查询词典 curvilinear

In this paper, different motion states such as the accelerated rectilinear motion and curvilinear motion are simulated and the relativity between the prediction error basing on the Kalman Filter and the motion state is presented.

本文通过对不同的运动状态进行仿真实验，给出了基于卡尔曼滤波算法得到的预测误差与运动状态的关系。

A new method for the generation of curvilinear grid has been proposed. Some curvilinear grid generation examples show that satisfactory grids can be generated for simple-connected regions and connected- regions with complex boundary by using the proposed adjusting factors.

3提出了一种生成边界处正交曲线网格的新方法，收敛速度快，在复杂边界流场区域的数值计算中，有很大的实用价值；为了克服复杂几何边界给数值计算带来的困难，提高通用性以及水流的预测精度，本文采用上述网格生成技术，在直角坐标系三维非恒定明渠紊流的沿层积分数值模型基础上，发展了曲线坐标系下的多层紊流水动力模型。

Some curvilinear grid generation examples show that the proposed adjusting factors ideal grids can be formed for simple connected regions and connected regions with complex boundary. The curvilinear grids near boundaries are orthogonal ...

实例检验表明，该调节因子能够对复杂边界的单连通域或多连通域的水域生成理想的曲线网格，即边界处网格正交，内部网格分布能够适应物理量场的变化情形。

The curved grid is taken to constitute a generalized curvilinear system. Thus, the wave equations have to be written in curvilinear coordinates before applying the numerical scheme.

这一映射技术将直角坐标系下的曲界面变换成曲坐标系下的规则界面，在曲坐标系下用伪谱法模拟波场，最后利用插值得到实际波场的合成记录。

For some particular casesof boundary-value problems such as the problems with curvilinear boundariesor a sharp re-entrant corner,the B-FEM in curvilinear coordinates will givequite fine results.

对一些特殊问题，如曲线边界问题、尖角奇异性问题等，在曲线坐标系中建立的B样条有限元法，具有良好的计算效果。

Key words: traffic forecast; curvilinear regression; BP neural network; curvilinear regression coupling algorithm; traffic

引用格 式：范加冬，张令刚。BP，曲线回归耦合算法在交通量预测中的应用。中国科技论文在线精品论文，2010，3(6)：619～622。

In the Linear Regression Transform Enabled Curvilinear Regression Based Adaptive Process Scheduling approach, the system resources are allocated through the closed loop by the feedback controllers according to the system scheduling errors.

在基于可化为线性回归的曲线回归的自适应进程调度(Linear Regression Transform Enabled Curvilinear Regression Based Adaptive Process Scheduling-LiCAPS)方法中，系统资源由反馈控制器根据系统的调度误差进行闭环分配。

There were no significant correlations between food concentration and the rate of population increase of Clone B as well as the mixis rate and fertilization rate of Clone A, B and C. However, the relationships between food concentration and the rate of population increase of Clone A and C were significantly curvilinear, with the regression equation Y=0.019X2-0.209X+0.638 and Y=0.042X2-0.402X+0.852, respectively. The relationships between the food concentration and the instant rate of population increase, the mixis rate and the fertilization rate of clone D were all significantly curvilinear, with the following regression equations Y=-0.052X2+0.609X-0.667,Y=0.994X2-15.763X+73.424 and Y=-0.251X2+15.940X-15.446, respectively.

克隆B的种群瞬时增长率、种群中的混交雌体百分率和混交雌体受精率均与食物密度间无显著的相关性；克隆A和C的种群瞬时增长率与食物密度间呈曲线相关，而其种群中的混交雌体百分率和混交雌体受精率均与食物密度间无显著的相关性；克隆D的种群瞬时增长率、种群中的混交雌体百分率和混交雌体受精率均与食物密度间呈曲线相关。

The result showed that net photosynthetic rate in leaves of sunny positions for Populus euphratica Oliv appeared in curvilinear changes with double peaks and apparent middy depression diurnally,however,the leaves of shade positions appeared in curvilinear changes with single peaks.

结果表明：在生长季胡杨阳叶光合速率的日变化呈现双峰曲线，具有明显的光合"午休"现象，但胡杨阴叶光合速率的日变化呈单峰曲线。

New boundary integral equations for the torsion problem of an isotropic bar with curvilinear cracks are derived by using integration by parts and other techniques to the traditional boundary integral formulations. And the boundary integral equations for the torsion problem of an anisotropic bar with curvilinear cracks are also derived by using the isotropicalized boundary element method. Then the anisotropic problem can be solved on the base of the boundary element method of isotropic problem.

然后用各向同性化方法，将各向异性材料裂纹柱体的扭转问题转化为各向同性材料的问题，在各向同性材料裂纹柱体扭转问题的新的边界积分方程的基础上，推导出了适用于各向异性材料裂纹柱体扭转问题的边界积分方程，然后按已推导出的各向同性问题的边界元法求解。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐