ISSN:0010-7514    

DOI:10.1080/00107517908210926

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

摘要:

‘In spite of the strength of gravitational forces between celestial bodies, gravitational capture is not a simple concept. The principles of conservation of linear momentum, and of conservation of angular momentum, always impose severe constraints, while conservation of energy and the vital distinction between dissipative and non-dissipative systems allows one to rule out capture in a wide variety of cases. In complex systems, especially those without dissipation, long dwell time is a more significant concept than permanent capture’.

ISSN:0010-7514    

DOI:10.1080/00107517908210927

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

摘要:

The gravity wave theory has been very successful in the interpretation of various upper atmospheric phenomena. This article offers a review of the present state of knowledge about the various sources of atmospheric gravity waves, particularly those which give rise to different types of travelling ionospheric disturbance. Some specific case studies are discussed.

ISSN:0010-7514    

DOI:10.1080/00107517908210928

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

摘要:

The mobility and self-diffusion of polymer molecules in concentrated systems or in the molten bulk state is largely controlled by entanglements between the molecules. These entanglements are a result of the chain-like nature of the molecules and of their extended, coil-like configuration. The conformation and mobility of polymer molecules in dilute solution—which are relatively well understood—are discussed; this leads to a consideration of self-diffusion in the more concentrated states and in the bulk polymer melt, and several special properties of polymers which are controlled and modified by the molecular self-diffusion are examined.

ISSN:0010-7514    

DOI:10.1080/00107517908210929

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

摘要:

Very large and fragile atoms may be produced by exciting normal atoms with light or by collisions with other atomic particles. Atoms as large as 10−6m are now routinely produced in the laboratory and their properties studied. In this review some of the simpler experimental methods available for the production and detection of such atoms are described including tunable dye laser-excitation and field ionization. A few recent experiments which illustrate the collision properties and the effects of electric and magnetic fields are also described. The relevance of highly excited atoms in other areas of research including radioastronomy and isotope separation are discussed.

ISSN:0010-7514    

DOI:10.1080/00107517908210930

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107517908210931

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107517908210932

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107517908210933

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107517908210934

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

摘要:

Relativistic Theories of Materials.By A. Bressan. (Springer-Verlag, 1978.) [Pp. xiv + 290.] DM 98; $49·00. Level: Research/postgraduate.

ISSN:0010-7514    

DOI:10.1080/00107517908210935

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor