Controlling the level of noise in electrical motors is critical to overall system performance. However, predicting noise of an electrical motor is more difficult and less accurate than for other characteristics such as torque-speed. Recent advances have produced powerful computational methods for noise prediction, and Noise of Polyphase Electric Motors is the first book to collect these advances in a single source. It is also the first to include noise prediction for permanent magnet (PM) synchronous motors.
Complete coverage of all aspects of electromagnetic, structural, and...

Complex electronic circuits and devices are flooding applications in nearly every facet of commercial and industrial activity, from automated equipment to all types of consumer products. Proper selection of materials is crucial to meet the end-use requirements of flexible and rigid printed wiring boards. While there are many useful books and articles on the fabrication of printed circuit boards, Materials for Rigid and Flexible Printed Wiring Boards is the first book to detail the properties of the materials used and how they are made.
The authors present important manufacturing...

This text examines aspects of the Finite Element Method (FEM) for electromagnetic analysis of low-frequency electrical devices. It offers examples, including torque, vibration and iron loss calculation; coupling of the FEM with mechanical equations, circuits, converters, and thermal effects.

This reference/text reveals all key components of rectification, inversion, cycloconversion, and conversion circuits - describing switching, voltage and current relationships, and converter properties, operation, control, and performance as utilized in most practical applications. Authored jointly by a veteran scholar and an accomplished researcher in the field, Power Converter Circuits highlights methods grounded in classical mathematics and includes an abundance of worked numerical examples.

This detailed reference provides guidelines for the selection and utilization of electric motors for improved reliability, performance, energy-efficiency, and life-cycle cost-reflecting the state-of-the-science in the field, as well as recent developments in control electronics, the economics of energy-efficient motors and systems, and advanced power electronic drivers.

The research on gaseous electronics reaches back more than 100 years. With the growing importance of gas lasers in so many research and industrial applications as well as power systems generating, transmitting, and distributing huge blocks of electrical power, the body of literature on cross sections, drift and diffusion, and ionization phenomena continues to bloom. Searching through this vast expanse of data is a daunting and time-consuming task. With this in mind, eminent researcher Gorur Govinda Raju presents an authoritative survey of the ballooning literature on gaseous electrical...

The electric relay is one of the most frequently used devices in modern technological systems, yet broad information is difficult to locate. There are so many types that most engineers are familiar with only a limited number of relays applicable to very specific devices. This book contains a complete description of electrical relays, their principles of operation, and applications for all basic types. It includes the historical background for various types and discusses the issues of design and the operation principles of relay components for complicated types of relays. The author uses clear...

< P> Various factors affect the performance of electrical contacts, including tribological, mechanical, electrical, and materials aspects. Although these behaviors have been studied for many years, they are not widely used or understood in practice. Combining approaches used across the globe, Electrical Contacts: Fundamentals, Applications, and Technology integrates advances in research and development in the tribological, material, and analytical aspects of electrical contacts with new data on electrical current transfer at the micro- and nanoscales. Taking an application-oriented...

A mobile agent system could be attacked by malicious agents, platforms and third parties. Mobile agents simply offer greater opportunities for abuse and misuse, which broadens the scale of threats significantly. In addition, since mobile agents have some unique characteristics such as their mobility, security problems have become more complicated in these systems. These security problems have become a bottleneck in the development and maintenance of mobile agent systems, especially in security sensitive applications such as electronic commerce. This book introduces the concept and structure...

This book covers neural networks with special emphasis on advanced learning methodologies and applications. It includes practical issues of weight initializations, stalling of learning, and escape from a local minima, which have not been covered by many existing books in this area. Additionally, the book highlights the important feature selection problem, which baffles many neural networks practitioners because of the difficulties handling large datasets. It also contains several interesting IT, engineering and bioinformatics applications.