Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 2209 for “"Mines"”.
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Mines and Miners of the Swauk
This paper is presented as an investigation into the history of the gold field lying in the mountains of northern Kittitas county and known as the Swauk.
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Assessing Thermal Comfort in Deep Underground Mines
… relative body comfort in deep hot underground mines is of great significance. This is because productivity, health, safety and the bottom line of mine operations depend on it. Comfort studies have been extensively researched, especially in the built and meteorological fields resulting in an …
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African workplace spirituality in South African mines
This research explores the role of spirituality in an African mining context with specific reference to spinal cord-injured mine workers. In this study, spinal cord-injured, black male South African workers were interviewed using a specifically constructed questionnaire. Their responses were …
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The Newburyport Mines of silver and lead
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mining Engineering and Metallurgy, 1876.
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Gateroad Design in Overlying Multi-Seam Mines
… duration of stress transferred from lower seam mines; and the second is to predict the effect of stress transferred from lower seam mines on opening stability. To solve these problems for both longwall and room-and-pillar mines, case study data were collected and analyzed to develop empirical …
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Recoverable reserve estimation in multiple seam mines
A reliable estimate of minable coal reserves is essential for long-term planning and for conservation of energy resources. In the majority of the world's coalfields, seams are found on multiple horizons, and coal recovery may be significantly reduced depending upon the magnitude of seam …
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Stress transfer between multi-seam longwall mines
The future of most underground coal mining in the USA will entail the extraction of coal under multi-seam mining conditions. Mine design in such an environment will require the accurate prediction of stress transfer between adjacent seams. The available knowledge on criteria controlling stress …
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Microclimate modeling of bat habitat in abandoned mines
Includes bibliographical references (page 61).
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Description of the mines of Ouray County, Colorado
Includes bibliographical references.
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American experience in taxing mines and mineral lands
Made available in DSpace on 2017-11-30T21:03:38Z (GMT). No. of bitstreams: 2 5991652.pdf: 16173890 bytes, checksum: cadbb602ddba4f64f416f1dd3cc39814 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1915
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The Control of Diesel Particulates in Underground Coal Mines
… to diesel particulate in underground coal mines. The four aims were to: a) Develop a method to test disposable diesel exhaust filters and if possible improve their performance b) Investigate the relationship between maintenance and diesel particulate generation c) Highlight the benefits of …
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Ground penetrating radar investigations in Upper Kama potash mines
… surrounding underground openings in the potash mines is critically important for safe mining, planning the methods of extraction of an orebody, and preventing the influx of ground water. Continuous common offset ground penetrating radar (GPR) data were acquired in the potash mine operated by the …
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Remediation of Abandoned Mines Using Coal Combustion By-products
… when pyrite that is present in abandoned coal mines comes in contact with oxygen and water, forming acidic water rich in dissolved metals. Grout injection into mines is a popular technique that provides a permanent solution to control AMD. The main objective of this study was to investigate the …
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Computerized planning technique for western surface coal mines, A
Includes bibliographical references.
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A stochastic model of the South African gold mines
A stochastic model of the South African Gold mines was constructed using Contingent Claims Analysis. This method allows the modelling of the major sources of uncertainty that the gold mines face, namely, uncertainty surrounding the future gold price, the exchange rate, the inflation rate, and the …
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Determining the size and life of underground coal mines
… per shift, number of production sections in mines, mine output, and mine field dimensions were analyzed. Thereby, the unit cost of coal was expressed as a function of mine field dimensions, mine design ca pacity, and mine service life. The problem was then formulated as a nonlinear …
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An economic evaluation of backfilling in Virginia's coal mines
… the backfilling methods applicable for coal mines in southwest Virginia. Following identification of variables that can affect the selection of a backfilling method, a multi-attribute decision analysis technique is developed. This technique is applied to a mine model which is representative …
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