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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.
791

Mary Wingfield Scott: A Rebel with a Rubble Cause

Peninger, Kay 07 December 2011 (has links)
Mary Wingfield Scott (1895-1983) was a leading figure in the historic preservation movement in Richmond, Virginia. Scott demonstrated a preservation philosophy that transitioned from the sentimental, patriotic focus of early preservation efforts to a modern, academic approach that valued the built environment for its relationship to the city and its history. Scott educated persons on the value of preserving houses that were architecturally significant or connected to the city’s heritage. She documented the antebellum housing of Richmond in two books, founded the William Byrd Branch of the APVA, conducted walking tours throughout the city, wrote a newsletter for the William Byrd Branch, and purchased houses to prevent their demolition. Scott was a strong advocate of adaptive reuse, which she applied to the Greek Revival houses known as Linden Row. Scott’s approach to preservation is mirrored in the National Historic Preservation Act (NHPA) enacted in 1966 and Richmond’s 2009 Downtown Plan.
792

The Huhugam Heritage Center: An Administrative History and Case Study in Tribal Museum Issues

Esposito, Christina 01 January 2006 (has links)
The Museum Studies thesis project represented by this document entailed the compilation of a board of directors orientation packet for the Gila River Indian Community's recently established Huhugam Heritage Center (HHC) in Chandler, Arizona. The packet, including an administrative history of the institution and an annotated bibliography of museological resources on issues relevant to tribal museums, provides current and future members of the HEZC Board of Directors with information needed to effectively carry out their duties. Research and preparation of the administrative history constituted a case study of Native American tribal museum development. The history supplies members of the HHC Board of Directors with information critical to their understanding and oversight of the institution. The annotated bibliography reviews and serves as a guide to a body of literature addressing practical, ethical and theoretical issues relevant to persons working for, with or on behalf of tribal museums.
793

Co-creation: A study of intimacy and control

Brooks, Erin 01 January 2014 (has links)
Drawing from ongoing revitalization initiatives in Richmond, Virginia, this adaptive reuse project creates a structured dialogue between public and private expression to create a more immersive gallery experience for viewer and practitioner. The gallery experience is twofold; traditional object-based display and nontraditional process-based display. Preservation of the historic fabric of the existing Handcraft building at 1501 Roseneath is integrated with the transformative potential of introducing voyeuristic opportunities in creating a community arts center. Notions of voyeurism will center around ideas of visual connection and physical separation. This project questions if tactics of voyeurism, which inherently create physical barriers, can facilitate interaction and encourage co-creation in a creative setting. Structured moments of intimacy and control are accomplished through presented and found views of movement, object, and process. These moments of intimacy and control create a conceptual reciprocity which guides the design of this project. Ultimately, the redesign creates a dialogue between the process of making and the final product/object by facilitating interaction between the viewer and practitioner through different points of the creative process. The project moves away from exploiting the site’s formal, historical, and contextual components and encourages the audience member to engage with the maker through a corporeal, experiential encounter. The environment becomes a catalyst for cross-disciplinary creativity on an individual, group, and community level. The development of spaces that engage the creative mind and foster collaborative growth will serve the Richmond arts community and can act as an icon for successful urban transformation.
794

Adaptability in a State of Flux

Suleiman, Yasmeen 01 January 2016 (has links)
“[that] which does not change does not endure” – Henri Bergson Numbers only quantify the development Qatar is experiencing. In Doha, the city is a physical manifestation of these changes. The general approach to development follows a ‘tear down, build new’ model. Potential value is lost in what is discarded, despite necessity and convenience. This study addresses the topic by dispelling the assumed need to destroy in order to build. In doing so, it examines existing vernacular spaces that are often overlooked. The main application is analyzed through agents of space, such as buildings and the urban environment with varied outcomes. The study introduces and encourages an alternative narrative to the existing approach through transformative principles of preservation. It addresses the core concepts of temporality and permanence by negotiating what to retain and/or what to alter. Consequently, trace plays a major role as a process of honoring and embracing the past by materializing it. Incorporating novel elements allow for a shift in perception to occur. Value becomes a method of enriching and elevating a topic, idea, artifact, material, function, or experience.
795

Fighting for Place: The Rhetoric of Preservation in a Gentrifying Urban Neighborhood

Libby, Kelley 01 January 2010 (has links)
This paper looks at how preservationists in Oregon Hill, a gentrifying neighborhood in Richmond, Virginia, appropriated the identity of its working class residents, particularly through claims on a particular cluster of houses. By reframing the meaning of the houses, from homes to sites of historic significance, the preservationists began to “write” themselves into their environment. That is, by engaging the site of the houses both temporally (through narrative) and spatially (by establishing political boundaries), preservationists carved out a space for themselves in the neighborhood. This paper addresses the problems with this process, including the preservationists’ apparent lack of regard for a viable community as anything more than artifact, but also their masking of racial tensions in the neighborhood. Ultimately, though, it shows that preservation is a progressive act, and further, that place, rather than a representation of either progress or preservation, is actually the scene of the dialectic between both.
796

Liquéfaction d'écorces en vue de leur valorisation pour le développemnt de nouveaux produits de traitement du bois / Liquefaction of bark for the development of new products for wood preservation

Duret, Xavier 24 May 2013 (has links)
Les travaux de recherche présentés portent sur l'utilisation des produits de la liquéfaction des écorces d'épicéa dans le phénol pour la préservation du bois. Les produits de la liquéfaction permettent la synthèse d'une résine thermodurcissable de type phénolique. Les résines formulées sont imprégnées dans le bois suivi d'un durcissement in situ. Un prétraitement est mis au point dans le but d'enrichir la fraction phénolique des écorces. Ce prétraitement consiste à hydrolyser les polysaccharides principalement la cellulose et les hémicelluloses dans une solution acide. Ce prétraitement permet d'obtenir un taux de lignine dans les écorces de 60 %, et un taux de cellulose de 28 %. Un procédé de liquéfaction dans un système composé de phénol, d'eau et d'éthanol est optimisé dans le but d'obtenir des taux de liquéfaction supérieur à 85 %, et un taux d'écorces liquéfiées par rapport à la masse de phénol supérieur à 50 %. Les produits de la liquéfaction présentent l'avantage de polymériser sans ajout de formaldéhyde. La durabilité conférée au bois par les résines est bonne, surtout pour les résines phénol/formaldéhyde. Les résines sont peu lessivables. L'imprégnation du bois par les résines provoque un gonflement du bois ce qui améliore la stabilité dimensionnelle de ce dernier / This work focuses on the use of liquefaction products of spruce bark in phenol for the wood preservation. The liquefaction products allow the synthesis of phenolic thermosetting resins. The formulated resins were impregnated into the wood followed by in situ polymerization. A pretreatment was developed in order to increase the phenolic compounds in the spruce bark. This step is an acid hydrolysis of polysaccharides. This pretreatment allowed obtaining a Klason lignin content of 60 %, and a cellulose content of 28 %. A liquefaction process was developed in a mixture of solvent composed of phenol, ethanol, and water. The optimized experimental conditions allowed obtaining a liquefaction yield superior to 85 %, with liqui?ed bark/phenol ratio superior to 50 %. The lique?ed products had the advantage to polymerize without formaldehyde. The resins enhanced the wood durability especially for the phenol/formaldehyde resins. The leaching was low. The wood impregnation allowed a wood swelling, thereby the impregnated wood had a better dimensional stability
797

Preservation History of Art Nouveau Heritage in Hungary, Czech Lands and France

Zámbó, Lilla January 2013 (has links)
Preservation History of Art Nouveau Heritage in Hungary, Czech Lands and France Master Thesis Lilla Zámbó Abstract This master thesis discusses the preservation history of the most relevant architectural monuments of Art Nouveau from the perspective of different ideological and political systems of Hungary, the Czech Lands and France in the 20th century. The main objective of the thesis is to examine the influences of Art Nouveau in the society and vice versa through different heritage protection procedures and successful monument restorations, which took place in significant "Art Nouveau cities" of Europe: Budapest, Prague, Nancy and Strasbourg. The Art Nouveau style (1890-1914) was born as a reaction to the academic schools at the end of the nineteenth century and spread quickly by advertising a new architectural program, thanks to its special aesthetical, social and political contents. In order to satisfy the needs of the "modern" age and to create a better environment for the people, Art Nouveau broke with the previous dominant historical tendencies, not only in a mental way, but also in employing a new design and decorative elements. Thus the international practice-based, but locally unique and unprecedented works of the Art Nouveau were totally differing from the dominant eclectic townscapes, which is...
798

Analyse dynamique de la biodégradation du bois et des composites à base de bois et fibres végétales

Surini, Thibaud 05 October 2009 (has links)
La biodégradation du bois est étudiée pour comprendre et quantifier l’endommagement mécanique résultant. Il apparaît que le bois, et notamment le pin maritime, est sensible à une attaque fongique, faisant baisser sa résistance (en compression ou en fissuration) avant même la constatation d’une perte de masse. Cette observation oblige à développer des outils de détection précoce, comme la relaxométrie RMN, pour détecter l’apparition d’un pathogène sur des structures bois de plus en plus encouragées. Par ailleurs, l’emploi de composites à base de bois s’avère justifié pour rendre durable le matériau, et présente un avantage écologique, grâce au recyclage des éléments comme le plastique. Cet argument « vert » est d’une importance grandissante et requiert le développement de nouveaux procédés de préservation du bois. Ainsi, cette thèse étudie aussi le comportement à plus ou moins long terme des bois imprégnés d’anhydrides et d’huile d’origine végétale, ou encore du bois traité thermiquement. Des domaines autres que la mécanique sont abordés, afin d’expliquer l’ensemble des phénomènes intervenant durant une dégradation et comprendre les axes d’amélioration dans cette discipline « vivante ». / Wood biodegradation is studied in order to understand and quantify the mechanical damage. Wood, and especially maritime pine, is sensitive to a fungal attack that causes a decrease of its strength (compression or fracture resistance), before a weight loss occurs. This requires developing or ameliorating the tools of early detection, such as NMR relaxometry, in order to detect the appearance of a pathogen in wooden structures that are more and more appreciated. Besides, wooden composites are a good alternative to make the material more durable, and are ecologically interesting, as they permit to recycle some element, like plastics. This “green” effect is of main importance, which implies a development of new ways in wood preservation. This thesis, led in a short as well as in a long term scale, also studies the behaviour of wood, impregnated with anhydrides or oils from a vegetal origin, or even heat-treated wood. Not only mechanics is described, so that many phenomena are explained and perspectives are clarified.
799

Harry S. Truman National Historic Landmark District: a neighborhood case study

Steinman, Eva Melinda January 1900 (has links)
Master of Regional and Community Planning / Department of Landscape Architecture/Regional and Community Planning / Huston Gibson / In 2011, the United States Secretary of the Interior approved a proposal for expansion of the Harry S. Truman National Historic Landmark District in Independence, Missouri. The expansion of the historic district and the subsequent press resulting from the expansion was the inspiration for this report. The topic area of this report is historic preservation. Historic districts come with increased rules and regulations that can be seen as limiting a resident’s use of the properties within these districts. This report is concerned with the actual condition within a historic district with a central hypothesis that historic districts do have a positive association with property condition. In order to answer the research question, a multiple-case replication explanatory case study was performed using the original landmark district boundaries and two comparable nearby neighborhoods outside of the historic landmark district. The case study utilized secondary sources and in-field observations to analyze seven researchable factors about the parcels within the study areas. These factors were compared and contrasted during the cross case analysis. To further the understanding of the study area, a detailed profile of the City of Independence, Missouri, was produced. This profile looked at the historical development of the city, as well as economic and demographic statistics. The theoretical framework behind historic districts was also analyzed for this report. It is beneficial to look at this question in order to evaluate the potential implementation of a historic district that a planner may face in their municipality such as whether historic preservation regulations should be maintained, expanded, or eliminated or a historic district should be put in place. The report ends with a conclusionary chapter including recommendations, lessons for planning professionals, and ideas for further research.
800

Quantifying Performance Costs of Database Fine-Grained Access Control

Kumka, David Harold 01 January 2012 (has links)
Fine-grained access control is a conceptual approach to addressing database security requirements. In relational database management systems, fine-grained access control refers to access restrictions enforced at the row, column, or cell level. While a number of commercial implementations of database fine-grained access control are available, there are presently no generalized approaches to implementing fine-grained access control for relational database management systems. Fine-grained access control is potentially a good solution for database professionals and system architects charged with designing database applications that implement granular security or privacy protection features. However, in the oral tradition of the database community, fine-grained access control is spoken of as imposing significant performance penalties, and is therefore best avoided. Regardless, there are current and emerging social, legal, and economic forces that mandate the need for efficient fine-grained access control in relational database management systems. In the study undertaken, the author was able to quantify the performance costs associated with four common implementations of fine-grained access control for relational database management systems. Security benchmarking was employed as the methodology to quantify performance costs. Synthetic data from the TPC-W benchmark as well as representative data from a real-world application were utilized in the benchmarking process. A simple graph-base performance model for Fine-grained Access Control Evaluation (FACE) was developed from benchmark data collected during the study. The FACE model is intended for use in predicting throughput and response times for relational database management systems that implement fine-grained access control using one of the common fine-grained access control mechanisms - authorization views, the Hippocratic Database, label-based access control, and transparent query rewrite. The author also addresses the issue of scalability for fine-grained access control mechanisms that were evaluated in the study.

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