查询词典 mathematical models

The operators are simple and easy to be implemented in the FEM. The mathematical models for the combination of ABCs and FEM are investigated and established.

其次研究并建立了标量渐近边界条件与有限元法结合的三维开域静磁场的数学模型，并提出具体的实施方法，推导出相应的离散方程。

According to the mathematical models established with a simple and effective method,and using the computer simulation technology,the movement of mechanism can be demonstrated,and the trace of any point on the linkage can be plotted automatically.

通过一种简单有效的方法建立了数学模型，采用计算机模拟技术，能动态演示机构的运动和自动绘制连杆上任意点的轨迹曲线，并能输出各运动构件的位移图、速度图和加速度图。

Two dimensional and three dimensional mathematical models for surface roughness and appearance are established.

建立的模型综合考虑了切削用量、刀具几何参数以及系统振动情况的影响，应用建立的模型进行了仿真。

In the second part of the thesis, we discribed the established technology platform of MLEM and Bayesian reconstruction methods for two and three dimensional datasets. The platform is flexible compared with commercial software and it helps researchers to test and develop new mathematical models in the future.

第二部份则是建立MLEM法与贝式重建法在二维与三维资料模式下的技术平台，除了可不受商业软体的限制外，亦有助於研究者对於新数学模型的测试与开发。

Mathematical models of CAD model optimization are built with exponential penalty to translate constraint optimization into unconstraint optimization.

分析了截面曲线特征和曲面特征的约束表达，建立了约束驱动特征模型优化的数学模型。

Then basic mathematical models of unrepairable systems with fuzzy random lifetimes are established.

此外，我们建立了模糊随机不可修系统的基本模型，包括模糊随机串联系统、模糊随机并联系统、模糊随机串—并联系统、模糊随机并—串联系统以及模糊随机冷贮备系统。

The dynamic mathematical models of steady state and unsteady state heat storage in liquid medium are established systematically.

介绍了按照改进的时间温度复合模型设计优化间歇过程换热网络的程序结构。

It was proposed in the 1960's and developed rapidly in the 1990's. However, some theory problems, for example, the fluid dynamics and mass transfer during the filling up period which could not be dealt with in conventional distillation theories has been remained unstudied. And the simulation and mathematical models have to be made based on some assumptions, which are different from the actual situation obviously. Therefore the further development of DACO was restrained in the past years.

该操作方法自20世纪60年代提出，90年代以来得到了迅速发展，但众多学者的研究基本上集中在优化操作及其与传统恒回流法的比较，而许多重要的基本理论问题至今缺乏研究，特别是传统精馏理论无法涉及的塔内无回流充液阶段的流体力学和传质问题一直没有得到很好解决，导致了动态累积循环操作法的数学模型和模拟计算只能以与塔内真实状况相差很大的简化假设为基础，这严重地阻碍着动态累积循环操作法的进一步发展。

Based on these phenomena,mathematical models of four effect parameters were built. According to the variables separation method,the method of weighted function was brought forward and used in decomposing the multidimensional function.

在建立效应参量模型时，参照分离变量法，提出使用加权函数的方法把多维函数分解成多个1维函数相乘，基本解决了利用有限实验数据建立数学模型的问题。

The mathematical models of dual three phase induction motor in stationary reference frame were obtained, using the concept of vector space decomposition with loss of one stator winding excitation set.

采用空间矢量解耦的方法建立了缺相双三相异步电动机在静止坐标系下的数学模型。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。