摘要:

Since 1913, Bohr's planetary model for atomic structure has been predominant, but recent analyses suggest that collective quantization of atomic valence shells containing two electrons may be more valid. The history and evidence for these two extreme paradigms are presented and some of the potentially observable consequences are discussed briefly.

ISSN:0010-7514    

DOI:10.1080/00107518908222587

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

This paper provides an introduction to methods for stabilizing continuous-wave single-mode lasers and discusses the fundamental limits on the maximum stability achievable. Both passive and active methods are described, the latter being treated by separating the problems of error discrimination and error correction. Means of evaluating stability are briefly reviewed and examples of applications of stabilized lasers are presented.

ISSN:0010-7514    

DOI:10.1080/00107518908222588

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

The historical development of neutron sources for research is outlined, with emphasis on the dependence of future progress on the successful exploitation of the new breed of pulsed sources. The principles and instrumentation of scattering experiments at pulsed sources using the time-of-flight method are described in detail. Examples of novel scientific results, recently obtained at the ISIS source, are presented to illustrate the power and potential of pulsed neutron scattering.

ISSN:0010-7514    

DOI:10.1080/00107518908222589

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

The collapse of the core of a massive star and the subsequent birth of a neutron star in a supernova explosion are discussed, and a model of the supernova mechanism is developed. The basic theory is then compared with the particular case of SN 1987 A, whose emitted neutrinos permitted the first direct test of the model.

ISSN:0010-7514    

DOI:10.1080/00107518908222590

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

A review ofGalactic Dynamics. By James Binney and Scott Tremaine. (Princeton University Press, 1987.) [Pp. xv + 733.] £47·00, hardback; £15·70, paperback. ISBN 0 691 08445 9 paperback.

ISSN:0010-7514    

DOI:10.1080/00107518908222591

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

Clouds in a Glass of Beer. By Craig F. Bohren. 1987, £9.95, pp. xv + 195. John Wiley, ISBN 0471 624829. Scope: Textbook. Level: General reader.

ISSN:0010-7514    

DOI:10.1080/00107518908222592

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107518908222593

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor