Phoria at distance and near, positive and negative relative accommodation ( NRA/ PRA), accommodative convergence and accommodation response were measured. Results Response AC/ A ratio of P.M. 眼动参数测量包括远、近距隐斜、调节反应、调节性辐辏及正、负相对调节,对每组的反应性、计算性AC/A等眼动参数进行分析比较。
But in the period of convective developing, it comes to single mode pattern, which is with positive vorticity, convergence and upward current in low level, but negative vorticity, divergence and downward current in upper level nearby the convergence line. 当对流发展较强时演变为单一模态分布,即辐合线附近低层为正涡度辐合气流上升区,而高层为负涡度辐散气流下沉区。
In Chapter 3, some nonmonotone PVT algorithm s are constructed and their convergence theorems are demonstrated. A second-order PVT algorithm for solving nonconvex unconstrained optimization problems, based on negative curvature directions and quadratic curve searches, is proposed, and its convergence theorem is proven. 在第三章中,首先给出几种非单调PVT算法及其收敛性定理,然后利用负曲率方向和二次曲线搜索,给出了非凸无约束规划的二阶PVT算法,证明了算法的收敛性定理。
Aeromagnetic anomalies mainly show characteristics of positive magnetic anomalies of two large areas and negative magnetic anomalies of one large area. The general figure of anomalies is in shape of a big trumpet with convergence from west to east. 航空磁力异常特征主要反映为两大片正磁异常及一大片负磁异常,其总的形态呈一个大的喇叭状,西部张开,东部收敛。
This paper discusses the negative proposition of Theorem Leibniz and presents another proving method of absolute Convergence Theorem. 本文探讨了Leibniz定理的否命题情形,并给出绝对收敛性定理的另一种证明方法。
An algorithm using negative curvature directions and its convergence 一个使用负曲率方向的算法及其收敛性
Because the contribution of negative frequency is neglected in the algorithm, long convergence process exists when calculating phase difference between two signals of Coriolis mass flowmeter using sliding Goertzel algorithm. 采用滑动Goertzel算法计算科里奥利质量流量计信号的相位差时,存在较长的收敛过程,其主要原因之一是忽略了负频率成分的贡献。
With the Wolfe line search, the global convergence of the conjugate gradient methods with the negative β k is obtained. Further, the global convergence results of the dependent PRP and HS conjugate gradient methods are proved using the Wolfe line search. 第三章还在一般Wolfe线搜索下得出了带负参数的一般共轭梯度法的全局收敛性,从而使得以往文献中的相关PRP方法的收敛性结果都包含其中,并对相关HS算法进行了讨论。
Aiming at the shortcomings of trust region method, we proposed an algorithm using negative curvature direction as its searching direction. The convergence of the algorithm was given. 针对模型信赖域方法中搜索方向存在的不足,提出了按负曲率方向进行搜索的模型信赖域算法,并证明了算法的收敛性。
A necessary and sufficient condition of existence of final positive and negative solution to the difference equation by using Lebesgue convergence theorem and construction of function is obtained. 利用Lebesgue收敛定理和函数构造法证明了非线性差分方程存在最终正解、最终负解的充要条件。
This negative approach will reduce the convergence speed of the adaptive filtering, and may lead the algorithm failure when the echo path changed. 这种消极的方法降低了自适应滤波器的收敛速度,并且在回声路径发生改变时可能导致算法的失效。
It could extract positive and negative association rules at the same time. The results of experiments show that the algorithm in this paper has a fast convergence speed. 实验表明,该算法收敛速度快,并且得到有效的关联规则。
As for the ant colony optimization ( ACO), thisdissertation proposes the dynamic positive feedback and negative feedback approach to achieve dynamic divergence and convergence. 如蚁群算法就提出动态正反馈和动态正负反馈来改进发散性和收敛性。
Their Discourse functions are all divided into three categories: positive response function, negative response function, and the convergence function, each function is also under different levels of division. 将其话语功能分为三类:积极应对功能、消极应对功能、话语衔接功能,各功能下又作了不同等级的划分。