全文获取类型
收费全文 | 57篇 |
免费 | 2篇 |
国内免费 | 3篇 |
专业分类
测绘学 | 1篇 |
大气科学 | 3篇 |
地球物理 | 11篇 |
地质学 | 9篇 |
海洋学 | 6篇 |
天文学 | 32篇 |
出版年
2024年 | 1篇 |
2023年 | 2篇 |
2022年 | 3篇 |
2020年 | 1篇 |
2019年 | 1篇 |
2015年 | 1篇 |
2013年 | 2篇 |
2010年 | 2篇 |
2009年 | 5篇 |
2008年 | 1篇 |
2007年 | 1篇 |
2006年 | 2篇 |
2005年 | 3篇 |
2004年 | 5篇 |
2003年 | 2篇 |
2002年 | 6篇 |
2001年 | 3篇 |
2000年 | 4篇 |
1998年 | 2篇 |
1997年 | 3篇 |
1995年 | 5篇 |
1994年 | 1篇 |
1993年 | 2篇 |
1985年 | 1篇 |
1978年 | 1篇 |
1975年 | 1篇 |
1952年 | 1篇 |
排序方式: 共有62条查询结果,搜索用时 125 毫秒
11.
12.
C. Sigismondi D. W. Dunham K. Guhl S. Andersson H. Bode O. Canales P. Colona O. Farago M. Fernández-Ocaña A. Gabel M. Haupt C. Herold R. Nugent P. Oliva M. Patel C. Perello W. Rothe J. Rovira T. Schaefer C. Schnabel D. Schwartz A. Selva W. Strickling A. Tegtmeier C. Tegtmeier B. Thome W. H. Warren 《Solar physics》2009,258(2):191-202
In the annular or total eclipses of 3 October 2005, 29 March 2006, 22 September 2006, and 1 August 2008, observational campaigns
were organized to record the phenomenon of Baily’s beads. These campaigns were internationally coordinated through the International
Occultation Timing Association (IOTA) at both its American and European sections. From the stations in the northern and southern
zones of grazing eclipse, the eclipses have been recorded on video. Afterward, as many beads as possible have been identified
by analyzing the video data of each observing station. The atlas presented in this paper includes 598 data points, obtained
by 23 observers operating at 28 different observing stations. The atlas lists the geographic positions of the observing stations
and the observed time instants of disappearance or reappearance of beads, identified by an angle measured relative to the
Moon’s axis of rotation. The atlas will serve as a basis for determining the solar diameter.
Electronic Supplementary Material The online version of this article () contains supplementary material, which is available to authorized users. 相似文献
13.
Bode Antonio Álvarez Marta Ruíz-Villarreal Manuel Varela Marta M. 《Ocean Dynamics》2019,69(7):861-873
Ocean Dynamics - The analysis of a 28-year-long (1989–2016) series of monthly measurements of chlorophyll concentrations and primary production rates at a shelf station off A Coruña (NW... 相似文献
14.
15.
S. P. S. Eyres R. J. Cohen R. J. Davis H. T. Kenny H. M. Lloyd M. F. Bode S. M. Dougherty 《Astrophysics and Space Science》1995,224(1-2):457-458
We observed HM Sagittae with theMulti-Element Radio Linked Interferometer Network (MERLIN) at 6 cm and 18cm. We find non-thermal bipolar outflow in the eastwest direction, associated with optical emission lines, and thermal ridges to the north and south associated with the UV nebulosity detected by the HST. 相似文献
16.
S. M. Dougherty M. F. Bode H. M. Lloyd R. J. Davis S. P. Eyres 《Astrophysics and Space Science》1995,224(1-2):453-454
We present MERLIN images of the symbiotic system R Aquarii obtained at 1.7 and 5 GHz. We identify the emission from the binary system and derive a mass loss rate for the Mira that is commensurate with that in typical Miras. We show that variations in the radio emission over the last decade are consistent with the jet model for the system originally presented by Solf (1992). In addition, we calculate the spectral index distribution and find that there is no evidence of non-thermal emission. 相似文献
17.
C. M. Copperwheat I. A. Steele R. M. Barnsley S. D. Bates D. Bersier M. F. Bode D. Carter N. R. Clay C. A. Collins M. J. Darnley C. J. Davis C. M. Gutierrez D. J. Harman P. A. James J. H. Knapen S. Kobayashi J. M. Marchant P. A. Mazzali C. J. Mottram C. G. Mundell A. Newsam A. Oscoz E. Palle A. Piascik R. Rebolo R. J. Smith 《Experimental Astronomy》2015,39(1):119-165
18.
Varela M Bode A Lorenzo J Alvarez-Ossorio MT Miranda A Patrocinio T Anadón R Viesca L Rodríguez N Valdés L Cabal J Urrutia A García-Soto C Rodríguez M Alvarez-Salgado XA Groom S 《Marine pollution bulletin》2006,53(5-7):272-286
Chlorophyll, primary production, zooplankton biomass and the species composition of phytoplankton and zooplankton were studied in 2003, after the Prestige shipwreck. The information obtained was compared to previous data series available for the area affected by the spill. A large data series on plankton variables for the N-NW Spanish coast existed, and therefore a realistic evaluation of the effects by comparison with the range of natural variability could be carried out. We emphasized the evaluation of impact during the spring bloom, the first important biological event after the spill. Some minor changes were observed occasionally, but they did not show any clear pattern and were more related to the natural variability of the ecosystem than to effect of the spill. Plankton community structure did not undergo any changes. Only a few species were more abundant during spring 2003 than in previous years. No significant changes were detected in the planktonic community during productive periods, such as the spring bloom and the summer blooms related to intrusions of East North Atlantic Central Waters. The lack of evidence of the effects of the spill on planktonic communities is discussed in terms of the characteristics of the fuel, the high dynamics of the water masses, the biological mechanisms through which the fuel from the surface waters is transferred to the sea floor and, particularly, the influence of the natural variability by means of large and meso-scale hydrographic processes in the area under study. At the present time it is not possible to determine any minor effects the spill may have had on the plankton owing to the great variability of the planktonic cycles and the short-term impact of the oil from the Prestige on the pelagic system. 相似文献
19.
M.F. Bode 《Astronomische Nachrichten》2010,331(2):160-168
In this review, I present our current state of knowledge regarding both Classical Nova and Recurrent Nova systems. Two particular objects (V1974 Cyg and RS Oph) are chosen to illustrate the range of phenomena that may be associated with their outbursts. The wider importance of nova research is emphasised and some of the most pressing unsolved problems are summarised (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献
20.
John M. Porter O'Brien & Mike F. Bode 《Monthly notices of the Royal Astronomical Society》1998,296(4):943-948
The effect of rotating white dwarf envelopes in determining the structure of nova shells is examined. This is achieved by numerical hydrodynamic simulations of the flows around a binary star system. In previous studies of remnant formation, this rotation has not been included.
It is found that the structures formed in the flow are more consistent with observations of nova shells than the previous theoretical studies. The shells produced by the nova become more prolate with increasing white dwarf envelope rotation. Hence the rotation of white dwarf envelopes must be included in any future discussion of remnant formation.
A possible method of identifying the dominant process by which mixing of accreted and white dwarf matter takes place is suggested. 相似文献
It is found that the structures formed in the flow are more consistent with observations of nova shells than the previous theoretical studies. The shells produced by the nova become more prolate with increasing white dwarf envelope rotation. Hence the rotation of white dwarf envelopes must be included in any future discussion of remnant formation.
A possible method of identifying the dominant process by which mixing of accreted and white dwarf matter takes place is suggested. 相似文献