排序方式: 共有2条查询结果,搜索用时 0 毫秒
1
1.
戚作涛 《非线性动力学学报》1998,5(2):167-171
研究冲击减振系统受Gauss白噪声激励,提出新的力学模型,从随机微分方程出发,在随机到达率是常数的情况下,得到主振体位移、速度响应的二维联合概率密度函数抽满足的二阶偏微分方程并求出概率密度函数精确解。 相似文献
2.
The screened hydrogen-ion model with l splitting is proposed to calculate the average ionization stage (AIS) of Sn plasma in the temperature of 100~2000eV and density of 0.001~10g•cm-3. The relationships of AIS with density and temperature are given, and the “flat-roof” phenomenon is discussed. 相似文献
1