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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.
81

Craft of Dwelling: Reappropriation of Salvageable Mediums into a Lasting, Domestic Architecture

Koberling, James W. 27 October 2014 (has links)
No description available.
82

Slow denudation within an active orogen: Ladakh Range, northern India

Reynhout, Scott A. 26 September 2011 (has links)
No description available.
83

Architectural Palimpsest: Presencing the Marks of Process, Weathering, and Use

Kashyap, Pooja 28 June 2016 (has links)
No description available.
84

Acidification and buffering mechanisms in soil ecosystems

McCourt, George H. January 1993 (has links)
No description available.
85

An Anchoring Urban Cemetery, Memphis, Tennessee

Ricks, Lauren Mackenzie 23 June 2011 (has links)
This thesis proposes an urban infill cemetery in Memphis, Tennessee. By infilling seven blocks within the arts district of downtown Memphis with a new urban cemetery, further significance is given to both the city and the cemetery. Because it would be a newly built cemetery, it could initially function as an urban park and become a cemetery over time as the space is needed to remember the dead. The same elements of the cemetery would compose the park, but by allowing a slow transformation from park to cemetery, the resulting public space will carry much more meaning than either space could do alone. The cemetery connects the continuing evolution of the city with the lives of its citizens. Each block is different yet linked and intertwined, just like Memphis residents. The blocks are multi-use and as such, share the history and legacy of those who have died with those who live in and visit the city. / Master of Architecture
86

Long Branch Nature Center - modern primitivism and the constructed dialogue of being within nature

Hartle, Brett David 02 December 2014 (has links)
The Architect's first drawn line marks a significant moment where alteration to the site is conceived and intervention with nature is beset. Equilibrium of the natural order; vegetative, habitat, hydrology, and geology are all in a vulnerable state. Rarely do these develop into harmonious balances. More often they are imposed instances. The Industrial Revolution forever changed the relationship between humans and nature, tilting the weight of power towards man. While humans capacity for innovation and destruction have grown enormously, our dependence on the natural cycles and resources of the planet remain and grow more voracious. Yet simultaneously, modern progress has facilitated the physical and psychological detachment of that interdependence. The fundamental elements of our existence are veiled through the efficiency of urbanization and its derivatives of specialization, mass-production, and globalization. This project is an examination of the interrelationship between humans and nature through the lens of civic architecture within a naturalistic setting. The fundamental thesis of this project is that there is a primal biological thread that connects human beings to the natural order, whether on a visceral or conscious level. This project explores the belief that humans intrinsically yearn to reinforce that bond - awakening primordial instincts developed over millions of years of evolutionary survival that have been suppressed by the artifice of modern life. Through a process of retreat and contemplation, this project offers the opportunity of individuals to evaluate and rebalance their own scales with nature and find their own accord and harmony. / Master of Architecture
87

Weathering of wood surfaces: characteristics, mechanisms, and prevention

Chang, Shang-Tzen January 1982 (has links)
Photodegradation of southern yellow pine, its mechanisms and means of prevention were studied. Changes in brightness and color were recognized when wood was exposed outdoors or to ultraviolet light. Scanning electron micrographs showed that most of the cell walls on irradiated transverse surface were separated at the middle lamella region. Half-bordered pits and bordered pits on irradiated longitudinal surf aces were found to be readily destroyed by ultraviolet light. It was also noted that progressively granular surfaces formed on the cell walls of latewood in response to irradiation with ultraviolet light. Spectrophotometric studies on the chemical changes of exposed wood, lignin, and cellulose revealed that photochemical reactions primarily took place in lignin, leading to the generation of carbonyl- and carboxylic-containing degradation products of low molecular weight. Formation of hydroperoxides, one of the mechanisms attributed to the photodegradation of wood, was illustrated from iodometry UV absorption studies. The hydroperoxide concentration at the wood surface increased when wood was irradiated in the presence of singlet oxygen generators. The hydroperoxide concentration decreased when wood was irradiated in the presence of singlet oxygen quenchers. These findings imply the participation of singlet oxygen and the formation of hydroperoxides at the photo-irradiated wood surfaces. It was found that the photodegradative effects on wood surfaces were mitigated by treating wood surfaces with aqueous solutions of chromic acid or ferric chloride, by treating with penetrating chemical agents such as trial, glycol and 1-octadecanol, or by coating with clear polymeric ultraviolet stabilizers such as homo- and copolymer of 2-hydroxy-4(3-methacryloxy-2-hydroxypropoxy)benzophenone. Experimental results showed that the polymeric ultraviolet stabilizers provided the best protection of the treatments tried, and were themselves stable and resistant to photodegradation. Possible chemistry and mechanisms of protection provided by organic and inorganic chemical agents are discussed. / Ph. D.
88

The Silver Fraction - A Weathered Inebriation: Plans, Elevations, Sections, Details, Models and Texts for a Brewery and a Biergarten on the bank of the Potomac River, Alexandria, Virginia

Zellweger, Jon Robert 15 April 2004 (has links)
Architecture is an exhaustive act. With the Herculean efforts of the patron, the architect and the builder, a building comes into being. Materials are collected and transformed in order to create a place for Man to dwell. That is, materials occurring in their natural state are transformed by the Hand of Man and thereby enter it His realm. In turn, the Manmade becomes situated in and a part of the natural world. This relationship is a Material Reciprocity. In the Timaeus, a concept of a world soul is outlined in which all elements that compose the physical world (the "ten-thousand things" of the Tao-Te Ching) are endowed with consciousness: the Anima Mundi. How does architecture become part of Place? What role does Weathering play in this act? How does Man's understanding of Weathering's accretions enoble architecture? Sun Moon Earth BREW / Master of Architecture
89

A Wall a Bench a Tree

Johnson, Bryan Wacey 02 April 2020 (has links)
A quest for agelessness in what we make seems to hold great allure. The spotless, the seamless, the immaterial, the idealized all labor in an attempt to escape the collection of dust and to transcend time, evincing neither origin nor decay. There is a rift between that manner of making which strives for an imperishable, ageless quality and the manner of making that embraces the poetics of material and temporality and mortality. It is beautiful to imagine the made thing that embodies a fable about welcoming inevitable change. From the moment it is made, it is gracefully, eloquently transforming; it willingly trades youth for handsome qualities that it did not first possess. It is commendable when a made thing achieves timelessness without striving vainly for agelessness. This thesis uses the vehicle of making an outdoor sitting room- composed of a wall, a bench, and a tree- to explore questions of the passage of seasons, of weathering, and of how the made thing can celebrate its own temporal nature. / Master of Architecture / There is a rift between that manner of making which strives for an imperishable, ageless quality and the manner of making that embraces the poetics of material and temporality and mortality. It is commendable when a made thing achieves timelessness without striving vainly for agelessness. This thesis uses the vehicle of making an outdoor sitting room- composed of a wall, a bench, and a tree- to explore questions of the passage of seasons, of weathering, and of how the made thing can celebrate its own temporal nature.
90

Physical Rock Weathering Along the Victoria Land Coast, Antarctica

Elliott, Christine Eleanor January 2006 (has links)
The purpose of this research was to investigate the physical weathering of rock along the Victoria Land Coast, Antarctica. It was designed to contribute to the Latitudinal Gradient Project, a joint initiative between the New Zealand, Italian and United States Antarctic Programmes. The Latitudinal Gradient Project aims to improve our understanding of the ecosystems of the Dry Valleys and ice-free areas of the Ross Sea Region and, by using latitude as a proxy measure, identify how they might be affected by future climate change. The approach taken for this research was to use information on rock (from one rock group) temperature and moisture conditions gathered from three field locations to inform laboratory simulations. The laboratory simulations would then be used to investigate the weathering of small rock blocks and aggregates. Two temperature cycles approximating those experienced during summer and spring/autumn were identified and simulations undertaken in a specially adapted freezer. Three levels of moisture were applied: no moisture, half saturation and full saturation. Results of the laboratory simulations indicated that although rocks responded in different ways to different processes, granular disintegration took place even in the absence of additional moisture and did not require crossings of the 0 OC isotherm, nor were high levels of moisture required for across zero temperature cycling to produce weathering effects. A model that related weathering to latitude was developed and changes in climate explored. It was found that the weathering effect of summer and spring/autumn cycles was different and depended on rock characteristics rather than latitude. Increasing the ratio of summer to spring/autumn temperature cycles by 10% indicated that weathering could decrease or remain the same depending on the particular rock. Changes in temperature were found to be more important than changes in moisture. A weathering index that related local climate and rock properties to weathering was also developed and this highlighted the difficulties of using laboratory results to predict field rates of weathering. There were some surprising results from the field, including the presence of much more moisture on the surface of the rock, primarily from blowing snow, than had been predicted for this dry environment. This occurred even in the presence of negative rock surface temperatures. In addition, winter rock surface temperatures can fluctuate up to 25 OC, getting as warm as -10 OC. Macro-climate and changes in air temperature in response to foehn and katabatic winds were the drivers for these fluctuations.

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