过滤因子是0到1之间的一个数值,它用来评估表中谓词为真的行所占的比例。
The filter factor is a number between 0 and 1 that estimates the proportion of rows in a table for which the predicate is true.
将属性确信因子(带有一个分配的实数值)添加到依赖于期望的其他需求类型中(例如,涉众请求,特性等)。
Add the attribute sureness factor (with a real assigned value) to other requirement types that could depend on expectations (e.g., stakeholder requests, features, etc.).
这些数值的计算包含如此多的因子,以至于只有计算机才能对付得了。
The calculation of the values involves so many factors that only a computer can cope with it.
给出了递推和采用加权因子两种有效方法,减少了数值计算中的误差。
Two effective methods, recurrence calculation and weighting factor, are given for reducing errors in numerical computations.
通过对弱奇异积分方程的数值求解,可得裂纹端点和交点处的应力强度因子。
Through the numerical solution of the integral equation, the stress intensity factors at the end points of the crack and intersection are obtained.
利用随机试验法等数值计算方法求得了模型中的表观活化能和视频率因子等动力学参数。
The kinetic parameters in the models, including pseudo activation energy and apparent frequency factor were obtained by using Monte Carlo numerical calculation method.
列举不同接触刚度取值对应的有限元计算结果并分析结果的收敛性,提出了接触刚度因子的数值递推法。
The corresponding calculation results of different contact stiffness values are listed and the convergence is analyzed, and the numerical recursive method of contact stiffness factor is put forward.
并采用数值实例分析了退货率和时间惩罚因子对最优允许退货时间长度、最佳订货量以及最大产品收益的影响。
The influence of return rates and time penalty factors on optimal periods of returns, optimal order quantities and maximum profit are evaluated through using a numerical instance.
最后得到垂直裂纹端点处的应力强度因子和压头下方的压力数值。
Stress intensity factors at vertical crack tips and numerical results of pressure under punch are obtained.
通过试验和数值研究推导了完全叠接管节点试件在轴向力作用下应力集中因子的参数方程。
This paper presents the parametric equations on stress concentration factor(SCF) of completely overlapped tubular joints under axial loading using experimental and numerical analysis.
在高数值孔径、低工艺因子的光刻技术中,投影物镜彗差对光刻质量的影响变得越来越突出,因而需要一种快速、高精度的彗差原位测量技术。
In high numerical aperture and low technic factor lithography process, degradation of the image quality because of the coma aberration in the projection lens has become a serious problem.
给出了剪切应力强度因子和裂纹面接触区尺寸的数值结果。
The numerical results of shear stress intensity factor and the length of the crack face contact region are given.
对矩形裂纹面进行了数值计算,得到了应力强度因子沿裂纹边界的分布规律。
Numerical calculation has been taken for rectangular crack and the distribution of stress intensity factors along the crack edge has been obtained.
并通过数值计算分析了等离子体填充因子对PASOTRON的时间增长率及工作频率的影响。
It is analyzed by numerical computation that the temporal growth rates and the frequency of PASOTRON are affected by the filling factor of plasma.
数值例子说明,全局优化方法保证了平均准则和折扣准则下的计算结果之间当折扣因子趋近于零时的极限关系成立。
The numerical examples show that, with the application of these global optimization methods, an average-cost problem is the limitation of a discounted problem as the discount factor goes to zero.
按照均衡比例因子的思想,对扩展作业空间方法进行了修正,使其能适应不同的性能指标,有较好的数值稳定性。
Based on the balanced scale factor proposed, a new modified extended task method is established, which is suitable for all kinds of performance indices, and it is of high numerical stability.
提出了一种确定结合材料界面端应力强度因子的数值外插方法。
A numerical approach combining with the finite element method, applied to determine stress intensity factors at the interface edge of bonded materials is proposed.
本文以T42数值预报产品为因子,用卡尔曼滤波方法建立可更新系数的预报方程作南京和芜湖的温度预报。
The temperature forecasting equation with renewed coefficients are set up by using Kalman filter technique based on the factors of T42 productions for forecasting in Nanjing and Wuhu.
指出按公式计算的退磁因子与教材中列举的数值相差较大。
It is pointed out that there is a far cry between the calculated demagnetizing factor and the value listed in the teaching book.
黏聚力形成的阻抗强度因子数值,与黏聚裂纹长度和材料极值拉伸应力存在数量关系。
The stress intensity factor of crack solids is a fracture mechanics index that denotes the effect of loading and crack geometry.
数值计算结果证明一阶横模具有很高的品质因子和很高的耦合输出效率。
The numerical simulation shows that the first-order transverse modes have fairly high Q factor and high coupling efficiency to the output waveguide.
数值模拟结果表明:当自发发射因子较大时,对于不同的有源区体积,电流调制带宽显著不同。
The numerical simulation results show that the modulation bandwidths is obviously different by varying the active volume at an high spontaneous emission coupling ratio.
由能量法确定了截面因子数值之后,定量地给出计入剪力时梁变形的分析结果。
After determining the magnitude of the section factor by the energy method, the analytical results of deformation of beams, including the effect of shear, are given quantitatively.
校正因子与真实解(数值解)十分接近,66个数据的平均相对误差为0.04%。
The correction factor is nearly equal to the true value (numerical solution), the average relative error of 66 data is 0.04%.
该方法把虚拟测量处理为等式约束,避免了由于权因子分散而导致的数值病态问题。
In the proposed method, virtual measurements are treated as equality constraints, which avoids the numerical ill-conditioning problem due to the disparity in weighting factors.
然后采用有限元数值计算方法对叶片进行静力分析、模态分析及裂纹应力强度因子计算,最后反推出叶片在旋转状态下振动应力值的大小。
Through static, modal and crack stress intensity factor analysis, the vibration stress of blade under rotating state before fracture can be calculated out finally.
给出了数值计算结果,并分析了弹性层厚度对场强度因子与能量释放率的影响。
Numerical results were presented graphically. The influence of thickness of elastic layer on field intensity factors and energy release rate was investigated.
直接比较法使用关键因子从上市公司中选取可比企业,摘取可比数值计算出目标企业价值。
The direct comparison method utilize some key factors to choose comparable enterprise from listed companies, by which we can calculate the value of the target enterprise.
我们数值地研究了镶嵌在方形排列的声子晶体中声源的能量辐射角度分布。结果表明,能量辐射角度分布和增强因子强烈地取决于源相对于所处单胞的位置的对称性。
The angular distributions of power and radiation enhancement factor strongly depend on the position of acoustic source relative to the unit-cell where the source is placed.
我们数值地研究了镶嵌在方形排列的声子晶体中声源的能量辐射角度分布。结果表明,能量辐射角度分布和增强因子强烈地取决于源相对于所处单胞的位置的对称性。
The angular distributions of power and radiation enhancement factor strongly depend on the position of acoustic source relative to the unit-cell where the source is placed.
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