Index Catalog // ScholarsArchive@OSU

Evaluation of partial discharge in inverter driven medium voltage propulsion coils

Creator:: Ramme, André
Abstract:: Advancements in power electronics to higher power levels and faster switching times allow new machine and systems designs, but also create higher stresses on electric machinery insulation. High performance, pulse-width modulated (PWM) inverters are now available for medium voltage drive systems, and are being considered by the U.S. Navy as...
Resource Type:: Dissertation
Full Text:: . If this process is to be successful, a necessary component will be to understand the impact of

Assessing and evaluating the energy and angular dependence of the Self-indicating Instant Radiation Alert Dosimeter (SIRAD)

Creator:: Bak, Alysse K.
Abstract:: The Self-indicating Instant Radiation Alert Dosimeter, SIRAD™, manufactured by JP Labs*, is a dosimeter that can be used by emergency response persoimel. It is a user-friendly, inexpensive, and disposable radiation dosimeter. It monitors high doses, 5-200 rads, of ionizing radiation. The card resembles the size of a credit card and...
Resource Type:: Masters Thesis
Full Text:: (SIRAD). Abstract approved: Kathryn A. Higley The Self-indicating Instant Radiation Alert Dosimeter

Comparison of object detection and image quality between conventional digital mammography and digital breast tomosynthesis through contrast measurements and phantom image evaluation

Creator:: Leek, Angela E.
Abstract:: Advancements in digital detector technology over the past decade have facilitated the transition of mammography image acquisition from film screen to full field digital applications. Nearly 90% of the mammography performed in the United States utilizes digital imaging technologies. The ability to capture the image information in an electronic format...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________ Kathryn A. Higley Advancements in digital detector technology over the past decade have

Experiments into plasma physics

Creator:: Smith, Christopher S.
Abstract:: Our research was focused mainly on the field of plasma physics and the creation of plasmas in a laboratory environment. We first began our project with the goal to develop a tabletop Tokamak, a doughnut shaped device that magnetically confines plasmas at pressures greater than one atmosphere. After researching this...
Resource Type:: Honors College Thesis
Full Text:: the creation of plasmas in a laboratory environment. We first began our project with the goal to

Integrated Spatial and Temporal Stochastic Model in Radiation Biology : Design, Implementation, and Application

Creator:: Liu, Ruirui
Abstract:: Mathematical modeling plays a pivotal role in understanding the mechanism of radiation-induced cellular effects, and also in quantifying the radiation risk to the cell. However, there are still compelling challenges facing the conventional modeling in radiobiology, such as lacking a generalized theory structure of quantifying target effect and non-target effect...
Resource Type:: Dissertation
Full Text:: Application Abstract approved: Kathryn A. Higely Mathematical modeling plays a pivotal role in

Design, construction, and analysis of a skin contamination dosimeter

Creator:: Cazalas, Edward J.
Abstract:: International recommendations provided by the International Commission on Radiation Protection (ICRP), as well as national regulations, set by the U.S. Nuclear Regulatory Commission (NRC), state that the exposure of skin to highly concentrated radioactive sources should be monitored at specified depths in skin and kept below specific dose equivalence levels....
Resource Type:: Masters Thesis
Full Text:: !"#!$%&'!(&#)*#&+,%-%#)*# # ,./01.#23#(040506#781#9:;#.;<1;;#87#=069;1#87#%>?;@>;#?@#"A>5;01#,@

Steady-State Computational Fluid Dynamics Analysis of a Quarter-Core Liquid Metal-hydride Cooled Microreactor

Creator:: Stevens, Kaeley R.
Abstract:: This thesis assessed the passive, natural circulation, design for a Bi-Ca-CaH2 cooled microreactor based on initial figures of merit. The values for the figures of merit selected for this thesis were: the maximum temperature in the core should not be more than 150 K above the average core outlet temperature,...
Resource Type:: Masters Thesis
Full Text:: -State Computational Fluid Dynamics Analysis of a Quarter-Core Liquid Metal- hydride Cooled Microreactor

Synthesis and testing of a novel soft donor organic extractant molecule for targeted soft metal extraction from aqueous phases

Creator:: Gullekson, Brian J.
Abstract:: Spent nuclear fuel (SNF) resultant from the generation of nuclear power is a chemically and radiologically diverse system which is advantageous to chemically process prior to geologic disposal. Hydrometallurgy is the primary technology for chemical processing for light water reactor spent fuels, where spent fuel is dissolved in an acid...
Resource Type:: Masters Thesis
Full Text:: Synthesis and Testing of a Novel Soft Donor Organic

A Direction-Sensitive Radiation Detector for Low-Altitude, UAV-based Radiological Source Search

Creator:: Becker, Eric M. (Eric Matthew)
Abstract:: Many devices and methods for radiological searches are currently being developed, including scanning using simple detectors, mapping using large-volume detectors, and Compton imaging using 3-D position sensitive detectors. However, these devices are typically expensive and the methods used require long periods of time to generate a direction or location. The...
Resource Type:: Dissertation
Full Text:: A Direction-Sensitive Radiation Detector for Low-Altitude

Comprehensive Characterization of Motion of a Helical Coil Due to Flow Induced Vibration

Creator:: Harmon, Paul L.
Abstract:: Mechanical vibrations compromise the integrity of key components of thermal power plants. Without careful design, strong resonances during steady state operation can wear these components to the point of failure, leading to an unsafe situation that may force a plant to shut down. The purpose of this research is to...
Resource Type:: Masters Thesis
Full Text:: Comprehensive Characterization of Motion of a Helical Coil Due

ScholarsArchive@OSU

Evaluation of partial discharge in inverter driven medium voltage propulsion coils

Assessing and evaluating the energy and angular dependence of the Self-indicating Instant Radiation Alert Dosimeter (SIRAD)

Comparison of object detection and image quality between conventional digital mammography and digital breast tomosynthesis through contrast measurements and phantom image evaluation

Experiments into plasma physics

Integrated Spatial and Temporal Stochastic Model in Radiation Biology : Design, Implementation, and Application

Design, construction, and analysis of a skin contamination dosimeter

Steady-State Computational Fluid Dynamics Analysis of a Quarter-Core Liquid Metal-hydride Cooled Microreactor

Synthesis and testing of a novel soft donor organic extractant molecule for targeted soft metal extraction from aqueous phases

A Direction-Sensitive Radiation Detector for Low-Altitude, UAV-based Radiological Source Search

Comprehensive Characterization of Motion of a Helical Coil Due to Flow Induced Vibration

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