This monograph presents a new perspective on the history of general relativity. It outlines the attempts to establish an institutional framework for the promotion of the field during the Cold War. Readers will learn the difficulties that key figures experienced and overcame during this period of global conflict. The author analyzes the subtle interconnections between scientific and political factors. He shows how politics shaped the evolution of general relativity, even though it is a field with no military applications. He also details how different scientists held quite different views about what “political” meant in their efforts to pursue international cooperation. The narrative examines the specific epistemic features of general relativity that helped create the first official, international scientific society. It answers: Why did relativity bring about this unique result? Was it simply the product of specific actions of particular actors having an illuminated view of international relations in the specific context of the Cold War? Or, was there something in the nature of the field that inspired the actors to pioneer new ways of international cooperation? The book will be of interest to historians of modern science, historians of international relations, and historians of institutions. It will also appeal to physicists and interested general readers.
Strong Interactions in Spacelike and Timelike Domains: Dispersive Approach provides the theoretical basis for the description of the strong interactions in the spacelike and timelike domains. The book primarily focuses on the hadronic vacuum polarization function, R-ratio of electron-positron annihilation into hadrons, and the Adler function, which govern a variety of the strong interaction processes at various energy scales. Specifically, the book presents the essentials of the dispersion relations for these functions, recaps their perturbative calculation, and delineates the dispersively improved perturbation theory. The book also elucidates the peculiarities of the continuation of the spacelike perturbative results into the timelike domain, which is indispensable for the studies of electron-positron annihilation into hadrons and the related processes.
The authors provide a comprehensive analysis on the model predictive control of power converters employed in a wide variety of variable-speed wind energy conversion systems (WECS). The contents of this book includes an overview of wind energy system configurations, power converters for variable-speed WECS, digital control techniques, MPC, modeling of power converters and wind generators for MPC design. Other topics include the mapping of continuous-time models to discrete-time models by various exact, approximate, and quasi-exact discretization methods, modeling and control of wind turbine grid-side two-level and multilevel voltage source converters. The authors also focus on the MPC of several power converter configurations for full variable-speed permanent magnet synchronous generator based WECS, squirrel-cage induction generator based WECS, and semi-variable-speed doubly fed induction generator based WECS.
Libraries own many valuable holdings and collections that have great potential to attract public interest. But how do library customers find out about their existence? In most cases, digitizing and placing them on the internet alone is not enough to achieve the desired access numbers. Marketing is then quickly blamed: Too little was invested, the wrong channels were selected or the images were not attractive enough. So, how can the holdings and collections be marketed successfully?
The presentation discusses how marketing is used as a way of thinking in libraries and focuses on content marketing. Selected real-life examples are given to illustrate how content and collections can be promoted and distributed via various online channels. Topics such as storytelling, video and social media will be addressed.
Deborah Kyburz Deborah Kyburz has been working at ETH Library in Zurich since 2013 and has taken continuous training in social media management and content marketing. In addition to her work as a web and digital media manager, she was in charge of the project Multimedia Storytelling, in context of which the content marketing platform Explora was conceived and implemented. After several years in online marketing, Deborah Kyburz is now heading the group Community & Content Marketing at ETH Library.
This first book to critically summarize the latest achievements and emerging applications within this interdisciplinary topic focuses on one of the most important types of detectors for elementary particles and photons: resistive plate chambers (RPCs). In the first part, the outstanding, international team of authors comprehensively describes and presents the features and design of single and double-layer RPCs before covering more advanced multi-layer RPCs. The second part then focuses on the application of RPCs in high energy physics, materials science, medicine and security. Throughout, the experienced authors adopt a didactic approach, with each subject presented in a simple way, increasing in complexity step by step.