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Security of Natural Gas Supply through Transit Countries - - Bog - Springer-Verlag New York Inc. - Plusbog.dk

Security of Natural Gas Supply through Transit Countries - - Bog - Springer-Verlag New York Inc. - Plusbog.dk

Jens HETLAND & Teimuraz GOCHITASHVILI In contrast to oil, natural gas is usually routed through pipeline systems stretched from the wellhead to the end-user - although liquefied natural gas (LNG) is gaining increased interest; the commercialisation of natural gas fields is inherently linked to rigid transportation systems that require huge investments in tangible assets fixed to specific locations; the supply of natural gas is constrained by the transportation system, and requires access to appropriate infrastructure for transport and distribution; the trading of natural gas is traditionally associated with long-term contracts, albeit the duration per se of gas transport contracts appears to be less important after the deregulation of the energy markets. As diversification is strategically important to modern societies, the security of energy supplies becomes an inherent issue. In order to avoid situations of shortage, and to keep the price level stable, industrial nations are paying attention to the security of energy supplies. In brief terms this means that having more than one supplier of natural gas and more than one transport route would be strategically important. This also affects political issues and international law and regulations, economics, science and technology. The purpose of this book is to address opportunities extended from science and research pertaining to the exploitation and international trading of natural gas that involves transit countries. This especially relates to the transport and handling of gas from remote regions and pipelines that are

DKK 310.00
1

Natural Gas Hydrate - - Bog - Springer-Verlag New York Inc. - Plusbog.dk

Natural Gas Hydrate - - Bog - Springer-Verlag New York Inc. - Plusbog.dk

1. THE BEGINNINGS OF HYDRATE RESEARCH Until very recently, our understanding of hydrate in the natural environment and its impact on seafloor stability, its importance as a sequester of methane, and its potential as an important mechanism in the Earth''s climate change system, was masked by our lack of appreciation of the vastness of the hydrate resource. Only a few publications on naturally occurring hydrate existed prior to 1975. The first published reference to oceanic gas hydrate (Bryan and Markl, 1966) and the first publication in the scientific literature (Stoll, et a1., 1971) show how recently it has been since the topic of naturally occurring hydrate has been raised. Recently, however, the number of hydrate publications has increased substantially, reflecting increased research into hydrate topics and the initiation of funding to support the researchers. Awareness of the existence of naturally occurring gas hydrate now has spread beyond the few scientific enthusiasts who pursued knowledge about the elusive hydrate because of simple interest and lurking suspicions that hydrate would prove to be an important topic. The first national conference on gas hydrate in the U.S. was held as recently as April, 1991 at the U.S. National Center of the U.s. Geological Survey in Reston Virginia (Max et al., 1991). The meeting was co-hosted by the U.s. Geological Survey, the Naval Research Laboratory, and the U.S.

DKK 434.00
1

Group A Streptococcus - - Bog - Springer-Verlag New York Inc. - Plusbog.dk

Metabolomics - - Bog - Springer-Verlag New York Inc. - Plusbog.dk

The Role of Solar Ultraviolet Radiation in Marine Ecosystems - - Bog - Springer-Verlag New York Inc. - Plusbog.dk

The Self-Induced Oscillations of Rotors - Mikhail Y. Kushul - Bog - Springer-Verlag New York Inc. - Plusbog.dk

The Self-Induced Oscillations of Rotors - Mikhail Y. Kushul - Bog - Springer-Verlag New York Inc. - Plusbog.dk

The rapid increase in operating speeds of mechanisms and machines during the last few decades has posed mechanical and technical engineers aseries of new problems. One of these is that of the investigation of the dynamics of flexible rotors operating at speeds greater than the first- and higher-order critical speeds. In con­ temporary machine design we must cope with various machines and assemblies containing shafts which operate under such conditions: turbogenerators. gas and steam turbines. spinning shafts. high-capacity pumps, and a multitude of special-purpose machines. One of the problems in the dynamics of flexible rotors-the passage through the resonance state-has re­ cently been almost completely solved in the work of Yu. A. Mitropol''skii. F. M. Dirnentberg, V. O. Kononenko. A. P. Fillippov. and others. Much less attention has been devoted to two other interrelated problems in the dynamics of high-speed rotors: the loss of stability in regime-combining forced vibrations due to imbalance in the supercritical region, along with self-induced or self-exc1ted vibrations. These problems are rapidly becoming more important as self-induced vibrations occurring at speeds beyond the critical speed are being met with more and more often in practice [1-3]. One of the main causes for the loss of stability of a rotor in the supercritical region. as was first estab­ lished by Kimball in [4] and Newkirk in [5] during the ninteen-twenties, is the force due to interna1 friction.

DKK 663.00
1

Brain Acetylcholine and Neuropsychiatric Disease - - Bog - Springer-Verlag New York Inc. - Plusbog.dk

Brain Acetylcholine and Neuropsychiatric Disease - - Bog - Springer-Verlag New York Inc. - Plusbog.dk

Recent years have witnessed a resurgence of interest in the possible role of brain acetylcholine in neuropsychiatric disease. Research in this area has involved the renewed investigation of the cholinomimetics physostigmine and arecoline, and has been facilitated by the development of new potential cholinomimetics such as dimethylaminoethanol (Deanol) and choline chloride. Current investigators also have taken advantage of new approaches to neurochemical studies. Increasingly sensitive assay techniques such as gas chromatography/mass spectrometry have allowed investigators to measure low concentra­ tions of choline and acetylcholine in brain tissues. Improved neuroanatomical procedures such as immunohistochemical staining and the use of microelectrodes and micropipets have enabled skilled investigators to begin to map central acetylcholine pathways and to dissect the component parts of the complex interactions between brain acetylcholine and other neurotransmitters. The convergence of data from both clinical and basic studies now suggest that brain acetylcholine may be involved in affective illness, several movement disorders, and some cognitive disturbances. The purpose of this book is to summarize recent clinical and pre-clinical investigations on the possible role of brain acetylcholine in several neurological and psychiatric disorders. The volume is divided into six major sections: (1) Brain Acetylcholine and Psychiatric Disorders; (2) Brain Acetylcholine and Movement Disorders; (3) Brain Acetylcholine and Cognitive Function; (4) The Electrophysiology of Cholinergic Agents; (5) Interactions of Brain Acetylcholine and Other Neurotransmitters; (6) Biochemical and Pharmacological Aspects of CholinergiC Treatment Strategies.

DKK 434.00
1

Advances in Nuclear Science and Technology - - Bog - Springer-Verlag New York Inc. - Plusbog.dk

Advances in Nuclear Science and Technology - - Bog - Springer-Verlag New York Inc. - Plusbog.dk

The editors are happy to present the twentieth volume in the review series Advances in Nuclear Science and Technology. Lahey and Drew, our first authors, present a concise development of the equations for two-phase flow, essential to the understanding of normal and, even more, accidental behavior in water-cooled reactors. The commitment to the PWR in Europe (now joined by England in this respect) and the aftermath of Chernobyl in the U.S.S.R. put continuing emphasis on the need for good understanding of two-phase phenomena to provide good modelling. The second review, by Downar and Sesonske, of light water reactor fuel modelling, follows this LWR interest and emphasises a current major economic interest: how to get the most out of fuel. Recollecting that the capital cost of nuclear power is high, it is easy to overlook the fact that in the lifetime of a plant as much money is spent on fuel as capital. Optimization is worthwhile. The U.S. scene still does not practice recycling whereas the European scene does. Now that the United Kingdom is building its first (commercial) light water reactor, the linear modelling of burnup exploited by the second authors will prove even more useful, although previously exploited for advanced gas-cooled reactors. If the U.K. is behind in this respect, the recycling undertaken by France and England has led to trial use of plutonium in thermal reactors but, even more, the availability of plutonium for fast reactors.

DKK 663.00
1

Bioreaction Engineering Principles - Gunnar Liden - Bog - Springer-Verlag New York Inc. - Plusbog.dk

Bioreaction Engineering Principles - Gunnar Liden - Bog - Springer-Verlag New York Inc. - Plusbog.dk

The present text is a complete revision of the 2nd edition from 2003 of the book with the same title. In recognition of the fast pace at which biotechnology is moving we have rewritten several chapters to include new scientific progress in the field from 2000 to 2010. More important we have changed the focus of the book to support its use, not only in universities, but also as a guide to design new processes and equipment in the bio-industry. A new chapter has been included on the prospects of the bio-refinery to replace many of the oil- and gas based processes for production of especially bulk chemicals. This chapter also serves to make students in Chemical Engineering and in the Bio-Sciences enthusiastic about the whole research field. As in previous editions we hope that the book can be used as textbook for classes, even at the undergraduate level, where chemical engineering students come to work side by side with students from biochemistry and microbiology. To help the chemical engineering students Chapter 1 includes a brief review of the most important parts of microbial metabolism. In our opinion this review is sufficient to understand microbial physiology at a sufficiently high level to profit from the rest of the book. Likewise the bio-students will not be overwhelmed by mathematics, but since the objective of the book is to teach quantitative process analysis and process design at a hands-on level some mathematics and model analysis is needed. We hope that the about 100 detailed examples and text notes, together with many instructive problems will be sufficient to illustrate how model analysis is used, also in Bio-reaction Engineering.

DKK 795.00
1

Principles of Astrophysics - Charles Keeton - Bog - Springer-Verlag New York Inc. - Plusbog.dk

Principles of Astrophysics - Charles Keeton - Bog - Springer-Verlag New York Inc. - Plusbog.dk

Provides a physics-centered analysis of a broad range of astronomical systems that appeals to a large audience of advanced undergraduate students in physics and engineeringThis book gives a survey of astrophysics at the advanced undergraduate level. It originates from a two-semester course sequence at Rutgers University that is meant to appeal not only to astrophysics students but also more broadly to physics and engineering students. The organization is driven more by physics than by astronomy; in other words, topics are first developed in physics and then applied to astronomical systems that can be investigated, rather than the other way around. The first half of the book focuses on gravity. Gravity is the dominant force in many astronomical systems, so a tremendous amount can be learned by studying gravity, motion and mass. The theme in this part of the book, as well as throughout astrophysics, is using motion to investigate mass. The goal of Chapters 2-11 is to develop a progressively richer understanding of gravity as it applies to objects ranging from planets and moons to galaxies and the universe as a whole. The second half uses other aspects of physics to address one of the big questions. While "Why are we here?" lies beyond the realm of physics, a closely related question is within our reach: "How did we get here?" The goal of Chapters 12-20 is to understand the physics behind the remarkable story of how the Universe, Earth and life were formed. This book assumes familiarity with vector calculus and introductory physics (mechanics, electromagnetism, gas physics and atomic physics); however, all of the physics topics are reviewed as they come up (and vital aspects of vector calculus are reviewed in the Appendix).

DKK 593.00
1