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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.
421

Montana Logging Costs: Resources for Continued Industry Viability

Meek, Joshua P 10 February 2014 (has links)
Montanas logging industry has changed significantly over the past two decades. Increased operating costs and subsequent diminishing returns, combined with a shifting paradigm in regards to active forest management have had significant impacts on the economic and demographic make-up of the industry. One way to address these changes and mitigate the associated challenges of continued viability is through analysis of the factors and constraints impacting routine operational costs. Two methods were employed to estimate regional logging costs and changes over time. First, to provide a resource for comparison between commonly-utilized logging equipment, the hourly owning and operating costs of select mechanical, ground-based machines were calculated using the machine rate method from data supplied by western Montana equipment dealers. Second, an expert opinion survey of Montana and Idaho loggers was conducted, asking respondents to provide a simulated bid for a harvest unit typical of this region. The results from each method were compared to historic cost data, and reasons for increased logging expense were studied and discussed for fixed and variable cost categories, as were the impacts of changing operating conditions on costs. Results from the machine rate analysis suggest that inflation-adjusted operating costs for ground-based equipment are 47-93% higher than 20 years ago. Expert opinion survey results suggest that though costs are increasing, loggers are bidding at levels lower than actual costs merely to stay in business. Research on the reasons for these increases showed that costs have increased across certain fixed and variable categories, namely in equipment purchase price, fuel, labor wages and benefits, and repair/maintenance expense. Further, the number of operational days per year has decreased, administrative costs have increased, and there is increasing concern over volatile market conditions and the uncertainty over guaranteed future work. Clearly, this situation should be of considerable concern to those interested in retaining this sector in Montana. Vigilant consideration of operating costs and productivity will become increasingly critical to maintaining current infrastructure and helping to ensure the future of active forest management in Montana.
422

The use of atomization for washing and showering to conserve water /

Morse, Alexander B. January 1976 (has links)
No description available.
423

Relationships between conservators, community partners and urban conservation areas: a case study of nature reserves on the Cape flats

Eksteen, Lameez January 2012 (has links)
<p>Cape Town is a unique city. It has a global biodiversity hotspot, in the midst of an urban area. Historically, nature conservation practice excluded and marginalized certain groups of people based on their race and class. This has led to peoples&lsquo / disconnection from nature. Rapid biodiversity loss is a major concern for conservators. In the last three decades, there has been a paradigm shift in conservation practice in certain parts of the world. The Cape Flats Nature programme based in Cape Town followed suit and aimed to stimulate a bottom-up participatory approach to conservation and replace the traditional top-down management strategy. The programme was tasked to reconcile the challenges of complex and conflicting relationships between urban poverty, unequal access to resources and biodiversity conservation. This study was aimed at investigating the relationships between conservation management, community partners and urban conservation areas. These relationships are vital for the progression of new conservation practice in places where people live and work. In addition, the transformative aspects of conservation in relation to social inclusion and the shift in conservation approaches was investigated. The study was conducted at five of Cape Town&lsquo / s nature reserves, Edith Stephens Wetland Park, Macassar Dunes, Harmony Flats, Wolfgat and Witzands Aquifer Nature Reserves. Data collection included in depth interviews with key informants from various conservation organizations, the Cape Flats Nature Programme team, the managers of the selected reserves and community partners. Others included observational methods and analysis of secondary data. It was found that relationships between conservators and local communities are not easily created and maintained but relationships regardless of its depth are equally beneficial to communities and the conservators. Balancing social needs with conservation needs is a struggle for conservators but many successes came in cases where this balance was realized. In addition, the transformation of conservators&lsquo / identity has changed community perceptions of conservation practice holistically. Although, many informants feel that transformation continues to remain unequal.</p>
424

Conservation for survival: a conservation strategy for resource self-sufficiency in the Khumbu region of Nepal

Sherpa, Mingma Norbu (Paldorje) 24 May 2013 (has links)
The purpose of this practicum is to develop a strategy for resource self-sufficiency and nature conservation in the Khumbu region of Nepal. The strategy seeks to ensure the prudent management and conservation of the Park so that not only the flora and fauna but also the indigenous human population may continue to live in harmony with their environment. This study examines the historical perspectives of land use, current management strategies of the Park, a theoretical supply and demand assessment of land and labour resources, and prospective problems and opportunities. The methods used in the study include a literature review, examination of published and unpublished research articles, international journals, internal reports, personal communications with persons knowledgeable in the study area and the author's own observations and experience. This study indicates that the Sherpa's spiritual commitment under a system of social and community control of resource management for sustainable use has been disrupted by internal and external political, social and economic factors. Traditional practices of land resource management are no longer in operation in the villages most affected by tourism. Despite the changes that tourism has brought about, sherpas maintain a strong identification with their culture and religion. National and international aid agencies are offering strong support and technical solutions for the reduction of the fuelwood crisis and environmental degradation. However, a broader perspective is required to solve fuelwood and food shortages; for example, the existing socio-economic realities should be incorporated into project planning. The main problem in achieving sustainable development in the Khumbu region seems to have stemmed from gaps in government legislation and lack of co-ordination between government, aid agencies, and loca1 people. It is recommended that a workable strategy be developed to confront the prevailing problems by increasing productivity of land and labour resources without destroying any aspect of the environment. Àn informed local body should be set up to co-ordinate development and conservation projects and programmes.
425

Montana Logging Costs: Resources for Continued Industry Viability

Meek, Joshua Padraic 07 February 2014 (has links)
Montanas logging industry has changed significantly over the past two decades. Increased operating costs and subsequent diminishing returns, combined with a shifting paradigm in regards to active forest management have had significant impacts on the economic and demographic make-up of the industry. One way to address these changes and mitigate the associated challenges of continued viability is through analysis of the factors and constraints impacting routine operational costs. Two methods were employed to estimate regional logging costs and changes over time. First, to provide a resource for comparison between commonly-utilized logging equipment, the hourly owning and operating costs of select mechanical, ground-based machines were calculated using the machine rate method from data supplied by western Montana equipment dealers. Second, an expert opinion survey of Montana and Idaho loggers was conducted, asking respondents to provide a simulated bid for a harvest unit typical of this region. The results from each method were compared to historic cost data, and reasons for increased logging expense were studied and discussed for fixed and variable cost categories, as were the impacts of changing operating conditions on costs. Results from the machine rate analysis suggest that inflation-adjusted operating costs for ground-based equipment are 47-93% higher than 20 years ago. Expert opinion survey results suggest that though costs are increasing, loggers are bidding at levels lower than actual costs merely to stay in business. Research on the reasons for these increases showed that costs have increased across certain fixed and variable categories, namely in equipment purchase price, fuel, labor wages and benefits, and repair/maintenance expense. Further, the number of operational days per year has decreased, administrative costs have increased, and there is increasing concern over volatile market conditions and the uncertainty over guaranteed future work. Clearly, this situation should be of considerable concern to those interested in retaining this sector in Montana. Vigilant consideration of operating costs and productivity will become increasingly critical to maintaining current infrastructure and helping to ensure the future of active forest management in Montana.
426

Spatial Distribution and Quantification of Forest Treatment Residues for Bioenergy Production

Wells, Lucas A. 07 February 2014 (has links)
The availability and spatial distribution of forest treatment residues are prerequisites to supply chain development for bioenergy production. To accurately estimate potential residue quantities, data must be provided to simulate stand-level silviculture across the landscape of interest. However, biomass utilization assessments often consider broad regions where adequate data are not supplied. At present, these measures are addressed using strategic level assessments and broad-based management that may not be applicable to all areas of the landscape. This thesis introduces a new methodology for spatially describing stand-level treatment residue quantities based on detailed silvicultural prescriptions and site specific management. Using National Agricultural Imagery Program (NAIP) imagery, the forest is segmented into treatment units based on user defined size constraints. Using a remote sensing model based on NAIP imagery and Forest Inventory and Analysis plot data, these units are attributed with stand-level descriptions of basal area, tree density, above ground biomass, and quadratic mean diameter . The outputs are used to develop silvicultural prescriptions and estimate available treatment residues under three alternative management scenarios at a range of delivered prices per bone dried ton (bdt) to a nearby bioenergy facility in southwestern Colorado. Using a marginal cost approach where treatment costs were covered by merchantable yields, the breakeven delivered price of treatment residues in this study is $48.94 per bdt yielding 167,685 bdt following a 10 year management simulation at a 5,000 acre per year annual allowable treatment level.
427

Whitebarkpine Forest Restoration: Cultural Perspectives from Blackfoot Confederacy Members

Augare-Estey, Kodi Jae 07 February 2014 (has links)
Whitebark pine (WBP) is a keystone species on the brink of extinction, threatened by fire suppression, white pine blister rust, along with mountain pine beetle infestation and climate change. The Blackfoot Confederacy from the Northern Rockies region, as part of their traditional practices and Worldview, has long gathered the nutrient-rich seeds and cambium of whitebark pine as part of their subsistence. This paper demonstrates how the perspectives, indigenous intelligence and worldview of members of the Blackfoot Confederacy could inform and supplement western science and increase the probability of success in restoration efforts whitebark pine forest ecosystems. With Blackfoot Confederacy acculturation and cultural assimilation, their oral history of traditional practices have faded, and the wealth of traditional practices and indigenous intelligence about their natural world could fade away without it ever being adequately documented. Further efforts are necessary to identify and retrieve indigenous intelligence to provide better ecological understanding of whitebark pine forest ecosystems, to give greater acknowledgement of Indigenous ways of knowing, and to preserve the Blackfoot Confederacy and their cultural identity and integrity.
428

Linking Conservation with Sustainable Mountain Livelihoods: A Case Study of Northern Pakistan

KHAN, SHAH RAEES 20 September 2012 (has links)
This study investigated the livelihood strategies of mountain communities and their relationships with natural resources in northern Pakistan. Interventions by the State to conserve biodiversity have led to the “decommonisation” of the commons and with strict sanctions on the local communities restricting their access to the resources. This has resulted in severe conflicts between the State and the local communities. In light of the adverse effects of “decommonisation,” prevailing institutions, international conservation organizations, have initiated the “re-coupling” of the local communities with resource management. However, this process of “new-commonisation” appears to be failing because it has not provided “a sense of ownership” among the local communities. To investigate the pertinent issues, this research encompassed five areas for analysis: 1) the dynamics of mountain livelihoods; 2) the vulnerability and coping strategies of mountain communities; 3) the “decommonisation” of mountain commons; 4) international NGO-led “new commonisation” of natural resource endowments, with efforts to involve local communities; and 5) the formulation of a framework towards sustainable mountain livelihoods. The study collected evidence from two communities in northern Pakistan, namely, Shimshal and Naltar Valley, during July 2006-September 2008. A four-tier field method was used that included introductory workshops, household surveys, focus group discussions, and data validation. This investigation identified the following findings: 1) there has been a significant reduction in the livelihood options of local communities due to State-induced “Protected Areas,” 2) traditional pasture management systems have been facing serious threats from State institutional measures; 3) some communities have proactively attempted to diversify their economy by expanding household portfolios into non-agricultural sectors; 4) external drivers of local socio-economic conditions have augmented local vulnerability; 5) in the face of external threats, some traditional institutions have transformed themselves into formalized institutions with the capability to establish cross-scale linkages. There is a potential to manage the commons through revitalized local institutions that would promote “self-governance” in managing the commons. It stresses the need to understand the local livelihoods from the perspective of the local people, so as to advance effectively the conservation of natural resources in the context of mountain areas.
429

All-air moisture and energy recovery system for fuel cell exhaust

Still, Michael Joseph 12 1900 (has links)
No description available.
430

Essergy analysis of boilers

Boteler, Kevin Currie 08 1900 (has links)
No description available.

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