During the last 20 years interest in high-resolution x-ray diffractometry and reflectivity has grown as a result of the development of the semiconductor industry and the increasing interest in material research of thin layers of magnetic, organic, and other materials. For example, optoelectronics requires a subsequent epitaxy of thin layers of different semiconductor materials. Here, the individuallayer thicknesses are scaled down to a few atomic layers in order to exploit quantum effects. For reasons of electronic and optical confinement, these thin layers are embedded within much thicker cladding layers or stacks of multilayers of slightly different chemical composition. It is evident that the interface quality of those quantum weHs is quite important for the function of devices. Thin metallic layers often show magnetic properties which do not ap pear for thick layers or in bulk material. The investigation of the mutual interaction of magnetic and non-magnetic layers leads to the discovery of colossal magnetoresistance, for example. This property is strongly related to the thickness and interface roughness of covered layers.
During the last 20 years interest in high-resolution x-ray diffractometry and reflectivity has grown as a result of the development of the semiconductor industry and the increasing interest in material research of thin layers of magnetic, organic, and other materials. For example, optoelectronics requires a subsequent epitaxy of thin layers of different semiconductor materials. Here, the individuallayer thicknesses are scaled down to a few atomic layers in order to exploit quantum effects. For reasons of electronic and optical confinement, these thin layers are embedded within much thicker cladding layers or stacks of multilayers of slightly different chemical composition. It is evident that the interface quality of those quantum weHs is quite important for the function of devices. Thin metallic layers often show magnetic properties which do not ap pear for thick layers or in bulk material. The investigation of the mutual interaction of magnetic and non-magnetic layers leads to the discovery of colossal magnetoresistance, for example. This property is strongly related to the thickness and interface roughness of covered layers.
This book provides a systematic survey of classical and recent results on hyperbolic cross approximation. Motivated by numerous applications, the last two decades have seen great success in studying multivariate approximation. Multivariate problems have proven to be considerably more difficult than their univariate counterparts, and recent findings have established that multivariate mixed smoothness classes play a fundamental role in high-dimensional approximation. The book presents essential findings on and discussions of linear and nonlinear approximations of the mixed smoothness classes. Many of the important open problems explored here will provide both students and professionals with inspirations for further research.
Barley: Chemistry and Technology, Second Edition is an important resource for any cereal chemist, food scientist, or crop scientist who needs to understand the development, structure, composition, and end-use properties of the barley grain for cultivation, trade, and utilization. Editors Peter R. Shewry and Steven E. Ullrich bring together a wide range of international authorities on barley to create this truly unique, encyclopedic reference work that covers the massive increase in barley knowledge over the past 20 years, since the first edition of this book was published. Barley: Chemistry and Technology, Second Edition offers the latest coverage of barley’s applications in milling, breeding, and production for food, feed, malting, brewing, distilling, and biofuels. It delivers a complete update of the latest knowledge of barley’s many components, from the genetic and molecular level to its many constituents, such as proteins, carbohydrates, arabinoxylans, minerals, lipids, terpenoids, phenolics, and vitamins. This important book also includes chapters on barley’s plant and grain development from both the physiological and genetic perspectives, making it an important resource not only for cereal and food scientists but also for crop scientists involved in breeding, agronomy, and related plant sciences New coverage includes: Updated, comprehensive knowledge on barley’s components, including proteins, carbohydrates, arabinoxylans, and bioactive effects New end-use ideas for barley as an ingredient in food products Nonfood industrial applications for barley, including biofuels A new chapter on barley’s health benefits Molecular breeding for malting quality
This book gives insight into the mechanism of the immune system and the influence of the environment on earth. Further, the book explains the changes that occur in our immune system in the absence of gravity and their fundamental consequences. Several limiting factors for human health and performance in microgravity have been clearly identified as an unacceptable risk for long-term and interplanetary flights. Serious concerns arose whether spaceflight-associated immune system dysfunction ultimately precludes the expansion of human presence beyond Earth's orbit. The immune system has undergone many evolutionary steps to cope with a new and changing environment, but `space` has not been evolutionary experienced before. Through endocrine orchestration of cell functions, cell to cell communications and intracellular mechanisms the human body and his immune system have an enormous capacity to adapt and react to altered environmental conditions. Thus, the special sensitivity to altered gravity renders the immune system an ideal biological model system to understand if and how gravity on Earth is required for the normal function of cells and cellular networks. It is one of the most fundamental challenges to find out, if our organism and our cellular machinery are able to live and to adequately perform without the gravity field of Earth. The book is written for immunologists and researchers in human physiology under normal and stressfull conditions.
Thank you for visiting our website. Would you like to provide feedback on how we could improve your experience?
This site does not use any third party cookies with one exception — it uses cookies from Google to deliver its services and to analyze traffic.Learn More.