查询词典 Poisson

Green quasifunction method is applied to Poisson's equations. Fredholm integral equations of the second kind are obtained. Irregularity of the kernel of integral equations is overcome by choosing a suitable form of the normalized boundary equation.

应用准格林函数方法，可将Poison方程化为第二类Fredholm积分方程，通过边界方程的适当选择，积分方程核的奇异性被克服了。

The high value of Poisson s ratio and low value of elastic anisotropy ratio imply that the interatomic force in ZrCr_2 is weakly directi...

并计算了层错与位错的弹性交互作用。对ZrCr2Laves相的力学特性和变形机制进行了讨论。

The results show that the calculated elastic properties are close to the experimental results. The high value of Poisson's ratio and low value of elastic anisotropy ratio imply that the interatomic force in ZrCr2 is weakly directional.

结果表明：计算得到的ZrCr2 Laves相的弹性性质与实验结果相近，其泊松比和弹性各向异性系数大小说明ZrCr2 中原子键合的方向性并不强烈； ZrCr2 Laves相的内禀和外禀层错能分别为112 mJ/m2和98 mJ/m2。

The key to this yield criterion is that the concept of internal friction angle which used in soil mechanics has been introduced to infer the relationships among poisson ratio, internal friction angle and relative density.

并且在Miss屈服准则的基础上论证了粉末体屈服准则在主应力空间，为一个回转椭球体。

Based on the 2-D distribution of channel impurity, the distribution of 2-D electric field and 2-D interaction potential, which is caused by the interaction between the ionized impurity in the depletion layer and radiation induced positive spatial charge, is analyzed by using image charge method. Resolving Poisson equation, the mobility expression of N-type and P-type non-uniform channel MOS and the mathematics expression of the threshold voltage model of DMOS are obtained.

基于沟道杂质的非均匀分布，借助镜像法导出非均匀沟道辐照正空间电荷和沟道中电离杂质的二维场及其作用，给出非均匀沟道DMOS器件辐照正空间电荷与沟道杂质的二维互作用势。

Parametric estimation of mixed poisson-gaussian distribution model.

混合泊松高斯分布模型的参数估计。

Modulus of elasticity of the masonry and Poisson's ratio is lower than that of test.

经试验结果验证，计算值和试验值吻合较好，且偏于安全。

Building material ; high performance concrete ; modulus of elasticity ; poisson ratio

建筑材料；高性能混凝土；弹性模量；泊松比

Based on the Poisson bracket and the discriminant of integral of motion,we prove the problem that the moment of momentum is the integral of motion when the mass point is affected by central force.

运用泊松括号，依据运动积分判别式，证明了质点受有心力作用时，其动量矩是运动积分的问题。

The results of this study demonstrate that the data of HBsAg carriers distributed in different sizes of families do not fit the binomial distribution and Poisson distribution,but fit the Neyman distribution and negative binomial distribution.

结果表明HBsAg携带者在家庭中的聚集性可以用统计的理论分布证明。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。