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Asset Management for Infrastructure Systems - Gerd Balzer - Bog - Springer Nature Switzerland AG - Plusbog.dk

Asset Management for Infrastructure Systems - Gerd Balzer - Bog - Springer Nature Switzerland AG - Plusbog.dk

This book offers a broad overview of asset management processes for different utilities, with a special emphasis on energy and water. It provides readers with important practical considerations concerning the development of new competitive structures and procedures for guaranteeing a sufficient supply of energy and water in a regulated environment, using clearly defined technical and economic cornerstones. On the one hand, asset owners expect suitable interests from their investment and business growth; on the other hand, regulators focus more on a reliable and cost-effective customer supply. This book shows how to take into consideration these different perspectives in the process of designing new structures, and how to guarantee organizational transparency. It describes essential principles and boundary conditions for ensuring the optimal use of resources in a network, covering issues relating to equipment service life, IT landscape and computer programs, operational costs management, and investment and maintenance strategies, highlighting their impact on the organization of the company. This thoroughly revised and updated second edition, includes extensive information about IEC standard (IEC/TS 63060), and cover operation research methods focusing on the optimization of the maintenance tasks. Furthermore, a discussion on the political environment has been included, with a special emphasis on the European situation and the "Green Deal": specifically, some measures to cope with the topic of energy transition are presented. Last, but not least, a brand-new chapter on condition assessment has been included.

DKK 901.00
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Combined Vibrator-Slot Structures: Theory and Applications - Sergey L. Berdnik - Bog - Springer Nature Switzerland AG - Plusbog.dk

Combined Vibrator-Slot Structures: Theory and Applications - Sergey L. Berdnik - Bog - Springer Nature Switzerland AG - Plusbog.dk

The book presents solutions to a complex of internal and external problems of electromagnetics associated with the development of theory, construction of mathematical models and the development of rigorous methods for calculating the electrodynamic characteristics of combined vibrator-slot structures. The solutions of problems for determining the characteristics of impedance vibrator and slot radiators with arbitrary geometric and electrophysical parameters presented in the monograph were obtained within the framework of the unified methodological approach to construct asymptotic solutions of integral equations on currents and their systems. This approach made it possible to study a number of new combined vibrator-slot structures. The research results reveal the possibilities of using such structures as basic elements in the creation of modern antenna-waveguide devices operating in the ranges from meter to millimeter wavelengths, with new technical characteristics and functional purpose. The book is intended for senior and postgraduate students and researchers working in the fields of radiophysics, radio engineering and antenna-feeder design. The book covers the following topics:• excitation of electromagnetic waves in volumes with coordinate boundaries;• general issues of the theory of thin impedance vibrators and narrow slots in a spatial-frequency representation;• solution of current equations for isolated vibrator and slot scatterers;• combined radiating vibrator-slot structures in rectangular waveguide;• T-junctions of rectangular waveguides with vibrator-slot structures in coupling areas;• waveguide radiation of the combined vibrator-slot structures;• combined vibrator-slot structures located on a perfectly conducting sphere;• combined vibrator-slot Radiators in antenna arrays;• ultrawideband vibrator-slot structures;

DKK 800.00
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Communication Between Honeybees - Jurgen Tautz - Bog - Springer Nature Switzerland AG - Plusbog.dk

Communication Between Honeybees - Jurgen Tautz - Bog - Springer Nature Switzerland AG - Plusbog.dk

Jürgen Tautz, renowned German bee researcher explains how bees communicate. Exciting and surprising new insights on communication between bees. During the history of bee research, scientists have peered deep into the inner life of bee colonies and learned much about the behaviour of these insects. Above all, the bee waggle dance has become a famous and extensively discussed phenomenon. Nevertheless, recent insights reveal that while bees are social insects inside the hive they also communicate with one another outside the hive. In this book, Jürgen Tautz, renowned German bee researcher, provides an entertaining, fresh and enlightened account for lay and professional readers, not only about the fascinating dance language but also about additional remarkable phenomena concerning information exchange between bees. From the author of the bestseller “The Buzz about Bees”. “The Language of Bees” assembles, for the first time, a complete overview of how bees understand one another. Although communication biology research on bees has so far concentrated largely on events within the hive, this book directs attention as well, to how bees communicate in the field outside the hive. The reader learns which steps new bee recruits take to reach the feeder a dancing forager has advertised. The book analyses the status of work on the bee dance published over the last 100 years and orders the essential findings as building blocks into a coherent new concept of how bees find their target. In addition, the historical survey of research on the “Bee Language” explains how several contradictory and incomplete hypotheses can still survive. A fresh point of view on one of the most remarkable behavioural performances in the animal kingdom. Observation from a different viewpoint leads to previously unknown insights. Such new perspectives clearly reveal both how large the gaps in our knowledge still are in relation to the language of bees and in which direction research must take to complete the picture of one of the most impressive behavioural accomplishments in animals. Prof. Dr. Jürgen Tautz is an expert on bees, sociobiologist, animal behaviourist and emeritus professor at the Biozentrum, University of Würzburg. He is a bestseller author and recipient of many awards of excellence for his successful communication of science to a wide public.

DKK 260.00
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