elsevier bv aug 1999 (5 Ergebnisse)

Taschenbuch. Zustand: Neu. Neuware - This workshop was divided into three sections: optimal control problems; extremal problems of finite measures; and applications.The section on optimal control contains papers on differential gains; synthesis evaluation and system control under conditions of uncertain information; stability; and qualitative optimal control problems.The second section describes problems of finite measures under extreme conditions and numerical methods for solving such problems for non-smooth and discontinous functions.The third section contains applications.

Buch. Zustand: Neu. Neuware - This authoritative book on China's oil demand and government policies and practices rests on two essential foundations: first and foremost on the author's considerable knowledge of China's oil situation and prospects, together with his access to Chinese energy literature and data; and secondly, on that insight afforded to him and, therefore, his readers from his fluency in Chinese.The author analyzes the Chinese oil market and the rising pressure on Beijing to reform policies which constrain China's ability to meet soaring demand and to pay for crucial imports at a time of growing political and economic uncertainties. Dr Wang acknowledges the importance of China meeting its growing domestic oil demand, if at all possible, through national production. The sheer weight of China's population, and its burgeoning requirements as industrialization spreads into most regions, dwarfs the needs of others and places unprecedented strain on international oil trades.The author stresses the fact that the outcome is hard to define, yet the time required to tackle the nation's energy needs is not limitless. Moreover, he reminds the reader of the perennial difficulty in meeting widely disparate economic and energy needs in different regions of the vast country.

Buch. Zustand: Neu. Neuware - In recent years, the paradigm of video coding has shifted from that of a frame-based approach to a content-based approach, particularly with the finalization of the ISO multimedia coding standard, MPEG-4. MPEG-4 is the emerging standard for the coding of multimedia content. It defines a syntax for a set of content-based functionalities, namely, content-based interactivity, compression and universal access. However, it does not specify how the video content is to be generated. To generate the video content, video has to be segmented into video objects and tracked as they transverse across the video frames. This book addresses the difficult problem of video segmentation, and the extraction and tracking of video object planes as defined in MPEG-4. It then focuses on the specific issue of face segmentation and coding as applied to videoconferencing in order to improve the quality of videoconferencing images especially in the facial region. Modal-based coding is a content-based coding technique used to code synthetic objects that have become an important part of video content. It results in extremely low bit rates because only the parameters needed to represent the modal are transmitted. Model-based coding is included to provide background information for the synthetic object coding in MPEG-4. Lastly, MPEG-4, the first coding standard for multimedia content is described in detail. The topics covered include the coding of audio objects, the coding of natural and synthetic video objects, and error resilience. Advanced Video Coding is one of the first books on content-based coding and MPEG-4 coding standard. It serves as an excellent information source and reference for both researchers and practicing engineers.

Buch. Zustand: Neu. Neuware - This book is devoted to the interaction between elemental metals and (in)organic ligands in different reaction conditions. Metals could be activated for further reactions as cryosynthesis, electrosynthesis and tribosynthesis, some of them with or without ultrasonic and microwave treatment. The kinetics of metal dissolution in various non-aqueous media is discussed in detail.Many methods are used nowadays to synthesize coordination compounds. Metal complexes are obtained mainly by the direct interaction of the components (the ligands and a source of the complex-forming metal), as a result of ligand and metal exchange, and under the conditions of template synthesis, which also include the method of nascent reagents. In these methods the source of the metal is either its salts or carbonyls. At the same time, it has long been known that coordination compounds may be obtained as a result of direct synthesis from zero-valent metals. Methods for the synthesis of complex compounds under the conditions of gas-phase reactions, oxidative dissolution of zero-valent metals in non-aqueous media, and in the solid phase have been developed. These methods have become the basis of a new field in synthetic chemistry - the direct synthesis of coordination and organometallic compounds from zero-valent metals.Particular aspects of the above problem have been described in a series of reviews and monographs. However, on the whole these main parts of the direct synthesis of metal complexes has not been dealt with in the review and monograph publications on coordination chemistry. So, the main objective of this book is to analyze, discuss and generalize the existing information in the area of direct reactions leading to the coordination and organometallic reactions.Some methods of direct synthesis have been developed in the former USSR (in particular, a lot of works on cryosynthesis, pioneered (1972-1973) and recent works on electrosynthesis) but, in spite of their novelty and/or wide applicability, they are practically unknown elsewhere due to the language barrier. Thus, another objective of this book is to acquaint the readers with the mentioned achievements.Every chapter contains the tables which describe all the reported data on direct reaction between metal atoms, metal particles or bulk metals with (in)organic ligans. There are some illustrations also (for example, the scheme of the reactor for gas-phase reaction between metal small particles and &bgr;-diketones).

Buch. Zustand: Neu. Neuware - Hardbound. The proceedings of this workshop focus on recent developments in and research on heavy ion collisions. Furthermore it covers the physics which can be carried out by radioactive beams and with heavy ion storage rings. It contains review articles which examine in depth the latest research results and presents a state-of-art view of this fast exanding field. All the chapters are written by leading experts active in the field today.