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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.
531

Probing polymer adsorption at the solid-liquid interface with particle film ATR-FTIR spectroscopy /

Cuba-Chiem, Linh. Unknown Date (has links)
Polymeric depressant adsorption on the surface of talc was investigated using in situ Attenuated Total Reflectance-Fourier Transform Infrared (ATR-FTIR) Spectroscopy. The polymeric depressants investigated were an unmodified polyacrylamide (Polymer-N) and a hydroxyl substituted polyacrylamide (Polymer-H), an unmodified dextrin (Dextrin WY) and a hydroxylpropyl substituted dextrin (HP Dextrin), and carboxymethyl cellulose (CMC). The main objectives of this study were to evaluate the thermodynamic properties of adsorption, the kinetics of adsorption and desorption, and the mechanisms driving adsorption. / Thesis (PhDApSc(MineralsandMaterials))--University of South Australia, 2007.
532

A study of the growth and aggregation of calcium oxalate monohydrate / by Allan Sidney Bramley.

Bramley, Allan Sidney January 1994 (has links)
Bibliography: leaves 278-289. / xi, 324 leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / This thesis reports on experimental investigation of the growth and aggregation of calcium oxalate mono-dydrate in metastable saline solutions using batch and continuous systems. The physical chemistry of calcium oxalate mono-hydrate in aqueous solutions is considered. A tubular crystalliser to be used as an in vitro system is described. / Thesis (Ph.D.)--University of Adelaide, Dept. of Chemical Engineering, 1996?
533

Finite-difference methods for the diffusion equation / Kenneth John Hayman

Hayman, Kenneth John January 1988 (has links)
Bibliography: leaves 264-267 / 267 leaves : ill ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Applied Mathematics, 1988
534

Critical withdrawal from a two-layer fluid / by Graeme C. Hocking

Hocking, Graeme C. (Graeme Charles) January 1985 (has links)
Bibliography: leaves 77-78 / 78 leaves : ill. (some col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Applied Mathematics, 1986
535

There's no meaning in chocolate: a narrative study of women's journeys beyond the disruption of depression

Wilson, Jan D Unknown Date (has links)
Professional treatment, mainly medical and psychological, dominates research and clinical practice concerning women and their recovery from depression. This thesis challenges the assumption that women cannot be 'experts' actively involved in their own recovery. This study explored the narratives of eighteen women in Aotearoa New Zealand whose lives had been seriously disrupted by depression. They had found ways other than, or in addition to, professional solutions that helped them to live undisrupted meaningful lives. The research used a narrative inquiry approach informed by authors from across the social sciences including Arthur Frank, Jerome Bruner and Rivka Tuval-Mashiach. The underpinning social constructionist understanding of depression is informed by the work of Jane Ussher and Janet Stoppard. The women whose individual narratives provide the core data for the study ranged in age from 32 to 70 years at the time they told their stories. Their lives had been disrupted by depression at different times during the last 50 years of the twentieth century. Five of the women met as a group with the researcher as the analysis began, and their ideas informed significant aspects of the conclusions. The women had all experienced major depressive disorder, although this was not always formally diagnosed. Their recovery had involved a range of responses from outside the professional mainstream including physical, mental, social and spiritual aspects. Each woman had sought and found a 'formula' that was 'right' for her. The narratives showed all the women talked of their experience with depression and recovery in an holistic and contextualised way. They all talked about 'chocolate' solutions which provided symptom relief, and 'deeper' and often more complex sets of solutions which enabled them to discover or re-discover meaningful ways to live. Meaning-making often involved growing spiritual or transpersonal awareness in the broadest sense. A surprising finding was that the patterns of recovery were not related to the severity of the depression at the worst time. Rather, it emerged that the ways the women talked about their recovery journeys mirrored their stories of the 'jolly good reasons' why they were depressed; the more complex and lengthy the story leading up to the worst times, the more complex the formulae required for recovery. The implications of the research for clinical practice and for policy makers are that depression and recovery need to be seen as gendered, contextualised, and holistic. Women need opportunities to discover and take advantage of a range of 'things' so that they can find their own 'right formula' for recovery. This formula may involve professional treatment including anti-depressant medication and psychological therapy, but it is likely to involve many other things as well. This study challenges the notion that recovery needs to be guided by a professional expert, and creates hope for women being able to learn from each other's experiences.
536

Onsager Heat of Transport at the Liquid-Vapour Interface of Glycerol-Water Solutions

James, Ronald Arthur January 2007 (has links)
The Onsager heat of transport, Q*, has been measured for water vapour above glycerol-water solutions (75 % to 94.5 % glycerol) over a temperature range of -46 to -32 ℃. For solutions of concentrations 80 % and above, Q* varied from 5.41 kJ mol-1 ± 0.97 to 17.37 kJ mol-1 ± 2.61, consistent with previous results for aniline and n-heptanol. The dissociation of glycerol-water complexes was not rate determining, as was the case for sulfuric acid-water solutions, and therefore the glycerol-water system is a better two component system analog for comparison with the CO2-water system than the sulfuric acid-water system.
537

Runge-Kutta methods for stochastic differential equations

Burrage, Pamela Marion Unknown Date (has links)
In this thesis, high order stochastic Runge-Kutta methods are developed for the numerical solution of (Stratonvich) stochastic differential equations and numerical results are presented. The problems associated with non-communativity of stochastic differential equation systems are addressed and stochastic Runge-Kutta methods particularly suited for such systems are derived. The thesis concludes with a discussion on various implementation issues, along with numerical results from variable stepsize implementation of a stochastic embedded pair of Runge-Kutta methods.
538

Properties model for aqueous sodium chloride solutions near the critical point of water /

Liu, Bing, January 2005 (has links) (PDF)
Thesis (Ph. D.)--Brigham Young University. Dept. of Chemical Engineering, 2005. / Includes bibliographical references (p. 145-156).
539

The diffusion and solution of hydrogen isotopes in solids and the development of a hydrogen permeation barrier.

Riehm, Marc Philip. Smeltzer, W.W. Thompson, D.A. Davies, J.A. Unknown Date (has links)
Thesis (Ph.D.)--McMaster University (Canada), 1990. / Source: Dissertation Abstracts International, Volume: 52-10, Section: B, page: 5510. Supervisors: D. A. Thompson; W. W. Smeltzer; J. A. Davies.
540

Synthesis and characterization of poly(ester-imide)s /

Nie, Fei. January 1989 (has links)
Thesis (M.S.)--Rochester Institute of Technology, 1989. / Includes bibliographical references (leaves 131-133).

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