This book introduces readers to gas flows and heat transfer in pebble bed reactor cores. It addresses fundamental issues regarding experimental and modeling methods for complex multiphase systems, as well as relevant applications and recent research advances. The numerical methods and experimental measurements/techniques used to solve pebble flows, as well as the content on radiation modeling for high-temperature pebble beds, will be of particular interest. This book is intended for a broad readership, including researchers and practitioners, and is sure to become a key reference resource for students and professionals alike.

Network Function Virtualization (NFV) has recently attracted considerable attention from both research and industrial communities. Numerous papers have been published regarding solving the resource- allocation problems in NFV, from various perspectives, considering different constraints, and adopting a range of techniques. However, it is difficult to get a clear impression of how to understand and classify different kinds of resource allocation problems in NFV and how to design solutions to solve these problems efficiently. This book addresses these concerns by offering a comprehensive overview and explanation of different resource allocation problems in NFV and presenting efficient solutions to solve them. It covers resource allocation problems in NFV, including an introduction to NFV and QoS parameters modelling as well as related problem definition, formulation and the respective state-of-the-art algorithms. This book allows readers to gain a comprehensive understanding of and deep insights into the resource allocation problems in NFV. It does so by exploring (1) the working principle and architecture of NFV, (2) how to model the Quality of Service (QoS) parameters in NFV services, (3) definition, formulation and analysis of different kinds of resource allocation problems in various NFV scenarios, (4) solutions for solving the resource allocation problem in NFV, and (5) possible future work in the respective area.

Land reform has been the most challenging social issue for China, which is in transition from an agricultural society to an industrialized country. As the initiator of "common-ownership trust", the author introduces trust theory into China's land reform, trying to settle the issues of land right verification and land circulation. Firstly, this book reflects on land circulation and common ownership theoretically. Then it reviews China's rural land system transition in history as well as its current circumstances and problems. Based on theoretical thinking and practice, this book proposes land trust and expounds on its nature and content. Lastly, it interprets the "cloud trust + land trust" model which combines science, technology, knowledge and capital with land to realize the intensive and overall development of land. This book attempts to solve China's land problems with financial tools, which provide significant implications for not only land reform but also trust theory study.

Land reform has been the most challenging social issue for China, which is in transition from an agricultural society to an industrialized country. As the initiator of "common-ownership trust", the author introduces trust theory into China's land reform, trying to settle the issues of land right verification and land circulation. Firstly, this book reflects on land circulation and common ownership theoretically. Then it reviews China's rural land system transition in history as well as its current circumstances and problems. Based on theoretical thinking and practice, this book proposes land trust and expounds on its nature and content. Lastly, it interprets the "cloud trust + land trust" model which combines science, technology, knowledge and capital with land to realize the intensive and overall development of land. This book attempts to solve China's land problems with financial tools, which provide significant implications for not only land reform but also trust theory study.