Application of automatic production techniques to the fabrication
of semiconductor devices has been somewhat limited by the requirements
of conventional alloying techniques. These alloying techniques
require an excessive amount of individual handling.
This thesis investigates the feasibility of applying percussive
welding to the fabrication of metal-semiconductor contacts, as a
solution...
The torsion test was evaluated as a method for determining the shear
strength of full-size structural lumber. The evaluation involved an experimental
length study, an experimental depth study, and a finite element study.
The length study consisted of fifty nominal 2x4 specimens, ten specimens
for each length, and ten American...
Wildfire is a largely terrestrial perturbation broadly recognized as an agent of disturbance and ecological change in forested biomes. Effects of post-fire conditions on biotic components of aquatic systems have been less well-documented, although hypothetically, the two are strongly connected. In fact, the influence of wildfire may be most profound...
In the most recent decades, there has been extensive loss of seagrasses within the Indian River Lagoon estuary on the eastern coast of Florida. This decline poses a significant threat to the ecological function of the ecosystem, as well as to the social and economic wellbeing of the surrounding communities....
An analysis was conducted to test current theories
regarding education, income, and marital satisfaction as
determinants of parenting in different ways for men and
women. The gender specific issues in parenting to be tested
were: 1) Education is positively related to parental
involvement for both men and women. 2) Marital...
North American beavers (Castor canadensis) are ecological engineers that improve biodiversity and can improve the health of riparian ecosystems. Beavers are generalist herbivores with some evidence of species preference, utilizing woody material for both food source and dam construction. In the South Slough National Estuarine Research Reserve, Charleston, Oregon, a...
The ability to quickly generate torque of the triple extensors is critical during rapid movements, especially when there is not enough time to reach peak torque. Rate of torque development (RTD), which is the rate of rise of the torque-time curve, is a commonly used measure of rapid torque generation....
The nervous system has an integral role in rapid torque production of the lower extremity, which is often necessary for proper motor response to a dynamic environment. The nervous system is complex with numerous pathways, including spinal motor control networks, which influence the ability to move. However, few studies have...
Falls are a common problem among older adults, including those who are relatively healthy and living independently. Exercise has been recommended as an intervention to reduce falls by slowing and/or reversing age-related declines in balance, strength, and mobility. However, it remains unclear which types or combinations of programs are most...
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SamuelT. Johnson
Falls are a common problem among older adults, including those who are
Managing invasive species is vital to preserving native species and maintaining the integrity of environments and ecological roles. Rats are one of the most prolific and intrusive invasive species that have successfully cohabitated with humans over centuries as we have expanded and advanced our societies. Thus, rats have historically been...