Global ETD Search

551	Design of Magnetic Flux for a High Speed Generator Lai, Dong-Yi 13 February 2008 (has links) none high frequency micro-turbines high speed generators permanent magnets
552	A High-Voltage Discharging Test Circuit for Cold Cathode Fluorescent Lamps Lu, Cheng-Lin 26 August 2008 (has links) In this thesis, a high voltage discharging testing circuit is proposed for cold cathode fluorescent lamps(CCFLs). The testing circuit uses only a single active power switch operating at a high frequency incorporating with reactive components to accumulate a relatively high voltage on the capacitor. This voltage is then stepped up by a transformer to provide the required high voltage for discharging the CCFLs. The circuit has the advantages of simple configuration, less component count, and low cost. In addition, a high power factor at the ac line source can be achieved. The proposed circuit is analyzed based on the mode operation. Accordingly, the design equations are derived to determine the circuit parameters. A prototype is designed and built for testing the 19 inch CCFLs. The discharging tests are made to recognize the malfunctions during the manufacturing process. Moreover, the distributions on the spectral power and chromaticity of lamps can be examined to ensure the product quality. High Voltage Discharging Cold Cathode Fluorescent Lamp High power factor
553	Teachers' and principals' perception of the effectiveness of supervisory approaches to in-service staff development planning Suen, Lee-wa, Ann. January 2001 (has links) Thesis (M. Ed.)--University of Hong Kong, 2001. / Includes bibliographical references (leaves 147-174).
554	Micropolitical behaviors a Taiwanese principal in an effective junior high school employs to influence behavior of teachers / Hsiao, Ching-lan, January 2000 (has links) Thesis (Ph. D.)--University of Texas at Austin, 2000. / Vita. Includes bibliographical references (leaves 215-223). Available also in a digital version from Dissertation Abstracts.
555	A multilevel analysis of student persistence in high school / Mahoe, Rochelle A. January 2003 (has links) Thesis (Ph. D.)--University of Hawaii at Manoa, 2003. / Includes bibliographical references (leaves 140-146). Also available by subscription via World Wide Web.
556	A multilevel analysis of student persistence in high school Mahoe, Rochelle A. January 2003 (has links) Thesis (Ph. D.)--University of Hawaii at Manoa, 2003. / Includes bibliographical references (leaves 140-146).
557	Toward an Olympics-national identity model a study of the Beijing Olympics in Hong Kong and Macao / Ho, Wing-yan, Glos. January 2009 (has links) Thesis (Ph. D.)--University of Hong Kong, 2010. / Includes bibliographical references (leaves 246-260). Also available in print.
558	The relationship of superintendent instructional leadership behavior and student achievement in high performing High Schools That Work network public high schools in West Virginia Paine, Steven L. January 2002 (has links) Thesis (Ed. D.)--West Virginia University, 2002. / Title from document title page. Document formatted into pages; contains x, 163 p. : ill. Vita. Includes abstract. Includes bibliographical references (p. 119-127).
559	Toward an Olympics-national identity model : a study of the Beijing Olympics in Hong Kong and Macao / Ho, Wing-yan, Glos. January 2009 (has links) Thesis (Ph. D.)--University of Hong Kong, 2010. / Includes bibliographical references (leaves 246-260). Also available online.
560	The experience of student engagement in high school classrooms : a phenomenological perspective / Shernoff, David Jordan. January 2001 (has links) Thesis (Ph. D.)--University of Chicago, Department of Education, August 2001. / Includes bibliographical references. Also available on the Internet.

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