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Description based on: v. 3, published in 2003.
This book deals with the rare earth elements (REE), which are a series of 17 transition metals: scandium, yttrium and the lanthanide series of elements (lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium). They are relatively unknown to the wider public, despite their numerous applications and their critical role in many high-tech applications, such as high-temperature superconductors, phosphors (for energy-saving lamps, flat-screen monitors and flat-screen televisions), rechargeable batteries (household and automotive), very strong permanent magnets (used for instance in wind turbines ...
High-temperature superconductors have distinct advantages compared to conventional conductors. Below their critical temperature, superconductors have immeasurably low ohmic losses. To maintain the superconducting state, superconductors require constant cooling. This study aims at identifying the environmental impacts of the application of superconductors in future grid technologies such as superconducting power cables.
Inorganic membrane science and technology is a new field of membrane separation technology which until recently was dominated by the earlier field of polymer membranes. Currently the subject is undergoing rapid development and innovation.The present book describes the fundamental principles of both synthesis of inorganic membranes and membrane supports and also the associated phenomena of transport and separation in a semi-quantitative form.Features of this book:- Examples are given which illustrate the state-of-the-art in the synthesis of membranes with controlled properties- Future possibilities and limitations are discussed- The reader is provided with references to more extended treatments in the literature- Potential areas for future innovation are indicated.By combining aspects of both the science and technology of inorganic membranes this book serves as a useful source of information for scientists and engineers working in this field. It also provides some observations of important investigators who have contributed to the development of this subject.
Many geologists have an equivocal attitude to fluid movements within the crust and the associated changes in the chemical and physical properties of crustal rocks. The controversies earlier this centuary between the "soaks" and the "pontiffs" memorably summarised by H. H. Read (1957) in The Granite Controversy have largely been resolved. Few would now advocate the formation of large granitic bodies by in situ transformation of pre-existing crust as the result of the passage of ichors without the formation of a granitic melt. To many geochemists fluid transport and metasomatism have become slightly suspect processes which at the most locally disturb the primary geochemical and isotopic signat...
This book offers an up-to-date overview of the coal deposits of South Limburg (Netherlands), the Aachen area (Germany), and the Campine area (Belgium). Although the amount of available literature on these coal deposits is quite vast, the majority of the texts date back to the mid-twentieth century, and most publications focus more on the stratigraphy of the coal layers and the rank of the coal. Moreover, the concept of continental drift is largely ignored in these publications. In addition to providing updated information, this book also discusses coal mining in these regions; the formation and petrography of coal; and the geological evolution of Western Europe/the Netherlands, Germany and Belgium. In order to explain the tropical nature of the flora in the Carboniferous period, paleogeographic aspects are also taken into account.
A unique insiders' account of what CIA intelligence analysts do and why it matters The common perception of a CIA officer is someone who collects secret intelligence abroad—a spy. However, the critical link between secrets and policy is the intelligence analyst. The CIA Intelligence Analyst brings to light the vital, but often-unseen, work of these officers. Roger Z. George, Robert Levine, and the contributors to this book demystify the profession of intelligence analyst at the CIA and describe how the wide array of analytic specialties—or "disciplines" in the language of the CIA—function. The disciplines range from political, economic, leadership, and military matters to science and t...
This Mining Environment Management Manual is developed for the benefit of the entire mining industry in the Country. The Manual has been designed in such a manner that it can be easily used by the engineers and environmentalists in the mining complexes in their efforts for the management of mining environment. The Manual presents the existing status and comprehensive overview of all the aspects of mining environment. Since environment is a developing subject the user of the Manual is suggested to, wherever necessary, consult the web-sites of MOEF and other concerned organizations for the latest status. The manual in nineteen chapters outlines the following for the benefit of the users. 1. Br...