重新计算

This paper presents a fast algorithm based on the measured equation of invariance.Conformal meshes are made along the surface of two-dimensional scatterer.Renumbering of nodes changed the original sparse matrix into band one,and the consumption of computer memory and CPU time decrease from O(N2) to O.Via this new algorithm,electrically large problem can now be rapidly solved.

提要 本文基于不变性测试方程法提出一种快速算法，在二维散射体表面建立共形差分网格后，通过对节点的重新排序，将原问题中的稀疏矩阵变换为带状稀疏阵，从而使占用的计算机内存和计算时间均由O(N2)下降为O，可以解决原来无法计算的问题。

After finding the free slots to place the vector, the transition vector must be recalculated as follows. Assuming the new place begins at b , the procedure for the relocation is

在找到空闲的位置来放这个向量，转移向量必须重新如下计算，假设新的位置开始于 b ，重新分配的过程如下

Starting with diagrammatic methods in linear algebra,this paper reviews the mathematical basis for spin network s,proves again loop operator and binor identity,and computes some formulas about spin network s.

从线形代数的图解方法出发，对自旋接网圈的数学基础做出回顾，并重新推证了圈算符和双元恒等式，计算了关于自旋接网圈的一些计算公式。

The deficiency for carrying out partial balance on inertia force of crank-slider mechanism by the formerly used mass substitution method has been pointed out.

指出了以往运用质量代换方法对曲柄滑块机构惯性力进行部分平衡的不足，运用MATLAB编程计算重新描绘出分别考虑一级惯性力和二级惯性力时各惯性力的变化曲线，通过优化程序重新估算了使机构中残存的最大惯性力的最小配重条件，并进行了理论对比。

At first ,the design calculate the structure of the sugarcane reaping machine to the organization,and then select some standard parts,such as the bearings,the bolts and the keys.

首先对甘蔗收获机的机构进行结构整体设计计算，对轴承，螺栓，键等标准件的选用和对剥叶滚筒间链的重新设计，然后对双联动进行重新设计。

After analyzing the merit and lack of 9I model, the main idea is proposed: to distill some basic topological relations from 9I model, of which the composite topological relations of complex objects are made up. In detail, the composite topological relationships between region and region, line and line, line and region are particularly discussed;(2)Analyze the characteristics and inner relations of cadastral features. According to the expressional model of complex topological relations, the author discovers the possible topological relations between parcels, parcel lines and parcel points. In addition, sum up the general topological relationship rules of cadastral data.(3) Then the topological relations model is extended to the spatio-temporal data. Time in cadastral database and change semantic are discussed. It's redefined that spatio-temporal topological relations is composed of time, location, status and event relation. Spatio-temporal topological relationships can be represented by extended 4I model. Taking cadastral parcels as example, there are different possible spatio-temporal topological relationships between parcels when they are extended, shrunken, split, merged or others. Thus, some deductions are drawn that, for example, if parcels have be coexisting for some time they are impossible to be overlapped. Furthermore, the parents of parcels alternated and their possible change types can be detected by their spatio-temporal topological relationships.(4) Before carrying out the experiment, the calculation method must be designed.

具体研究工作及成果如下：（1）根据点集拓扑理论中与拓扑空间相关的概念，本文对空间的点、线、面进行了重新定义，以区分对象的复杂性；分析了9I模型在表示简单对象方面的优点，以及在表达复杂对象上的不足，阐述了本文的研究思路和解决方案，并以复杂的面面、线线和线面为例详细探讨了复合拓扑关系的表达方法；（2）分析了地籍权属数据和地类数据的内涵、特点和要素之间的联系，根据复杂对象的拓扑关系表达模型，本文讨论了宗地、界址线、界址点之间，图斑、线状地物、零星地类之间可能存在的拓扑关系和形式化表达方法，归纳总结了地籍对象的拓扑关系满足的约束性规则；（3）将拓扑关系的研究延伸到时空领域，从地籍对象的时态性出发，本文阐述了地籍数据中时间的含义和变化语义描述的需要；从时间、位置、状态、事件等之间的拓扑关系方面，重新系统性地进行了时空拓扑关系的定义；研究了一维时间和二维空间的集成表达方式，以宗地、界址线为例，分析了变更前后不同时间区间里可能的拓扑关系，探讨了时空拓扑关系对时空变化操作类型和变化语义的推理方法和意义；（4）为实现空间拓扑关系的查询分析等应用，本文研究了空间拓扑关系的计算方法。

Based on the paleoceanography spatial database, I replanned the paleoceanography databasesystem to figure out the security of the former system. I redivided the system functions anddesigned five function modules: right management module, data import and edit module,calculating year module by standard oxygen isotope curve, data analysis module and spatialanalysis module. The calculating year module adopted the method which compares the oxygenisotope stage borderlines. This method could acquire a more exact result and provide a friendlyinterface to make the consumer operate convenient.

在古海洋空间数据库的基础上重新规划设计了古海洋学数据库系统，解决了原系统数据库的安全性，将系统功能重新进行划分，设计开发了权限管理、数据输入编辑浏览、标准氧同位素定年、数据分析和空间分析等五个系统功能模块，其中标准氧同位素定年模块采用了对比氧同位素期界线的方法，使年代计算结果更加精确，并提供了友好的界面方便用户的操作。

Reperformance is particularly relevant where calculations or measurements have been supposedly checked as a control and the auditor wishes to check that the control actually operated.

重新核算：在计算或测量被作为控制手段之一时，审计人员可重新核算以确定该项控制是否实施

3D-CTM (Coupled Thermo-Mechanical Forming Simulation) software for precision forging process of aero-engine blade was developed. The key technologies of 3D coupled rigid-viscoplastic thermo-mechanical FEM simulation of blade forging process were studied systematically. By using the remeshing method of contracting from the boundary to the inner, new mesh system from old distorted mesh system can be obtained. A method of modifying the position of nodes touching on the die according to its original normal was proposed to avoid "dead lock" problem due to uncontinuity of normal of scatted die meshes. The pseudo-static iterative algorithm was used to simplify the coupled thermo-mechanical computation. In particular, formulations to determine relaxation factor β was established for rigid viscoplastic FEM adopting penalty function method, and an improved cubic factor rapid algorithm derived from these formulations was proposed by combining with the advantage of advance and retreat search method.

采用基于边界构形的内缩法，实现了三维畸变网格的重新划分；提出了初矢修正法对触模节点的位置进行修正，解决了由于离散的模具网格的法矢不连续造成的&死锁&问题；采用准静态迭代法简化了速度场和温度场耦合计算过程；特别是针对减速因子β的选取，建立了适用于三维复杂成形过程刚粘塑性罚函数法有限元三次因子法的计算公式，并结合进退搜索法提出了改进的三次因子快速算法，提高了模拟计算效率和稳定性，在此基础之上，开发了面向叶片精锻过程的三维刚粘塑性热力耦合有限元模拟分析系统(3D-CTM)，系统的可靠性得到了圆柱体镦粗的验证。

The mechanism that the newly woven-in weft drives the receded weft to be beaten tight again during beating-up is analyzed. The process calculating back-side warp angles of receded wefts at tightened position is presented, and then a formula of displacement that receded weft slips from receded position to tightened position is given.

分析在被钢筘打入织口的过程中新织纬驱使回退纬纱重新打紧的机制，说明回退纬纱被重新打紧时其后侧经纱角的计算流程，进而给出了回退纬纱从回退终了位置运动到打紧位置的位移算式。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。