计算

In this paper, the authors introduce a method of calculating transverse sight distance of a random point which belongs to plane curve.

提供了计算弯道平曲线上任意一点的视距横净距的计算方法，并在 Windows操作系统下编制了相应的计算程序。

When blanket is designed, some necessary data, including tritium breeding ratio, irradiation damage ratio, intensity of activation radiation, magnet and thickness of shield, can be get through neutronics calculation. All of that must base on heat load and neutron power flux of first wall and divertor plate. So, the preparative calculation is prformed for that.

在设计包层时，需要进行中子学计算得到氚增殖率、辐射损伤率、活化放射性强度、磁体及其屏蔽厚度的计算、核加热产生率和冷却系统设计和安排的必要数据，而这一切都必须先知道第一壁和偏滤器靶板的中子壁负荷和热负荷；为此作了必要的先行准备计算工作。

The numerical study is carried out for a KVLCC2 tanker. Firstly, for the ship in oblique motion in deep water, determination of the computational domain, check of the grid dependence and selection of the turbulence model in numerical simulation are investigated. The effectivity of the numerical method is validated by comparing the numerical results with experimental data published in literature and the experimental results obtained by oblique towing test in the towing tank of Shanghai Jiao Tong University.

以KVLCC2大型油轮为研究对象，首先对船舶深水斜航运动粘性流计算中计算区域的确定、网格依赖性的检验以及湍流模型的选取等问题进行研究，通过将本文数值计算结果与他人的试验结果和在上海交通大学拖曳水池进行的船模斜拖试验结果相比较，验证了本文数值方法的有效性。

Each program consists of the following three modules: The first one is the program of managing and driving the dialog box, which can adjust the input parameters of the dialog box; The second one is the calculating program, which can calculate the coordinates of the points in the unfolding drawing. The parameters used in the second module are obtained from the first module. The third module is drawing module.

每一段绘图程序都由三个模块构成，第一模块为对话框管理和驱动程序并对对话框输入的参数进行回调；第二模块为计算程序，利用上面回调所得到的参数，再根据上面得出的计算公式，计算展开图上各点坐标；第三模块为绘图模块。

The model was preprocessed to assure the regulation of facets, create the dual graph of it, and then adapt Reeb Graph to extract the skeleton which contains enough information of the model, such as gesture and topological features, to be able to be used as descriptor of 3D model retrieval.

通过对模型进行一定的预处理保证面片的规则，定义面片间距离计算方法，创建模型的对偶图，识别连通分量，在连通分量上应用Reeb图的计算思想抽取原模型的骨架。试验表明，该算法具有较好的计算效果和效率，最终的骨架保存了模型的拓扑连通性以及姿态，可用于基于内容的三维模型检索时的特征描述符。

The main works in this paper are as follows:(1). In this thesis, a new method, continuous linearization model, is constructed for the non-linear dynamic systems. The precision Duhamel integration solution for the linearization equation is also given from the theory of linear differential equation. The calculating results show that the new method can improve the calculation precision greatly. In fact, the truncation error is not limited by this method, it can arrive the precision according to the requirement.

本文的主要工作有以下几个方面：(1)由于非线性项的存在，使得多数情况下难以得到非线性动力方程的解析解表达式，目前常使用数值积分方法来求解非线性动力学方程的解，但常规计算方法的计算精度不很理想，本文提出了含Taylor展开项中高阶余项的非线性动力方程的线性化数值计算方法，构造了瞬态线性化方程，给出了Duhamel积分的表达式。

In this study,we analyze several calculation methods of the production rate of methane in rubbish and make a detailed calculation of the production rate and the cumulate output of methane. On the basis of this study,we use a real rubbish dumping field to calculate the production rate and the cumulate output of methane.

本文比较分析了几种常用的有关垃圾场甲烷气产率计算方法，并详细计算了甲烷的产率及累计产量，在此基础上用一个比较实际的垃圾填埋场计算垃圾填埋过程中甲烷气的产率情况及累计产量，为垃圾填埋场的沼气发电提供了可靠的资料。

Furthermore the formulae for calculation of the magnitude as well as the method for calculation of the elastic coefficient of the rock around the bore hole are derived.

文中还导出了计算地震震级的公式和计算钻孔周围岩石弹性系数的方法，不但解决了上述难题，还使计算大为简化。

Comparing these two results in view of computational efficiency and computational accuracy,it appears that MGM is superior to FDM in solving electrostatic field distribution for the electron optics problem.

通过与目前在场计算中常用的有限差分法进行比较，可以看出多重网格法的计算效率和计算精度优于有限差分法。

And the compare between the result of calculation and that of test shows that the method proposed in this paper can be used to calculate the environmental vibration produced by elevated railroad traffic.

计算结果与实测结果吻合较好，表明本文的计算模型和方法可应用于分析计算高架轨道交通引起的环境振动。

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。