建立了二阶具正负系数的非线性中立型微分方程的一个线性化振动性结果。
Established a linearized oscillation result of the second order nonlinear neutral delay differential equation with positive and negative coefficients.
根据模型约束目标正负偏差变量，计算了各级控制策略实现程度系数。
According to the positive and negative deviations of the obligatory objective, the realized degree coefficients are calculated for the different levels of control strategy.
本文获得了一阶正负周期系数的中立型微分差分方程振动的充分条件。
Some sufficient conditions are obtained for the oscillation of first order neutral differential-difference equations with positive and negative periodic coefficients.
在传统正负温度系数电流叠加的基础上，通过增加一条电流支路，对温度特性进行优化，使用简单的结构得到了很好的温度特性和电源电压调整率。
Compared with the typical current superposition with positive/negative temperature coefficient, the third current branch was added to optimize the temperature features by curvature compensation.
还计算了屋盖结构的分区整体风振系数，确定了屋盖考虑风振系数的正负风压的控制风向角。
Finally the divisional wind-induced dynamic factors are computed, and the dominating wind angles of positive and negative wind pressures involving wind dynamic factors are determined.
通过比较回归方程系数的大小变化、正负变化，研究京沪铁路对经济、社会、资源、环境的影响变化情况。
By index evaluation and empirical analysis, we discuss the pattern and time gradient of Beijing-Shanghai railway's effects on regional spatial structure.
通过比较回归方程系数的大小变化、正负变化，研究京沪铁路对经济、社会、资源、环境的影响变化情况。
By index evaluation and empirical analysis, we discuss the pattern and time gradient of Beijing-Shanghai railway's effects on regional spatial structure.
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