Index Catalog // ScholarsArchive@OSU

A direct-drive wave energy converter with contactless force transmission system

Creator:: Agamloh, Emmanuel B.
Abstract:: Commonly proposed ocean wave energy converters (OWEC) use inefficient and maintenance demanding intermediate hydraulic and pneumatic systems. We propose a novel rotary direct-drive OWEC that eliminates these intermediate stages. The new device employs a contactless force transmission system (CFTS) comprising a “piston” and a “cylinder” and a ball screw to...
Resource Type:: Dissertation
Full Text:: Double float system …………………………. 30 TABLE OF CONTENTS (Continued) Page

Use of nondestructive spectroscopy to assess chlorophyll and nitrogen in fresh leaves

Creator:: Ding, Pinghai
Abstract:: Four aspects of factors influencing the accuracy of nondestructive chlorophyll (Chl) and nitrogen (N) measurement in fresh leaves were studied: (1) optimum wavelength (OW) identification; (2) indices development and evaluation; (3) influence of leaf properties; and (4) influence of meter parameters and sampling technique. Results were used to develop indices...
Resource Type:: Dissertation
Full Text:: . Plant for contributing ideas, allowing me the freedom to use their laboratory equipment, providing

Enhancing community college revenue sources by leveraging land resources

Creator:: Scott, Cheryl L.
Abstract:: Community colleges are experiencing a decline in state allocated funding. Traditionally, college administrators look for ways to cut expenditures and raise tuition and fees to make up for the shortfall. Using available land resources to generate a revenue stream may provide revenue for community colleges. The purpose of this study...
Resource Type:: Dissertation
Full Text:: : RESEARCH DESIGN ........................................................................30 METHODOLOGY

Population demography, resource use, and movement in cooperatively breeding Micronesian Kingfishers

Creator:: Kesler, Dylan C.
Abstract:: Island systems and species are susceptible to extinction because of their small population size and an ecological naiveté from an evolutionary past lacking strong competition and predation. For example, only one-fifth of the world’s bird species occur on islands, yet more than 90% of the avian extinctions witnessed during historic...
Resource Type:: Dissertation
Full Text:: resources at both the landscape and home range scale. Higher population densities are associated with

Expression and Function of Populus Homologs to TERMINAL FLOWER 1 Genes: Roles in Onset of Flowering and Shoot Phenology

Creator:: Mohamed, Rozi
Abstract:: We isolated and characterized the expression of two genes from Populus trichocarpa that are homologous to the TERMINAL FLOWER 1 (TFL1) gene from the model annual plant Arabidopsis. In Arabidopsis, overexpression of the TFL1 gene extends the vegetative growth phase, and the homozygous mutant tfl1 allele causes early flowering and...
Resource Type:: Dissertation
Full Text:: the model annual plant Arabidopsis. In Arabidopsis, overexpression of the TFL1 gene extends the

Biogeographic and experimental evidence for local scale dispersal limitation in central Panamanian forest birds

Creator:: Moore, Randall Phillips, 1965-
Abstract:: I examined the avian biogeography of the islands of Lago Gatun, Panama, in an effort to better understand the effects of forest fragmentation in this biodiverse region, and specifically to understand the importance of fragment isolation and the mechanism behind its effects on tropical bird distribution. I combined exhaustive surveys...
Resource Type:: Dissertation
Full Text:: have a very wide range of isolation values among fragments. Such a range of isolation values in

Grazing, nutrients, and marine benthic algae : insights into the drivers and protection of diversity

Creator:: Guerry, Anne D., 1973-
Abstract:: Two of the most powerful ways in which humans have altered ecosystems are by increasing productivity and changing the densities of important consumers. The bottom-up effects of productivity and the top-down effects of consumers have been identified as primary determinants of biological diversity, though the links between them remain unclear....
Resource Type:: Dissertation
Full Text:: (e.g. nutrient availability, evapotranspiration, plant biomass), are conducted over a wide range of

The relationships between fluctuations in oceanographic conditions, forage fishes, predatory fishes, predator food habits, and juvenile salmonid marine survival off the Columbia River

Creator:: Emmett, Robert L.
Abstract:: Salmonid run sizes are strongly affected by their early marine stage. Fully understanding the life history of salmonids means understanding how they interact with their marine environment and with other fishes. Changes in the biological and physical environment off the Columbia River region affects the distribution and abundance of predatory...
Resource Type:: Dissertation

Patterns and processes of sediment transport following sediment-filled dam removal in gravel bed rivers

Creator:: Stewart, Gregory B.
Abstract:: Dam removal is increasingly viewed as a river restoration tool because dams affect so many aspects of river hydrology, geomorphology, and ecology; but removal also has impacts. When a dam is removed, sediment accumulated over a dam’s lifetime may be transported downstream; and the timing, fate and consequences of this...
Resource Type:: Dissertation
Full Text:: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Site descriptions and drawdown / removal chronologies . . . . . . . . . . . . . . . . 30

Hispanic family diabetes project : a pilot intervention study

Creator:: White, Beverly B.
Abstract:: Changes in lifestyle over the last century have resulted in a dramatic increase in the incidence of diabetes in the United States (U.S.). Mexican-Americans, the largest Hispanic/Latino subgroup in the U.S., are 1.7x’s as likely to have diabetes as non- Hispanic Whites. Culturally appropriate approaches for treating diabetes in minority...
Resource Type:: Dissertation
Full Text:: . . . . . . . . . . . . . . . . 29 United Kingdom Prospective Diabetes Study (UKPDS) . . 30

ScholarsArchive@OSU

A direct-drive wave energy converter with contactless force transmission system

Use of nondestructive spectroscopy to assess chlorophyll and nitrogen in fresh leaves

Enhancing community college revenue sources by leveraging land resources

Population demography, resource use, and movement in cooperatively breeding Micronesian Kingfishers

Expression and Function of Populus Homologs to TERMINAL FLOWER 1 Genes: Roles in Onset of Flowering and Shoot Phenology

Biogeographic and experimental evidence for local scale dispersal limitation in central Panamanian forest birds

Grazing, nutrients, and marine benthic algae : insights into the drivers and protection of diversity

The relationships between fluctuations in oceanographic conditions, forage fishes, predatory fishes, predator food habits, and juvenile salmonid marine survival off the Columbia River

Patterns and processes of sediment transport following sediment-filled dam removal in gravel bed rivers

Hispanic family diabetes project : a pilot intervention study

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