Heterogeneous photocatalysis is a novel technique for water purification. Publications on photocatalysis span a relatively recent period of not more than 25 years. This is a technique that, according to our extensive experience on the development of laboratory scale and pilot plant units, has great promise to eliminate water and air pollutants. Photocatalysis offers much more than competitive techniques where pollutants are transferred from phases; photocatalysis can achieve complete mineralization of pollutants leaving non-toxic species such as CO2 and H2O and can be exploited at close to room temperature and ambient pressure.
Chemical Reactor Modeling closes the gap between Chemical Reaction Engineering and Fluid Mechanics. The second edition consists of two volumes: Volume 1: Fundamentals. Volume 2: Chemical Engineering Applications In volume 1 most of the fundamental theory is presented. A few numerical model simulation application examples are given to elucidate the link between theory and applications. In volume 2 the chemical reactor equipment to be modeled are described. Several engineering models are introduced and discussed. A survey of the frequently used numerical methods, algorithms and schemes is provided. A few practical engineering applications of the modeling tools are presented and discussed. The working principles of several experimental techniques employed in order to get data for model validation are outlined. The monograph is based on lectures regularly taught in the fourth and fifth years graduate courses in transport phenomena and chemical reactor modeling and in a post graduate course in modern reactor modeling at the Norwegian University of Science and Technology, Department of Chemical Engineering, Trondheim, Norway. The objective of the book is to present the fundamentals of the single-fluid and multi-fluid models for the analysis of single and multiphase reactive flows in chemical reactors with a chemical reactor engineering rather than mathematical bias. Organized into 13 chapters, it combines theoretical aspects and practical applications and covers some of the recent research in several areas of chemical reactor engineering. This book contains a survey of the modern literature in the field of chemical reactor modeling.
While most research on inequality focuses on impoverished communities, it often ignores how powerful communities and elites monopolize resources at the top of the social hierarchy. In Privilege at Play, Hugo Ceron-Anaya offers an intersectional analysis of Mexican elites to examine the ways affluent groups perpetuate dynamics of domination and subordination. Using ethnographic research conducted inside three exclusive golf clubs and in-depth interviews with upper-middle and upper-class golfers, as well as working-class employees, Ceron-Anaya focuses on the class, racial, and gender dynamics that underpin privilege in contemporary Mexico. His detailed analysis of social life and the organization of physical space further considers how the legacy of imperialism continues to determine practices of exclusion and how social hierarchies are subtlety reproduced through distinctions such as fashion and humor, in addition to the traditional indicators of wealth and class. Adding another dimension to the complex nature of social exclusion, Privilege at Play shows how elite social relations and spaces allow for the resource hoarding and monopolization that helps create and maintain poverty.
Was ever a foreword requested for God's words? It is not indecent to write a preface for Hugo's "Growing Mandible"? After training in the Jaw's Old Testament, Hugo is writing the New One that he taught for 40 years long. Indeed, the last decade has been fertile in mechanical gadgets which have made diagnosis and surgery easier, such as, accurate CT 3-D images, and absorbable plating or osteodistraction, which brings a fine touch to treatment timing in children. However, all of this does not encompass the intellectual process, basic principles, tactics and procedures.
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