unit-control error

By improving classical monotone iterative technique, an elementary approximation process and correspondent error estimate are given for classical Emden equations in unit ball. This elementary approximation process starts with the constant function, and is feasible and efficient.

通过改进传统的单调迭代方法，求出了单位球上经典Emden方程的初等逼近程序和相应的误差估计，初等逼近程序是从常值函数开始的，并且是可行和有效的。

It is an effective method in engineering that error mode of open-loop fiber optic gyroscope unit is established by test.

用试验法建立光纤陀螺组合的误差模型，是工程上行之有效的方法。

The improved BP algorithms based on adaptive parameters adjustment and error contracting gradually are presented, which are applied successfully to fault diagnosis of steam-turbine generator unit.

提出了自适应学习率及动量因子的BP神经网络算法和误差逼近度渐近收缩学习的BP神经网络算法，并将其应用于汽轮发电机组振动故障诊断与识别。

This paper mainly analyses the influences that tax-system reforms ( including reforms of value-added tax and enterprise income tax) will exert on the government revenue by building Error Correction Model with E-G two step method through unit root test and co-integration test.

本文通过对变量的单整和协整检验，采用EG两步法建立协整模型和ECM模型，实证分析了税制改革，主要讨论增值税和企业所得税改革，对我国财政收入的影响。

The investigation shows that the evaluation factors for the hidden layer of a feed-forward neural network are composed of the dimensions of representation space and target space, the number of hidden units, and the error compensation efficiency of each hidden unit.

结果表明：表示空间与目标空闽维数、隐单元数目以及每个隐单元的误差补偿效率决定了前馈神经网络隐层的评测因素。