Bøger af Fei Dai

This book systematically explains the fundamentals of system-level electromagnetic compatibility and introduces the basic concept of system-level electromagnetic compatibility quantification design. The topics covered include the critical technologies in the top-down quantification design of electromagnetic compatibility, quantification design of system-level electromagnetic compatibility, evaluation methods and application examples, quality control and application examples of electromagnetic compatibility development process, and real-world engineering example analysis of electromagnetic compatibility.The book proposes a top-down system-level electromagnetic compatibility quantification design method and is the first book to describe in detail how to quantitatively evaluate and predict system-level electromagnetic compatibility performance. It includes abundant engineering examples and experimental data demonstrating the usage and results of the top-down quantification design methods of system-level electromagnetic compatibility.It enables readers to obtain a thorough understanding of the theory and methods of system-level electromagnetic compatibility quantification design as well as the methodologies for engineering practice.

On construction sites, the digital photos have been routinely applied for project management, such as documentation of daily activities and provision of visual aids for better communication. With the advance of the surveying technique of close-range photogrammetry, information from the two-dimensional (2D) digital images can be extracted to construct three-dimensional (3D) knowledge, which is of great assistance for site engineers, for example, to sketch profiles of site elements, measure structure geometric dimensions, and track progress states of an ongoing product. For the benefit of construction professionals who are interested in utilizing or developing close-range photogrammetry, this book introduces the fundamentals of this technique and applies it to analytically 1) model 3D construction site elements by point and shoot photography, 2) measure the geometric dimensions of building products, and 3) augment site photos with 3D graphics of underground facilities for better quality investigation and progress visualization of infrastructure construction.