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Long trusted as the most comprehensive, up-to-date and user-friendly grammar available, HAMMER'S GERMAN GRAMMAR AND USAGE provides you with a complete guide to German as it is written and spoken today. This new edition includes: -concise descriptions of the main grammatical phenomena of German and their use -examples of grammar taken from contemporary German, helping you to understand the underlying grammatical principles more quickly -invaluable guidance on pronuciation and the German accent -discussion of new words from English roots such as 'zertweeten' ('to tweet'), helping you to communicate in German as used by Germans today -clarification on the spelling reform and current spellings of German, thus increasing your confidence while writing and reading in German. Praised for its clear layout and lucid explanations, this new edition distinguishes the most common forms of usage, both formal and informal, and offers you a combination of reference grammar and manual of current usage that you will find invaluable, whether a student or a teacher, at intermediate or advanced level.
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Water Hammer Simulations is a comprehensive guide to modelling transients in closed pipes. The models presented range from those used for the first studies into the field to the most advanced available today. All of the models are described in detail, starting from the simplest to the most complex. Most of the presented models have been implemented in computer codes, which are provided with the book as both executable files and the sources. The use of these programs is explained in the book where they are applied in a number of examples; the results are critically commented, to allow the reader to be able to build an appropriate model for their own use. Suggestions on the most appropriate model to be built and used are provided throughout the book. Laboratory tests and real case applications are also presented and discussed, together with the still unresolved problems in the field. The focus of researcher’s efforts we will be on these issues in the coming years. The book is suitable for professionals working in the field as well as scholars and undergraduate students.