全文获取类型
收费全文 | 180篇 |
免费 | 0篇 |
专业分类
测绘学 | 1篇 |
大气科学 | 6篇 |
地球物理 | 35篇 |
地质学 | 71篇 |
海洋学 | 6篇 |
天文学 | 59篇 |
综合类 | 1篇 |
自然地理 | 1篇 |
出版年
2022年 | 2篇 |
2021年 | 4篇 |
2020年 | 7篇 |
2019年 | 5篇 |
2018年 | 7篇 |
2017年 | 11篇 |
2016年 | 17篇 |
2015年 | 4篇 |
2014年 | 9篇 |
2013年 | 7篇 |
2012年 | 4篇 |
2011年 | 10篇 |
2010年 | 4篇 |
2009年 | 8篇 |
2008年 | 11篇 |
2007年 | 9篇 |
2006年 | 16篇 |
2005年 | 5篇 |
2004年 | 3篇 |
2003年 | 6篇 |
2002年 | 2篇 |
2001年 | 1篇 |
2000年 | 2篇 |
1998年 | 2篇 |
1997年 | 2篇 |
1995年 | 1篇 |
1994年 | 4篇 |
1992年 | 2篇 |
1990年 | 1篇 |
1988年 | 1篇 |
1986年 | 1篇 |
1985年 | 2篇 |
1984年 | 2篇 |
1983年 | 1篇 |
1981年 | 2篇 |
1980年 | 2篇 |
1978年 | 2篇 |
1968年 | 1篇 |
排序方式: 共有180条查询结果,搜索用时 15 毫秒
1.
2.
3.
The excitation of the ballooning instability by the eigenoscillations of coronal loops is analyzed using the energy method. The second variation of the potential energy for the case of a plasma—plasma boundary is obtained via the linearized ideal MHD equations. It is shown that the eigenmodes of a magnetic tube and of a toroidal coronal loop coincide in a first approximation. The bending oscillations of the loops are able to excite the ballooning instability when β ? 1. The effects of the instability in solar coronal loops are discussed. 相似文献
4.
G. G. Boeskorov P. R. Nogovitsyn E. N. Mashchenko I. N. Belolyubsky A. D. Stepanov V. V. Plotnikov A. V. Protopopov M. V. Shchelchkova J. van der Plicht N. G. Solomonov 《Doklady Earth Sciences》2016,469(1):647-651
This paper considers the data on new findings of mammoth fauna remains in the Middle Lena basin used to specify the species composition of large Late Neopleistocene mammals represented by eleven species. The obtained range of radiocarbon dates made it possible to state that mass burials of Pleistocene mammal remains were formed in the region during the Karginsk Interstadial (24 000–55 000 years ago). 相似文献
5.
Ayupova N. R. Maslennikov V. V. Tseluyko A. S. Stepanov A. V. Artemyev D. A. Belogub E. V. Kotlyarov V. A. Butnyakov A. V. 《Geology of Ore Deposits》2021,63(1):79-86
Geology of Ore Deposits - Pyrite ores on the flanks of the Saum copper–zinc massive sulfide deposit are clastic sediments intensely transformed under conditions of acid diagenesis. Colusite... 相似文献
6.
7.
Interaction of the 30–300 keV electrons with whistlers in solar coronal loops is studied using a quasi-linear approach. We show that the electron–whistler interaction may play a dominant role in the formation of fast electron spectra within the solar flare loops with the plasma temperature 107 K and plasma density 1011 cm–3. It is found that Landau damping of whistlers provides weak and intermediate pitch-angle diffusion regimes of fast electrons in coronal loops. The level of whistler turbulence in the weak diffusion regime under flare conditions is estimated as 10–7 of the energy density in the thermal particles. The `top – footpoint' relations between the hard X-ray flux densities and spectra are derived. The reason for a `broken' spectrum of the flare microwave emission is discussed. 相似文献
8.
9.
10.