Li Zhen

This book provides a detailed exploration of microwave testing, a Non-Destructive Testing (NDT) method fully recognized by the American Society for Non-Destructive Testing (ASNT) within the past decade. Designed with a special focus on carbon fibre- and glass fibre-reinforced polymer composites, it addresses the needs of industries where these advanced materials are increasingly used, including aerospace, wind energy, electronics, marine, automotive, construction, sports and piping. For NDT practitioners, understanding this new technique is essential. The book offers an in-depth analysis of the electromagnetic properties of composites. In addition, a thorough discussion of the detection principles, advantages and applications of various methods is presented. The methods are not limited to composites and can be readily adapted to other dielectric materials. This handbook is tailored for engineers and researchers specialising in NDT of composites. It also doubles as a reference for graduate students and senior undergraduates studying microwave engineering or composite materials. Elevate your expertise in microwave testing with this essential guide—crafted for professionals, researchers, and educators driving innovation in advanced non-destructive testing and evaluation.

This book meticulously elaborates on the theory of public goods supply, delving into government supply, market (private) supply, voluntary supply, and multi-stakeholder cooperative supply mechanisms. It conducts a comparative analysis of public goods supply and supply mechanism reforms across various countries. Not only does the book establish a model illustrating the relationship between public goods supply and economic growth, but it also examines the historical evolution of China's urban public goods supply mechanism reform, specifically within Chinese cities. Through this work, the book distills the unique characteristics of China's urban public goods provision and uncovers the underlying issues and influential factors in public goods supply. Additionally, it explores the evolutionary trajectory of urban public infrastructure and public services, analyzing supply mechanisms and performance. Ultimately, the book delves into the policies governing urban public goods supply, analyzing the decision-making mechanisms and influencing factors of these policies, and offering insightful suggestions for ensuring the effective supply of urban public goods in China.