Revised and updated throughout, the second edition of Energy-Efficient Electric Motors provides guidelines for picking and using electric motors on an energy conservation and life-cycle cost basis - emphasizing both single- and three-phase motors in the 1- to 200-hp range that offer maximum opportunities for energy savings.;Maintaining the features of the first edition, this concise resource: explains current improvements in electric motor capabilities and recently adopted NEMA energy-efficient motor standards; contains a new section about the power factor with nonlinear loads; covers the performance of polyphase induction motors supplied by adjustable frequency power supplies for several types of loads, presents information on numerous kinds of power semiconductors used in variable-frequency power supply systems; provides expanded coverage comparing various types of adjustable speed drives when applied to constant torque and variable torque loads; and contains a new summary checklist criteria for selecting induction motors for adjustable frequency drive systems.;Generously illustrated with nearly 200 figures and tables, the second edition of Energy-Efficient Electric Motors is timely reading for electrical, electronics, mechanical, consulting, specifying, and plant engineers; plant and purchasing managers; original equipment, heating, ventilating, and air-conditioning manufacturers; and continuing-education courses in these disciplines.
Jazz is a music born in the United States and formed by a combination of influences. In its infancy, jazz was a melting pot of military brass bands, work songs and field hollers of the United States slaves during the 19th century, European harmonies and forms, and the rhythms of Africa and the Caribbean. Later, the blues and the influence of Spanish and French Creoles with European classical training nudged jazz further along in its development. As it moved through the swing era of the 1930s, bebop of the 1940s, and cool jazz of the 1950s, jazz continued to serve as a reflection of societal changes. During the turbulent 1960s, freedom and unrest were expressed through Free Jazz and the Avant Garde. Popular and world music have been incorporated and continue to expand the impact and reach of jazz. Today, jazz is truly an international art form. This second edition of Historical Dictionary of Jazz contains a chronology, an introduction, and an extensive bibliography. The dictionary section has over 1,500 cross-referenced entries on musicians, styles of jazz, instruments, recording labels, bands and band leaders, and more. This book is an excellent resource for students, researchers, and anyone wanting to know more about Jazz.
Originally published in 1965, Contraception received unanimous acclaim from all quarters as the first thorough, scholarly, objective analysis of Catholic doctrine on birth control. More than ever this subject is of acute concern to a world facing serious population problems, and the author has written an important new appendix examining the development of and debates over the doctrine in the past twenty years.
This volume examines the transmission of biblical pseudepigraphic literature and motifs from their largely Jewish cultural contexts in Palestine to developing gnostic milieux of Syria and Mesopotamia, particularly that one lying behind the birth and growth of Manichaeism. It surveys biblical pseudepigraphic literary activity in the late antique Near East, devoting special attention to revelatory works attributed to the five biblical forefathers who are cited in the Cologne Mani Codex: Adam, Seth, Enosh, Shem, and Enoch. The author provides a philological, literary, and religio-historical analysis of each of the five pseudepigraphic citations contained in the Codex, and offers hypotheses regarding the original provenance of each citation and the means by which these traditions have been adapted to their present context. This study is an important contribution to the scholarly reassessment of the roles played by Second Temple Judaism, Jewish Christian sectarianism, and classical gnosis in the formulation and development of Syro-Mesopotamian religious currents.
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