首页 | 官方网站   微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   32篇
  免费   0篇
数理化   32篇
  2022年   1篇
  2020年   4篇
  2018年   4篇
  2016年   3篇
  2013年   3篇
  2012年   1篇
  2011年   1篇
  2010年   1篇
  2008年   4篇
  2006年   1篇
  2005年   4篇
  2004年   1篇
  2002年   2篇
  1990年   1篇
  1985年   1篇
排序方式: 共有32条查询结果,搜索用时 28 毫秒
1.
2.
Scientific-Research Institute of Applied Mathematics and Mechanics, Tomsk. Translated from Prikladnaya Mekhanika, Vol. 26, No. 11, pp. 31–35, November, 1990.  相似文献   
3.
The nanocomposite structure of the DLC-C2N condensate is confirmed by analyzing the x-ray emission spectra of the CN0 ≤ x ≤ 0.5 films prepared by pulsed arc sputtering of graphite in the presence of nitrogen.  相似文献   
4.
Technical Physics - The ballistic resistance of a combined cermet material based on a high-hardness ceramic bound with an intermetallide on a high-strength metal substrate, (TiB2 + NiTi) + Ti, is...  相似文献   
5.
The effect of green porosity of powder specimens and dispersion of nanostructured tungsten powder specimens on the density of sintered alloys of the tungsten – nickel system is investigated. It is shown that the maximum density of the alloys is achieved during liquid-phase sintering of powder compacts for one hour irrespective of their initial porosity within the range from 30 to 65 vol.%. Dispersion of the nanostructured tungsten powders also affects the final porosity. Using the calculations and experimental studies, the effective penetration of cylindrical striker bars made from the WNi-91 tungsten-nickel alloy into steel plates is investigated.  相似文献   
6.
Technical Physics - In this study, we perform calculations and experimental studies of the destruction of composite impactors from a porous tungsten–nickel–iron–cobalt alloy with...  相似文献   
7.
8.
9.
Crystallography Reports - The effect of a traveling magnetic field on the parameters of Te-doped GaAs single crystals in the carrier density range of 5 × 1017–2 ×...  相似文献   
10.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号