首页 | 本学科首页   官方微博 | 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   31篇
  免费   0篇
化学   7篇
力学   3篇
物理学   21篇
  2005年   1篇
  2004年   1篇
  2003年   4篇
  2002年   1篇
  1996年   2篇
  1994年   1篇
  1993年   1篇
  1992年   1篇
  1991年   1篇
  1990年   8篇
  1989年   5篇
  1987年   1篇
  1982年   1篇
  1979年   1篇
  1973年   1篇
  1971年   1篇
排序方式: 共有31条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
5.
Measurements of the distribution of rotational states in a nitrogen molecular beam before and after deflection by collision with rare gas atoms are interpreted in terms of the intermolecular potential. A potential of the form V(R, θ) = 4?(1 + b2P2(cosθ)| R*12 ? 4θ [1 + α2P2(cosθ)]/R*6 is used with semiclassical theory using the sudden approximation to fit the observations. As α2 is known, as well as ? and the size parameter, σ, the objective is to find b2. However, the calculated state distributions are found to systematically vary from those measured, irrespective of the value of b2. This result is tentatively explained as due to the inadequacies of the 12-6 potential.  相似文献   
6.
An integral equation formulation for buoyancy-driven convection problems is developed and illustrated. Buoyancy-driven convection in a bounded cylindrical geometry with a free surface is studied for a range of aspect ratios and Nusselt numbers. The critical Rayleigh number, the nature of the cellular motion, and the heat transfer enhancement are computed using linear theory. Green's functions are used to convert the linear problem into linear Fredholm integral equations. Theorems are proved which establish the properties of the eigenvalues and eigenfunctions of the linear integral operator which appears in these equations.  相似文献   
7.
8.
9.
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