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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.
241

Design of an experimental facility for frost growth study in microchannel heat exchangers

Cai, Shanshan, January 2009 (has links) (PDF)
Thesis (M.S.)--Oklahoma State University, 2009. / Vita. Includes bibliographical references.
242

The development And Testing Of Pulsed Detonation Engine Ground Demonstrators /

Panicker, Philip Koshy. January 2008 (has links)
Thesis (Ph.D.) -- University of Texas at Arlington, 2008.
243

Further calculations of the performance of turbofan engines incorporating a wave rotor.

Roberts, James W. January 1990 (has links) (PDF)
Thesis (M.S. in Aeronautical Engineering)--Naval Postgraduate School, September 1990. / Thesis Advisor(s): Shreeve, Raymond P. Second Reader: Hobson, Garth V. "September 1990." Description based on title screen as viewed on December 18, 2009. DTIC Descriptor(s): Rotors, Turbofan Engines, Waves, Gases, Pressure, Ratios, Computer Programs, Cycles. DTIC Identifier(s): Wave Rotors, Rotors, Waves, Theses. Author(s) subject terms: Turbofan Engines, Turbofan engines with a Wave Rotor. Includes bibliographical references (p. 95-96). Also available in print.
244

Bulk and nano-scale characterization of polymer derived silicon carbide and comparison with sintered silicon carbide

Rahman, Arif, January 2009 (has links) (PDF)
Thesis (M.S.)--Oklahoma State University, 2009. / Vita. Includes bibliographical references.
245

Toward faster and more accurate star sensors using recursive centroiding and star identification

Samaan, Malak Anees, January 2003 (has links)
Thesis (Ph. D.)--Texas A & M University, 2003. / "Major Subject: Aerospace Engineering." Title from author supplied metadata. Includes bibliographical references.
246

Analysis of 2x2 braided composites

Goyal, Deepak, January 2003 (has links)
Thesis (M.S.)--Texas A & M University, 2003. / "Major Subject: Aerospace Engineering." Title from author supplied metadata. Includes bibliographical references.
247

Optimization of composite tubes for a thermal optical lens housing design

Garcia Gonzalez, Hector Camerino, January 2003 (has links)
Thesis (M.S.)--Texas A & M University, 2003. / "Major Subject: Aerospace Engineering." Title from author supplied metadata. Includes bibliographical references.
248

Acoustic resonances in ducted jet systems /

Topalian, Victor D. January 2009 (has links)
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2009. / Source: Dissertation Abstracts International, Volume: 70-06, Section: B, page: 3755. Adviser: Jonathan Freund. Includes bibliographical references (leaves 107-110) Available on microfilm from Pro Quest Information and Learning.
249

Verification, validation, and implementation of numerical methods and models for OpenFOAM 2.0 for incompressible flow

Robertson, Eric D. 09 September 2015 (has links)
<p> A comprehensive survey of available numerical methods and models was performed on the open source computational fluid dynamics solver OpenFOAM version 2.0 for incompressible turbulent bluff body flows. Numerical methods are illuminated using source code for side-by-side comparison. For validation, the accuracy of flow predictions over a sphere in the subcritical regime and delta wing with sharp leading edge is assessed. Solutions show mostly good agreement with experimental data and data obtained from commercial software. A demonstration of the numerical implementation of a dynamic hybrid RANS/LES framework is also presented, including results from test studies. </p>
250

Real time target allocation in cooperative unmanned aerial vehicles

Kudleppanavar, Ganesh 04 December 2015 (has links)
<p> The prolific development of Unmanned Aerial Vehicles (UAV&rsquo;s) in recent years has the potential to provide tremendous advantages in military, commercial and law enforcement applications. While safety and performance take precedence in the development lifecycle, autonomous operations and, in particular, cooperative missions have the ability to significantly enhance the usability of these vehicles. The success of cooperative missions relies on the optimal allocation of targets while taking into consideration the resource limitation of each vehicle. The task allocation process can be centralized or decentralized. This effort presents the development of a real time target allocation algorithm that considers available stored energy in each vehicle while minimizing the communication between each UAV. The algorithm utilizes a nearest neighbor search algorithm to locate new targets with respect to existing targets. Simulations show that this novel algorithm compares favorably to the mixed integer linear programming method, which is computationally more expensive. The implementation of this algorithm on Arduino and Xbee wireless modules shows the capability of the algorithm to execute efficiently on hardware with minimum computation complexity.</p>

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