查询词典 declination parallel

In this paper, the convergent conditions in sequence or parallel update mode and the sufficient condition with only one global stable state for Hopfield network model with discrete time and continuous states when its neurons' activation function is non-decreasing (not being strictly monotone increasing) are discussed.

主要讨论离散时间连续状态的Hopfield网络模型中当神经元的激活函数为单调增函数时，并行和串行收敛的充分条件以及具有全局惟一稳定点的充分条件。

This paper investigates the converse theorem of rectangular projection theorem in descriptive geometry,and furthermore supplements and confirms another converse theorem,If the projection of two lines intersecting vertically fo rms a rectangle on a certain projecting plane,at least one line of the two lines is parallel to the projecting plane.

通过对《画法几何学》中直角投影定理的逆定理的研究，得出："若垂直相交的两直线在某一投影面上投影成直角，则该两直线至少有一条直线平行于该投影面"的推论。

Two kinds of convex lens which make parallel light rays converge to the focal point are given.

本文给出两种能使平行光严格聚焦于一点的凸透镜。

The parallel light rays of the prnicipal axis that approach a convex lens can converge to the focal point.

只有在近轴光线条件下，平行光通过凸透镜才可近似聚焦于一点。

This algorithm is proposed on the basis of the thought as follovvs: as for three dimensional Euclid space, the feasible region of any linear programming problem is a extended convex polyhedron, of which surface is consisted of some planes, and its objective function can be regarded as a parallel plane pencil with objective function value acting as parameter.

如果线性规划问题有最优解，那么过可行域的一已知顶点必至少存在这样一条棱——它以该己知顶点为一端点，可行域的另一顶点为另一端点，并使目标函数在另一端点的函数值优于己知端点的函数值，否则，该己知点就是线性规划问题的最优解。

The three dimension parallel numerical computation of the wet-sieved concrete specimen was executed successfully to verify the program of random convex polyhedron aggregate.

4为了验证本文提出的多面体骨料生成方法，利用现有细观力学分析并行程序成功地实现了对湿筛混凝土试件三维细观并行数值计算。

This paper uses the non-uniform grid model successfully to fulfill the three-dimensional simulation modeling of the double post-hole convolute whose structures are complex; uses strut to fulfill the load modeling of the computer implementation; explores the feasibility and application value of using MPI parallel algorith into the simulation.

成功地使用了非均匀网格模型，实现了对结构复杂的中心汇流区的三维数值建模；运用金属支撑杆模型，实现了负载的数值建模。探讨了MPI并行算法运用到模拟中的可行性及其应用价值。

A surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis.

具有平行于一个坐标轴的抛物线部分且垂直于同一个轴的椭圆形部分的表面。

The model of the 2-RPS-2-UPS four freedom parallel robots was established,and the movement simulation of the assigned path was performed by using the ADAMS software.The coordinate curve of the execution component in the rate process was obtained.

运用ADAMS软件建立了2-RPS-2-UPS四自由度并联机器人的模型，并进行了给定轨迹的运动仿真，得到了运动过程中执行构件的运动轨迹坐标值曲线。

In the second step,the parameters estimated in the first step are improved iteratively through a nonlinear optimization,based on the coplanarity condition,taking into account camera distortions.This works well if there are three sets of parallel lines independently in the view scene.

该标定方法分为两步：第一步标定相机内方位元素：由三灭点定理确定体视相机的初步标定参数；第二步标定实际流场：利用同源像线与基线必定确定一平面作为优化约束，对第一步取得的参数进行非线性优化。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。