Index Catalog // ScholarsArchive@OSU

A motor-generator and supercapacitor based system for microgrid frequency stabilization

Creator:: Crispo, Richard F.
Abstract:: This research introduces an energy storage system to deliver microgrid frequency response. A doubly-fed induction generator (DFIG) and a squirrel cage induction machine (SCIM) are coupled together as a motor/generator set to deliver an immediate inertial response to a change of frequency, and an inverter and supercapacitors deliver short term...
Resource Type:: Masters Thesis
Full Text:: . ©Copyright by Richard F. Crispo June 20, 2013 All Rights Reserved A Motor

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

A hierarchical neuro-evolutionary approach to small quadrotor control

Creator:: Shepherd, Jack F., III
Abstract:: Quadrotors are unique among Micro Aerial Vehicles in providing excellent maneuverability (as opposed to winged flight),while maintaing a simple mechanical construction (as opposed to helicopters). This mechanical simplicity comes at a cost of increased controller complexity. Quadrotors are inherently unstable, in the sense that they are essentially unflyable by a...
Resource Type:: Masters Thesis
Full Text:: F. Shepherd III A THESIS submitted to Oregon State University in partial fulfillment of the

Analysis and optimal sizing of an energy storage system for wind farm applications

Creator:: Yen, Zuan Z.
Abstract:: Modern wind energy is the technology of choice with a short payback period for increasing renewable energy portfolios. Bonneville Power Administration (BPA), a United States power authority in the Pacific Northwest expects to increase their wind energy capacity from 2,000 megawatts to 6,000 megawatts within the next five years. Currently...
Resource Type:: Masters Thesis
Full Text:: e R el at iv e F re qu en cy ( 0. 25 m /s ec b in s) Turbine A, Ave5 Turbine B

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

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

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

Radial Velocity Profiles and Magnetic Field Probes for Hypervelocity Plasma Deflagration Jets

Creator:: Rodriguez, Jesse A.
Abstract:: The fundamental physics of turbulence in plasma is not well understood. Recent studies of the plasma deflagration accelerator in the High Temperature Gasdynamics Lab at Stanford University have demonstrated the presence of small scale instabilities that limit the lifetime of the jet/Z pinch and are not reproduced by coaxial plasma...
Resource Type:: Honors College Thesis
Full Text:: Hypervelocity Plasma Deflagration Jets by Jesse Alexander Rodriguez A THESIS submitted to Oregon State

ScholarsArchive@OSU

A motor-generator and supercapacitor based system for microgrid frequency stabilization

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

A hierarchical neuro-evolutionary approach to small quadrotor control

Analysis and optimal sizing of an energy storage system for wind farm applications

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

Computational nanooptics in hyperbolic metamaterials and plasmonic structures

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

Electromagnetic properties of anisotropic plasmonic metamaterials

Radial Velocity Profiles and Magnetic Field Probes for Hypervelocity Plasma Deflagration Jets

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