查询词典 acceleration of convergence

And, with its "two-pronged" and "3C convergence" strategies, Lenovo is right in the thick of it.

在早期IBM PC和联想员工的努力下，一个创意改变了整个世界。

Based on the convergence theory in the documents about economic growth, the thesis makes the matrix, one kind of the methods about Spatial Econometrics, according to the spatial geographical ubiety between provinces in order to analyses empirically the difference about the economic growth between areas in the mainland since the open-door policy, especially the year 1990 from which the economy of China grows rapidly.

本文以经济增长文献中有关收敛性理论为基础，运用根据省际间的空间地理位置关系建立空间关系矩阵的空间计量经济学方法，对中国改革开发以来，特别是经济高速发展的1990年以来中国大陆地区的地区经济增长差异进行实证分析。

Therefore, in the limiting case envisaged by the model unconditional convergence, where differences in productivity levels arise solely from transient "shock", productivity growth rates in any period would be found to vary inversely with their respective initial levels, so that laggards would tend to catch up with the leaders and differences in levels eventually would be eliminated.

国家倾向于追赶上领导者并且它们之间的差异将最终被消除。

Title :The Stylized Facts and Preliminary Tests on the Regional Income Disparityin China,1952-2002Abstract:Based on two recent sets of data on economic development in the Chineseprovinces over the 1952-2002period ,the paper generalizes several stylized factsand investigates the impact of structural change on the dynamics of regional disparitiesin China.We analyze the industry structure and property right structure in thelight of an econometric analysis of unconditional and conditional β-convergence.

此文运用1952－2002年省级经济体数据归纳出基本事实：1952-78年地区差距扩大趋势由直辖市、工业重镇与其他地区的收入差距扩大造成；1978-84年农业改革导致显著的绝对收敛；1985-89年收入差距缩小由直辖市与其他地区的差距缩小驱动；1990年至今收入差距扩大；大跃进、三线建设与邓南巡等政策冲击产生强烈扰动；整个时期只有中部内部收入差距持续缩小；1974年以后发生"收敛俱乐部"现象。

The global convergence properties of the conjugate gradient methods for the unconstrained optimization problems are studied in this dissertation.

本文集中对求解无约束最优化问题的有效方法—共轭梯度法的全局收敛性进行分析。

The motion control problems of uncertain robots is studied in this paper The main work consists of six parts 1 A novel robust outer-loop design method is proposed for the robot manipulators with constructed and unconstructed uncertainty The global convergence of the closed-loop system and the uniformly ultimate boundedness of tracking error when the continuous control law is used are proven The proposed method has better accuracy than the existing method.

本文研究具有不确定性的机器人的运动控制问题，主要工作由六部分组成：一、对具有结构型和非结构型不确定性的机器人提出了一种新的鲁棒外环设计方法，闭环系统的全局收敛性和连续化鲁棒控制器的终结有界性得到了证明，比已有方法有更好的跟踪精度。

The global convergence of the algorithm is proven Simulation results show the algorithm is feasible 3 A robust adaptive control method is proposed for the robots with constructed and unconstructed uncertainty The feedback gain of the controller is updated according to the estimated value of a function of uncertainty bounds The resultant control torque is smooth signal so that the chattering problem is avoided.

三、对具有结构型和非结构型不确定性的机器人提出了一种鲁棒自适应控制方法，其特点是根据不确定性界的函数的估计值直接修正反馈增益，所导出的控制力矩始终是光滑的，既能满足指出的跟踪精度，又不存在抖动问题。

Using the asymptotically compact theory of Anselone' and Stepleman' theorem, the existence, the unicity , the convergence and the error estimate with O(h3) of the discrete equations are shown....

并借助Anselone的渐近紧收敛理论和Stepleman定理，证明了离散方程组的解存在性、唯一性、收敛性和精度阶O(h~3)。使用Ostrowski的不动点定理，提供了三阶收敛的迭代法。

By using the uniform convergence and invexity the continuity of the approximating set of Pareto solutions of the problem is obtained.

在一致收敛性和不变凸性的条件下得到了近似有效解集的连续性。

A new scheme was presented to design subdivision curves by introducing three control parameters in the subdivision process. The sufficient conditions of the uniform convergence and Ck continuity of this subdivision scheme were analyzed.

通过在曲线细分过程中引入三个参数，给出一种新的细分曲线构造的算法，并利用生成多项式等方法对细分法的一致收敛性、Ck连续性进行了分析。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。