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[null,"1.","Record Nr.",null,"UNINA9910465895803321"]
[null,null,"Titolo",null,"Beyond politics as usual : paths to engaging college students in politics / / edited by Ray C. Minor and Ileana Marin"]
[null,null,"Pubbl/distr/stampa",null,"Dayton, Ohio : , : Kettering Foundation Press, , 2017"]
[{"$nulls":4},"©2017"]
[null,null,"ISBN",null,"1-945577-03-7"]
[{"$nulls":4},"1-945577-13-4"]
[null,null,"Descrizione fisica",null,"1 online resource (261 pages)"]
[null,null,"Disciplina",null,"320.4071173"]
[null,null,"Soggetti",null,"Civics - Study and teaching (Higher) - United States"]
[{"$nulls":4},"Education, Higher - Social aspects - United States"]
[{"$nulls":4},"Electronic books."]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Nota di bibliografia","Includes bibliographical references at the end of each chapters."]
[null,"2.","Record Nr.",null,"UNISA996279577603316"]
[null,null,"Titolo",null,"IEEE Std No 54-1955 : IEEE Standard, Test Code, and Recommended Practice for Induction and Dielectric Heating Equipment / / Institute of Electrical and Electronics Engineers"]
[null,null,"Pubbl/distr/stampa",null,"Piscataway, NJ, USA : , : IEEE, , 1955"]
[null,null,"ISBN",null,"1-5044-0389-4"]
[null,null,"Descrizione fisica",null,"1 online resource (24 pages)"]
[null,null,"Disciplina",null,"697.045"]
[null,null,"Soggetti",null,"Electric heating"]
[{"$nulls":4},"Induction heating"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Sommario/riassunto","High-frequency heating equipments divide into two main types: (1) those used for dielectric heating, and(2) those used for induction heating. The induction heating equipments again divide into seven types: (1) commercial power line; (2) rotary generator; (3) mercury-arc-converter; (4) gaseous-tube converter; (5) mercury-hydrogen-spark-gap converter; (6) quenched spark-gap converter; (7) vacuum-tube generator. Dielectric heating equipments in general use a vacuum-tube oscillator as a source of radio-frequency power ranging in frequency from 2 megacycles to hundreds of megacycles. At frequencies above about 200 megacycles,the power is generated by devices other than a conventional vacuum tube, such as a magnetron, Klystron or other microwave device. A dielectric heating generator is normally a high-voltage generator, and application requires high-voltage radio-frequency matching techniques. An induction heating generator is essentially a high-current device operating into very low impedance circuits and sometimes requires transformation in the load circuit to provide the desired heating effect."]