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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.
1

Synthesis and dynamic mechanical studies of a urethane-based polyrotaxane

Hunt, Jason Patrick January 1996 (has links)
No description available.
2

The competing reactions of polyurethane foam formation : a computational and experimental study

Gibb, Jack Nicholas January 2014 (has links)
No description available.
3

Reactions of group IV metal compounds with isocyanates, and their catalytic applications

Wintersgill, S. January 1999 (has links)
No description available.
4

The intraction of associative polymer with inorganic pigment dispersion /

Sa-nguandekul, Sopee, January 1997 (has links)
Thesis (Ph. D.)--Lehigh University, 1997. / Includes vita. Includes bibliographical references.
5

A study of two-component clear casting urethanes, urethane catalysts, and related processes

Xiong, Cher. January 1998 (has links) (PDF)
Thesis--PlanB (M.S.)--University of Wisconsin--Stout, 1998. / Field project. Includes bibliographical references.
6

Sensitivity of Process Variables on Rigid Polyurethane Foaming

Pugsley, Bruce A. 01 December 1976 (has links)
Inadequate understanding and/or control of the polyurethane rigid foam process normally requires five to ten percent overpack of cavities to obtain correct fill and foam characteristics. This practice of overpacking has resulted in excessive waste and cost.
7

Biostability and Biocompatibility of Modified Polyurethane Elastomers

Christenson, Elizabeth 09 June 2005 (has links)
No description available.
8

Výroba mělkého výtažku pryží / The manufacturing of shallow drawing part by rubber

Klepáč, Patrik January 2008 (has links)
An object of this master thesis is the proposal of variants solving a manufacturing of required part and the selection right technology for single part production of required part from stainless steel 17240 (DIN 1.4301). At the first part of this thesis is briefly reviewed conventional forming and at rest of this thesis is closely reviewed the technology using the elastic tools (rubber, urethane), hydroforming technology and design of proper tool for required part. At the end of this work will be release economics estimation of fine technology and designed tool.
9

On the compressive response of open-cell aluminum foams

Jang, Wen-yea, January 1900 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2008. / Vita. Includes bibliographical references.
10

Comparative Study of Anesthesia’s effect on Baroreceptor Reflex and Sympathetic Nerve Activity in Adult Rats

Harbin, John 01 May 2021 (has links)
Anesthesia affects the central nervous system and can suppress cardiovascular activity. In this study, we compared two anesthetics, urethane and alpha-chloralose, to better understand their effect on sympathetic control of blood pressure, as well as how they would affect baroreceptor response and blood pressure in adult rats. To do this we performed baroreceptor tests in adult rats under isoflurane anesthesia and then either urethane (I.V. 1.25 g/kg, n=2) or alpha-chloralose (100 mg/kg, n=2). We found that baroreceptor responses were not significantly different between urethane or alpha-chloralose anesthesia. However, significant depression of baseline blood pressure occurred under alpha-chloralose anesthesia compared with urethane. Additionally, we observed significant elevation of baseline renal sympathetic nerve activity (RSNA) occurred under urethane anesthesia. Ultimately, our findings suggest that both urethane and alpha-chloralose provided sufficient induction of anesthesia without significantly modifying baroreceptor response. However, since urethane significantly raised baseline sympathetic nerve activity, it should be avoided in studies where raised sympathetic activity could confound with the test results. alpha-chloralose significantly lowered baseline blood pressure by nearly 30%, and its use should be avoided in studies where lowered blood pressure may confound the results.

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