全文获取类型
| 收费全文 | 360篇 |
| 免费 | 4篇 |
专业分类
| 测绘学 | 6篇 |
| 大气科学 | 11篇 |
| 地球物理 | 186篇 |
| 地质学 | 44篇 |
| 海洋学 | 1篇 |
| 天文学 | 109篇 |
| 综合类 | 1篇 |
| 自然地理 | 6篇 |
出版年
| 2018年 | 4篇 |
| 2017年 | 4篇 |
| 2016年 | 6篇 |
| 2014年 | 7篇 |
| 2013年 | 11篇 |
| 2011年 | 10篇 |
| 2010年 | 10篇 |
| 2009年 | 9篇 |
| 2008年 | 6篇 |
| 2007年 | 5篇 |
| 2006年 | 6篇 |
| 2005年 | 8篇 |
| 2001年 | 7篇 |
| 2000年 | 4篇 |
| 1999年 | 9篇 |
| 1997年 | 4篇 |
| 1996年 | 12篇 |
| 1995年 | 6篇 |
| 1994年 | 10篇 |
| 1993年 | 6篇 |
| 1992年 | 9篇 |
| 1991年 | 5篇 |
| 1990年 | 12篇 |
| 1989年 | 18篇 |
| 1988年 | 11篇 |
| 1987年 | 6篇 |
| 1986年 | 7篇 |
| 1985年 | 9篇 |
| 1984年 | 8篇 |
| 1983年 | 7篇 |
| 1982年 | 5篇 |
| 1981年 | 8篇 |
| 1980年 | 7篇 |
| 1978年 | 9篇 |
| 1977年 | 3篇 |
| 1976年 | 5篇 |
| 1975年 | 5篇 |
| 1974年 | 4篇 |
| 1973年 | 5篇 |
| 1972年 | 3篇 |
| 1971年 | 8篇 |
| 1970年 | 6篇 |
| 1969年 | 6篇 |
| 1968年 | 3篇 |
| 1966年 | 3篇 |
| 1963年 | 4篇 |
| 1962年 | 3篇 |
| 1960年 | 5篇 |
| 1959年 | 3篇 |
| 1957年 | 5篇 |
排序方式： 共有364条查询结果，搜索用时 109 毫秒
91.
Summary Drawing on the results of new measurements of the mechanical parameters of the SVK seismometer No. 5055, the level of magnification of the vertical seismograph used in the past, has been corrected. The amplitudes of the seismic waves from earthquakes in the period 1963–1978 have to be increased by 88% and the station correction for determining the magnitudes of earthquakes decreased by 0.274. 相似文献
92.
Jiří Vaněk Aleksander Tskhakaya Reviewer J. Janský 《Studia Geophysica et Geodaetica》1977,21(3-4):259-267
Summary The amplitude-distance curves of P waves, valid for the region of Central Asia, were derived in the distance range between 13° and 36° using observations of a network of eight Caucasian seismic stations. The curves are characterized by an anomalous increase of amplitudes between 13° and 20° followed by a large decrease of amplitudes in the distance range between 20° and 35°. Both the increase and decrease of amplitudes are interrupted by several local maxima. A comparison of the present amplitude curves with those derived for the regions of South-Eastern Europe and Asia Minor enabled us to correlate the individual local maxima of amplitude curves and to investigate the variation of their position due to the lateral inhomogeneity of the upper mantle structure in Eurasia.A. Tskhakaya deceased in 1970. 相似文献
93.
94.
З.И Арановиб А.Я Меламуд С.И Александров Axel Plešinger Josef Horálek Пеuензенm V. Červený 《Studia Geophysica et Geodaetica》1980,24(2):142-152
Summary The dynamic focal parameters of a series of strong earthquakes, recorded by the FBV broadband velocigraph at KHC (Kaperské Hory, Czechoslovakia), are estimated. The influence of specific wave pattern features on the estimation accuracy is studied. Polarization analysis is used to demonstrate the complicated interference character even of record portions corresponding to a single teleseismic wave group. The values of the dynamic focal parameters do not depend significantly on the length of the analysed record portions and are sufficiently consistent with those reported by Riznichenko [2]. The possibility of estimating dynamic focal parameters from recording of standard classes B (intermediate band) and C (long-period) seismographs is pointed out. 相似文献
95.
Janusz Niewiadomski Marek Gòrski Jan Kozák Reviewer V. Červený Reviewer J. Javornický 《Studia Geophysica et Geodaetica》1980,24(4):373-381
Summary The paper deals with a study of the mean stress field (M) and its gradient (M/x) in uniaxially loaded two-dimensional models of small thickness with respect to other dimensions, in which two inhomogeneities, e.g., a circular opening and a linear slit have been made. Particular attention was paid to the stress field development in the treated models durin gthe change of the mutual geometric configuration of both the inhomogeneities in question. The problem was analysed theoretically by means of Muskhelishvili's potentials of the two-dimensional theory of elasticity. To compare the results of calculations, the schlieren method was used to visualize and record the studied gradients of stress fields in physical models. The results of the calculations were calibrated by laboratory tests. In this way the individual model situations were classified from the point of view of their resistance to the applied load. 相似文献
96.
a mmuu ¶rt; ¶rt;au nm u , a auauu ma mu au u. aamuam m¶rt; a, ma u mua mu ¶rt;au u ¶rt;aa u uma a; m a mu ¶rt;auu m ¶rt;muam 10% m ¶rt;au, a u nuuau m . 相似文献
97.
98.
99.
100.