Endotoxin is a part of the cell wall of gram-negative
bacteria, consisting of serotype-specific polysaccharide,
core oligosaccharide, and lipid A. Lipid A is responsible
for an array of pathophysiologic reactions in animal hosts.
Amebocyte lysate originated from Limulus polyphemus
(horseshoe crab) has been used extensively in various assay
systems to...
A modem Flexible Manufacturing Cell (FMC) usually consists of several Distributed Control Systems (DCS). Modeling and evaluating a manufacturing integrated system and then translating the models to operational programs are important steps in implementing a FMC. Monitoring and enhancing a FMC's manufacturing process quality is another critical issue. An embedded...
Tipburn is a widespread physiological disorder of cabbage and
lettuce, caused by calcium deficiency. Symptoms of tipburn are
necrosis on margins of outer and inner head leaves in lettuce,
whereas in cabbage it is only on margins of inner leaves. Tipburn
on outer leaves may develop early, but symptoms remain...
It is essential to study the relationship between environmental features and human land-use activities that can provide a better understanding of human-environment interactions. In a response, this dissertation addresses the human-environment issues from different perspectives in three essays. The first essay conducts an integrated analysis to investigate the impacts of...
Water scarcity and extreme weather present substantial risks for agricultural production on the U.S. West Coast. Farmers adapt to water supply uncertainties and climate risks by changing water application rates, adjusting irrigated acres, adopting more efficient irrigation technology, and altering crop mix. Many policy options are available to attain sustainable...
Recent climate change forecasts have aroused growing interest in the influence of water
scarcity and climate on agricultural production and irrigation practice. However, it is common in
the economic literature to aggregate disparate crops when modeling irrigation choices. That
approach confounds the crop-specific effects of climate and water scarcity that...
Some of the next generation of small modular reactors have been designed with helically coiled steam generators integrated into the reactor vessel to enhance natural circulation. According to the developers of TASS/SMR, a one-dimensional thermal hydraulic code written to model the Korean Atomic Energy Research Institute's SMART reactor, the Žukauskas...
A mechanistic based critical heat flux (CHF) correlation has been developed derived from a mass, momentum, and energy balance at a nucleation site for water. The trigger mechanism for the CHF condition is postulated to be related to the maximum boiling frequency on a heated surface. It is observed that...
This study develops theoretical and empirical models to analyze the
motivations and outcomes of Oregon business decisions for voluntary
environmental management. More specifically, the following issues are explored
in this study: What motivates a facility to over-comply with environmental
regulations? Why does a facility adopt an environmental management plan
(EMP)?...