Download or read book Catalysis and Zeolites written by Jens Weitkamp and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zeolites occur in nature and have been known for almost 250 years as alumino silicate minerals. Examples are clinoptilolite, mordenite, offretite, ferrierite, erionite and chabazite. Today, most of these and many other zeolites are of great interest in heterogeneous catalysis, yet their naturally occurring forms are of limited value as catalysts because nature has not optimized their properties for catalytic applications and the naturally occurring zeolites almost always contain undesired impurity phases. It was only with the advent of synthetic zeolites in the period from about 1948 to 1959 (thanks to the pioneering work of R. M. Barrer and R. M. Milton) that this class of porous materials began to playa role in catalysis. A landmark event was the introduction of synthetic faujasites (zeolite X at first, zeolite Y slightly later) as catalysts in fluid catalytic cracking (FCC) of heavy petroleum distillates in 1962, one of the most important chemical processes with a worldwide capacity of the order of 500 million t/a. Compared to the previously used amorphous silica-alumina catalysts, the zeolites were not only orders of magnitude more active, which enabled drastic process engineering improvements to be made, but they also brought about a significant increase in the yield of the target product, viz. motor gasoline. With the huge FCC capacity worldwide, the added value of this yield enhancement is of the order of 10 billion US $ per year.

Download or read book Proceedings of the Annual Meeting written by Association of Colleges and Secondary Schools of the Southern States (U.S.). Meeting and published by . This book was released on 1928 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the Annual Meeting of the Southern Association of Colleges and Secondary Schools written by Southern Association of Colleges and Secondary Schools (U.S.). Meeting and published by . This book was released on 1929 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biotechnology for Pulp and Paper Processing written by Pratima Bajpai and published by Springer Science & Business Media. This book was released on 2011-11-24 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the most up-to-date information available on various biotechnological processes useful in the pulp and paper industry. Each of the twenty chapters covers a specific biotechnological process or technique, discussing the advantages, limitations, and future prospects of the most important and popular processes used in the industry. Topics covered include tree improvement, pulping, bleaching, deinking, fiber modification, biosolids management, and biorefining.

Download or read book Proceedings of the Annual Meeting of the Association of Colleges and Secondary Schools of the Southern States written by Association of Colleges and Secondary Schools of the Southern States and published by . This book was released on 1929 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book H R 4271 the National Science Education Act H R 4272 the National Science Education Enhancement Act and H R 4273 the National Science Education Incentive Act written by United States. Congress. House. Committee on Science and published by . This book was released on 2001 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cumulated Index Medicus written by and published by . This book was released on 1981 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Geological Survey Professional Paper written by and published by . This book was released on 1955 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geological Survey Professional Paper written by Geological Survey (U.S.) and published by . This book was released on 1955 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Review of Literature on Evaporation Suppression written by George B. Magin and published by . This book was released on 1960 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Intelligent Tutoring Systems written by Barry P. Goettl and published by Springer. This book was released on 2003-06-29 with total page 647 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first International Conference on Intelligent Tutoring Systems (ITS) was held ten years ago in Montreal (ITS ’88). It was so well received by the international community that the organizers decided to do it again in Montreal four years later, in 1992, and then again in 1996. ITS ’98 differs from the previous ones in that this is the first time the conference has been held outside of Montreal, and it’s only been two years (not four) since the last one. One interesting aspect of the ITS conferences is that they are not explicitly bound to some organization (e.g., IEEE or AACE). Rather, the founder of these conferences, Claude Frasson, started them as a means to congregate researchers actively involved in the ITS field and provide a forum for presentation and debate of the most currently challenging issues. Thus the unifying theme is science. This year’s “hot topics” differ from those in the earlier ITS conferences as they reflect ever changing trends in ITS research. A few of the issues being examined at ITS ’98 include: Web based tutoring systems, deploying ITS in the real world, tutoring and authoring tools, architectures, and knowledge structure and representation.

Download or read book McDonald and Avery s Dentistry for the Child and Adolescent E Book written by Jeffrey A. Dean and published by Elsevier Health Sciences. This book was released on 2015-08-10 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: You can count on McDonald: the go-to source for expert, complete coverage of oral care for infants, children, and teenagers for over half a century. McDonald and Avery’s Dentistry for the Child and Adolescent, 10th Edition discusses pediatric examination, development, morphology, eruption of the teeth, and dental caries in depth — and emphasizes prevention and the treatment of the medically compromised patient. Boasting a new design and handy Evolve site, this new edition by Jeffrey A. Dean equips you with the latest diagnostic and treatment recommendations in the fast-growing field of pediatric dentistry. Complete, one-source coverage includes the best patient outcomes for all of the major pediatric treatments in prosthodontics, restorative dentistry, trauma management, occlusion, gingivitis and periodontal disease, and facial esthetics. A clinical focus includes topics such as such as radiographic techniques, dental materials, pit and fissure sealants, and management of cleft lip and palate. Practical discussions include practice management and how to deal with child abuse and neglect. Evolve site provides you with the best learning tools and resources. UPDATED! More emphasis on preventative care and treatment of medically compromised patients helps you provide more effective care. NEW! Easier-to-follow design.

Download or read book Journal of Veterinary Dentistry written by and published by . This book was released on 1996 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecohydrology written by David M. Harper and published by CABI. This book was released on 2008 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Linking biological and physical processes at the river basin sclae: the origins, scientific background and scope of ecohydrology; Patterns and processes in the catchment; Nutrient processes and consequences; Lotic vegetation processes; Processes influencing aquatic fauna; Ecohydrological modelling for managing scarce water resources in a groundwater-dominated temperate system; The benefits and risks of ecohydrological models to water resource management decisions; Nutrient budget nodelling for lake and river basin restoration; Ecohydrology driving a tropical savannah ecosystem; The mid-european agricultural landscape: catchment-scale links between hydrology and ecology in mosaic lakeland regions; The ecohydrological approach as a tool for managing water quality un large South American rivers; Ecohydrological analysis of tropical river basin development schemes in Africa; Ecohydrological management of impounded large rivers in the former Soviet Union; Paleohydrology: the past as a basis for understanding the present and predicting the future; Ecohydrology: understanding the present as a perspective on the future - global change.

Download or read book Index of Conference Proceedings written by British Library. Document Supply Centre and published by . This book was released on 2002 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Trends written by and published by . This book was released on 1995-02 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New York Politics written by Edward V. Schneier and published by Cornell University Press. This book was released on 2023-03-15 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: New York Politics examines aspects of state government that are often hidden in the secret sessions of the parties' legislative conferences: the closed-door budget; a complicated array of opaque agencies, authorities, and local governments; and a campaign finance system that lacks transparency. New York is unique among the American states in the existence of regional and demographic divisions, making it difficult to govern. Edward V. Schneier, Antoinette Pole, and Anthony Maniscalco bring clarity and understanding to the politics of the Empire State. This third edition of the leading textbook on New York politics combines historical, legal, statistical, and journalistic sources with the candid perspectives of legislators, lobbyists, and other public officials. Critical updates and new information include an analysis of the rise and fall of Governor Andrew Cuomo, coverage of growing demographic diversity in New York State and its government, and the impact of unified government when the legislature and executive branch are both controlled by the Democratic Party.