elsevier science technology jun 2005 (4 Ergebnisse)

Buch. Zustand: 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. Zustand: Neu. Neuware - Aerospace structural design, especially for large aircraft, is an empirical pursuit dominated by rules of thumb and often-painful service experiences. Expertise on traditional materials is not transferable to new materials, processes and structural concepts. This is because it is not based on or derived from well-defined measures of safety. This book addresses the need for safe innovation based on practical, explicit structural safety constraints for use in innovative structures of the future where guiding service experience is non-existent. The book covers new ground by the demonstration of ways to satisfy levels of safety by focusing on structural integrity; and complementing the lack of service experience with risk management, based on flexible inspection methods recognizing that safety is a function of time. Fundamentally the book shoes demonstrates how safety methods can be made available to the engineering community without requiring huge statistical databases to establish internal and external loads distributions for use in reliability analysis. An essential title for anyone working on structural integrity, or composite structures. It will be of equal interest to aerospace engineers and materials scientists working in academia, industry and government. Demonstrates a practically manageable way to produce safe innovation using composites in environments with no service experience New approach to a subject that has not previously been treated in a holistic manner This book could not have come at a more topical time, Boeing are currently launching the first commercial plane made entirely of composite materials The focus of this book is Composite Materials butother fields of innovation could be treated in the same manner.

Buch. Zustand: Neu. Neuware - Just as our transport systems become more and more important to our economic and social well-being, so they become more and more crowded and more at risk from congestion, disruption, and collapse. Technology and engineering can provide part of the solution, but the complete solution will need to take account of the behaviour of the users of the transport networks.

Buch. Zustand: 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.