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Model Assisted Survey Sampling
88,99 € *
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The book covers the various approaches to modeling the in-cylinder processes such as mixture formation, combustion and formation of exhaust emissions in diesel and gasoline engines. Due to their complexity emphasis is put on multi-dimensional spray, combustion and emission formation models. However, phenomenological as well as zero-dimensional thermodynamic models, which are still widely used in engine development because of their computational efficiency, are addressed as well. Example calculations of each model type are compared with corresponding experimental data ¿ represented in diagrams as well as in images resulting from modern optical measuring techniques ¿ in order to discuss the capabilities of today's simulation models as well as the shortcomings that still exist either because of oversimplifying assumptions or because of insufficient knowledge of the real processes. The reader will be provided with an overview of the most important simulation models describing the in-cylinder processes of internal combustion engines. In addition, suggestions are made about which modeling approach is appropriate for a specific type of problem.Now available in paperback, this book provides a comprehensive account of survey sampling theory and methodology suitable for students and researchers across a variety of disciplines. It shows how statistical modeling is a vital component of the sampling process and in the choice of estimation technique. The first textbook that systematically extends traditional sampling theory with the aid of a modern model assisted outlook. Covers classical topics as well as areas where significant new developments have taken place.

Anbieter: buecher
Stand: 23.10.2020
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Studies in Quantum Statistical Mechanics
68,00 € *
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Part I: The problem of Bose-Einstein condensation of an ideal gas is dealt with to determine the condensate statistics. A brief description of the inter-relations between various ensembles of statistical mechanics is given. Thereafter, various canonical ensemble methods applied to the trapped ideal Bose gas are discussed in great detail. Further, strategies to convert the canonical ensemble results into the microcanonical ensemble description are also discussed. Part II: Various topics bound by a common theme based on the principle of atomic coherence are studied in the second part. First a scheme exploiting interference of incoherent pump processes to achieve strong control over the total spontaneous emission from a three-level atom is discussed. Thereafter various schemes to achieve radiative cooling without the presence of spontaneous emission on the cooling transition are considered. This allows cooling to an internal absolute zero of temperature in an atomic system in very small number of steps. In the last chapter a transient regime for gain without inversion is considered in a three level lambda system that may be easier to implement.

Anbieter: Dodax
Stand: 23.10.2020
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Grid Integration of Electric Mobility
178,56 € *
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The UN Climate Change Conference in Paris, with its key topics of global warming and deteriorating air quality, will speed up the advance of electric mobility. CO2-neutral and zero-emission mobility require electricity to be generated from regenerative sources of energy. Power generation from wind and solar energy, however is dependent on the weather and is therefore not stable. The irregularities that occur in nature can result in unacceptable voltage fluctuations in the power grid. For that reason, the availability of highly flexible loads and storage systems is becoming particularly important. Electric vehicles, with their grid-relevant properties as controllable power consumers and electricity storage systems, could help to stabilize future power grids.

Anbieter: Dodax
Stand: 23.10.2020
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Lithium Ion Batteries
145,00 CHF *
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Rechargeable Batteries with high energy density are in great demand as energy sources for various purposes, e.g. handies, zero emission electric vehicles, or load leveling in electric power. Lithium batteries are the most promising to fulfill such needs because of their intrinsic discharbe voltage with relatively light weight. This volume has been conceived keeping in mind selected fundamental topics together with the characteristics of the lithium ion battery on the market. It is thus a comprehensive overview of the new challenges facing the further development of lithium ion batteries from the standpoint of both materials science and technology. It will be useful for any scientist involved in the research and development of batteries in academia and industry, and also for graduate students entering the field, since it covers important topics from both fundamental and application points of view.

Anbieter: Orell Fuessli CH
Stand: 23.10.2020
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Handbook of Exergy, Hydrogen Energy & Hydropowe...
239,99 € *
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In thermodynamics, the exergy of a system is the maximum work possible during a process that brings the system into equilibrium with a heat reservoir. When the surroundings are the reservoir, exergy is the potential of a system to cause a change as it achieves equilibrium with its environment. After the system and surroundings reach equilibrium, the exergy is zero. In contrast, the hydrogen economy is a proposal for the distribution of energy by using hydrogen. Hydrogen gives off energy when it is combined with oxygen, but the hydrogen itself has to first be produced, which requires more energy than is released when it is used as a fuel. Therefore to use hydrogen as a fuel, it first has to be generated by electrolysis of water or another method. A reduction in carbon dioxide emission would only be achieved if the energy used to split the water is obtained from non carbon-based sources. This book gathers the latest research from around the globe in the study of exergy, hydrogen energy and hydropower. Some topics discussed are the sustainability assessment of hydroelectricity, using exergy to allocate carbon dioxide and other emissions for cogeneration systems, ultra-pure hydrogen production in membrane reactors and exergetic evaluation of thermochemical biomass conversion processes.

Anbieter: Thalia AT
Stand: 23.10.2020
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Lithium Ion Batteries
133,99 € *
ggf. zzgl. Versand

Rechargeable Batteries with high energy density are in great demand as energy sources for various purposes, e.g. handies, zero emission electric vehicles, or load leveling in electric power. Lithium batteries are the most promising to fulfill such needs because of their intrinsic discharbe voltage with relatively light weight. This volume has been conceived keeping in mind selected fundamental topics together with the characteristics of the lithium ion battery on the market. It is thus a comprehensive overview of the new challenges facing the further development of lithium ion batteries from the standpoint of both materials science and technology. It will be useful for any scientist involved in the research and development of batteries in academia and industry, and also for graduate students entering the field, since it covers important topics from both fundamental and application points of view.

Anbieter: Thalia AT
Stand: 23.10.2020
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