查询词典 solution formula

To be a contrast, Euler equations were solved in the same condition, and the numerical experiments demonstrated that for such strongly unsteady flows with a high Reynold number, the Euler solution is comparable to the N-S solution.

在同样计算条件下采用Euler方程进行对比性研究，数值实验发现对这类大雷诺数、强非定常性的问题，Euler方程和N-S方程得到的结果相差不大。

Thirdly, on the base of the existent error estimate of elliptical Galerkin projection operator, obtain semi-discrete and complete-discrete error estimates betwent EFG solution and exact solution of parabolic partial differential equation. Semi-discrete error estimate show that the rank of r is accordance with the approximation rank of subspace S_h. Complete-discrete error estimates show that it not only have relation with radius r of domain of influence, but also have relation with the step length of time variable and the way of discrete.Lastly, give typical examples and draw up procedures of MATLAB.

再次，在"椭圆Galerkin投影"算子的误差估计的基础上，对用EFG法解抛物型偏微分方程的EFG解与精确解之间作了半离散和全离散的误差估计，半离散的误差估计表明所给出的误差界限关于r的阶是与子空间S_h的逼近阶相一致的，全离散的误差估计表明所产生的误差不但与影响域半径r有关，而且与离散时间变量的步长τ及其离散方式有关。

If the solution of the equation is existent and unique, the exact solution of the equation is given.

如果该方程的解存在且唯一，文章给出了该方程的精确解的形式表示。

And the sufficient conditions for the existence and stability of semi-trivial periodic solution and positive period-1 solution were obtained.

并得到了半平凡周期解和正周期1解存在和稳定的充分条件。

When the quasi-solution existence theorem of the equation has been proved,the algorithm getting quasi- numerical solution by computer is presented.

在方程的适定性和拟解的存在性都已得到证明的情况下，提出了能通过计算机得到近似数值解的算法，讨论了算法的可行性并进行了误差估计。

Fountain solution of pH to between 5-6, if fountain solution of pH exorbitance, innovativeink, emulsive serious end can delay printing ink drying time and prints to the offeris stick.

润版液的PH值答把持在5-6之间，如果润版液的PH值功矮，油不朱乳化惨轻，功底则会放慢油不朱潮燥工夫，增剧印品背后粘不净。

They are all a kind of exoteric algebra method, that is to say we join persons subjective information in the solution process to seek the solution which needs.

它们都是一种开放的代数方法，即在求解过程中加入人的主观信息，来寻找所需要的解。

The main contents of this course include: introduction, extraction of root from an equation, numerical solution of a system of linear equations, interpolation method, the method of fitting of a curve, numerical integration and differentiation, numerical solution of a differential equation, one-dimensional search method of extreme value problem, etc.

本课程包括以下内容：绪论、方程求根、线性方程组数值解法、插值法、曲线拟合法、数值积分与数值微分、微分方程数值解法、极值问题的一维搜索法。

The method is realized by that polyether ether ketone is added into concentrated sulfuric acid to carry out sulfonation reaction, thereby obtaining sulfonated polyether ether ketone, then the sulfonated polyether ether ketone is dissolved in organic solvent, N, N (1)-Carbonyldiimidazole is added to stir for one to three hours, coupling agent is mixed for stirring the reaction for 1.5 to 4 hours, then inorganic crosslinking agent is mixed to react under the temperature of 50 to 80 DEG C. Proton conductors are mixed to continue getting the mixed solution of the sulfonated polyether ether ketone or the inorganic crosslinking agent or proton conductors under the temperature. Finally the proton exchange membrane for a direct methanol fuel cell is obtained by that the mixed solution of the sulfonated polyether ether ketone or the inorganic crosslinking agent or proton conductors is/are processed through membrane forming, drying and exuviation.

该方法首先将聚醚醚酮加入浓硫酸中进行磺化反应得到磺化聚醚醚酮；然后将磺化聚醚醚酮溶于有机溶剂中，加入N，N′-羰基二咪唑搅拌1～3小时后加入偶联剂搅拌反应1.5～4小时，再加入无机交联剂在50～80℃下反应，然后加入质子导体继续在此温度下反应得到磺化聚醚醚酮/无机交联剂/质子导体的混合溶液；最后将磺化聚醚醚酮/无机交联剂/质子导体的混合物溶液成膜，干燥，脱膜即得到所述的直接甲醇燃料电池用质子交换膜。

Through the main factor solution of the model was solved, and also analyzes the general model, also presented its solution.

通过主因子法求解了模型的解，然后还分析了一般的模型，也给出了其解。

Metrorrhagia is also gynaecological problems of common diseases.

崩漏是妇科常见病也是疑难症。

WordFTP gives you the convenience and timesaving you need.

wordftp让您的方便和省时您所需要的。