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Now showing items 71-80 of 334
Student-centered Teaching In The Chemistry Classroom
(Oklahoma State University, 2008-05-01)
Science education in the United States has become of dire importance amidst the faltering economy and need for national security, yet calls for reform over the last three decades have done little to improve the situation. ...
Alternative Production Systems for Traditional Monoculture Wheat Acres in the Southern Plains for Two Farm Sizes
(Oklahoma State University, 2008-05-01)
The net returns of five alternative cropping systems, forconventional tillage and no-till, for two farm sizes; 640-acres and 2,560-acreswere determined. The five cropping systems included: early September wheatfor dual-purpose ...
Sensor Based Modeling of Chemical Mechanical Planarization (Cmp) of Copper For Semiconductor Applications
(Oklahoma State University, 2008-05-01)
Material removal rate (MRR) and surface quality in copper CMP (Cu-CMP) process are highly sensitive to slurry chemistry parameters, namely, pH, and concentrations of complexing, corrosion inhibiting, and oxidizing agents. ...
Effect of Blueberries on Lipid Parameters of Ovariectomized Rats
(Oklahoma State University, 2008-05-01)
Cardiovascular disease (CVD) is a leading cause of death in the nation with an associated annual health care cost of approximately 448 billion. In women, risk for CVD drastically increases when they reach menopause, partly ...
Sulfur Dynamics and Activities of Sufur-Transforming Enzymes in Prairie Soils Under Different Management Practices
(Oklahoma State University, 2008-12-01)
The aim of this study was to evaluate the effects of long-term management practices on microbial properties and biochemical processes related to sulfur cycling of semiarid prairie soil ecosystems, and to reveal the drivers ...
Essays on business location, recruitment, and the role of evaluations in the university classroom
(2008-07)
Scope and Method of Study: The purpose of the first essay is to determine the impact of the North American Free Trade Agreement on location decisions of U.S. confectionery manufacturers using county level data from 1993 ...
Predicting the Perceived Interest Of Objects in Images
(Oklahoma State University, 2008-07-01)
This thesis presents an algorithm designed to compute the perceived interest of objects in images based on results of a psychophysical experiment. We measured likelihood functions via a psychophysical experiment in which ...
Indirect Measurement Of Crop Plant Height
(Oklahoma State University, 2008-05-01)
Expressed variation within production agriculture fields changes from year to year. Fast, real time, and inexpensive methods in precision agriculture are being developed to account for in-field variation in crop management ...
Process Simulation, Modeling & Design for Soybean Oil Extraction Using Liquid Propane
(Oklahoma State University, 2008-12-01)
This study investigates the use of liquid propane for soybean oil extraction and the use of commercial software for process modeling and simulation. Soybean oil extraction using liquid propane is feasible and requires lower ...
Normalized difference vegetative index based crop yield prediction models to minimize nitrogen fertilizer application
(2008-12)
Scope and Method of Study: The purpose of this study was to develop a theoretical basis and numerical strategy to optimize nitrogen (N) fertilizer application and thereby improve crop yield potential models, increase ...