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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

Investigating Small Amine Molecules as Ice Recrystallization Inhibitors

Janabi, Joseph 18 June 2018 (has links)
Cryopreservation is a technique used to store cells and tissues for long time. It requires the addition of a cryoprotectant, which prevents damage to cells caused by the formation of large ice crystals. Few compounds have been classified as cryprotectants, and some of them are very toxic like DMSO. Our lab is interested in the synthesis of small, non-toxic cryoprotectants that possess ice recrystallization inhibition (IRI) activity. Much attention has been drawn towards small molecules that contain an amine group because they have some activity towards inhibiting ice recrystallization. Herein we have examined few monoamine and diamine molecules as well as PAMAM dendrimer for IRI activity. Some of the small molecules tested contain an aryl ring, and we found that changing the position of groups around the ring can have some impact in the IRI activity. We have also found that increasing the number of amines in a molecule can have little effect of the IRI activity. It is hoped that these findings can open new doors for further investigation in small amino molecules and the development of novel cryoprotectants. Corticosteroids were first identified and isolated from both teleost and elasmobranch fish. Corticosterone and cortisol were measurable in the plasma of elasmobranchs and 1α-hydroxycorticosterone (1α-OH-B) was the dominant corticosteroid produced by the internal tissue. Limited amount of 1α-OH-B was synthesized because available supplies were exhausted in the early 1990s. Synthetic 1α-OH-B was used in steroid receptor studies to examine the evolution of the corticosteroid receptor system and measure stress levels.
2

The Development and Analysis of Low Temperature Superplasticity in AZ91 Magnesium Alloy

Lin, Hsuan-Kai 16 July 2001 (has links)
none
3

none

Wang, Yun-Chun 27 August 2001 (has links)
none
4

Strain localization in extruded AZ31 Magnesium alloy

Huang, Chao-Chun 06 August 2009 (has links)
none
5

Recrystallization of cold rolled, direct-chill cast copper alloys

鍾志源, Chung, Chi-yuen. January 1992 (has links)
published_or_final_version / Mechanical Engineering / Doctoral / Doctor of Philosophy
6

Randomization of recrystallization textures in an experimental Al-5%Mgalloy and AA6111

Chang, Sin-ting, Cynthia., 張倩婷. January 2005 (has links)
published_or_final_version / abstract / Mechanical Engineering / Doctoral / Doctor of Philosophy
7

A novel thermomechanical treatment process for enhancing gamma fibre texture recrystallisation components

林繼棟, Lam, Kai-tung, George. January 2002 (has links)
published_or_final_version / Mechanical Engineering / Master / Master of Philosophy
8

The thermomechanical processing of aluminium alloys for high pressure gas cylinders

Clinch, Michael January 2000 (has links)
No description available.
9

A novel thermomechanical treatment process for enhancing gamma fibre texture recrystallisation components /

Lam, Kai-tung, George. January 2002 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2002. / Includes bibliographical references.
10

Recrystallization of cold rolled, direct-chill cast copper alloys /

Chung, Chi-yuen. January 1992 (has links)
Thesis (Ph. D.)--University of Hong Kong, 1992.

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