elsevier science technology aug 2006 (5 resultados)

Buch. Condición: Neu. Neuware - The First Asian Polyolefin Workshop introduces the recent developments and the research activities on polyolefin technology in Asia, which is becoming one of the important places in technology as well as in economy. Asian Countries have experienced remarkable economic growth in the last decade as represented by China. The Asian Polyolefin Workshop (APO) was planned to provide a venue for Asian scientists and engineers identifying and exploring the areas of common interests. The workshop was held in Nara on December 7th-9th, 2005, with more than 100 participants from China, Israel, India, Japan, Korea, Russia, Spain and Thailand. The following research topics were covered with 34 oral and 37 poster presentations; 1) Heterogeneous olefin polymerization catalysts Traditional Ziegler-Natta, Phillips, heterogenized metallocene and post metallocenes 2) Homogeneous olefin polymerization catalysts Traditional Ziegler-Natta, metallocene and post metallocenes 3) Precise synthesis of new polyolefins 4) Structure and properties of polyolefins 5) Engineering aspects of olefin polymerization \* Presents the latest proceedings on polyolefin technology \* The first book contributed by almost all the distinguished scientists in Asian countries\* Contains papers not only from academia but also from industry.

Buch. Condición: Neu. Neuware - The application of biosensors is expanding in different areas. These are portable and convenient devices that permit the rapid, accurate, and reliable detection of analytes of interest present either in the atmosphere or in aqueous or in liquid phases. The detection of glucose levels in blood for the effective management of diabetes is one. Though different biosensors have been designed for an increasing number of applications, the kinetics of binding (and dissociation) of analytes by the receptors on the biosensor surfaces has not been given enough attention in the open literature. This is a very important area of investigation since it significantly impacts biosensor performance parameters such as stability, sensitivity, selectivity, response time, regenerability, etc. Binding and Dissociation Kinetics for Different Biosensor Applications Using Fractals addresses this critical need besides helping to correct or demonstrate the need to modify the present software available with commercial biosensors that determines the kinetics of analyte-receptor reactions on biosensor surfaces. \* first book to provide detailed kinetic analysis of the binding and dissociation reactions that are occuring on the biosensor surface\* addresses the area of analyte-receptor binding and dissociation kinetics occurring on biosensor surfaces\* provides physical insights into reactions occuring on biosensor surfaces.

Buch. Condición: Neu. Neuware - Adsorption, Ion Exchange and Catalysis is essentially a mixture of environmental science and chemical reactor engineering. More specifically, three important heterogeneous processes, namely, adsorption, ion exchange and catalysis, are analysed, from fundamental kinetics to reactor design with emphasis on their environmental applications. In Chapter 1, the subject of air and water pollution is dealt with. Data about pollutants and emission sources are given and the treatment methods are shortly presented. In Chapter 2, the very basics and historical development of adsorption, ion exchange and catalysis are presented as well as their environmental applications. Chapter 3 is devoted to heterogeneous processes and reactor analysis. All types of reactors are described in depth and reactor modelling, hydraulics and mass/heat transfer phenomena are examined for each type of reactor. Chapters 4 and 5 are dedicated to adsorption & ion exchange and catalysis, respectively. The basic principles are presented including kinetics, equilibrium, mass/heat transfer phenomena as well as the analytical solutions of the reactor models presented in Chapter 3. In the sixth chapter, the subject of scale up is approached. The two Annexes at the end of the book contain physical properties of substances of environmental interest as well as unit conversion tables. Finally, nearly all the examples contained are based on real experimental data found in literature with environmental interest. Most of the examples consider all aspects of operation design kinetics, hydraulics and mass transfer. \* Provides basic knowledge of major environmental problems and connects them to chemical engineering.

Buch. Condición: Neu. Neuware - Lead covers the salient aspects of the chemistry of lead, its environmental impact, and its effects on health. The technical, economic and social importance of Lead, at the present time, is beyond all doubt. However, over the last few decades little attention has been given to its behaviour (the properties and applications of its compounds, the environmental distribution of these derivatives, and their impacts on living creatures), this book addresses that gap. It includes coverage of historical aspects, lead mining and production, metal properties, common lead compounds, uses of lead and its derivatives, coordination chemistry, organometallic chemistry, environmental chemistry, toxicity mechanisms, and treatment strategies for lead poisoning. Finally, describing analytical procedures for the determination of lead in chemical, biological and environmental samples. \* Written by a team of university teachers and researchers with extensive experience in the fields of the chemistry, analytical determination and environmental and health impact of lead and other heavy metals\* For readers interested in the chemistry and biochemistry of lead and its effects on ecosystems\* Provides comprehensive knowledge about lead toxicity and preventive measures against lead poisoning.

Buch. Condición: Neu. Neuware - Packed bed columns are largely employed for absorption, desorption, rectification and direct heat transfer processes in chemical and food industry, environmental protection and also processes in thermal power stations like water purification, flue gas heat utilization and SO2 removal.These Separation processes, are estimated to account for 40%-70% of capital and operating costs in process industry. Packed bed columns are widely employed in this area. Their usage also for direct heat transfer between gas and liquid, enlarge their importance. They are the best apparatuses, from thermodynamical point of view, for mass and heat transfer processes between gas and liquid phase. Their wide spreading is due to low capital investments and operating costs. Since 1995 there has not been published a specialised book in this area, and this is a period of quick development of packed columns. Packed Bed Columns reflects the state of this field including the author's experience on creating and investigating of new packings, column internals and industrial columns. \* Considers the theories of mass transfer processes and shows how they help the construction of highly effective packings\* Complete information about the performance characteristics of different modern types of highly effective packings \* Considers the models for calculation and areas of their application.