查询词典 alternating direction method

On the bases of investigating and grasping the materials about the AHPPEs, AHPPEs' developing situation is analyzed completely in this article on vertical direction of time order and horizontal direction of department, in the meantime, material buying process, capital's using rate, and product selling process are also analyzed completely. Pointing out because the differences of owning right among State-Operated Enterprises, Collectively Operated Enterprises and Privately Operated Enterprises, there are differences in the producing behavior and trade development.A. According to the theory of producer behavior, POEs is on the way from stageⅠto stage Ⅱ,economic interests increasing;COEs is on the end of stageⅡ,economic interests decreasing;SOEs on stage Ⅲ,economic interests is negatively increasing.Model analyzing method shows that scale economic doesn't exist in SOEs and COEs, but POEs is the reverse.B. Different owning right enterprises have great differences in the respect of capital scale,product making and selling processes, at last SOEs and COEs' economic interests is much less than that of POEs. Scale economic doesn't exist in SOEs and COEs, POEs have the potential of developing scale economic, furthermore, the new-coming horizontal in the horizontal structure have the good situation.

在跟踪调查掌握资料的基础上，文章对该区农畜产品加工企业的发展状况从时间序列的纵向和行业结构的横向进行了比较分析，同时又从原材料购买过程、资金的利用效率以及产品的销售过程等各个方面进行了全方位地剖析，指出由于企业存在着国有、集体和民营产权类型的不同，导致生产行为和行业发展存在着差异：A、生产者行为理论分析总结出，民营企业正在处于第Ⅰ阶段向第Ⅱ阶段的过度区，经济效益上升；集体企业处于第Ⅱ阶段的末端，经济效益下降；国有企业处于第Ⅲ阶段，经济效益负增长。B、不同产权企业在资金规模，产品的生产和售卖过程上存在着很大不同，最终导致国有和集体企业经济效益比民营企业要差得多，用模型方法分析得出结论：国有企业和集体企业都不存在规模经济，而民营企业存在规模经济的发展潜力，并且在行业结构中属于民营产权的新兴行业发展状况良好。C、行业间也存在着很大的不同：集体企业的优势行业是制酒、粮食加工和肉食品加工等行业；民营企业的优势在皮件类、服装、粮食加工和制酒等行业；国有企业当中食品加工、肉食品加工和食品冷库类是优势行业。

A kind of method is proposed to discrete the data and measure the direction from the character of reconnaissance plane, after correcting the direction of the au tomatically tested and recorded data and acquiring the optimal data of antenna pattern.

提出了定制数据经过自动方位修正，得到最佳天线方向图数据，并根据侦察机及自动定制的特点实现离散数据测方位的方法。

The characteristic approximation is used to handle the convection part along the direc-tion of fluid namely characteristic direction to ensure the high stability of the method in approximating the sharp fronts and reduce the numerical diffusion; The mixed finite element spatial approximation is employed to deal with diffusion part and approximate the scalar unknown and the adjoint vector function optimally and simultaneously; In order to preserve the integral conservation of the method, we introduce the modified characteristic method.

该方法对方程的对流部分沿流体流动的方向即特征方向离散以保证格式在流动的锋线前沿逼近的高稳定性，消除数值弥散现象；对方程的扩散部分采用最低次混合有限元方法离散、同时以高精度逼近未知函数及未知函数的梯度；为保证方法的整体守恒性，在格式中引入修正项。

Firstly, the general method to building the system is analyzed, and one method based on the theory of the shortest procedure doing the same job is discussed. Secondly, the regional increasing method is used to decide the water flowing direction, in which way the actual drainage area water system is better simulated, producing the satisfying fitness between the built water channel and the actual one. The result also accords with the actuality of water conflux.

本文分析了数字流域水系生成所采取的一般方法，并且针对实际情况采取了以"最短流程法"为基础的数字流域生成方法，以区域增长法确定水流方向，更好地模拟了实际流域水系的情况，使得生成河道和实际河道达到了很好的拟合效果，也更加符合汇流的实际情况。

The characteristics of the steepest descent method's small amount of computations and conjugate direction method's fast convergence combined, a conjugate vector base method for solving ill-conditioned linear equations was proposed.

结合最速下降法计算量小和共轭方向法收敛速度快的特点，提出了一种求解病态方程组的共轭向量基的方法。

Mathematical model has been dealt with by punish function search method. Hooke-Jeeves modular vector search method and Powell conjugate direction search method have been adopted and modified.

利用"惩罚函数"法进行了数学模型的处理，采用并改进了Hooke-Jeeves的模矢搜索法及Powell的共轭方向法，还提出一种随机搜索法。

The examples indicate that the algorithm has strong pertinence and high efficiency, hi the discrete variable optimization, the problem is solved in the relative quotient method On the base of analyzing the relative quotient method, the conjugate gradient direction is used to modify the old search directions, the iterative matrix of the algorithm, and the method to resolve the discrete variable optimization, the relative conjugate difference quotient algorithm is presented.

离散变量优化算法是从相对差商法开始的，在详细分析相对差上法的基础上，用共轭梯度方向修正原有的搜索方向，并对算法的迭代矩阵进行相关的修改，最终形成一种用于求解离散变量优化问题的RCDQ法。

We firstly look back thebirth of SD method,and then present the SD scheme presented by Johnson et.al.forlinear problem to explain the basic idea and implementation:At step 1,we change the testfunctionwhere(1,β)t is the streamline or character direction decidedby hyperbolic operator of the continuous problem,therefore the SD method belongs tothe Petrov-Galerkin method;At step 2,we adopt time-space finite element space,whoseelement is only continuous in space variables x but discontinuous in time variable t.

首先回顾了SD方法的产生过程，然后以线性问题为模型，描述了SD方法的基本思想和具体实现：第一步，将标准有限元方法的检验函数ν改成其中(1，β)t是连续问题的双曲算子部分所确定的流线方向。换言之，SD方法是一种Peterov-Galerkin有限元方法；第二步，采用时空有限元空间，其元素关于空间变量x是连续的，但关于时间变量t仅分段连续。

In this paper, the modeling theory of multi-rigid-body dynamics was thoroughly investigated in order to make up the shortcoming in the above modeling method. The major research achievements are as follows:①Based on the matrix of direction cosine between the body-fixed base and the reference base, and Poisson equation of a rigid body rotating, the coordinate transformation method for the modeling of treelike multi-rigid-body dynamics is derived. The method is very routinization and easy to use the computer to carry on the symbol derivation.

本文针对上述建模方法存在的不足，深入地研究了多刚体系统动力学的建模方法，并将所研究的新方法应用于惯性振动设备的建模，取得的主要研究成果如下：①基于刚体连体基关于参考基的方向余弦矩阵和刚体转动的Poisson方程，导出了建立树形多刚体系统动力学方程的坐标变换法，其过程极其程式化，便于利用计算机进行符号推导。

And also metal material's corrosion form and method of anticorrosion are analyzed. The review still includes water chemistry's function, principle, type and characteristic in utility boiler. And the dissertation's studying direction, content and method are determined against the current existing problem of water chemistry of utility boiler. 2. High temperature potential-pH equilibrium diagram's application and high temperature solution's practical pH calculation The application method of high temperature potential-pH equilibrium diagram and solution's practical pH at high temperature are analyzed and calculated.

本文所做的主要研究工作有：一、火力发电站热力系统防腐综述及论文研究方向与内容在查阅大量国内外文献和资料，并结合多年来工作和研究经验的基础上，对火力发电站热力系统的组成、工作环境、常用金属材料、常见腐蚀形态、常用腐蚀控制方法以及电站锅炉水化学工况的作用、原理、类型与特点等作了全面深入的分析和总结，并针对目前电站锅炉水化学工况应用中存在的问题，提出了本文的研究方向、内容和方法。

Bob Eckert has been chairman and chief executive of Mattel for eight years.

美泰董事长兼首席执行官鲍勃·埃克尔特在任已8年。

The outlook for honors and disgraces carries on and surpasses the traditional outlook for honors and disgraces theoretically, and carries on and develops the theory of construction of socialist mora...

社会主义荣辱观的提出在理论上是对传统荣辱观的一次继承和超越，是对社会主义道德建设理论的继承和发展，在实践上有利于形成良好的社会风尚。