elsevier science jun 2005 (12 risultati)

Taschenbuch. Condizione: Neu. Neuware - This is a hands-on designer's guide to the most important topics in analog electronics -- such as A/D and D/A conversion, op amps, filters, and integrating analog and digital systems -- aimed at engineers whose primary experience/education is in digital. It will teach such readers how to 'think analog' as well. Special attention is also given to fundamental topics, such as noise and how to use analog test and measurement equipment, that are often ignored in other analog titles aimed at professional engineers.\* Extensive use of case-histories and real design examples.\* Offers digital designers the right analog 'tool' for the job at hand.\* Conversational, annecdotal 'tone' is very easily accessible by students and practitioners alike.

Buch. Condizione: Neu. Neuware - With the mapping of the partition function graphs of the n-vector magnetic model in the n to 0 limit as the self-avoiding walks, the conformational statistics of linear polymers was clearly understood in early seventies. Various models of disordered solids, percolation model in particular, were also established by late seventies. Subsequently, investigations on thestatistics of linear polymers or of self-avoiding walks in, say, porous medium or disordered lattices were started in early eighties. Inspite of the brilliant ideas forwarded and extensive studies made for the next two decades, the problem is not yet completely solved in its generality. This intriguing and important problem has remained since a topic of vigorous and active research. This book intends to offer the readers a first hand and extensive review of the various aspects of the problem, written by the experts in the respective fields. We hope, the contents of the book will provide a valuable guide for researchers in statistical physics of polymers and will surely induce further research and advances towards a complete understanding of the problem. First book on statistics of polymers in random media. Contents straight away from research labs. Chapters written by foremost experts in the respective fields. Theories, experiments and computer simulations extensively discussed. Includes latest developments in understanding related important topics like DNA unzipping, Travelling salesman problem, etc. Comprehensive index for quick search for keywords.

Buch. Condizione: Neu. Neuware - Exposure to space flight has been shown to results in changes in many physiological systems, including the musculoskeletal system, the cardiovascular system, the immune system, and the neurovestibular system. These changes could negatively impact the ability of humans to undertake long-term habitation and exploration of space. However, there are limits to the studies that can be done with humans in space. Both ground-based and space flight animal model systems are currently used for these studies as an alternative. This volume covers the latest developments in the use of animal models to study the effects of the space flight environment on human physiological systems. \* Includes unique insights into the mechanisms and the potential role of gravity, stress, radiation and other space flight environment factors on physiological systems\* A complete history back to the beginnings of space flight\* Discusses the development of countermeasures to prevent any damaging effects of the space flight environment on physiological systems.

Buch. Condizione: Neu. Neuware - Quantitation of Amino Acids and Amines by Chromatography: Methods and Protocols is intended to serve as a ready-to-use guide for the identification and quantification of amino acids and amines in various matrices, providing an overview on the theory and protocol of available methods. It presents chromatograms with exact elution programs enabling visual analysis and compares the advantages-disadvantages of various chromatographic techniques. In accordance with the chronological order of the development of chromatographic methods, different techniques are discussed: The possibilities of gas chromatography (GC), followed by those of the high performance liquid chromatography (HPLC) and the most recent techniques capillary electrophoresis (CE), capillary, electrochromatography (CEC).The characteristics of the given chromatographic procedure, relating to the topic in question, are classified according to the preliminary preparation/derivatization process(es), which means the simple methods, suitable for the analysis of the selected compound(s) in natural form, are followed by various derivatization proposals. Detailed protocols provide the reader with guidance in beginning tasks and on how to improve current methods. This book appeals to a wide audience and is recommended for those looking towards the wider reaches of identification and quantification of amino acids and amines. \* Provides a systematic, and comprehensive summary of chromatographic techniques and derivatization processes\* Compares advantages/disadvantages of various chromatographic techniques\* Readers can undertake practical tasks using detailed protocols given in the book.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Virtual Machine technology applies the concept of virtualization to an entire machine, circumventing real machine compatibility constraints and hardware resource constraints to enable a higher degree of software portability and flexibility. Virtual machines are rapidly becoming an essential element in computer system design. They provide system security, flexibility, cross-platform compatibility, reliability, and resource efficiency. Designed to solve problems in combining and using major computer system components, virtual machine technologies play a key role in many disciplines, including operating systems, programming languages, and computer architecture. For example, at the process level, virtualizing technologies support dynamic program translation and platform-independent network computing. At the system level, they support multiple operating system environments on the same hardware platform and in servers.Historically, individual virtual machine techniques have been developed within the specific disciplines that employ them (in some cases they aren't even referred to as 'virtual machines?), making it difficult to see their common underlying relationships in a cohesive way. In this text, Smith and Nair take a new approach by examining virtual machines as a unified discipline. Pulling together cross-cutting technologies allows virtual machine implementations to be studied and engineered in a well-structured manner. Topics include instruction set emulation, dynamic program translation and optimization, high level virtual machines (including Java and CLI), and system virtual machines for both single-user systems and servers. 664 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Darwin's theory of evolution by natural selection was based on the observation that there is variation between individuals within the same species. This fundamental observation is a central concept in evolutionary biology. However, variation is only rarely treated directly. It has remained peripheral to the study of mechanisms of evolutionary change. The explosion of knowledge in genetics, developmental biology, and the ongoing synthesis of evolutionary and developmental biology has made it possible for us to study the factors that limit, enhance, or structure variation at the level of an animals' physical appearance and behavior. Knowledge of the significance of variability is crucial to this emerging synthesis. Variation situates the role of variability within this broad framework, bringing variation back to the center of the evolutionary stage. 592 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book describes the underlying water conditions and geologies that support viable riparia, illustrates the ecological characteristics of riparia, and discusses how riparia are used by human cultures as well as how riparia can be used to sustain environmental quality. In recent years riparian management has been widely implemented as a means of improving fisheries, water quality, and habitat for endangered species. This book provides the basic knowledge necessary to implement successful, long-term management and rehabilitation programs. 488 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Vascular Transport in Plants provides an up-to-date synthesis of new research on the biology of long distance transport processes in plants. It is a valuable resource and reference for researchers and graduate level students in physiology, molecular biology, physiology, ecology, ecological physiology, development, and all applied disciplines related to agriculture, horticulture, forestry and biotechnology. The book considers long-distance transport from the perspective of molecular level processes to whole plant function, allowing readers to integrate information relating to vascular transport across multiple scales. The book is unique in presenting xylem and phloem transport processes in plants together in a comparative style that emphasizes the important interactions between these two parallel transport systems. 592 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This sixth volume in this established series deals with the biochemical responses of fish to different environmental/ecological factors. Environmental Toxicology captures vital issues affecting the responses of fish to the chemical surroundings of their environment. Chapters included in this volume identify the systems found in fish to deal with xenobiotics, hormonal interactions initiated in the presence of these chemicals, the unique mechanisms used by fish to adjust to the present chemicals, and the new and evolving mixtures of chemicals in their environment. Also included, is a crucial review of the new methods being applied in fish systems to understand the effects of xenobiotics to fish fitness - a key theme in environmental health and critical to the future of fish populations. 560 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Fluorinated Materials for Energy Conversion offers advanced information on the application of fluorine chemistry to energy conversion materials for lithium batteries, fuel cells, solar cells and so on. Fluorine compounds and fluorination techniques have recently gained important roles in improving the electrochemical characteristics of such energy production devices. The book therefore focuses on new batteries with high performance, the improvements of cell performance and the improvement of electrode and cell characteristics. The authors present new information on the effect of fluorine and how to make use of fluorination techniques and fluorine compounds. With emphasis on recent developments, this book is suitable for students, researchers and engineers working in chemistry, materials science and electrical engineering. 592 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Nanoporous Materials IV contains the invited lectures and peer-reviewed oral and poster contributions to be presented at the 4th International Symposium on Nanoporous Materials, which will be hosted in Niagara Falls, Ontario, Canada, June 7-10, 2005. This volume covers complementary approaches to and recent advances in the field of nanostructured materials with pore sizes larger than 1nm, such as periodic mesoporous molecular sieves (e.g., MCM-41 and SBA-15) and related materials including clays, ordered mesoporous carbons, colloidal crystal templated materials, porous polymers and sol gels. The broad range of topics covered in relation to the synthesis and characterization of ordered mesoporous materials are of great importance for advanced adsorption, catalytic, separation and environmental processes as well as for the development of nanotechnology. This volume contains over 120 contributions related to the synthesis of ordered mesoporous silicas, organosilicas, nonsiliceous inorganic materials, carbons, polymers and related materials, their characterization and applications in adsorption, catalysis and environmental clean up. 980 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Proceedings of the world renowned ERCOFTAC (International Symposium on Engineering Turbulence Modelling and Measurements).The proceedings include papers dealing with the following areas of turbulence: Eddy-viscosity and second-order RANS models Direct and large-eddy simulations and deductions for conventional modelling Measurement and visualization techniques, experimental studies Turbulence control Transition and effects of curvature, rotation and buoyancy on turbulence Aero-acoustics Heat and mass transfer and chemically reacting flows Compressible flows, shock phenomena Two-phase flows Applications in aerospace engineering, turbomachinery and reciprocating engines, industrial aerodynamics and wind engineering, and selected chemical engineering problems Turbulence remains one of the key issues in tackling engineering flow problems. These problems are solved more and more by CFD analysis, the reliability of which depends strongly on the performance of the turbulence models employed. Successful simulation of turbulence requires the understanding of the complex physical phenomena involved and suitable models for describing the turbulent momentum, heat and mass transfer. For the understanding of turbulence phenomena, experiments are indispensable, but they are equally important for providing data for the development and testing of turbulence models and hence for CFD software validation. As in other fields of Science, in the rapidly developing discipline of turbulence, swift progress can be achieved only by keeping up to date with recent advances all over the world and by exchanging ideas with colleagues active in related fields. 1012 pp. Englisch.