内原

First of all,we have given some of the basic concepts of differential equations, described the constant coefficient linear ordinary differential equation solution, for a class of second-order variable coefficient linear ordinary differential equation initial value problem, an approximate solution, the method is first unknown function of a definition for N sub-interval, and then in between each district within a constant coefficient ordinary differential equations similar to the replacement, the solution has been the problem as similar to the original analytical solution, and then gives a detailed second-order change order coefficient of linear homogeneous ordinary differential equation solution examples, the examples of the approximate method proposed in this paper is valid.

首先给出了微分方程的一些基本概念，讲述了常系数线性常微分方程的解法，针对一类二阶变系数线性常微分方程初值问题，提出了一个近似解法，本方法是先对未知函数的一个定义区间作N等分，然后在每一个小区间内用一个常系数常微分方程近似替换，所得到的解作为原问题的近似解析解，随后详细给出了一个求二阶变系数齐次线性常微分方程的解的实例，该实例说明本文提出的近似方法是有效的。

The level of the expression was correlated with clinicopathological factors. Results MRP1 was mainly expressed on carcinoma cell membrane and cytoplasm, and in the positive expression cell, the membrane and cytoplasm was huffy.

结果 MRP1蛋白主要是在细胞膜和细胞浆内表达，MRP1蛋白在大肠癌原发灶组、正常组织组的阳性表达率分别为49.1%(26/53)和15.1%(8/53)，两者有显著性差异(P.01)。

However, the solutions of the Cauchy problem of the nonlinear hyperbolic system generally develop singularities in finite time even if the initial data are small and smooth.For this reason, solutions must be found in the space of discontinuous functions. Therefore, one can not directly use the classical analytic techniques that predominate in the theory of partial differential equations of other types. Instead, we construct approximate solutions via the singular perturbation methods. By using the compactness of the approximate solutions, we can obtain the existence of the solutions of original system.

然而一般而言，即使是在初值很小且光滑的情况下，非线性双曲型守恒律的Cauchy问题的解在有限时间内也会出现奇异性，为此，我们必须在不连续函数空间中寻找上述问题的解，因此对这类问题的研究，我们也不可能直接利用在其它类型的偏微分方程中占主导地位的解析方法来解决问题，而是通过奇异扰动法构造近似解，由近似解的紧性得到原问题解的存在性。

Analyses of loci in the π plane and meridian line s show that the parabolic and hyperbolic type failure envelopes have no influences on the shape of the.

对改进式所作的π平面极限线和子午线分析表明，采用抛物线和双曲线形强度包络线基本上不会改变原准则在π平面上的极限线形状，但子午线由直线改为曲线，极限面在主应力空间内分别为抛物面和双曲面，其锥顶距坐标原点也比采用线性强度包络线的要小。

In the range of neutral pH, the effect of the imidazole amount on the modification of collagen was most remarkable, reversely, the effect of temperature was little.

实验结果表明，乳酸溶液中不能发生的交联改性，能够在醋酸溶液中很好的进行，在中性pH条件范围内，咪唑的用量对胶原蛋白改性的影响最大，温度的影响很小。

The infeasibility detection and handling strategy is discussed while the prime-dual interior point method is used.

文中结合原对偶内点法的特点提出了不可行问题的探测和处理方法，并用模型系统和华东电力系统的实际数据进行了验算。

Based on improved genetic algorithm and primal-dual interior point algorithm, a hybrid reactive power optimization algorithm is proposed.

基于改进遗传算法和原对偶内点法提出一种求解无功优化问题的混合算法。

Spot Price based on the model of optimal flow and the primal-dual Interior point algorithm are presented in this paper.

介绍了基于最优潮流的实时电价模型以及原对偶内点算法的基本原理。

This paper presents a new real-time voltage/reactive power control algorithm based on primal-dual interior point method.

摘 要：提出了一种充分利用稀疏技术的基于原—对偶内点法的电压无功实时优化控制算法。

The method's disadvantage is that the discrete variables can't be solved in primal-dual interior point method.

但原对偶内点法在求解优化问题时，无法有效解决离散变量的问题。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。