IGU commission on marine geography     

Prof. Juan L. de Vivero Suárez 《GeoJournal》1990,22(2):220-220

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Gravitating systems with torsion self-interaction     

C. Sivaram  L. C. Garica de Andrade 《Astrophysics and Space Science》1993,201(1):131-133

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Long-slit spectroscopy of herbig-haro objects     

E. Ortiz  C. Eiroa  L. F. Miranda 《Astrophysics and Space Science》1995,224(1-2):529-530

Long-slit spectra of intermediate spectral and high spatial resolution of new Herbig-Haro objects in AFGL 5142, AFGL 5157 and IRAS 2237+7455 and of the already known GGD17/HH1 were obtained. The results are shown in the form of position-velocity diagrams. Radial velocities and electron densities were measured.  相似文献   

Preface     

Elisabete M. de Gouveia Dal Pino  Anthony L. Peratt  Gustavo A. Medina Tanco  Abraham C. -L. Chian 《Astrophysics and Space Science》1996,242(1-2):1-2

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Evolution of marine morphodynamic modelling: Time for 3- D?     

H. J. de Vriend 《Ocean Dynamics》1997,49(2-3):331-341

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Climatic changes in areas adjacent to the North Atlantic during the last glacial-interglacial transition (14-9 ka BP): A contribution to IGCP-253     

J. John Lowe  B. Ammann  H. H. Birks  S. Bjrck  G. R. Coope  L. Cwynar  J.-L. de Beaulieu  R. J. Mott  D. M. Peteet  M. J. C. Walker 《第四纪科学杂志》1994,9(2):185-198

This paper presents a summary of the evidence for climatic changes during the last glacial-interglacial transition (14-9 ka BP) in land areas adjacent to the North Atlantic. It is a synthesis of the results of the 12 regional summaries compiled by contributors to the North Atlantic Seaboard Programme of IGCP-253 that are published separately in this issue of Journal of Quaternary Science. Eighteen palaeotemperature curves are compared and arranged in three transects, one from southern Europe to Spitsbergen, a second from Ireland to Poland, and the third from southern New England to the Labrador-Baffin Shelf area. Ten maps are presented that summarise the synoptic climatic conditions of the region in 500-year time periods. The purpose of the exercise is to examine the extent to which any emerging patterns support the Ruddiman and Mclntyre model of large-scale shifts in the position of the oceanice Polar Front during the last glacial-interglacial transition. Some broad agreement emerges, although the influence of oceanic changes is diminished in areas that lay in close proximity to the Laurentide and Fennoscandian ice sheets. Attention is drawn to limitations in the compilations and to the potential for improved models in the future.  相似文献   

SHORT COMMUNICATION SOL1:A PROGRAM FOR THE SIMULATION OF COMPLEX EQUILIBRIA USING A PERSONAL COMPUTER     

ALVAROIZQUIERDO  JOSE-LUISBELTRAN 《地理学报(英文版)》1988,(Z1)

The program SOL1,written in Turbo-PASCAL for use on a personal computers(IBM-PC orcompatible),has been developed for calculating the equilibrium concentrations of the species inmulticomponent ligand-metal mixtures of up to 21 components and 150 species.The main features arethe easy data input system,the possibility of three different tasks(calculating the composition of a singlesolution,simulating titration curves and calculating the species distribution as a function of pH)andprocedures for drawing the calculated curves on Roland DXY plotters.The program has been tested by astudy of six different complex systems.  相似文献   

Astrophysical limits on gauge invariance breaking in electrodynamics with torsion     

C. Sivaram  L. C. Garica de Andrade 《Astrophysics and Space Science》1993,201(1):121-123

General relativistic electrodynamics in a torsion background can give rise to a situation where the photons can ahve a non-zero rest mass and magnetic moment. Astrophysical limits are used to constrain these parameters.  相似文献   

The Soft X-ray Telescope for the SOLAR-A mission   总被引：6，自引：0，他引：6  

S. Tsuneta  L. Acton  M. Bruner  J. Lemen  W. Brown  R. Caravalho  R. Catura  S. Freeland  B. Jurcevich  M. Morrison  Y. Ogawara  T. Hirayama  J. Owens 《Solar physics》1991,136(1):37-67

The Soft X-ray Telescope (SXT) of the SOLAR-A mission is designed to produce X-ray movies of flares with excellent angular and time resolution as well as full-disk X-ray images for general studies. A selection of thin metal filters provide a measure of temperature discrimination and aid in obtaining the wide dynamic range required for solar observing. The co-aligned SXT aspect telescope will yield optical images for aspect reference, white-light flare and sunspot studies, and, possibly, helioseismology. This paper describes the capabilities and characteristics of the SXT for scientific observing.After the launch the name of SOLAR-A has been changed to YOHKOH.  相似文献   

Elementary flare bursts explained by explosive coalescence     

Cornelis de Jager  Jun-ichi Sakai 《Solar physics》1991,133(2):395-398

The observed burst durations of Elementary Flare Bursts (5–25 s), as well as the related other flare characteristics, such as the temperature (30–50 MK), the electron density (log ne = 10 to 11) and the magnetic field strengths (100 G to 200 G) can be explained quantitatively by the mechanism of explosive coalescence.  相似文献