials by addition of a thin high flow-resistivity cover layer
The general performance of a porous material against a rigid backing shows very good absorption qualities at high frequencies, but at lower frequencies, where the thickness becomes much less than a wavelength of sound, the ...
Hybrid semiconductor nanomagnetoelectronic devices
The subject of this dissertation is the exploration of a new class of hybrid semiconductor nanomagnetoelectronic devices. In these studies, single-domain nanomagnets are used as the gate in a transistor structure, and the ...
Robust microbial fabrication of plant pharmaceuticals: Complexities and solutions
Abstract not available.
Degradation of 17alpha-ethinylestradiol in wastewater treatment systems
The existence and persistence of estrogenic chemicals in aquatic environments is a problem that may affect public and ecosystem wellness. For this reason, it is of major concern, and being investigated by those in the field ...
Development of a framework to account for uncertainty sources in modeling toxic concentrations in the Niagara River
The Niagara River is an important natural resource for drinking water and inexpensive hydroelectric power production. However, the quality of its water is less than pristine. Past lax management of toxic waste has left ...
Terahertz spectroscopy of semiconductor nanostructures
Electromagnetic waves centered at a frequency of 1 terahertz (THz) lie between the realms of photonics and electronics. Only recently have techniques been established to generate and detect electromagnetic waves in this ...
Fixed points in the dynamics of an agricultural pest model
This thesis describes the fixed point structure and dynamics of a simple deterministic population model for an insect pest on an agricultural crop. The crop is a mixture of stands of genetically modified plants that are ...
Magnetotransport study of a high mobility two-dimensional electron gas
This thesis is focused on an experimental study of the electrical properties of a two-dimensional electron gas formed in a GaAs/AlGaAs heterostructure. Low temperature magneto-transport measurements are used to characterize ...
Electrochemical performance and discharge mechanism of silver vanadium phosphorous oxide
Silver Vanadium Phosphorous Oxide (SVPO), Ag 2 VO 2 PO 4 , as an active electrode material has several good electrochemical properties which are large capacity, high current capability, and effective delivery of high current ...
Design, performance analysis, and optimization of a new X-ray detector for region of interest angiography and fluoroscopy for implementation in neurovascular interventional procedures
Image guided neuro-interventions require high spatial resolution, about 4 to 10 lp/mm, for visualization of small vessels called perforators which maybe 50-300 μ m in diameter, and for precise localization of interventional ...