全文获取类型
收费全文 | 137篇 |
免费 | 0篇 |
专业分类
化学 | 75篇 |
力学 | 5篇 |
数学 | 4篇 |
物理学 | 53篇 |
出版年
2021年 | 1篇 |
2019年 | 4篇 |
2018年 | 2篇 |
2017年 | 1篇 |
2016年 | 4篇 |
2015年 | 1篇 |
2014年 | 3篇 |
2013年 | 2篇 |
2012年 | 3篇 |
2011年 | 4篇 |
2010年 | 4篇 |
2009年 | 5篇 |
2008年 | 13篇 |
2007年 | 8篇 |
2006年 | 4篇 |
2005年 | 5篇 |
2004年 | 5篇 |
2003年 | 2篇 |
2002年 | 8篇 |
2001年 | 4篇 |
2000年 | 3篇 |
1998年 | 6篇 |
1997年 | 5篇 |
1996年 | 3篇 |
1995年 | 2篇 |
1994年 | 4篇 |
1993年 | 2篇 |
1992年 | 4篇 |
1991年 | 3篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1984年 | 4篇 |
1983年 | 4篇 |
1979年 | 2篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1975年 | 2篇 |
1966年 | 2篇 |
排序方式: 共有137条查询结果,搜索用时 15 毫秒
11.
The role of collisions in the ion-cyclotron instabilities in the rotating plasma has been investigated. Collisional varieties of such instabilities at moderate collisions have been shown possible. At frequent enough collisions the total stabilization of such instabilities takes place. A survey of the contemporary state of the problem of the ion-cyclotron instabilities in rotating plasma has been given. 相似文献
12.
13.
14.
15.
N. V. Gorbach A. I. Mikhailovskii I. M. Fuks L. I. Sharapov 《Radiophysics and Quantum Electronics》1994,37(10):837-841
The interference noise spectrum due to sea clutter has been investigated using statistical scattering theory. The scattered field was calculated in the tangent-plane approximation. The bearings of a motionless source are taken in the bistatic case. Taking the function of shadows on a spatially inhomogeneous random surface into account, we were able to explain the nonmonotonic dependence of the width of the spectrum of arrival angle fluctuations on the distance as well as the presence of maxima in the spectrum at frequencies substantially higher than that of the maximum of a rough sea surface. The theoretical results are compared with data from a full-scale experiment.Radioastronomical Institute, Ukrainian Academy of Sciences. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, No. 10, pp. 1294–1302, October, 1994. 相似文献
16.
17.
Zh. D. Chaplanova Yu. K. Mikhailovskii V. E. Agabekov V. K. Ol’khovik N. A. Galinovskii E. A. Gracheva 《Journal of Applied Spectroscopy》2007,74(3):333-337
We have studied the spectral properties and morphology of thin films (TVD films) formed by thermal vacuum deposition of 4,4′-bis[(E)-1-(1,3-benzoxazol-2-yl)-2-ethenyl]-1,1′-biphenyl
and its substituted derivatives. We have shown that introducing bulky 2,2′-oxyhexyl substituents into the biphenyl units leads
to a shift of the fluorescence maximum for the TVD films toward shorter wavelengths, a decrease in their photostability, and
aggregation of the films during storage.
__________
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 74, No. 3, pp. 300–303, May–June, 2007. 相似文献
18.
19.
20.