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Author: Richard Curt Kraus
Publisher: Univ of California Press
ISBN: 9780520072855
Category : Art
Languages : en
Pages : 230
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Book Description
Explores the interplay of politics and the art of writing in China today to explain the complex relationship between tradition and modernity in Chinese culture.
Author: Richard Curt Kraus
Publisher: Univ of California Press
ISBN: 9780520072855
Category : Art
Languages : en
Pages : 230
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Book Description
Explores the interplay of politics and the art of writing in China today to explain the complex relationship between tradition and modernity in Chinese culture.
Author: Kerry Segrave
Publisher: McFarland
ISBN: 0786456841
Category : Social Science
Languages : en
Pages : 239
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Book Description
This excursion into American cultural history looks at the toothpaste and toothbrush industries from 1900 to 2008. During these years, America moved from cleaning their teeth mostly with homemade powders to using an enormous array of brands, often applied with an electric toothbrush. From early 20th century products like Forhan's (which "cured" pyorrhea) to the whiteners of the 1920s (which unfortunately also removed tooth enamel), and from paste that eliminated "that clinging film" and to copywriters who "wondered where the yellow went," the history of toothpaste has long been a testament to the power of misleading advertising. Interrupting a steady flow of hyperbole was the one true wonder ingredient--fluoride, which enabled Crest to be for decades America's top-selling brand.
Author:
Publisher:
ISBN:
Category : Electric engineering
Languages : en
Pages : 1412
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Book Description
Author:
Publisher: Delene Kvasnicka
ISBN:
Category :
Languages : en
Pages : 158
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Book Description
Author: Paul G. Slade
Publisher: CRC Press
ISBN: 1351832719
Category : Technology & Engineering
Languages : en
Pages : 1314
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Book Description
Covering the theory, application, and testing of contact materials, Electrical Contacts: Principles and Applications, Second Edition introduces a thorough discussion on making electric contact and contact interface conduction; presents a general outline of, and measurement techniques for, important corrosion mechanisms; considers the results of contact wear when plug-in connections are made and broken; investigates the effect of thin noble metal plating on electronic connections; and relates crucial considerations for making high- and low-power contact joints. It examines contact use in switching devices, including the interruption of AC and DC circuits with currents in the range 10mA to 100kA and circuits up to 1000V, and describes arc formation between open contacts and between opening contacts. Arcing effects on contacts such as erosion, welding, and contamination are also addressed. Containing nearly 3,000 references, tables, equations, figures, drawings, and photographs, the book provides practical examples encompassing everything from electronic circuits to high power circuits, or microamperes to mega amperes. The new edition: Reflects the latest advances in electrical contact science and technology Examines current research on contact corrosion, materials, and switching Includes updates and revisions in each chapter, as well as up-to-date references and new figures and examples throughout Delivers three new chapters on the effects of dust contamination, electronic sensing for switching systems, and contact phenomena for micro-electronic systems (MEMS) applications With contributions from recognized experts in the field, Electrical Contacts: Principles and Applications, Second Edition assists practicing scientists and engineers in the prevention of costly system failures, as well as offers a comprehensive introduction to the subject for technology graduate students, by expanding their knowledge of electrical contact phenomena.
Author: Ion Boldea
Publisher: CRC Press
ISBN: 0849342201
Category : Technology & Engineering
Languages : en
Pages : 541
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Book Description
Electric drives are everywhere, and with the looming promise of electric vehicles and renewable energy, they will become more complex and the demands on their capabilities will continue to increase. To keep up with these trends, students require hands-on knowledge and a keen understanding of the subtleties involved in the operation of modern electric drives. The best-selling first edition of Electric Drives provided such an understanding, and this Second Edition offers the same approach with up-to-date coverage of all major types of electric drives, both constant and variable speed. This book provides a self-contained treatment of low-, medium-, and large-power drives illustrated by numerous application examples, problems, digital simulation results, and test results for both steady state and dynamic operation. This edition features updated material in every chapter, including references; new material on AC brush series motors, capacitor-split inductor motors, single-phase PMSMs and switched reluctance motors, and tooth-wound PMSMs, all with numerical examples; new case studies on AC synchronous and induction motors; and a new chapter on control of electric generators. The companion CD-ROM features the full text, class slides for instructors, and MATLAB® simulations of 10 closed-loop drives, two of which are new to this edition. With a practical, hands-on approach, Electric Drives, Second Edition is the ideal textbook to help students design, simulate, build, and test modern electric drives, from simple to complex.
Author:
Publisher:
ISBN:
Category : Patents
Languages : en
Pages : 2770
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Book Description
Author:
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 1450
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Book Description
Author: Paul Gill
Publisher: CRC Press
ISBN: 1351837257
Category : Technology & Engineering
Languages : en
Pages : 1002
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Book Description
The second edition of a bestseller, this definitive text covers all aspects of testing and maintenance of the equipment found in electrical power systems serving industrial, commercial, utility substations, and generating plants. It addresses practical aspects of routing testing and maintenance and presents both the methodologies and engineering basics needed to carry out these tasks. It is an essential reference for engineers and technicians responsible for the operation, maintenance, and testing of power system equipment. Comprehensive coverage includes dielectric theory, dissolved gas analysis, cable fault locating, ground resistance measurements, and power factor, dissipation factor, DC, breaker, and relay testing methods.
Author: P. C. Sen
Publisher: John Wiley & Sons
ISBN: 111977070X
Category : Electric machinery
Languages : en
Pages : 482
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Book Description
Principles of Electric Machines and Power Electronics, Third Edition combines the traditional areas of electric machinery with the latest in modern control and power electronics. Multi-machine systems, brushless motors, and switched reluctance motors are covered, as well as constant flux and constant current operation of induction motors. Additional material is included on new solid state devices such as Insulated Gate Bipolar Transistors and MOS-Controlled Thyristors.
