• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 212
  • 85
  • 39
  • 36
  • 16
  • 13
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 4
  • 4
  • 4
  • Tagged with
  • 660
  • 199
  • 117
  • 116
  • 115
  • 112
  • 111
  • 111
  • 98
  • 80
  • 79
  • 76
  • 53
  • 52
  • 41
  • 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.
131

Modeling, validation and design of integrated carbon dioxide heat pumps and water heaters

Goodman, Christopher L. January 2007 (has links)
Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2008. / Committee Chair: Srinivas Garimella; Committee Member: David Sanborn; Committee Member: Sheldon Jeter.
132

Computational analysis of space transfer vehicle engine turbopump diffuser design for deep-throttling : by Gordon J. Wissinger /

Wissinger, Gordon J. January 1991 (has links)
Thesis (M.S.)--Rochester Institute of Technology, 1991. / Typescript. Includes bibliographical references.
133

Compuational analysis of boundary layer control by suction in a space transfer vehicle engine turbopump diffuser /

Yoshida, Brian Richard. January 1992 (has links)
Thesis (M.S.)--Rochester Institute of Technology, 1992. / Typescript. Includes bibliographical references (leaves 152-154).
134

Dynamic response of a variable speed pumping system /

Lai, Chi-keung. January 1994 (has links)
Thesis (M. Phil.)--University of Hong Kong, 1995. / Includes bibliographical references (leaves 188-196).
135

Modeling the electrical submersible jet pump producing high gas-liquid-ratio petroleum wells /

Carvalho, Paulo Moreira de, January 1998 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 1998. / Vita. Includes bibliographical references (leaves 276-281). Available also in a digital version from Dissertation Abstracts.
136

A novel ultra-low refractive index nanoporous dielectric based aqueous core waveguide system

Korampally, Venumadhav, January 2007 (has links)
Thesis (Ph.D.)--University of Missouri-Columbia, 2007. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on March 10, 2009) Includes bibliographical references.
137

Solar-assisted refrigerant-filled collector heat pumps

O'Dell, Michael P. January 1982 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1982. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 131-132).
138

Mechanical fatigue in a magnetically levitated axial blood pump /

Slevar, Amy E. January 2007 (has links)
Thesis (M.S.)--Rochester Institute of Technology, 2007. / Typescript. Includes bibliographical references (leaves 70-71).
139

Heat transfer and fluid flow characteristics in various micro devices for the development of micro absorption heat pump systems /

Hu, Jinshan. January 2007 (has links)
Thesis (Ph.D.)--Hong Kong University of Science and Technology, 2007. / Includes bibliographical references (leaves 191-204). Also available in electronic version.
140

The design of safety-critical medical infusion devices

Murphy, Robert S. January 2007 (has links)
Intravenous infusion devices - commonly known as infusion pumps - provide clinicians with mechanisms to automate the accurate dosing of potent fluid therapies to critically ill patients. In critical care applications, fluid dosing must be both accurate and safe since unwanted flow disturbance can cause physiological harm to the patient. This study consists of three discrete projects based on these vital themes of safe device design and accurate fluid delivery. The first project, commissioned by Medical Magnetics Ltd during the period 1998 onwards, proposed that the fail-safe design philosophy universally used in the design of infusion pumps, and implemented in embedded software, is lengthy and provides the manufacturer with difficulties in demonstrating the exhaustive fail-safe validation needed for an instrument to be released speedily for sale. An alternative and innovative strategy employing the design of hardware modules and using re-configurable VLSI, is proposed and shown to offer a significant reduction of the design and validation phase of development with consequent financial benefit to the manufacturer. The second project conducted as part of the Manukau Institute Research Programme for 2003 examined the manner in which dosing accuracy is assessed for infusion pumps. The International Standard used by clinicians to select apparatus suitable for treatment of 'critically-ill' patients is shown to be flawed and potentially misleading - a finding of international significance. An innovative mathematical simulation model is described that enables prediction of flow accuracy for various expected operating scenarios previously impossible to investigate using current laboratory measurement techniques. Use of this simulation model indicates that various mechanical design factors influencing system compliance and hence dosing accuracy have been previously ignored by designers and suggests that contemporary infusion pump designs are far from optimum. These findings offer an explanation for instances of dosing error previously reported in the clinical literature and are of international value. The third project of the study utilises the findings of, and is subsequent to, the second project. An innovative design is proposed for an infusion therapy device in which dosing accuracy may be maintained under operating conditions such as height change and patient venous pressure variation that cause unwanted errors in conventional equipment designs. This design is the subject of patent application, commercial exploitation and further development.

Page generated in 0.0199 seconds