Author: Christiane Griessen
Publisher:
ISBN:
Category :
Languages : fr
Pages : 182

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Author: Jean-Philippe Petitpierre
Publisher:
ISBN:
Category :
Languages : fr
Pages : 233

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Author: Rodolphe Jund
Publisher:
ISBN:
Category :
Languages : fr
Pages : 103

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L'ETUDE ELECTROCHIMIQUE DE L'OXYDATION ANODIQUE DES IONS MN**(2+) ET FE**(2+) EN MILIEU MARIN RECONSTITUE A MONTRE QUE LA FORMATION DE DEPOTS EST PLUS RAPIDE LORS DE L'OXYDATION DE L'ION MN**(2+); ALORS QU'ELLE EST PLUS LENTE DANS LE CAS DE L'ION FE**(2+). CELA POURRAIT ALORS PERMETTRE DE COMPRENDRE POURQUOI LA TENEUR MOYENNE EN MANGANESE EST PLUS ELEVEE QUE CELLE EN FER DANS LES NODULES POLYMETALLIQUES MARINS. EN EFFET, LES POURCENTAGES MOYENS EN MANGANESE ET EN FER SONT RESPECTIVEMENT DE 35% ET DE 15%. EN OUTRE, ON POURRAIT ETUDIER L'EXTRACTION SELECTIVE, PAR REDUCTION ELECTROCHIMIQUE, DES CATIONS METALLIQUES DE CES CONCRETIONS POLYMETALLIQUES

Author: Ahmed Belasri
Publisher: Springer Nature
ISBN: 9811554447
Category : Technology & Engineering
Languages : en
Pages : 659

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Book Description
This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.

Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 610

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Author: Wonbong Choi
Publisher: CRC Press
ISBN: 1439861889
Category : Science
Languages : en
Pages : 374

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Since the late 20th century, graphene-a one-atom-thick planar sheet of sp2-bonded carbon atoms densely packed in a honeycomb crystal lattice-has garnered appreciable attention as a potential next-generation electronic material due to its exceptional properties. These properties include high current density, ballistic transport, chemical inertness,

Author: Nasser Ennih
Publisher: Geological Society of London
ISBN: 9781862392519
Category : Science
Languages : en
Pages : 552

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Author: W. Petruk
Publisher: Elsevier
ISBN: 0080527337
Category : Technology & Engineering
Languages : en
Pages : 287

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Techniques of performing applied mineralogy investigations, and applications and capabilities of recently developed instruments for measuring mineral properties are explored in this book intended for practicing applied mineralogists, students in mineralogy and metallurgy, and mineral processing engineers. The benefits of applied mineralogy are presented by using in-depth applied mineralogy studies on base metal ores, gold ores, porphyry copper ores, iron ores and industrial minerals as examples. The chapter on base metal ores includes a discussion on the effects of liberation, particle sizes and surfaces coatings of Pb, Cu, Fe, Ca and So4- on the recoveries of sphalerite, galena and chalcopyrite. The chapter on gold discusses various methods of determining the quantities of gold in different minerals, including 'invisible' gold in pyrite and arsenopyrite, so that a balance of the distribution of gold among the minerals can be calculated. This book also discusses the roles of pyrite, oxygen, moisture and bacterial (thiobacillus ferrooxidans) on reactions that produce acidic drainage from tailings piles, and summarizes currently used and proposed methods of remediation of acidic drainage.

Author: Clement James Rodden
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 464

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Author: Nebojsa Nakicenovic
Publisher: Cambridge University Press
ISBN: 9780521645690
Category : Science
Languages : en
Pages : 322

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Book Description
Global energy needs are expanding substantially as populations grow and economies develop around the world. There is clear evidence that continued use of fossil fuels as the world's dominant energy supply is damaging the environment and causing changes in global climate patterns. People want higher levels of more efficient, cleaner, and less obtrusive energy services. How much of those needs will be met by fossil fuels, how much by alternative fuels, and how much by efficiency increases and expanded energy conservation is a wide open question. Global Energy Perspectives describes the results of a five-year joint study by the International Institute for Applied systems Analysis and the World Energy Council. It presents six long-term energy futures which lay out the alternatives among future fuels, technologies, efficiency gains, conservation patterns, and pollution levels, and pinpoints the key choices that are most likely to characterize the twenty-first century. The primary audience will include researchers, educators, policy makers in private and public sectors and other workers in the energy, technology, economics and environmental areas, but the book will appeal to anyone interested in the future of energy production as a prerequisite for human development.