分布系数

Author considers how to define the spatial distribution of point sets by using the coefficient of variation of the area of Voronoi polygon and makes its application.

探讨了根据Voronoi多边形面积的变异系数来分析点状目标的空间分布形式的方法并进行了应用研究。

The effects of spatial distribution on the experimental results are studied in spectrally resolved two-beam coupling pump-probe technique.

在测量非线性折射率和双光子吸收系数的频率分辨双光束耦合抽运探测技术中，光场的空间分布没有得到考虑。

This trend also echoed the rally of Wall Street on the previous trading day and significant gains of regional markets on Monday, dealers said.

最终空气动力学的结果正是设计者的初衷--风阻系数减少25%(Cd 0.298)和30%的正压力改进，它们分布于前后轴之上。

Obtained material temperature field and thermal coupling coefficient and so on.

本文利用有限元的理论，对连续激光对金属材料的热传导过程进行了数值模拟，得到了金属材料的温度场分布和热耦合系数等结果。

First of all, the paper carried out test study on four two-spanned model members of FSMRCWB, including three 1/2-scaled two-storeyed models and one 1/3-scaled three-storeyed model. The paper analyzed the test results, including analysis on mechanical property of the composite wall beam under vertical loads, and failure mode, deformation capacity, aseismic performance under horizontal loads and constant vertical loads. Secondly, the nonlinear property of concrete is studed and the nonlinear models of FSMRCSS is builded by ANSYS. Last, The paper studies the result of ANSYS, which mainly includes the loading-displace curve of FSMRCSS under horizontal loads and constant vertical loads, the mechanics of arch under vertical loads lonely and under horizontal loads and constant vertical loads respectively, and status of the distribution and changing of vertical stress and cross shear on the surface of the suporting beam, and the influence of span ratio and hole.All in all, the caculating results are in good agreement with the test results.

本文首先进行了三个1/2比例的两跨两层和一个1/3比例的两跨三层的框支密肋复合墙梁的模型试验，分析了框支密肋复合墙梁在竖向荷载作用下的受力性能，以及在竖向荷载与水平低周反复荷载共同作用下的受力性能、变形性能、滞回性能、耗能系数及破坏形态；其次，研究了混凝土的非线性特性，建立了框支密肋复合墙梁非线性有限元模型，并借助大型通用有限元软件ANSYS进行计算；再则，进行了非线性有限元结果分析，主要研究框支密肋复合墙梁在竖向荷载与水平地震力共同作用下的荷载位移曲线，分析在竖向荷载单独作用下和在竖向荷载与水平地震力共同作用下墙梁的拱作用，托梁顶面的竖向应力和横向剪应力分布及变化情况，并讨论跨度比、洞口对墙梁拱作用和托梁顶面的竖向应力的影响。

Based on this, the total pressure loss coefficient and the change of pressure coefficient of the cascade are also given.

在此基础上，给出了采用两种模型计算得到的该叶栅总压损失系数的变化情况和叶片壁面压力分布的变化情况。

In order to estimate the trafficability of off-road vehicles, the linear relationships between the pressure and the stiffness of the tire and the action of the vertical tire force with the viscoelasticity are analyzed. The method to improve the precision of the model by the coefficients is presented.

为了评价越野车辆通过性能力，分析了胎压与轮胎刚度之间的线性关系和轮胎材料的粘弹性特性对轮胎垂向力分布的影响，提出了用系数修正胎压对刚度和有效接地面积影响提高精度的方法。

The impact is caused mainly by the variation of the horizontal and vertical eddy exchange coefficients in the model due to the annual cycle of the tropopause height.

而对流层顶高度变化所引起的模式中水平和垂直涡旋交换系数的变化是造成臭氧分布变化的直接原因。

Based on the heat balance equation of the vegetation canopy layer and the assumption that its short wavelength absorptance, long wavelength emissivity, heat or moisture transfer coefficient, and bulk stomatal resistance are random, uncorrelated variables with normal distribution densities, the theoretical modeling for IR radiance statistics of vegetation canopy surface is presented by Monte Carlo simulation, with the surface radiative temperature statistical distribution given.

根据植被层能量热平衡方程，选取植被短波吸收率、长波发射率、热与水汽传输系数和气孔阻力为独立的随机变量，并假设它们均服从正态分布，利用Monte－Carlo方法，模拟计算了植被表面红外辐射的统计特性。

The influence of pH value in the slurry is undulant without the stable trend. A model of gas-liquid mass transfer is obtained by measuring the inlet and outlet SO2 concentration of gas.

通过脱硫塔进出口气相浓度分布规律和液相、气相平均浓度的测量，建立了脱硫塔内气液传质的数学模型，得到：在液相喷射雷诺数Rel的值一定时，传质系数随着气相空截面雷诺数Reg增加而增加。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。