计算

The three nodes triangle or the four nodes quadrilateral, especially the trapeziform, are commonly used to generate the arbitrary computational mesh.

计算域初始条件的处理也很重要，初始条件包括计算网格的平均高程、计算网格的糙率系数及初始水深。

Having analysed the localization of several typical methods for traveltime computation(finite difference method,linear interpolation method and so on) in briefly,authors put forward a method for traveltime computation based on nonlinear interpolation ,and deduced its calculation formula.

在简要分析目前最典型的几种地震波旅行时计算方法(如有限差分法、线性插值法等)局限性的基础上，提出了一种基于非线性插值的地震波旅行时计算方法，并推导了其计算公式。

Using the dynamicalsymmetry and considering the off-diagonal term of rovibrational interaction, weobtained firstly the expression of rotational energy levels similarly to thecommonly used term value equation in spectrum analysis. By using the formula,the rotational levels of different vibrational transition for linear triatomic molecules〓, HCN, OCS,〓 and its isotope species, which are on the electronic groundstate and the first electronic excited state, were analyzed. The obtained rotationalconstants accord with the ones from other calculation methods very well.

文章还利用动力学对称性并考虑到振转相互作用算符的非对角项，首次得到了类似于光谱分析计算中常用的项值方程的振动能级的表达式，并用其计算了〓、OCS、〓、HCN等线形分子在电子基态和第一电子激发态若干振动跃迁的转动能级，所得转动常数与其它计算方法所得值符合得相当好。

The analytical calculation of the solar collecting performance of Trombe wall which use one-dimensional thermal network have been presented.

本文借助计算程序采用一维热网络模型对特朗贝墙体的集热性能进行了分析计算，计算中考虑了被绝大多数同类研究忽略的空气间层内玻璃盖板侧的自然对流换热，以及玻璃盖板与吸热面的辐射换热。

The real and specific problems that underly the Grid concept are coordinated resource sharing and problem solving in dynamic, multi-institutional virtual organizations.

网格概念中体现出来的灵活、按需的异构资源集成的思想非常符合人们对更高层次资源共享的需求，因而在分布式超级计算、高吞吐率计算及数据密集型计算等领域得到接受和发展。

The following table details the remaining contractual maturities at the balance sheet date of the Group's and the Company's non-derivative financial liabilities, which are based on contractual undiscounted cash flows (including interest payments computed using contractual rates or, if floating, based on rates current at the balance sheet date) and the earliest date the Group and the Company can be required to pay.

下表详细列载于结算日本集团及本公司非衍生金融负债之剩余合约期限，该等期限乃根据合约未贴现现金流量（包括按合约利率计算或按结算日之即期利率计算之利息付款）以及本集团及本公司可能被要求付款之最早日期计算。

According to different types of abnormal pressure,computation model for quantitative control on the abnormal pressure was set up to meet the needs of efficient and safe drilling in oil-gas fields.Some important parameters were calculated that include reasonable shut-in time,maximum flowing yield and the best flowing time of the injection wells,and reasonable bottom hole flowing pressure,extra oil production and stimulation moment of the production wells.The quantitative computational methods of them were derived.Three methods were applied to one undrilled adjustment well T1 in certain oil-gas field achieving quantitative control to the abnormal pressure in the adjustment well.

考虑到油气田高效、安全钻井的需要，依据不同的压力异常类型，建立了定量控制异常压力的计算模型，确定了注水井合理关井停注时间、最大放溢量和最佳放溢时机以及生产井合理井底流压、增产量和增产时机等参数，给出了计算公式，推导出了注水井最佳关井停注时间、注水井最佳放溢量和生产井合理的增产量的定量计算方法，并通过某油气田的一口待钻调整井(T1井)对3种方法进行了验证，实现了对调整井异常高压的定量控制。

Shim current calculation When shim coils are excited by appropriate current, they can generate correcting magnetic field to compensate the imaging magnetic field unhomogeneity. Based on the indirect calculation method, we proposed a novel iterative optimization algorithm to calculate shim current. Because there is a direct proportion relationship between FID signal and magnetic field homogeneity, we use the intensity of FID signal as feedback information to the calculation. Shim current can be worked out in less than 3 minutes. This satisfied the requirement that active shimming should be performed in real time.

5匀场电流计算对匀场线圈施加适当的电流后才能产生校正磁场消除成像磁场的非均匀分量，本文在匀场电流间接计算方法的基础上，利用磁共振成像原理中磁场均匀性与系统FID信号强度成正比的关系提出了一种电流迭代优化算法，将系统FID信号强度的变化作为反馈信息，能够快速计算出匀场电流对成像磁场进行补偿校正，平均耗时不到三分钟，满足磁共振成像系统对有源匀场的实时性要求。

Shim current calculationWhen shim coils are excited by appropriate current, they can generate correcting magnetic field to compensate the imaging magnetic field unhomogeneity. Based on the indirect calculation method, we proposed a novel iterative optimization algorithm to calculate shim current. Because there is a direct proportion relationship between FID signal and magnetic field homogeneity, we use the intensity of FID signal as feedback information to the calculation. Shim current can be worked out in less than 3 minutes. This satisfied the requirement that active shimming should be performed in real time.

5匀场电流计算对匀场线圈施加适当的电流后才能产生校正磁场消除成像磁场的非均匀分量，本文在匀场电流间接计算方法的基础上，利用磁共振成像原理中磁场均匀性与系统FID信号强度成正比的关系提出了一种电流迭代优化算法，将系统FID信号强度的变化作为反馈信息，能够快速计算出匀场电流对成像磁场进行补偿校正，平均耗时不到三分钟，满足磁共振成像系统对有源匀场的实时性要求。

Present,a few of private computing schemes were proposed by some researchers,but oversized complexity,low production,unweighable securirty level,narrow applicable scope and so on factors restrict their applications,and their implementations are very less.

目前交集的保密计算的方案已有些人提出，但大多受到计算复杂度过大，计算效率低下，安全程度无法衡量，适用范围狭窄等因素的制约，少有可实际应用的方案及其实现。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。