The induction machine handbook - IEEE Xplore

problems in the physics and chemistry of interfaces. Electric charges at the interface of materials can occur due to the nature of the materials or from an external electric field. The former can occur, for example, when particles, suspended in transformer oil, become charged and interfere with the normal transformer operation. Charges can also form naturally at a material interface, when materials are combined or mixed, resulting in an interfacial electric charge. This book is broken down into five sections. It has a combination of both theory and experimental methods, including many applications. The first part covers the general aspects of electrokinetics, including many measurement techniques. In particular, the techniques that would interest our readers include dielectric and electro-rotational spectroscopy in ac fields, and electric birefringence spectroscopy (Kerr effect). There is also information that directly applies to chemical double-layer capacitors. The next two parts mainly focus on membranes and polymers for biological interests including sections on polymer coated particles and surface charges on polystyrene particles. The fourth section details inorganic particles, covering mineral and clay particles. The final section details gas/liquid and liquid/liquid interfaces. These applications could be applied to gas bubble formation in dielectric liquids. Researchers working in the fields of interfacial science, including those working on dielectric spectroscopy, birefringence, and chemical doublelayer capacitors would find this an excellent text that covers a wide range of practical techniques and theory.

The Induction Machine Handbook I. Boldea and S.A. Nasar CRC Press LLC 2000 Corporate Blvd. NW Boca Raton, FL 33431 Phone +1 800 272 7737 Fax +1 800 374 3401 http://www.crcpress.com January/February 2003 — Vol. 19, No. 1

ISBN# 0-8493-0004-5 950 pp. – $149.95 Hardback, 2002 Developments in power electronics and digital control have made the induction motor (IM) the choice for variable speed drives in most industries. For many applications, the quickness, robustness, and precision characteristics of the induction motor make it the perfect choice over all other motors. Along with many developments in power electronics and controls to allow the IM to be used in a variety of applications, there have also been developments in IM design. There are many applications that require speed and precision control in a variable speed drive that, with new IM drives and electronic control, has only recently been possible. The trend is toward super-highspeed variable drives, up to 60,000 rpm, at power levels in the tens of kW. Until this book, there has been no recent, comprehensive text dedicated to induction machine (IM) design, analysis, and application, especially with regard to the increasingly popular variable speed drives. With 28 chapters, loads of references, drawings, graphs, this text covers a wide range of topics on IM applications, fundamentals, materials (including insulation), windings, circuit analysis, transients, control methods, harmonics, skin and saturation effects, losses, and thermal modeling. In addition, there are chapters on IM design (100 kW), variable speed, single and 3-phase generators, linear motors, super-high- frequency, and test data. Many numerical examples, design examples, and test data waveforms make this book more interesting and easier to understand. What sets this book apart from a traditional theory textbook is that, in addition to theoretical calculations and equations, the authors make extensive use of modern industrial analysis tools, such as finite element programs and numerical simulations—on actual devices, to best illustrate the design and analysis of

IMs. There are also details on modern testing methods for electronically controlled IMs. Engineers/designers or students, new or experienced, of IMs will find this book an excellent resource for all aspects on IMs. In addition, those involved with applications of IM, especially in variable-speed drives will find this an excellent resource.

NMR Spectra of Polymers and Polymer Additives A.J. Brandolini and D.D. Hills Marcel Dekker, Inc. 270 Madison Ave. New York, NY 10016 Phone +1 800 228 1160 Fax +1 212 685 4540 http://www.dekker.com ISBN 0-8247-8970-9 634 pp. - $195.00 (Hardback), 2000 High-resolution nuclear magnetic resonance (NMR) spectroscopy is one of the most useful tools for identifying and characterizing molecular structure, especially for polymer identification. Interpreting NMR spectra becomes a challenge, especially when evaluating many modern commercial polymers, which frequently consist of polymer blends and additives. This book not only provides a compilation of spectra for over 300 polymer and polymer additives, but also provides practical information regarding the acquisition and interpretation of the data. The spectra contained in this book were chosen from the more frequently encountered, commercially significant materials, with the notable exception of insoluble thermoset materials. The polymers are grouped according to the chemical backbone structure (aliphatic hydrocarbons, unsaturated hydrocarbons, ethers, esters and amides, and others). Each chapter contains information on sample preparation, characteristic spectral features, and typical analyses. There are two pages for each material, containing the spectra, molecular structure, peak assignments, experimental parameters, references, and practical 49