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1. |
Record Nr. |
UNINA9910450682903321 |
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Autore |
Jenkins Keith <1943, > |
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Titolo |
Refiguring history : new thoughts on an old discipline / / Keith Jenkins |
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Pubbl/distr/stampa |
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London ; ; New York : , : Routledge, , 2003 |
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ISBN |
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1-134-54303-4 |
1-280-10806-1 |
0-203-98715-2 |
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Descrizione fisica |
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1 online resource (88 p.) |
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Classificazione |
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Disciplina |
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Soggetti |
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History - Philosophy |
Historiography |
Historicism |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references (p. [71]-74) and index. |
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Nota di contenuto |
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Book Cover; Title; Copyright; Contents; Acknowledgements; Introduction; 1 Opening Times; 2 Last orders; 3 Beginning again; Notes; Index |
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Sommario/riassunto |
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In this engaging sequel to Rethinking History, Keith Jenkins argues for a re-figuration of historical study. At the core of his survey lies the realization that objective and disinterested histories as well as historical 'truth' are unachievable. The past and questions about the nature of history remain interminably open to new and disobedient approaches.Jenkins reassesses conventional history in a bold fashion. His committed and radical study presents new ways of 'thinking history', a new methodology and philosophy and their impact on historical practice.This volume is |
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2. |
Record Nr. |
UNINA9910346767503321 |
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Autore |
Malygin Anton |
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Titolo |
Design and Experimental Investigation of a Second Harmonic 20 kW Class 28 GHz Gyrotron for Evaluation of New Emitter Technologies |
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Pubbl/distr/stampa |
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KIT Scientific Publishing, 2016 |
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ISBN |
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Descrizione fisica |
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1 online resource (XI, 132 p. p.) |
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Collana |
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Karlsruher Forschungsberichte aus dem Institut für Hochleistungsimpuls- und Mikrowellentechnik |
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Soggetti |
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Technology: general issues |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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Gyrotrons are high-power mm-wave tubes. Here, the design, construction and experimental investigation of a 20 kW, 28 GHz gyrotron (2nd harmonic) are reported. This tube was designed to evaluate new emitters for future highly efficient and reliable fusion gyrotrons and for material processing applications. Following experimental results have been achieved in CW operation: 22.5 kW output power at 23.4 kV electron beam voltage and 2.23 A beam current with the world record efficiency of 43 %. |
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