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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.
501

Polymeric Hollow Fiber Heat Exchanger Design / Polymeric Hollow Fiber Heat Exchanger Design

Astrouski, Ilya January 2016 (has links)
This Ph.D. thesis is focused on theory and experimental investigations developing of new knowledge about polymeric hollow fiber heat exchanger (PHFHE). The state-of-the-art study of plastic heat exchangers shows that their usage is limited by several niches where their advantages significantly dominates, or where the use of non-plastic competitors is not impossible. On the other hand, plastic heat exchangers (and PHFHEs in particular) are devices of increasing interest. It is shown that use of small tubes (fibers) allows PHFHEs to be more competitive than conventional plastic heat exchangers. Small hydraulic diameter of a fiber causes high heat transfer coefficients, reduces thermal resistance of plastic wall and allows it to create light and compact design. Detailed study of fluid flow and heat transfer inside the hollow fiber showed that conventional approaches for single-phase laminar flow can be utilized. Poiseuille number equal to 64 and Nussel number about 4 are recommended to be used to predict pressure drops and heat transfer coefficient, respectively. Additional attention should be paid to careful determination of fiber diameter and liquid properties (viscosity). Scaling effects, such as axial heat conduction, thermal entrance region and viscous dissipation can be neglected. The study of outside heat transfer showed that heat transfer on fiber bunches are intense and are competitive to contemporary compact finned-tube heat exchangers. The Grimson approach showed clear correlation with experimental results and, thus is recommended to predict heat transfer coefficients on fiber bunches. Two types of fouling (particulate- and biofouling) of outer fiber surface were experimentally studied. It was found that particulate fouling by titanium oxide particles is not intense and deposits can be removed relatively easy. However, fouling is much more intense when it is associated with biofouling caused by wastewater. In this case, smooth and low-adhesive surface of plastic is not sufficient precaution to prevent deposit formation.
502

Optimalizace distribuce vzduchu ve školských zařízeních / Optimizing of air distribution in schools

Cigánková, Kristýna January 2017 (has links)
The thesis deals with the issue of indoor air quality of schools and kindergartens. It focuses particularly on the inadequate ventilation and the application of forced ventila-tion in these types of buildings. The proposed solution is applied to a kindergarten in Kuřim. Measurements of the C02 concentration levels were performed in the presence and absence of air conditioning. To elaborate the proposed solution a simulation was made using a software called ANSYS Fluent. Input values for the simulation were obtained from an experimental measurement of a ventilation diffuser made by a company called Climecon ROX using the PIV method. This diffuser was then installed in the kindergarten. The measure-ments were carried out in the framework of the project the experimental validation of numerical models of the air flow in buildings marked with FAST-S-6-3387.
503

Forced sterilization of women living the HIV/AIDS in Africa

Mamad, Farida Aligy Ussen January 2009 (has links)
Examines the actual reasons for sterilization of women living with HIV/AIDS and examines the reproductive rights of women living with HIV/ AIDS in light of existing legislation. Gives an overview of how the problem has been dealt with in other jurisdictions. Also discusses the human rights instruments and mechanisms addressing such violation of women's rights. / A dissertation submitted to the Faculty of Law University of Pretoria, in partial fulfilment of the requirements for the degree Masters of Law (LLM in Human Rights and Democratisation in Africa). Prepared under the supervision of Odile Lim Tung, Faculty of Law and Management, University of Mauritius, Mauritius. / LLM Dissertation (Human Rights and Democratisation in Africa -- University of Pretoria, 2009. / http://www.chr.up.ac.za/ / Centre for Human Rights / LLM
504

Forced alignment pomocí neuronových sítí / Forced Alignment via Neural Networks

Beňovič, Marek January 2020 (has links)
Watching videos with subtitles in the original language is one of the most effective ways of learning a foreign language. Highlighting words at the moment they are pronounced helps to synchronize visual and auditory perception and increases learning efficiency. The method for aligning orthographic transcriptions to audio recordings is known as forced alignment. This work implements a tool for aligning transcript of YouTube videos with the speech in their audio recording, providing a web user interface with video player presenting the results. It integrates two state-of-the-art forced aligners based on Kaldi, first using standard HMM approach, second based on neural networks and compares their accuracy. Integrated aligners also provide a phone level alignment, which can be used for training statistical models in further speech recognition research. Work describes implementation and architectural concepts the tool is based on, which can be used in various software projects. 1
505

Frameworks of representation: A design history of the District Six Museum in Cape Town

Hayes-Roberts, Hayley Elizabeth January 2020 (has links)
Philosophiae Doctor - PhD / Since 1994, the District Six Museum, in constructing histories of forced removals from District Six, Cape Town, commenced as a post-apartheid memory project which evolved into a memorial museum. Design has been a central strategy claimed by the museum in its process of making memory work visible to its attendant publics evolving into a South African cultural brand. Co-design within the museum is aesthetically infused with sensitively curated exhibitions and a form of museumisation, across two tangible sites of engagement, which imparts a unique visual language. The term design became extraordinarily popular in contemporary Cape Town, where the city was - in 2014 -the World Design Capital. Yet at the same time as design was being inscribed into the public imaginary, it was simultaneously curiously undefined although influential in shifting representational aesthetics in the city. This research seeks to ask questions about this proliferation of interest in design and to examine this through a close reading of the work of the District Six Museum situated near District Six. In particular, micro and macro design elements are explored as socio-cultural practice in re-imagining community in the city that grew out of resistance and cultural networks. Various design strategies or frameworks of representation sought to stabilize and clarify individual and collective pasts enabling and supporting ex-residents to reinterpret space after loss, displacement and separation and re-enter their histories and the city. Post-apartheid museum design modes and methodologies applied by the District Six Museum as museumisation disrupts conventional historiographies in the fields of art, architectural and exhibition design, where the focus is placed on temporal chronologies, in a biographic mode profiling examples of works and designers/artists. Instead, the research contextualises the work of design as making in a more open sense, of exploring the very constructedness of the museum as a space of method, selection, process and representation thereby asking questions about this reified term design as method and practice. The designing ways of the District Six Museum contribute to understanding idioms mediated through design frameworks allowing for a departure from the limited ways design history has been written. Through an unlayering of projects, practices and an examination of archival case studies, exhibition curation, the adaptive reuse of buildings and through institutional rebranding my argument is that the particularities of the claims to design work at the District Six Museum provide a rich case for relating to other contemporaneous processes of making apartheid’s spatial practices visible as projects such as this claim community. Therefore seeking to demystify how this community museum ‘making’ has been fashioned through an investment in various design disciplines, forms and practices revealing the inherent complexity in doing so.
506

The Differentiation of Early Word Meanings from Global to Specific Categories: Towards a Verification of the “Semantic Pluripotency Hypothesis” / 言語発達初期における語の意味の未分化性と可塑的変化:「胚性詞」仮説の検証に向けて

Hagihara, Hiromichi 23 March 2021 (has links)
京都大学 / 新制・課程博士 / 博士(人間・環境学) / 甲第23264号 / 人博第979号 / 新制||人||232(附属図書館) / 2020||人博||979(吉田南総合図書館) / 京都大学大学院人間・環境学研究科相関環境学専攻 / (主査)教授 阪上 雅昭, 教授 谷口 一美, 准教授 森口 佑介 / 学位規則第4条第1項該当 / Doctor of Human and Environmental Studies / Kyoto University / DFAM
507

Poetika imanence: performance divadlo Forced Entertainment / Poetika imanence: performance divadlo Forced Entertainment

Suk, Jan January 2017 (has links)
Jan Suk The Poetics of Immanence: Performance Theatre of Forced Entertainment Abstract The present dissertation thesis examines the multi-faceted nature of the devised as well as durational works of the British experimental theatre Forced Entertainment via the thought of Gilles Deleuze and Félix Guattari. The aim of the thesis is to explore the transformation- potentiality of the territory between the actors and the spectators. The transformativity of this interspace, or the territory in-between, is decodable namely via Forced Entertainment's performances' structural patterns, sympathy fostering aesthetics, virtual audience integration and accentuated emphasis of the now. The application of Deleuze's philosophy, chiefly the phenomenon of immanence, results in the definition of the poetics of immanence, whose operation enables the transformativity of theatrical space to be terminologically embraced. After delineating crucial terms, such as performance and theatre, live art, or postdramatic theatre, the initial chapter contextualizes Forced Entertainment as the pivotal experimental theatre group; the chapter further conducts an analysis of relevant critical literature in performance and theatre theory discourse. Chapter two provides a deeper contextualising study of the most significant Deleuzoguattarian...
508

Immediate Complications and Flow Volume Changes During Treatment Phases of Bronchial Thermoplasty: A Single-Center Descriptive Study

Vijayan, Karthik, Karakattu, Sajin M., Bansal, Apurva, Thomas, Akesh, Alazzeh, Ahmad, El Minaoui, Wael, Maisonet, Mildred 01 January 2021 (has links)
Introduction: Bronchial thermoplasty (B.T.) is a therapeutic bronchoscopic procedure in which controlled thermal energy is applied to the airway wall to decrease smooth muscle mass. Immediate complications of B.T. include acute exacerbation of bronchial asthma, upper and lower respiratory tract infection, hemoptysis, among others. Our study assessed these immediate adverse events and the changes in forced expiratory volume in one second (FEV1%) measured four hours after each procedure from baseline. The study also aimed to examine the number of activations during each cycle of treatment and its correlation to the corresponding change in FEV1% from baseline. Methods: A case-series analysis of 17 patients who underwent B.T. between 2014 and 2019 was done. Demographic, clinical characteristics, including pre and post-BT FEV1% measures, and the number of activations were obtained. Results: Acute exacerbation of asthma was the commonest complication accounting for 33%, 57%, and 75% after BT1, BT2, and BT3, respectively. There was deterioration in FEV1% after each treatment phase, the most significant being in BT3. There was no correlation between the number of heat activations with the change in FEV1% from baseline. Conclusion: The number of activations in B.T. does not correlate with the immediate deterioration in FEV1%, although exacerbation of asthma is the commonest complication post-B.T.
509

Maskulina ideal och sexuella trakasserier : En diskursanalys av gender och jämställdhet inom Försvarsmakten / Masculine ideals and sexual harassment : A discourse analysis of gender and gender equality within the Swedish Armed Forces

Wahlkrantz, Emelie January 2020 (has links)
Mot bakgrunden av den könsneutrala värnplikten var uppsatsens syfte att identifiera diskurser om gender och jämställdhet inom Försvarsmakten. För att undersöka detta användes en diskursanalys där dagstidningsartiklar och Försvarsmaktens jämställdhetsdokument analyserades utifrån frågeställningarna om hur gender respektive jämställdhet diskuteras och förstås i dessa material. Analysen resulterade i elva identifierade diskurser; sex för gender och fem för jämställdhet. För gender identifierades en binär uppfattning av gender, drivande manlig sexualitet och kvinnliga offer som diskursiva ramar i jämställdhetsdokumenten. I dagstidningarna identifierades diskurser om mäns och kvinnors olika intresse, om maskulint förhållningssätt och manlig sexualitet. I analysen av jämställdhet identifierades en diskurs där kvinnor synliggörs och jämförs mot en osynlig manlig standard samt en diskurs om sexuella trakasserier i jämställdhetsdokumenten. I dagstidningsartiklarna identifierades diskurser om att kvinnor bidrar till försvarets operativa förmåga, att sexuella trakasserier utgör hinder för jämställdhet och att jämn könsfördelning ses som jämställdhet. Diskurserna i jämställdhetsmaterialen och dagstidningarna överlappade varandra till viss del, exempelvis gällande manlig sexualitet och sexuella trakasserier. Utifrån analysen konstaterades att Försvarsmaktens jämställdhetsarbete har ett fokus på sexuella trakasserier. Femininitet associeras till offerskap medan mäns sexualitet formuleras som aggressiv, vilket underbygger förståelsen av sexuella trakasserier inom Försvarsmakten. Den slutsats som dras från uppsatsen är att uppfattningarna om jämställdhet baseras på diskursiva uppfattningar om gender. Likaså baseras uppfattningarna om gender inom organisationen på de diskursiva förståelser som finns om jämställdhet. / In the context of the Swedish conscription being reformulated as gender neutral, this thesis aimed to identify discourses about gender and equality in the Swedish Armed Forces. A discourse analysis was used to identify how gender and gender equality is understood and discussed in newspaper articles as well as in the Swedish Armed Forces’ documents on gender equality. The analysis resulted in six identified discourses on gender. A binary understanding of gender, aggressive male sexuality and female victims were discourses about gender in the gender equality documents, whereas men’s and women’s different interests, masculine attitudes and aggressive male sexuality was discursive perceptions of gender in the newspapers. The analysis resulted in five identified discourses on gender equality. In the gender equality documents a discourse about women being compared to an invisible male standard was identified as well as a discourse about sexual harassment. In the newspapers one discursive notion was that women contribute to the efficiency of the defense; another was that sexual harassment is an obstacle for gender equality and a third discourse regards even gender ratio as gender equality. To some extent, the discourses in the newspapers and the gender equality documents overlapped, for example regarding male sexuality and sexual harassment. The analysis showed a skewed focus on sexual harassment in the Swedish Armed Forces’ gender equality work. Femininity is associated with victim hood while men’s sexuality is articulated as aggressive, which underpins the understanding of sexual harassment. The conclusions that are drawn from this thesis are that perceptions of gender and gender equality are co-constructed, meaning that they mutually depend on and construct each other.
510

The right to life, A case research on how article 4 of the American Convention on Human Rights is connected to the act on forced disappearance, according to the Inter-American Court on Human Rights

Hedlund, Beatrice January 2018 (has links)
Syftet med uppsatsen är att utreda hur rätten till liv har ett samband med tvångsförsvinnande enligt den Inter-Amerikanska Domstolen om Mänskliga Rättigheter. För att uppnå uppsatsens syfte genomförs en rättsutredning kring gällande rätt, där en rättsdogmatisk metod och fallstudie applicerats. Uppsatsen kommer vidare att analyseras mot bakgrund av en rättsvetenskaplig teori, där relevant rättspraxis som den Inter-Amerikanska Domstolen om Mänskliga Rättigheter bemött samt en kortfattad genomgång av kontexters påverkan. Under utredningen av de konventionella källorna finns vissa krav för att uppfylla om en stat kan hållas ansvarig. Utifrån det och med de grova mänskliga rättighets kränkningarna staten utfärdat i åtanke, är bevisbördan och statsansvar av stor relevans för att klargöra sambandet mellan rättigheten och handlingen. Uppsatsen avslutas med att konkludera att det råder brister i hur den Inter-Amerikanska Domstolen om Mänskliga Rättigheter arbetar mot att förvara och skydda Mänskliga Rättigheter i fall som berör tvångsförsvinnande. / The aim of this paper is to evaluate how the right to life has a connection with the forced disappearance of persons, according to the Inter-American Court on Human Rights. In order to reach this purpose, a legal dogmatic approach and a case study is used, in the light of a legal theory. The research concerns relevant cases that the Inter-American Court on Human Rights has been confronted with, and, to clarify the contextual importance, a brief explanation on the surroundings is provided. With the grave human rights violations committed by State authorities in mind, the thesis shows that the standard of proof, and principle of state responsibility, becomes of importance, in order to be able to determine whether the right to life is violated in cases of forced disappearance. The essay will conclude that the issue prevails defectiveness in relation to preventing and protecting human rights in cases of forced disappearance of persons.

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