Download or read book Estudios sobre mineralog a metalurg a y geolog a econ mica written by Luis Fleury and published by . This book was released on 1951 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geothermal Resources written by R. Bowen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the Arab oil embargo of 1974, it has been clear that the days of almost limitless quantities of low-cost energy have passed. In addition, ever worsening pollution due to fossil fuel consumption, for instance oil and chemical spills, strip mining, sulphur emission and accumulation of solid wastes, has, among other things, led to an increase of as much as 10% in the carbon dioxide content of the atmosphere in this century. This has induced a warming trend through the 'greenhouse effect' which prevents infrared radiation from leaving it. Many people think the average planetary temperatures may rise by 4°C or so by 2050. This is probably true since Antarctic ice cores evidence indicates that, over the last 160000 years, ice ages coincided with reduced levels of carbon dioxide and warmer interglacial episodes with increased levels of the gas in the atmosphere. Consequently, such an elevation of temperature over such a relatively short span of time would have catastrophic results in terms of rising sea level and associated flooding of vast tracts of low-lying lands. Reducing the burning of fossil fuels makes sense on both economic and environmental grounds. One of the most attractive alternatives is geothermal resources, especially in developing countries, for instance in El Salvador where geothermal energy provides about a fifth of total installed electrical power already. In fact, by the middle 1980s, at least 121 geothermal power plants were operating worldwide, most being of the dry steam type.
Download or read book Engineer s dictionary Spanish English and English Spanish written by Louis A. Robb and published by . This book was released on 1987 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aves de piedra barro y oro en la Costa Rica precolombina written by Patricia Fernández Esquivel and published by . This book was released on 2009 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: A scholarly and physically stunning presentation of the use of bird imagery in pre-Columbian Costa Rican art, with an equal balance of photos and text. Includes indigenous culture, contemporary links, and comparative photos of artifacts and actual birds
Download or read book Mold Core Test Handbook written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Capitalists Caciques and Revolution written by Mark Wasserman and published by . This book was released on 1984 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Python 101 written by Michael Driscoll and published by Lulu.com. This book was released on 2014-06-03 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn how to program with Python from beginning to end. This book is for beginners who want to get up to speed quickly and become intermediate programmers fast!
Download or read book Mineral Information Service written by California. Division of Mines and Geology and published by . This book was released on 1965 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Management of Cyanide in Gold Extraction written by Mark J. Logsdon and published by . This book was released on 1999 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mercury Mining and Empire written by Nicholas A. Robins and published by Indiana University Press. This book was released on 2011-07-25 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: On the basis of an examination of the colonial mercury and silver production processes and related labor systems, Mercury, Mining, and Empire explores the effects of mercury pollution in colonial Huancavelica, Peru, and Potosí, in present-day Bolivia. The book presents a multifaceted and interwoven tale of what colonial exploitation of indigenous peoples and resources left in its wake. It is a socio-ecological history that explores the toxic interrelationships between mercury and silver production, urban environments, and the people who lived and worked in them. Nicholas A. Robins tells the story of how native peoples in the region were conscripted into the noxious ranks of foot soldiers of proto-globalism, and how their fate, and that of their communities, was—and still is—chained to it.
Download or read book The Canadian Mining and Metallurgical Bulletin written by and published by . This book was released on 1928 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Foseco Ferrous Foundryman s Handbook written by John Brown and published by Elsevier. This book was released on 2000-08-01 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Foseco Ferrous Foundryman's Handbook is a practical reference book for all those concerned with making castings in any of the commonly used alloys, by any of the usual moulding methods. International SI units are used throughout, but in almost all cases conversions to the more familiar Metric and Imperial units are given. Wherever possible, Casting Alloy Specifications include equivalent specifications for several countries as well as international specifications. Individual chapters cover the casting of light alloys, copper-based alloys, all types of cast-iron and steel. For each group of alloys, specifications and typical applications are described, together with details of melting practice, metal treatment and casting practice. Sand moulding materials, including green sand and chemically bonded sands are also included.
Download or read book Advances in Gold Ore Processing written by Mike D. Adams and published by Elsevier. This book was released on 2005-12-02 with total page 1077 pages. Available in PDF, EPUB and Kindle. Book excerpt: The gold processing industry is experiencing change. As free-milling and oxide ores become depleted, more complex polymetallic and refractory ores are being processed, coupled with increasing pressure for stricter environmental compliance. Recent years have also seen a steady reduction in mineral processing and metallurgy graduates and a gradual loss of older operating experience. A contribution to documenting current and future best practice in gold ore processing seems timely.The focus of this volume is on advances in current gold plant operation, from conception to closure; chapters also cover innovations at the bench and pilot-scale level that would be expected to find commercial application at some stage. Sufficient coverage is also given to the chemistry and engineering aspects. The general principle behind the structure of the volume is that of flowsheeting based on unit operations and applied to a mineralogical classification of gold ore types. From concept to closure, this book covers all unit operations, mineralogies and processes that are relevant to dealing with today's complex orebodies.Practical experience is vital to the successful development, operation and closure of any operation. The 42 chapters have been contributed by a total of 66 authors and co-authors who are experts from countries spanning the globe, and representing exhaustive practical knowledge covering many disciplines relevant to gold processing.* Current best practice as elucidated by a select panel of experts in the field* Innovations at the bench and pilot-scale level that would be expected to find commercial application at some stage* Mineralogical-based approach to flowsheeting
Download or read book Proceedings of the Geological Association of Canada written by Geological Association of Canada and published by . This book was released on 1971 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The River of the Mother of God written by Aldo Leopold and published by Univ of Wisconsin Press. This book was released on 1992-12-01 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: His name is inextricably linked with a single work, A Sand County Almanac, a classic of natural history literature and the conservationist's bible. This book brings together the best of Leopold's essays.
Download or read book The Compass of Sigma Gamma Epsilon written by and published by . This book was released on 1977 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contributions to Geology written by and published by . This book was released on 1977 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
