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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.
131

Controlling factors in the future development of the Chinese coal industry

Wang, K. P. January 1947 (has links)
Thesis (Ph. D.)--Columbia University, 1946. / Published also without thesis note. Vita. Bibliography: p. [222]-231.
132

A study of the relationship between coal mine fatalities and the length of time a mine has been opened

Dorset, Nancy L., January 1900 (has links)
Thesis (M.S.)--West Virginia University, 2002. / Title from document title page. Document formatted into pages; contains xi, 106 p. : ill. Vita. Includes abstract. Includes bibliographical references (p. 103-105).
133

Future impacts of coal distribution constraints on coal cost

McCollum, David L. January 1900 (has links)
Thesis (M.S.)--University of California, Davis, 2007. / Text document in PDF format. Title from PDF title page (viewed on August 30, 2009). "Received by ITS-Davis: August 2007"--Publication detail webpage. Includes bibliographical references (p. 148-154).
134

Die strukturveranderung des deutschen kohlenmarktes seit 1910

Fedák, Stephan von, January 1932 (has links)
Inaug.-diss.--Halle-Wittenberg. / "Literaturverzeichnis":p.[6]-8.
135

Der kohlenbedarf des staates und seine deckung

Koerper, Willy, January 1913 (has links)
Inaug.-diss.--Heidelberg. / Curriculum vitae. "Literatur": p. [7]-8.
136

A study of the cracking of the tar vapors and of the gas from the low temperature carbonization of coal ...

Crawford, Thomas Stephen, January 1931 (has links)
Thesis (Ph. D.)--Columbia University, 1931. / Vita. "Authorized preprint from copyrighted articles in Gas age-record, volume 68, numbers 5, 6, and 7, August 1, 8, and 15, 1931." Bibliography: p. 35.
137

Die Verhältnisse des Kohlenbergbaues in den Vereinigten Staaten mit besonderer Bezugnahme auf die Lage der Bergarbeiters seit dem Jahre 1885

George, John Edward, January 1899 (has links)
Inaug.-Diss.--Halle. / Vita. Includes bibliographical references.
138

The dissolution and swelling of bituminous coal in n-methyl-pyrrolidone

Stoffa, Joseph M. January 2006 (has links)
Thesis (M.S.)--West Virginia University, 2006. / Title from document title page. Document formatted into pages; contains viii, 100 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 86-88).
139

Geological controls for coal exploration and mining

Noppé , Mark Adrian January 1992 (has links)
The identification and interpretation of geological features is essential for the planning and ultimate success of any mining venture. Examples of geological features significant for mining are presented, and their identification during exploration discussed. In particular, the importance of coal qualities, seam thickness and seam elevation are emphasised in relation to longwall mining. Geostatistical analysis provides a powerful tool for improving the prediction and decision-making capabilities of both exploration and mine geologists. The availability of geostatistics, and the benefits resulting from its application, are demonstrated using actual data for calorific value, seam thickness and seam elevation. Contamination of run-of-mine coal is a common problem on highly-mechanised collieries. The problem generally arises from over-cutting of the designated mining horizon. A practical system for monitoring and controlling contamination on a mechanised bord-and-pillar and longwall colliery is presented. The results and benefits of applying such a system are cited for an actual longwall colliery. Numerical geological predictions are not always reported in terms of the reliability of such estimates. Many of these values can be reported in terms of confidence limits, particularly for routine grade control purposes. The methods and benefits of such reporting are described and illustrated by way of examples for calorific value and contamination levels.
140

Coal purification

Mthembi, Pabalala Meshack 08 September 2005 (has links)
Please read the abstract in the section 00front of this document / Dissertation (MSc (Chemistry))--University of Pretoria, 2005. / Chemistry / unrestricted

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