Index Catalog // ScholarsArchive@OSU

Special Nuclear Material Classification and Mass Content Estimation Using Temporal Gamma-Ray Spectroscopy and Machine Learning Methods

Creator:: Curtis, Jessica R.
Abstract:: Improving the methods used for the detection and estimation of fissile material mass content is essential to nuclear security and safeguards to ensure special nuclear material (SNM) accountability, control, safety and security. With the continued expansion of the nuclear industry and the need for safe management of spent fuel, improving...
Resource Type:: Dissertation
Full Text:: and encouragement to see it through. I am extremely grateful to my advisor and mentor, Dr. Steve

Calcite dissolution in sediments of the Ontong-Java Plateau : In situ measurements of pore water O₂ and pH

Creator:: Hales, Burke and Emerson, Steve
Abstract:: We present in situ electrode measurements of sediment resistivity, pore water oxygen, and pore water pH from three stations between 2300 and 3000 m depth on the Ontong-Java Plateau in the western equatorial Pacific. One of these stations is also the site of a concurrent benthic chamber incubation experiment [Jahnke...
Resource Type:: Article
Full Text:: University, Palisades, New York Steve Emerson School of Oceanography, University of Washington, Seattle

Family Planning Policies in Sub-Saharan Africa: Failure of Policy Transfer

Creator:: Daniel Andrianaivosoa, Landy Miary
Abstract:: After Colonization and since the beginning of the globalization era, governments in developing countries have been restricted in implementing certain policies and reforms, often being forced to accept or borrow policies from former colonizers or other developed countries and non-governmental organizations (NGOs). Previous studies found that borrowing policy often leads...
Resource Type:: Capstone Project
Full Text:: June 7, 2016 APPROVED: Patrick Emerson, representing Economics Elizabeth

The relationship of exchange acidity and exchangeable aluminum in limed and unlimed profile samples of soil from western Oregon to the yield and chemical composition of alfalfa

Creator:: Janghorbani, Morteza
Abstract:: Acidity distribution within any given soil profile is dependent on mineralogical make-up of the parent material as well as environmental conditions prevalent during the weathering history of the soil. An experiment was designed to study the distribution pattern of exchange acidity, exchangeable aluminum, exchangeable manganese and pH of six acid...
Resource Type:: Masters Thesis
Full Text:: WESTERN OREGON TO THE YIELD AND CHEMICAL COMPOSITION OF ALFALFA Abstract approved Steve Roberts

Addressing Free Ridership and the Provision of Hidden Public Goods : Using an Experimental Randomized Control Trial to Test the Nation's Willingness to Pay for the Columbia River Levee System in the Portland Metro Area During an Era of Localism

Creator:: Crawford, Tessa E.
Abstract:: Levee management has historically been considered a local governance issue. Many users of the Portland International (PDX) airport may have no knowledge that the airport is in a floodplain and is protected by a hundred year old levee. This study asked survey respondents across the U.S. how much they would...
Resource Type:: Capstone Project

Vanadium in foraminiferal calcite as a tracer for changes in the areal extent of reducing sediments

Creator:: Hastings, David W., Emerson, Steven R., and Mix, Alan C.
Abstract:: We have used the vanadium concentration in cleaned foraminiferal calcite as a tracer of seawater V changes in the past. Since the benthic flux of vanadium is sensitive to the redox potential of sediments, changes in the vanadium concentration of seawater should be a reflection of changes that control the...
Resource Type:: Article
Full Text:: sediments David W. Hastings1 and Steven R. Emerson School of Oceanography, University of Washington

Limiting Behavior of Stochastic Processes Involving Martingale Structures

Creator:: Mukherjee, Arpita
Abstract:: A stochastic process is given by a family of random variables indexed by elements of a set. We have considered stochastic processes of three different types, each involving an associated martingale structure. Martingale is a sequence of random variables for which the conditional expectation at a certain time point given...
Resource Type:: Dissertation
Full Text:: student life. I would like to thank Prof. Lisa Madsen, Prof. Sarah Emerson, and Prof. Mike Rosulek for

Domain-Independent Planning for Markov Decision Processes with Factored State and Action Spaces

Creator:: Raghavan, Aswin
Abstract:: Markov Decision Processes (MDPs) are the de-facto formalism for studying sequential decision making problems with uncertainty, ranging from classical problems such as inventory control and path planning, to more complex problems such as reservoir control under rainfall uncertainty and emergency response optimization for fire and medical emergencies. Most prior research...
Resource Type:: Dissertation

Ecophysiology of Marine Bivalves : Physiological Rate Processes in Dynamic Environments

Creator:: Gray, Matthew W.
Abstract:: Marine bivalves are globally recognized as ecologically and commercially valuable species and, for over a century, researchers have been studying their feeding, digestion and other related physiological processes. These studies have shown that marine bivalves have complex feeding and particle processing behaviors to maximize growth in dynamic environmental conditions. Additionally,...
Resource Type:: Dissertation
Full Text:: committee. Many thanks to Dr. Steve Rumrill who has been a constant supporter of my work and one of my

Drug Discovery and Chemical Ecology Investigations of Specialized Metabolism in Tolypocladium and Paraisaria

Creator:: Tehan, Richard M.
Abstract:: Since the discovery of penicillin in 1928, the fungal kingdom has remained a fertile source for the discovery of new, biologically active, natural products. Further, as natural products continue to be discovered from fungi, a deeper understanding of the critical role of specialized metabolism in fungal ecology is afforded. The...
Resource Type:: Dissertation
Full Text:: Emerson for guiding my graduate education. I would especially like to thank Drs. Spatafora and Philmus

ScholarsArchive@OSU

Special Nuclear Material Classification and Mass Content Estimation Using Temporal Gamma-Ray Spectroscopy and Machine Learning Methods

Calcite dissolution in sediments of the Ontong-Java Plateau : In situ measurements of pore water O₂ and pH

Family Planning Policies in Sub-Saharan Africa: Failure of Policy Transfer

The relationship of exchange acidity and exchangeable aluminum in limed and unlimed profile samples of soil from western Oregon to the yield and chemical composition of alfalfa

Addressing Free Ridership and the Provision of Hidden Public Goods : Using an Experimental Randomized Control Trial to Test the Nation's Willingness to Pay for the Columbia River Levee System in the Portland Metro Area During an Era of Localism

Vanadium in foraminiferal calcite as a tracer for changes in the areal extent of reducing sediments

Limiting Behavior of Stochastic Processes Involving Martingale Structures

Domain-Independent Planning for Markov Decision Processes with Factored State and Action Spaces

Ecophysiology of Marine Bivalves : Physiological Rate Processes in Dynamic Environments

Drug Discovery and Chemical Ecology Investigations of Specialized Metabolism in Tolypocladium and Paraisaria

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