查询词典 saltation

Also, the land conversion is affected by both the macroeconomic and correlative policies and is inclined to make some saltation when new policies are carried out.

农地非农化同时受宏观经济背景、耕地占用与保护政策的双重影响，且容易因政策调整而出现一些"突变"。

The grey morphology transform,filter construction and transient saltation extraction with mathematical morphology operators in one dimension are introduced in detail.

详细介绍了一维情况下灰度形态变换、形态学算子构造的滤波器和提取暂态突变特征等。

And then we demarcated the saltation time and starting time of this travelling wave respectively by the first kind of cubic B-spline wavelet and the second kind of cubic B-spline wavelet.

由于行波各频率分量在线路中的传播速度是不同的，而我们所检测到的行波浪涌并非行波的最高频率分量，所以必须选取与所检测到的行波浪涌相吻合的波速。

It also presents the basic GA theory, water distribution system's mathematical modeling, one king and many queens genetic inheritance method, genetic saltation theory and some of the C++ source codes.

进而对遗传算法的基本原理、给水管网现状分析数学模型的建立及求解、一王数后的基因遗传方法和基因突变方法进行了分析，并给出实现这一方法的C语言核心代码。

It is suggested that the wind shear velocity with a saltating cloud reflects the response of airflow to the ground surface and the saltation layer.

根据数值模拟和模拟实验，我们认为有风沙运动的动床剪切风速是综合反映风场与跃移层以及地表之间相互作用的物理量。

The saltation coefficient of wavelet analysis was regarded as a characteristic value to predict a sudden accident and the changing trend of the coefficient was figured out. The results s...

结果表明：小波变换能有效捕捉冲击信号的时域特征和故障发生的时间历程，用小波分层突变系数所做的趋势图能有效地预测故障发展趋势，避免突发故障。

Polycyclic aromatic hydrocarbons are the environmental organic pollutants which can induce cancers, teratogeny and organism saltation.

多环芳烃是一类具有致癌、致畸以及能够诱导有机体突变的环境有机污染物。

The methods used here are proved be correct therefore are useful for the numerical simulation in unsteady incompressible flow with dual time step and preconditioning . Simulation to the sand saltation is carried.

文中所采用的双时间法的数值求解方法、边界条件的提法、差分格式的选取经验证是成功的，为双时间法与预处理方法的结合对低马赫数流动的数值计算积累了宝贵的经验。

The saltation coefficient of wavelet analysis was regarded as a characteristic value to predict a sudden accident and the changing trend of the coefficient was figured out.

文中采用小波分层突变系数作为判别故障隐患的特征值，并对该特征值进行趋势分析。

The results show that, during the period of collision between the sand grain and the sand bed, the lost kinetic energy is more than half of the total energy. Moreover, because the percentage of collision angles with more than 0° is up to 70％, the vertical speed of sand increases even if the kinetic energy decreases, which ensures that the sand particles can receive more energy from the air to keep on the saltation movement.

实验结果表明，沙粒与沙床碰撞过程中损失的动能超过总能量的一半，且由于碰撞平面角大于0°的比例达到70％，即使沙粒在碰撞过程中能量有所损失，沙粒与沙床碰撞后垂直分速度增加的现象仍比较普遍，使得沙粒在与气流相互作用的过程中获取更多的能量，从而为沙粒的持续跃移提供了保证。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。