计算

Depending on the required reactive optimal control ask for power flow, this inquiry method is used in alternate iterating algorithm to calculate flow. By this method, there is not special need to deal numbering nodes of line, and there is not effect to program if add or reduce number of nodes.

针对配电网无功优化控制对潮流计算的要求，将上述这种节点链表查询法运用到交替迭代潮流计算方法中来，这种经过节点链表查询的潮流计算方法不需要进行特殊的线路编号，而且任意增减节点数对程序没有影响。

The linear extrapolation technique was the most practical and suitable method because of its relative high correlation with a wide range of chlorophyll content, relative simple algorithm, relative high sensitivity to chlorophyll at high or low content and application to more wider bandwidth spectra.

四点线性内插法计算的红边位置往往偏大，最大一阶导数法与叶绿素含量的关系存在着明显的不连续性，拉格朗日内插法、倒高斯模型法在一定程度上存在着对高叶绿素含量的饱和现象，多项式拟合法对拟合波段区间、最高项次及光谱分辨率等比较灵敏而导致结果不够稳定，而线性外推法计算出的红边位置对叶绿素含量最为敏感，预测的准确度最高，且计算相对比较简单，并能适用于较宽波段的遥感数据。

The linear aerodynamic forces of airship hull were calculated in terms of Munk airship theory. The linear aerodynamic forces of airship hull were calculated by Allen viscous cross flow theory. The fins linear aerodynamic forces were calculated by approach of panel method.

根据势流理论对飞艇艇身线性气动力进行分析计算，由于飞艇艇体是旋成体，故根据Allen的横流阻力理论对其所受的非线性气动力进行计算；尾翼的线性气动力采用有限基本解方法进行计算，非线性气动力用Polhamus-Lamar吸力比拟方法估算。

In order to reduce the computing time, a method to divide the load curve into sections and to form the related computation loads and ...

为减少计算时间，还提出了一种将负荷曲线分段并形成相应的计算负荷和持续时间的方法，该方法可明显地减少计算时间，而其所带来的误差不影响重构的最终结果

The basic solutions were defined based on local coordinate system, and then the coordinate transform relation between the static and dynamic characteristics of magnetic bearing with arbitrary structure and the basic solutions were deduced.

研究了电磁轴承静动特性的计算方法，定义了基于局部坐标系的电磁轴承静动特性基础解，推导了任意磁极结构的电磁轴承动力学特性与基础解之间的坐标转换关系；在此基础上提出了利用基础解计算任意磁极结构的电磁轴承静动特性的方法，该方法简捷、快速，是电磁轴承静动特性计算的一套规范化、标准化的方法。

The assay obtained the results in aspects below:1 、 customing the system for designers, building new style of lines, predigesting and combing the commands, and writing some simple but useful programs for the real needs of design.2、 according to the drawing standard of Water and Waste Water System, making equipments, instruments, accessories which were often used to be a block, then building magic lantern menu which can be easily used.3、 setting up a Aided System of calculating which remedied the lack of calculation function of AutoCAD.

开发了针对建筑给排水设计的辅助计算系统，弥补了AutoCAD本身不具备计算功能的缺憾。本系统为设计人员提供了给水、排水、消防、热水等系统的水力计算，并能进行水箱、化粪池、消火栓的选型。

Based on the analysis of calculation theories on magnetic field and torque of permanent magnetic gears, the characteristic curve of torque-angle are calculated with the use of Ansoft electromagnetic calculation software.

本文在分析永磁齿轮磁场和转矩计算理论的基础上，利用Ansoft 电磁计算软件计算了平行轴永磁齿轮的矩角特性曲线，并研究了恒定负载下永磁齿轮的转速波动情况。

The main characteristics of thenew generation of network computing are large-scale, decentralized control, dynamic,and autonomous. Since publish/subscribe systems have the advantages of loosecoupling, anonymity, many-to-many communication and scalability, they have becomeimportant infrastructure middleware platforms support for the new generation ofnetwork computing.

新一代网络计算是以大规模、分散控制、动态性、自治性和松耦合为主要特征的分布式计算，而发布／订阅系统具有松耦合、匿名、多对多通信和可扩展的特点，已成为支持新一代网络计算的重要基础中间件平台。

The main work and innovation1 In general , a image compression method has different effect to different image . Some are fit for image which has much high frequency . Some are fit for image which has much low frequency .This paper analysis the applicability of fractal algorithm . In this dissertation , an improved algorithum is given . The basic algorithum without eight change and the joint use of quantitative coding , The compression ratio and PSNR can be adjusted , and it can get more quickly speed of coding .2 To a group of exact fractal code , the decoding image can be any resolution .With this characteristic ,choose the proper domain block and range block,this paper get an algorithum which can get higher decoding PSNR and speed than the basic fractal algorithum.3 Give a new method to calculate the scale factor . The calculation of basic algorithum is complex and enormous . The factor of scale is an important variable of the basic algorithm. Now there are two methods to calculate the factor of scale .A new method was given to calculate the factor of scale. The calculation load and complexity are reduced by the new method. Compared with the basic algorithm , the method can reduce coding time.4 The basic fractal algorithum is based on the Collage theorem and contraction mapping theorem . A mathematic model based on basic fractal algorithum is given .

本文的主要工作及创新点主要包括以下几点：1一般情况下，一种图像压缩的方法对不同特点的图像，压缩效果会有所不同，本文利用分形压缩编码对不同特点的图像进行编码，分析了分形编码对不同图像的编码适用性，利用去掉8种变换的分形编码算法与简单的均匀量化编码方案相结合，得到了一种可以调节压缩比与解码质量的分形编码方案，该提高编码速度6倍以上。2分形编码的特点之一是分形解码的分辨率无关性，即对于一组分形编码可以将其解码到任意分辨率下，本文利用分形编码的这一特点，结合不同的量化编码方案，选择合适的定义域块与值域块及适当的编解码分辨率，得到了一种提高解码质量，编码速度提高12倍以上的加速算法。3比例因子是基本分形算法中的一个重要变量，目前有两种计算比例因子的方法，文中给出了一种新的求比例因子的方法，该方法简化了求比例因子的计算，从整体上减小了基本分形算法的计算量，简化了算法4分形压缩的数学基础是不动点定理与拼贴定理，本文根据基本的自动分形编码方法，建立数学模型对其进行推导，得到了用普通数学的极限理论解释分形编码的数学表达式，从而对由基本分形编码得到的解码图像中的像素点的值给出了确定的表达式。

In order to find a powerful assistant computation tool for further analysis and design of multilayer optical coatings,an analytical model is mathematically established for accurate calculation of the first and second derivatives of the spectral coefficients of multilayer optical coatings with respect to layer parameters like thickness,real refractive index and extinction coefficient. It is based on the matrix theory of calculating the spectral coefficients of multilayer optical coatings and is achieved by perfectly using the trace operation of matrix.

为了寻找一种膜系深入分析与设计的有力辅助计算工具，从光学薄膜光谱系数的矩阵计算理论出发，基于对矩阵求迹运算的巧妙运用，从数学上建立了准确计算膜系光谱系数关于膜层几何厚度、实际折射率和消光系数等膜层参数的一阶和二阶偏导数的解析模型。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。