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A ten year old and his family embark on a heroic escape from the former East Bloc Communist country of Czechoslovakia to seek a new life in the West free of oppression. Faced with unforeseen perils, heavily armored borders, three separate cultural changes, and never knowing what the next day brings, a family of four leave their entire lives behind and thrust themselves into situations with potentially devastating outcomes. Join the Rehacek family as they struggle during a journey across multiple border crossings between Czechoslovakia, Hungary, Yugoslavia, Austria, and Germany as they seek freedom and prosperity. Just imagine yourself standing in front of an open field covered with tall barb...
In recent years, there has been a dramatic increase in grain-based fuel ethanol production in North America and around the world. Whether such production will result in a net energy gain or whether this is sustainable in the long term is under debate, but undoubtedly millions of tons of non-fermented residues are now produced annually for global tr
What Is Aerogel ‘Aerogel’ is a broad term used to talk about an extraordinary group of materials that have been used since the 1960s in space travel but are now finding uses across a whole range of industries. ‘Aerogel’ is not a specific mineral or material with a set chemical formula-rather, the term is used to encompass all materials with a specific geometrical structure. This structure is an extremely porous, solid foam, with high connectivity between branched structures of a few nanometres across. Though aerogel is technically a foam, it can take many different shapes and forms. The majority of aerogel is composed of silica, but carbon, iron oxide, organic polymers, semiconductor...
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This book is about policies in the most important transition countries towards a take-off in networks and services development, especially new ones and about other development factors and transitional constraints making the take-off more or less successful.
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"This fully updated new edition provides a comprehensive guide to enzyme-supplemented animal feeds. It explores using enzymes in fish and shrimp diets, new understanding of how phytases function, and NSPase research. It also includes new chapters on enzyme combinations, antibiotic free diets and measuring response in feed trials"--