变量

Two types of new Abel differential equation are structured by method of variation replacement, variation position transformation and compound function derivation law.

借助变量替换法、交换变量位置法及复合函数求导法则，构造出两类新的 Abel型微分方程，论证它们的可积性，提供可积的判据，从而推广有关文献的结论，扩大微分方程的可积范围。

Of which is time, or if the abscissa variable is not the current time

也就是说可以联系两个变量，而横轴不必是时间变量，不知道哪位用过

A decoupling generalized predictive control algorithm was presented in this paper. This algorithm was proposed to control the temperature-humidity system of a practical air-conditioning environmental chamber. By introducing absolute humidity as an intermediate variable,temperature and humidity of the system can be decoupled.

为保证多变量控制系统长期安全而有效运行，提出一种解耦GPC控制算法，该算法通过引入绝对湿度作为中间变量，将温、湿度耦合系统进行解耦，然后对解耦后的两个系统进行不同采样周期的GPC控制律设计，给出了该算法的仿真研究结果。

I contact bran-new content,first of all I have to comprehend the principles of all procedures and the action of each variable in them,then find out the distinct manners of reserving variables between the flow procedure and the static stability procedures. It is the most difficult to authorize a connective procedure between the two procedures and link and debug the whole procedures.

我接触的是全新的内容，首先必须理解 QR 算法和各程序的原理及各程序中变量的意义，找出潮流程序和静态稳定程序存储变量的异同，编写潮流程序和静态稳定程序之间的接口程序以及连接、调试所有的程序是本毕业设计的难中之最。

The main idea behind these methods is to take advantage of the known state variables and the theorem of addition for linear system without building up a new Jacobian matrix again. But the equivalent computation of algebraic equation must be performed to get state variables corrections. Accordingly, the speed required to model the contingencies is not fast enough to meet the demand of fast contingency analysis under emergency condition, which is proved by several well-known blackouts caused by flow transferring.

但是，这些算法中的大多数是在实时潮流计算的基础上，利用其中间结果和线性系统的叠加原理，直接求解出事故后的状态变量，都需要通过网络方程求解整个网络状态变量的增量，计算量较大，难于满足紧急状态下快速安全性评估的实时性要求，国内外一系列因静态潮流问题引起的大停电事故就是例证。

We develop his ideas by finding some algebraic invariants under the adjoint actions of the group in addition to the Killing form and give a rigorous proof of the optimality of the one-parameter systems for the symmetry group of the given equations.

本文系统地研究了1+2维非线性发展方程的对称代数，证明了该方程容许一个七维李点对称群，利用Olver提出的方法，详细地建构了1+2维非线性发展方程的一维最优系统，在此基础上我们发展了他的方法，发现了除Killing型之外的其它六个在群伴随作用下的代数不变量，利用这些不变量证明了该最优系统的最优性。

In this paper, the adjoint model is applied to assimilate the temperature and velocity observation data for the optimal initial model state.

在本文的应用中，以流场和温度场的观测资料作为同化资料，以环流模式的初始状态作为控制变量，温度和流速作为状态变量。

The results were analyzed by pluralistic regression analysis to judge the relationship between variable ALB and other variables.

采用多元回归分析，判断其他各变量与应变量ALB间的关系。

A functional unit whose output analog variable is equal in magnitude to its input analog variable but is of opposite algebraic sign.

一种功能部件，其输出模拟变量和输入模拟变量的数值相等，但代数符号相反。

In this paper, the Hestenes-Powell augmented Lagrangian function is again considered, for solving equality constrained problems via unconstrained minimization techniques.

在适当的条件下，我们建立了Hestenes-Powell 增广拉格朗日函数在原问题变量空间上的无约束极小与原约束问题的解之间的关系，并且也给出了Hestenes-Powell 增广拉格朗日函数在原问题变量和乘子变量的积空间上的无约束极小与原约束问题的解之间的一个关系。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。