Elsevier science jan 2001 (5 resultados)

Buch. Condición: Neu. Neuware - In the small world of micrometer to nanometer scale many natural and industrial processes include attachment of colloid particles (solid spheres, liquid droplets, gas bubbles or protein macromolecules) to fluid interfaces and their confinement in liquid films. This may lead to the appearance of lateral interactions between particles at interfaces, or between inclusions in phospholipid membranes, followed eventually by the formation of two-dimensional ordered arrays. The book is devoted to the description of such processes, their consecutive stages, and to the investigation of the underlying physico-chemical mechanisms. The first six chapters give a concise but informative introduction to the basic knowledge in surface and colloid science, which includes both traditional concepts and some recent results. Chapters 1 and 2 are devoted to the basic theory of capillarity, kinetics of surfactant adsorption, shapes of axisymmetric fluid interfaces, contact angles and line tension. Chapters 3 and 4 present a generalization of the theory of capillarity to the case, in which the variation of the interfacial (membrane) curvature contributes to the total energy of the system. The generalized Laplace equation is applied to determine the configurations of free and adherent biological cells. Chapters 5 and 6 are focused on the role of thin liquid films and hydrodynamic factors in the attachment of solid and fluid particles to an interface. Surface forces of various physical nature are presented and their relative importance is discussed. Hydrodynamic interactions of a colloidal particle with an interface (or another particle) are also considered.Chapters 7 to 10 are devoted to the theoretical foundation of various kinds of capillary forces. When two particles are attached to the same interface (membrane), capillary interactions, mediated by the interface or membrane, appear between them. Two major kinds of capillary interactions are described: (i) capillary immersion force related to the surface wettability (Chapter 7), (ii) capillary flotation force originating from interfacial deformations due to particle weight (Chapter 8). Special attention is paid to the theory of capillary immersion forces between particles entrapped in spherical liquid films (Chapter 9). A generalization of the theory of immersion forces allows one to describe membrane-mediated interactions between protein inclusions into a lipid bilayer (Chapter 10).Chapter 11 is devoted to the theory of the capillary bridges and the capillary-bridge forces, whose importance has been recognized in phenomena like consolidation of granules and soils, wetting of powders, capillary condensation, long-range hydrophobic attraction, etc. The nucleation of capillary bridges is also examined.Chapter 12 considers solid particles, which have an irregular wetting perimeter upon attachment to a fluid interface. The undulated contact line induces interfacial deformations, which engender a special lateral capillary force between the particles. The latter contributes to the dilatational and shear elastic moduli of particulate adsorption monolayers.Chapter 13 describes how lateral capillary forces, facilitated by convective flows and some specific and non-specific interactions, can lead to the aggregation and ordering of various particles at fluid interfaces or in thin liquid films. Recent results on fabricating two-dimensional (2D) arrays from micrometer and sub-micrometer latex particles, as well as 2D crystals from proteins and protein complexes, are reviewed. Chapter 14 presents applied aspects of the particle-surface interaction in antifoaming and defoaming. The mechanisms of antifoaming action involve as a necessary step the entering of an antifoam particle at the air-water interface. The considered mechanisms indicate the factors for control of foaminess.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The fungi are one of the great groups of living organisms, comparable in numbers of species, diversity and ecological significance with animals, plants, protists and bacteria. This textbook deals with all fundamental and applied aspects of mycology, illustrated by reference to well studied species from major fungal groups. Since the publication of the first edition of The Fungi, there have been many important advances in the field of mycology. This second up-to-date edition has been revised and substantially expanded, and incorporates the application of methods of molecular biology, especially DNA technology to mycology. 608 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -An essential capacity of intelligence is the ability to learn. An artificially intelligent system that could learn would not have to be programmed for every eventuality; it could adapt to its changing environment and conditions just as biological systems do. Illustrating Evolutionary Computation with Mathematica introduces evolutionary computation to the technically savvy reader who wishes to explore this fascinating and increasingly important field. Unique among books on evolutionary computation, the book also explores the application of evolution to developmental processes in nature, such as the growth processes in cells and plants. If you are a newcomer to the evolutionary computation field, an engineer, a programmer, or even a biologist wanting to learn how to model the evolution and coevolution of plants, this book will provide you with a visually rich and engaging account of this complex subject. 578 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -'This book adds much to the already evolving field of Design for Environment; but it goes far beyond most works on this subject by surrounding the central notions of life cycle assessment with a scientific body of knowledge and with a more practical slant reflecting the reality of the organizations in which product development occurs. Through a focus on plastic products, the authors show the importance of making ties between basic technical knowledge and the process of life cycle engineering. Their approach offers a practical, deliberate way to make ecologically and economically sensible decisions about product reuse and recycling and other critical dimensions of product life behavior. They demonstrate a positive approach to designing products that fits into a sustainable economy through down-to-earth cases. While the book focuses on the life cycle engineering of plastics, it is only a short step to other materials and products. Beyond contributing to the technology of life cycle engineering, this text adds to the growing body of knowledge that argues for an fundamentally new way of thinking about economic and social activity--a new paradigm for sustainable social and industrial problem solving. Industrial ecology is such a new system for thinking about and implementing sustainability that draws its core set of ideas from the ecological world. Industrial ecology brings to the surface the idea of interdependence among members of a community-- natural or economic, and notes the material cycles that are central to a stable ecosystem. The life cycle engineering framework, coupled with sound scientific knowledge of materials behavior as articulated in this book, makes a giant step towards bringing the model of industrial ecology into everyday practice.' From the Preface by John R. EhrenfeldDirector, MIT Technology, Business and Environment ProgramCenter for Technology, Policy, and Industrial Development 220 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This publication is a comprehensive book on the welding of aluminium, aimed primarily at practising engineers and students of welding technology. After describing the properties of wrought and cast aluminium alloys, their applications, alloy designations and composition, both in heat-treatable and non heat-treatable alloys, it goes on to explain the process variables in weld metal transfer mechanisms, the ways of overcoming problems in GAS tungsten ARC welding, and distortion - also providing numerical methods of analysis. A thorough and timely guide to all aspects of aluminium welding. 160 pp. Englisch.…