Index Catalog // ScholarsArchive@OSU

Experimental Investigation of the Transition to Natural Convection in HTGR Applications using the Oregon State SFSETF

Creator:: Fishler, Joshua D.
Abstract:: High Temperature Gas Reactors (HTGRs) are positioned to disrupt local and global markets via their unique ability to produce carbon-free process heat, high efficiency power generation, and passively safe operational features. However, significant impediments still exist to delay deployment of this particular technology, including a lack of experimental data, verified...
Resource Type:: Dissertation
Full Text:: this particular technology, including a lack of experimental data, verified code application, and

Student views on science and the scientific process : studying changes made in a redesigned non-major introductory science course

Creator:: Price, Matthew F.
Abstract:: The purpose of this study was to understand how instruction in an introductory nonmajor astronomy course at Oregon State University affects how non-science majors view science and the scientific process. The study used research-based methods to design a reform-based lecture/lab course and implement it for students. Two top-level questions were...
Resource Type:: Dissertation
Full Text:: Changes Made in A Redesigned Non-Major Introductory Science Course by Matthew F. Price A

Computational nanooptics in hyperbolic metamaterials and plasmonic structures

Creator:: Thongrattanasiri, Sukosin
Abstract:: This dissertation concerns several problems in the fields of light interaction with nanostructured media, metamaterials, and plasmonics. We present a technique capable of extending operational bandwidth of hyperbolic metamaterials based on interleaved highly-doped InGaAs and undoped AlInAs multilayer stacks. The experimental results confirm theoretical predictions, exhibiting broadband negative refraction response...
Resource Type:: Dissertation
Full Text:: expected at ; each plot illustrate (a) , (b) , (c) , (d) , (e) , and (f

A microscopic study of the interaction between aliovalent dopants and native defects in group IV oxides : indium and cadmium in ceria and zirconia

Creator:: Zacate, Matthew O.
Abstract:: In order to understand better the defect structure and dynamics associated with lower valent dopants complexed with native defects in group IV oxides, In/Cd perturbed angular correlation spectroscopy was performed in ceria and zirconia. Examining the orientation symmetry axis of defects in ceria single crystals at low temperature has allowed...
Resource Type:: Dissertation
Full Text:: A microscopic study of the interaction between aliovalent

Sub-diffraction light propagation and imaging in planar negative refraction waveguides

Creator:: Wangberg, Robyn
Abstract:: In this dissertation we study the electromagnetic properties of planar waveguides with non-magnetic strongly anisotropic dielectric cores. We develop an analytical description of the mode propagation in these systems and show that the index of refraction can be either positive or negative depending on the specific material parameters. Propagating modes...
Resource Type:: Dissertation
Full Text:: placed a distance f to the left of the slab at the origin. The arrows depict the ray paths from the

Electromagnetic properties of anisotropic plasmonic metamaterials

Creator:: Elser, Justin Lee
Abstract:: In this dissertation we study the electromagnetic properties of plasmonic metamaterials. We develop an analytical description to solve the fundamental problem of free-space scattering in planar plasmonic systems by utilizing anisotropic metamaterials. We show with exact numerical simulations that these manufactured materials do completely eliminate the scattering, and even in...
Resource Type:: Dissertation
Full Text:: : Electromagnetic Properties of Anisotropic Plasmonic Metamaterials Abstract approved: Viktor A. Podolskiy In

Design, construction, and characterization of a neutron depth profiling facility at the Oregon State University TRIGA® reactor with an advanced digital spectroscopy system

Creator:: Robinson, Joshua A.
Abstract:: In this work, Neutron Depth Profiling (NDP) analysis capability has been added to the Oregon State University TRIGA® Reactor Prompt Gamma Neutron Activation Analysis Facility (PGNAA). This system has been implemented with an advanced digital spectroscopy system and is capable of rise time pulse shape analysis as well as coincidence...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Joshua A

Preliminary framework for the run-ahead predictive simulation software (RAPSS)

Creator:: Makinson, Kevin A.
Abstract:: The Run-Ahead Predictive Simulation Software (RAPSS) is an architecture designed for faster-than-real-time decision support for operators of complex networks. To enable further development of the RAPSS methodology, the necessary proof of principle is illustrated in two applications: decision support for shift technical advisors in nuclear power plant control rooms (RAPSS-STA),...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Kevin A

A theoretical description of anisotropic chemical association and its application to hydrogen-bonded fluids

Creator:: Peery, Travis B.
Abstract:: The thermodynamic and structural effects of highly anisotropic, short-ranged attraction are investigated for single- and four-site interaction models using Wertheim's multi-density graph theory of chemical association. Both models consist of associating hard spheres, where the saturable attraction sites are described by conical wells centered in the hard core and evaluated...
Resource Type:: Dissertation
Full Text:: degree of Doctor of Philosophy in Physics presented on May 20, 2003. Title: A Theoretical Description

Creating Community: A Case Study of Students’ Experiences in Inquiry-Based Learning

Creator:: Schaub, Branwen
Abstract:: We now have broad consensus in the mathematics education research community that active, inquiry-based classrooms provide a wealth of learning benefits for students (Freeman et al., 2014; Laursen et al., 2014; Theobald et al., 2020). Classrooms that utilize inquiry throughout the entire structure of the course, as opposed to the...
Resource Type:: Dissertation
Full Text:: : Creating Community: A Case Study of Students’ Experiences in Inquiry-Based Learning. Abstract

ScholarsArchive@OSU

Experimental Investigation of the Transition to Natural Convection in HTGR Applications using the Oregon State SFSETF

Student views on science and the scientific process : studying changes made in a redesigned non-major introductory science course

Computational nanooptics in hyperbolic metamaterials and plasmonic structures

A microscopic study of the interaction between aliovalent dopants and native defects in group IV oxides : indium and cadmium in ceria and zirconia

Sub-diffraction light propagation and imaging in planar negative refraction waveguides

Electromagnetic properties of anisotropic plasmonic metamaterials

Design, construction, and characterization of a neutron depth profiling facility at the Oregon State University TRIGA® reactor with an advanced digital spectroscopy system

Preliminary framework for the run-ahead predictive simulation software (RAPSS)

A theoretical description of anisotropic chemical association and its application to hydrogen-bonded fluids

Creating Community: A Case Study of Students’ Experiences in Inquiry-Based Learning

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