功

For this purpose, the minimum modulus eigenvalue of power flow Jacobian matrix of AC/DC power system is researched; by means of the sensitivity index of nodal voltage to reactive power variation and combining with participating factor, the bus or region where the voltage instability could happen most possibly are judged to provide decision-making foundation for the configuration of reactive power compensation device in power system.

该方法研究了交直流系统潮流方程雅可比矩阵的最小模特征值，以节点电压对无功功率变化的灵敏度为指标，结合参与因子，判断全电网中最有可能发生电压不稳定的节点或者区域，从而为系统无功功率补偿装置的配置提供决策依据。

While Falun Gong representatives failed to meet the mayor or vice mayor, Falun Gong members just performed an instrument music concert on the square opposite to the nomarch's mansion and then forced into the parade, resulting in prohibition by the police.

法轮功代表要求与市长、副市长见面，但未受到理睬。4月29日，法轮功索性在省长官邸对面的广场现场表演器乐合奏。继而又强行参加游行活动，结果遭到现场警察的查封。

The joint effect of active and reactive power on the voltage stability of a typical power system was considered by analysing the two parameter bifurcation problem related to nonlinear oscillation phenomena. Numerically, as the active power P1 increases, the Hopf points get closer and eventually coincide at P1=1.455 43 the cyclic fold curve gets closer and closer to the Hopf curve and finally intersects the Hopf curve at a singular point the period-doubling points also get closer and finally coincide at P1≈0.65. The stability behaviour is pre-determined using the normal form approach near the limit point of the Hopf curve. Hence, in the power system attention should be paid to both the consumption of active power and the decrease in the reactive power to prevent nonlinear oscillations. A controller can be designed to absorb some active power and to avoid the nonlinear oscillations that damage the system components.

针对一个典型的单机无穷大电力系统，通过分析系统的双参数分岔的非线性振荡现象，综合考虑有功和无功功率对电压稳定性的影响数值分析表明，随着有功功率的增加，电力系统的Hopf点越来越靠近，最终合为一点在P1=1.455 43处同时圈折cyclic fold 曲线也越来越靠近Hopf曲线，并在Hopf曲线的稳定与不稳定临界点处与Hopf曲线相交倍周期分岔点也随着越来越靠近，最终在P1≈0.65 合为一点应用正规形理论方法，初步确定了Hopf曲线极限点附近的稳定性态因而，电力系统应注意让负荷利用有功功率，减少无功功率的产生以防止非线性振荡另外，可以设计一个稍微吸收网络的有功功率的控制器，以避免因周期振荡而造成电力系统仪器的损坏或电压崩溃

To check the validity of the model,a typical mechanism of nonrigid links with variable gas pressure,the internal combustion rock drill of YN23 type, was calculated and measured.

根据含变气压非刚性联接件机械输入功至输出功的输送路线，介绍了计算机数值模拟在效率计算方面的研究进展，着重讨论了其效率计算原理、各组成部分的效率计算方法和计算结果。

With the rapid development of power system and the gradual opening of electric power markets, the traditional method based on the off-line data and the mode controlled by VQC separately can not meet the demands of the modern electric corporation in evidence.

随着电力系统的飞速发展和电力市场的逐步开放，传统的基于离线数据的无功电压优化手段和依靠无功电压综合控制装置的变电站分散控制方式显然已经不能满足现代电力企业的要求。

However, in the initial design, the all around in that contains the routines on the dodge, the fact also includes a downward dodge, that is lodged in places!

但在最初的设计里，在这包含了前后左右上的轻功套路里，其实也包含了向下的轻功，即遁地！

In order to solve the problem that the Multi-objective Evolutionary Algorithm used in reactive power optimization currently has the shortcomings of time consuming computation, poor orientability and applicability,a ε-omination based MOEA was applied in reactive power optimization.According to different significance among objective components, an adaptive ε-omination was created and relevant post-evaluation fuzzy logic controller was established to select solution.

针对多目标无功优化方法存在寻优时间过长，优化结果针对性不强以及难以实现自动实时控制的问题，将一种基于ε-支配域的多目标进化算法应用到多目标无功优化的求解中，根据多目标模糊评价函数各目标分量的不同重要程度，构建出自适应ε-支配域，生成相应的后评价模糊控制器以实现优化结果的智能选择。

The analysis results show that PAPF is effective for parallel resonance damping, but can not damp series resonance when capacitor current is not included in the detecting current. And when capacitor current is included in the detecting current, PAPF is prone to be unstable and can not damp parallel and series resonance.

分析表明，由于无功补偿电容器的影响，传统控制策略下的PAPF对系统谐振的抑制效果不理想，同时当检测的负载电流中包括无功补偿电容器电流时，系统还有可能出现不稳定的现象。

In the same way, the reason why the British politicians now in England find it difficult to govern Ireland and India, is because modern Englishmen today do not know that it was not British democracy, the British Constitution or Parliamentarism, but the British or English civilization with the "gentleman" and its ideal; in short, that it was not the British mob, but the British or English gentleman who built up the great British Empire of today. But that is neither here nor there.

同样，不列颠"无名战士"，新近葬入英国西敏寺，驱走恶魔，封建德国狂怒之条顿人，目今英国之不列颠政客，之所以觉爱尔兰及印度难治者，盖因今日现代英国人不知，今日大不列颠帝国之所以成者，既非不列颠之民主、亦非不列颠之政体或议会制度，而乃不列颠或英格兰文明蕴有"温良"及其理想之故也；简言之，今日大不列颠帝国之所以成者，非不列颠群氓之功，而乃不列颠或英格兰温良秉性之士之功也。

It verifies that the total three phase instantaneous power cannot remain constant in circuits with distort and unbalanced source.

文中所定义的相间流动的无功电流、三相电源与三相负载间流动的无功电流以及有功电流之间具有两两正交的关系。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。