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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
151

Aerodynamic drag reduction of a racing motorcycle through vortex generation

Angle, Gerald M., January 2002 (has links)
Thesis (M.S.)--West Virginia University, 2002. / Title from document title page. Document formatted into pages; contains xvi, 137 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 87-89).
152

Effects of spanwise and discrete disturbances on separating boundary layers on low pressure turbine blades /

Reimann, Daniel D., January 2007 (has links) (PDF)
Thesis (M.S.)--Brigham Young University. Dept. of Mechanical Engineering, 2007. / Includes bibliographical references (p. 75-77).
153

A computational study for the utilization of jet pulsations in gas turbine film cooling and flow control

Kartuzova, Olga V. January 2010 (has links)
Thesis (Ph.D.)--Cleveland State University, 2010. / Abstract. Title from PDF t.p. (viewed on July 6, 2010). Includes bibliographical references (p. 154-162). Available online via the OhioLINK ETD Center and also available in print.
154

Doubly fed induction generator (DFIG)-based wind power generation system simulation using real-time digital simulator (RTDS) a thesis presented to the faculty of the Graduate School, Tennessee Technological University /

Wang, Ge, January 2009 (has links)
Thesis (M.S.)--Tennessee Technological University, 2009. / Title from title page screen (viewed on June 29, 2010). Bibliography: leaves 147-152.
155

Scaled modeling and simulation of ocean wave linear generator buoy systems /

Gore, Ganesh P. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2007. / Printout. Includes bibliographical references (leaves 74-76). Also available on the World Wide Web.
156

Layout generation and its application

Nickoloff, Jacob L., January 2007 (has links) (PDF)
Thesis (M.S. in electrical engineering)--Washington State University, August 2007. / Includes bibliographical references (p. 36-38).
157

Novel control of a permanent magnet linear generator for ocean wave energy applications /

VanderMeulen, Aaron H. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2008. / Printout. Includes bibliographical references (leaf 114). Also available on the World Wide Web.
158

Sustainable power management of microelectronics /

Muhtaroglu, Ali. January 1900 (has links)
Thesis (Ph. D.)--Oregon State University, 2008. / Printout. Includes bibliographical references. Also available on the World Wide Web.
159

High spatial and spectral quality diode-laser-based pump sources for solid-state lasers and optical parametric oscillators

Lindsay, Ian D. January 1999 (has links)
In this thesis the use of high spatial- and spectral-quality diode-laser pump sources for solid-state lasers and continuous-wave optical parametric oscillators (cw OPOs) is investigated. While diode lasers are potentially attractive, compact, low-cost pump sources for solid-state lasers and cw OPOs, the difficulty in obtaining moderate output powers, while retaining high spatial beam quality and spectral purity, often limits the potential of such lasers in these applications. Techniques for obtaining high-power, high spatial- and spectral-quality output from diode lasers are reviewed and the design, development and characterisation of an injection-locked broad-area diode-laser system is described. This system produced output powers of &ap;400mW in a near-diffraction-limited beam (M2&ap;w1.3) and with a spectral width of < 30MHz. The injection-locked system was used as the pump source for a quasi-three-level 946-nm Nd:YAG laser. End-pumped solid-state lasers of this type can offer potentially efficient, low-threshold operation if a near-diffraction limited pump source is used allowing optimal overlap with the laser mode. A model, including pump beam quality effects, is developed for such lasers and used to highlight the advantages of a near- diffraction-limited pump source, especially in the case of the 946-nm Nd:YAG transition which suffers from low gain and significant reabsorption losses. A 946-nm Nd: YAG laser pumped by the injection-locked system is described, yielding cw output powers up to 120mW with a 46% slope efficiency, performance comparable to Ti:sapphire- or dye-laser pumping, and 27ns Q-switched pulses having peak powers of 180W. 50W, 20ns pulses at 473nm were obtained by second-harmonic generation in KNbOs. The performance and relative merits of various cw OPO configurations, in the context of diode-laser pumping, are discussed and the development of a doubly- resonant OPO (DRO) based on periodically-poled lithium niobate is described. When pumped by the injection-locked system, this device showed a threshold of 25mW and .tuning of the outputs over 1.15- 1.25 mum at the signal and 2.3-2.65 mum at the idler was obtained by variation of crystal temperature, PPLN grating period and pump wavelength. When pumping with a 100mW single-mode diode laser, a 15mW OPO threshold was observed while retaining a similar tuning range. This represented the first demonstration of a cw DRO directly pumped by a single-mode diode laser. The achievement of such spectral coverage while pumping with this source points to the potential of such systems as compact, tunable sources in the near-to mid-infrared.
160

Modelagem teorica-experimental da equacao da quantidade de movimento para geradores de vapor de reatores PWR

RODRIGUES, LUIZ A.H. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:38:09Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:04:38Z (GMT). No. of bitstreams: 1 05652.pdf: 4753146 bytes, checksum: 955c8142395925630bbfa71f9f9ba9ba (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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