Thesis (M.S.)--Brigham Young University. Dept. of Mechanical Engineering, 2007. / Includes bibliographical references (p. 73-74).

A umidade nas edificações pode ser proveniente de diversas fontes. Entre elas está a umidade ascensional, que provém do solo na ausência ou falha de barreiras. A umidade ascende pelas paredes por capilaridade existente devida a estrutura porosa dos materiais de construção. Sua ação pode prejudicar o desempenho das paredes das edificações, possibilitando a degradação progressiva das paredes. Dessa forma, estas podem deixar de cumprir funções, como por exemplo, de proteção e acabamento. Vários tratamentos têm sido estudados pelo mundo. Entretanto a avaliação dos métodos de reparação das paredes afetadas tem sido um problema de difícil resolução. O objetivo deste trabalho é a avaliação da eficiência do tratamento de paredes com umidade ascensional através do método de corte hídrico por inserção do cristalizante através da ação gravitacional, utilizando os diferentes produtos disponíveis no mercado nacional brasileiro. Apesar de limitada a paredes pouco espessas, essa técnica tem apresentado eficácia, versatilidade de execução e baixa interferência na fachada da parede. Essas características justificam a escolha dessa técnica para servir de objeto de estudo do presente trabalho. Visto que não há ensaio normalizado para avaliar a eficiência dos produtos para tratamento contra umidade ascensional será utilizado como referência um experimento realizado por outros pesquisadores, explanado neste documento. A avaliação da umidade presente no corpo de prova é através da medição da massa e imagens com câmera termográfica. Constatou-se que, no período analisado, não houve a redução total da umidade ascensional, no entanto os cristalizantes conseguiram diminuir consideravelmente (em média mais que 50%) a absorção da água por capilaridade. / Dampness in buildings can be derived from several sources. Among them is the upward moisture, which comes from the soil in absence of barriers. The moisture ascends on the walls due to the existing capillarity of porous building materials. Its action may impair the performance of the walls of buildings, leading to their progressive degradation. Thus, the walls may cease to comply with their functions, such as protecting and finishing. Several treatments have been studied worldwide. However, evaluating the methods of repairing affected walls has been a difficult problem to be solved. The aim of this study is to evaluate the efficacy of the treatment of walls presenting upward moisture through the method of the crystallizing insertion through gravitational action using different available products within the Brazilian market. In spite of being limited to thin walls, this technique has presented efficacy, versatility of execution and little interference on the treated facade as it has been demonstrated on the studied bibliography. These features justify choosing that technique to be studied in the present work. A reference experiment conducted by other researchers is used, since there is no standard test to evaluate the efficiency of treatment products rising damp against. The evaluation of the moisture present in the specimen is by measuring the mass and images with thermographic camera. It was found that in the period analyzed, there was no reduction of the total moisture upward. However the crystallizing managed to reduce significantly (on average more than 50%) the absorption of water by capillarity.

A umidade nas edificações pode ser proveniente de diversas fontes. Entre elas está a umidade ascensional, que provém do solo na ausência ou falha de barreiras. A umidade ascende pelas paredes por capilaridade existente devida a estrutura porosa dos materiais de construção. Sua ação pode prejudicar o desempenho das paredes das edificações, possibilitando a degradação progressiva das paredes. Dessa forma, estas podem deixar de cumprir funções, como por exemplo, de proteção e acabamento. Vários tratamentos têm sido estudados pelo mundo. Entretanto a avaliação dos métodos de reparação das paredes afetadas tem sido um problema de difícil resolução. O objetivo deste trabalho é a avaliação da eficiência do tratamento de paredes com umidade ascensional através do método de corte hídrico por inserção do cristalizante através da ação gravitacional, utilizando os diferentes produtos disponíveis no mercado nacional brasileiro. Apesar de limitada a paredes pouco espessas, essa técnica tem apresentado eficácia, versatilidade de execução e baixa interferência na fachada da parede. Essas características justificam a escolha dessa técnica para servir de objeto de estudo do presente trabalho. Visto que não há ensaio normalizado para avaliar a eficiência dos produtos para tratamento contra umidade ascensional será utilizado como referência um experimento realizado por outros pesquisadores, explanado neste documento. A avaliação da umidade presente no corpo de prova é através da medição da massa e imagens com câmera termográfica. Constatou-se que, no período analisado, não houve a redução total da umidade ascensional, no entanto os cristalizantes conseguiram diminuir consideravelmente (em média mais que 50%) a absorção da água por capilaridade. / Dampness in buildings can be derived from several sources. Among them is the upward moisture, which comes from the soil in absence of barriers. The moisture ascends on the walls due to the existing capillarity of porous building materials. Its action may impair the performance of the walls of buildings, leading to their progressive degradation. Thus, the walls may cease to comply with their functions, such as protecting and finishing. Several treatments have been studied worldwide. However, evaluating the methods of repairing affected walls has been a difficult problem to be solved. The aim of this study is to evaluate the efficacy of the treatment of walls presenting upward moisture through the method of the crystallizing insertion through gravitational action using different available products within the Brazilian market. In spite of being limited to thin walls, this technique has presented efficacy, versatility of execution and little interference on the treated facade as it has been demonstrated on the studied bibliography. These features justify choosing that technique to be studied in the present work. A reference experiment conducted by other researchers is used, since there is no standard test to evaluate the efficiency of treatment products rising damp against. The evaluation of the moisture present in the specimen is by measuring the mass and images with thermographic camera. It was found that in the period analyzed, there was no reduction of the total moisture upward. However the crystallizing managed to reduce significantly (on average more than 50%) the absorption of water by capillarity.

A umidade nas edificações pode ser proveniente de diversas fontes. Entre elas está a umidade ascensional, que provém do solo na ausência ou falha de barreiras. A umidade ascende pelas paredes por capilaridade existente devida a estrutura porosa dos materiais de construção. Sua ação pode prejudicar o desempenho das paredes das edificações, possibilitando a degradação progressiva das paredes. Dessa forma, estas podem deixar de cumprir funções, como por exemplo, de proteção e acabamento. Vários tratamentos têm sido estudados pelo mundo. Entretanto a avaliação dos métodos de reparação das paredes afetadas tem sido um problema de difícil resolução. O objetivo deste trabalho é a avaliação da eficiência do tratamento de paredes com umidade ascensional através do método de corte hídrico por inserção do cristalizante através da ação gravitacional, utilizando os diferentes produtos disponíveis no mercado nacional brasileiro. Apesar de limitada a paredes pouco espessas, essa técnica tem apresentado eficácia, versatilidade de execução e baixa interferência na fachada da parede. Essas características justificam a escolha dessa técnica para servir de objeto de estudo do presente trabalho. Visto que não há ensaio normalizado para avaliar a eficiência dos produtos para tratamento contra umidade ascensional será utilizado como referência um experimento realizado por outros pesquisadores, explanado neste documento. A avaliação da umidade presente no corpo de prova é através da medição da massa e imagens com câmera termográfica. Constatou-se que, no período analisado, não houve a redução total da umidade ascensional, no entanto os cristalizantes conseguiram diminuir consideravelmente (em média mais que 50%) a absorção da água por capilaridade. / Dampness in buildings can be derived from several sources. Among them is the upward moisture, which comes from the soil in absence of barriers. The moisture ascends on the walls due to the existing capillarity of porous building materials. Its action may impair the performance of the walls of buildings, leading to their progressive degradation. Thus, the walls may cease to comply with their functions, such as protecting and finishing. Several treatments have been studied worldwide. However, evaluating the methods of repairing affected walls has been a difficult problem to be solved. The aim of this study is to evaluate the efficacy of the treatment of walls presenting upward moisture through the method of the crystallizing insertion through gravitational action using different available products within the Brazilian market. In spite of being limited to thin walls, this technique has presented efficacy, versatility of execution and little interference on the treated facade as it has been demonstrated on the studied bibliography. These features justify choosing that technique to be studied in the present work. A reference experiment conducted by other researchers is used, since there is no standard test to evaluate the efficiency of treatment products rising damp against. The evaluation of the moisture present in the specimen is by measuring the mass and images with thermographic camera. It was found that in the period analyzed, there was no reduction of the total moisture upward. However the crystallizing managed to reduce significantly (on average more than 50%) the absorption of water by capillarity.

No description available.

In this thesis I explore the theoretical, ethical, and practice-based implications of doing research with Indigenous, racialized, and LGBT2SQ+ youth and young people. This research traces participant conceptualizations of decolonial love, through arts- and land-based methods, within the context of ongoing settler colonialism. Through an Indigenous-led and participatory research project called Sisters Rising, I engaged in intimate conversations and facilitated research workshops with young Black, Indigenous, and people of colour (BIPOC) who reflected on their understandings of decolonial love as related to their own experiences, knowledges, and teachings. Their conceptualizations of decolonial love as inextricably tied to land, sovereignty, and resurgence disrupt settler colonial narratives that attempt to violently displace and disenfranchise BIPOC communities and undermine Indigenous intellectual knowledges as inferior or simplistic, particularly in Euro-Western academia. Through this research BIPOC young people’s understandings of decolonial love guide my praxis and ongoing learning as a frontline practitioner who is committed to cultivating and nurturing a politicized ethic of decolonial love in my child-, youth-, and family-centered praxis. / Graduate / 2022-07-05

<p> Gypsum karst areas in British Columbia and Wood Buffalo National Park, Alta.-N.W.T. are described. Investigation of the geo-hydrology of these areas, particularly specifically the saturation states of rising waters, is demonstrated to be a valuable tool in defining the major geomorphic processes acting. The combination of thermo-dynamic equilibrium studies of the gypsum and limestone processes serves to define zones within which the dominant controls of rock solution can be inferred.</p> <p> The commonly accepted parameters of limestone solution equilibria (Picknett's curves) are examined and shown to be incorrect. Use of the parameters and indices presented in this thesis gives much better accordance with observed characteristics of karst waters. </p> / Thesis / Master of Science (MSc)

‘Africa Rising’ is an ideology which is gaining increasing traction and momentum amongst economists, analysts and those who would wish to present a positive perspective on the continent’s future.Advertising, more than any other mass media platform stratifies its audience along patterns of consumption and as such manipulates, underlines and marks social difference in ways which are now so embedded as to be commonplace. Using a familiar repertoire of images, Africa Rising is ‘advertising’ the message of positivity and optimism in the same way a soap manufacturer might sell a new handwash. The language and techniques of mass-market billboard advertising – what Stuart Hall would identify as a signifying practice – have technical and semiotic echoes in the branding applied to this ‘renaissance’ theme. The effect of this ideological makeover is to forge a conducive environment to gain buy-in from a sector of Kenyan society that can afford the luxury of the aspiration Africa Rising promises. The messages and values communicated by Africa Rising demonstrate ‘a new ideological use for pictures’ (Sontag 2003: 29), however they are not targeted to those at the base of the pyramid who remain socially and economically trapped by poverty and basic subsistence. The visual rhetoric employed by Africa Rising mines a semiotic vocabulary replete with norms and codes which have meaning inside and beyond the continent and which rely on traditional and received visual conventions. If the African renaissance is to translate into a meaningful ideology of transformation rather than ‘a new brick in the wall of cliches’ (Pieterse 2002: 60) it has to speak to all sectors of society and recognize that external indicators of progress do not necessarily serve those who least have the means to serve themselves.

This dissertation interrogates the representation of Africa as rising by examining the conditions that have led to the shift from an Afro pessimistic discourse to a more propulsive one. To do so, it examines how “Africa Rising” functions as a discourse articulated through transnational news networks, global financial, development, business organizations and Afrocentric digital platforms. It analyzes the recurring tropes, symbols and language used to signify the notion of “rising”, how various social actors are involved in the articulation of this discourse, the countries on the continent labelled as “rising”, which ones are not and why? It examines the conditions that have enabled the emergence of this discourse, and how they relate to other discourses. It examines the role of Afropolitans on the continent and the diaspora in the production and dissemination of this discourse through emerging Afrocentric digital platforms. Finally, it analyzes the tensions, contradictions and absences within this discourse and its implications for African countries. To address these questions, the rising discourse is theoretically contextualized within neoliberal globalization and development discourses, South-South relations, Postcolonial, journalism, digital media, and identity frameworks, to reveal the nuanced way that it articulates various ideological assumptions and the intersectional dimensions of race, gender and class in the production of the continent. Methodologically, this project applies a multi-sited critical discourse analysis, to a variety of news media texts from Anglo-American media, Afrocentric digital platforms and institutional reports. It also examines how various institutions deploy the notion of “Africa Rising.” Finally, this study includes interviews with content producers of Afrocentric digital platforms, to understand if and how they engage and situate their work within the “Africa Rising” discourse. This dissertation reveals that the Africa Rising discourse contradicts itself as it homogenizes the continent whilst pushing a neoliberal agenda that excludes countries within the continent that fail to adopt this agenda. It also reveals the tensions of neoliberalism on the continent, as countries with various profiles and histories struggle to adopt these policies. It reveals how various global social actors continue to influence affairs within the continent. Finally, it reveals the role that Afrocentric digital platforms are influencing perceptions about the African continent and how these platforms are intertwined with the neoliberal agenda. / Media & Communication

Yes / What has generated the unprecedented fascination with the Internet? What future lies ahead for computing as the Internet and its associated infrastructure expand? Will the network be able to cope with rising demands for carrying capacity and response speed? Will it change the way scientists, designers, artists, computer professionals, and home users work in the future? These are some of the wideranging questions being asked about the Internet and World Wide Web.