Elsevier inc mai 2014 (6 risultati)

Buch. Condizione: Neu. Neuware - Power System Small Signal Stability Analysis and Control presents a detailed analysis of the problem of severe outages due to the sustained growth of small signal oscillations in modern interconnected power systems. The ever-expanding nature of power systems and the rapid upgrade to smart grid technologies call for the implementation of robust and optimal controls. Power systems that are forced to operate close to their stability limit have resulted in the use of control devices by utility companies to improve the performance of the transmission system against commonly occurring power system disturbances. This book demonstrates how the application of power system damping controllers such as Power System Stabilizers (PSSs) and Flexible Alternating Current Transmission System (FACTS) controllers-namely Static Var Compensator (SVC) and Thyristor Controlled Series Compensator (TCSC)-can guard against system disruptions. Power System Small Signal Stability Analysis and Control examines the signal stability problem, providing an overview and analysis of the concepts and of the controllers used to mitigate it. Detailed mathematical derivations, illustrated case studies, the application of soft computation techniques, designs of robust controllers, and end-of-chapter exercises make it a useful resource to researchers, practicing engineers, and post-graduates in electrical engineering.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The five-second test is one of the most convenient rapid UX testing methods available, although its value can be compromised by ignoring the restrictions of the method. The Five-Second Rules uses detailed examples from a collection of more than 300 tests to describe the strengths and weaknesses of this rapid testing method. Readers will learn about the 'five-second rules' for getting useful data, and will explore what types of design issues can be resolved by using the method. A five-second test (also known as 'timeout test' and 'exposure test') involves displaying a visual or informational design for five seconds, removing it from view, then asking what aspects were recalled most easily or vividly. The goal is to understand what stands out most about a design or product, and the impact on the viewer's perception of it. 118 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -High Acid Crudes quickly gets the refinery manager and all other relative personnel up to date on this particular type of feedstock by providing an overview and relevant details of the identification of high acid crudes and their influence on the refinery's process units, especially regarding corrosion potential. Covering the types, effects on the various refining units, and proper acid stripping techniques, High Acid Crudes effectively trains refinery personnel with a quick reference guide for day-to-day use in today's refineries. Due to their discounted value but potential for higher production rates, refineries are accepting more of high acidic crude feedstocks, otherwise referred to as 'opportunity? or 'challenging? crude oils. Refining of these resources is still increasing due to high oil prices, with China dominating this market and doubling their production of high acid crudes by 2015. Processing these resources can significantly increase any refinery's productivity, but knowledge and proper training for the refinery manager and crude supplier is key to reducing the risk that is commonly associated with high acid feedstocks, while still maintaining clean production standards. 216 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Dogs have become the subject of increasing scientific study over the past two decades, chiefly due to their development of specialized social skills, seemingly a result of selection pressures during domestication to help them adapt to the human environment. The Social Dog: Behaviour and Cognition includes chapters from leading researchers in the fields of social cognition and behavior, vocalization, evolution, and more, focusing on topics including dog-dog and dog-human interaction, bonding with humans, social behavior and learning, and more. Dogs are being studied in comparative cognitive sciences as well as genetics, ethology, and many more areas. As the number of published studies increases, this book aims to give the reader an overview of the state of the art on dog research, with an emphasis on social behavior and socio-cognitive skills. It represents a valuable resource for students, veterinarians, dog specialists, or anyone who wants deeper knowledge of his or her canine companion. 418 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Freeze-drying is an important preservation technique for heat-sensitive pharmaceuticals and foods. Products are first frozen, then dried in a vacuum at low temperature by sublimation and desorption, rather than by the application of heat. The resulting items can be stored at room temperature for long periods. This informative text addresses both principles and practice in this area.The first chapter introduces freeze-drying. The authors then review the fundamentals of the technique, heat-mass transfer analyses, modelling of the drying process and the equipment employed. Further chapters focus on freeze-drying of food, freeze-drying of pharmaceuticals and the protective agents and additives applied. The final chapter covers the important subjects of disinfection, sterilization and process validation.Freeze-drying of pharmaceutical and food products is an essential reference for food, pharmaceutical and refrigeration engineers and scientists with an interest in preservation techniques. It will also be of use to students in these fields. 274 pp. Englisch. …

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Producing products of reliable quality is vitally important to the food and beverage industry. In particular, companies often fail to ensure that the sensory quality of their products remains consistent, leading to the sale of goods which fail to meet the desired specifications or are rejected by the consumer. This book is a practical guide for all those tasked with using sensory analysis for quality control (QC) of food and beverages. Chapters in part one cover the key aspects to consider when designing a sensory QC program. The second part of the book focuses on methods for sensory QC and statistical data analysis. Establishing product sensory specifications and combining instrumental and sensory methods are also covered. The final part of the book reviews the use of sensory QC programs in the food and beverage industry. Chapters on sensory QC for taint prevention and the application of sensory techniques for shelf-life assessment are followed by contributions reviewing sensory QC programs for different products, including ready meals, wine and fish. A chapter on sensory QC of products such as textiles, cosmetics and cars completes the volume. Sensory analysis for food and beverage quality control is an essential reference for anyone setting up or operating a sensory QC program, or researching sensory QC. 400 pp. Englisch.…