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Numerical results for the original stochastic Duffing-van der Pol system obtained separately by the Mento-Carlo method and the Chebyshev polynomial approximation are compared to show the effectiveness and efficiency of the latter method in solving the nonlinear dynamical problems of system with bounded random parameters.

数值模拟结果显示，Chebyshev正交多项式逼近法是研究含有界随机参数的耦合非线性动力学系统的一种有效方法。

The stochastic Bonhoeffer-Van der Pol system is first transformed into an equivalent deterministic system using the Chebyshev polynomial approximation, so that the problem of controlling stochastic chaos is reduced to the problem of controlling deterministic chaos in the equivalent system.

首先运用Chebyshev多项式逼近的方法，将随机Bonhoeffer-Van der Pol系统转化为等价的确定性系统，使原系统的随机混沌控制问题转换为等价的确定性系统的确定性混沌控制问题，继而可用Lyapunov指数指标来研究等价确定性系统的确定性混沌现象和控制问题。数值结果表明，随机Bonhoeffer-Van der Pol系统的随机混沌现象与相应的确定性Bonhoeffer-Van der Pol系统极为相似。

In clinical. acetylcholinesterase inhibitors reduce the breakdown of synaptic acetylcholine, have been modestly effective in improving the cognitive deficits of Alzheimer's disease.The goal of this work is to determine enzyme kinetics and mechanisms of acetylcholinesterase and butyrlcholinesterase inhibition by five cardiovascular drugs, lovastatin, simvastatin, amlodipine besylate, nifedipine, and hydralazine hydrochloride, and two benzodiazepines, diazepam and chlordiazepoxide hydrochloride. All drugs in this study are reversible mixed-type inhibitors of acetylcholinesterase and butyrylcholinesterase. The pKi values for acetylcholinesterase and butyrylcholinesterase inhibition by the cardiovascular drugs are linearly correlated with the molecular weights of the drugs with the slopes of 0.005 and 0.0021, respectively. Therefore, van der Waals' interactions between acetylcholinesterase and the cardiovascular drugs are stronger than those between butyrylcholinesterase and the drugs. This is probably due to a smaller active site gorge and a more significant peripheral anionic substrate binding site of acetylcholinesterase than those of butyrylcholinesterase.

本研究之目的系决定乙醯胆碱酯酵素和丁醯胆碱酯酵素被五种心脏血管药物lovastatin， simvastatin， amlodipine besylate， nifedipine、hydralazine hydrochloride和两种benzodiazepines：diazepam和Chlordiazepoxide hydrochloride的抑制作用之动力学及机转，这些药物都是乙醯胆碱酯酵素和丁醯胆碱酯酵素的可逆性、混合型之抑制剂，实验结果显示，五种心血管药物对於乙醯胆碱酯酵素及丁醯胆碱酯酵素抑制之pKi值和药物之分子量呈直线之关系，斜率分别为0.005及0.0021因此丁醯胆碱酯酵素，与心血管药物间之凡德瓦作用（van der Waals' ）比乙醯胆碱酯酵素与心血管药物间者弱，这可能原因是丁醯胆碱酯酵素之活性区域比乙醯胆碱酯酵素之活性区域更宽广，但丁醯胆碱酯酵素之周边阴离子区域不及乙醯胆碱酯酵素之周边阴离子区域者明显重要，由於五种心血管药物对於乙醯胆碱酯酵素和丁醯胆碱酯酵素抑制之pKi值存在著线性关系表示此种抑制作用系经过共同之反应机理。

Mr Van Rompuy, 62, is a Flemish Christian Democrat virtually unknown outside Belgium, who only became prime minister last December.

范龙佩现年62岁，是一位弗拉芒基督教民主主义者，此次当选前在比利时境外声名平淡。

Mr Van Rompuy, a 62-year-old Flemish Christian Democrat, was picked in November 2009, at the same time as Catherine Ashton, a British Labour peer, who became the EU's foreign-policy chief.

身为弗莱德基督教民主党成员，62岁的范佩龙于2009年11月当选，而同一时间英国工党成员阿什顿夫人成为了欧盟外交和安全政策高级代表。

This idea of "corporate identity architecture" was called into question, however, by the 1984 erection of the sculpture "Balancing Tools" by Claes Oldenburg and Coosje van Bruggen.

可惜的是，在1984年克勒斯·欧尔登堡与布鲁根共同创作的"平衡的工具"的雕像落成之后，尼可拉斯所提出的这个"公司的标志性建筑"的想法遭到了质疑。

Unlike Claes Oldenburg and his wife, Coosje van Bruggen, the Lalannes did not collaborate so much as co-create.

不同于克拉斯？奥尔登堡和妻子布鲁根，拉兰内夫妇在创作上合作不多。

Called "Spoonbridge and Cherry," this sculpture, including the pond it spans, was designed for the Sculpture Garden by husband and wife team, Claes Oldenburg and Coosje van Bruggen.

被称谓的"汤匙桥和樱桃"，这个雕塑，包括池塘跨距，是有计划的雕塑公园由丈夫和妻子团队，克莱丝奥尔登伯格和Coosje范根。

Its clients over the years have included artists as diverse as Isamu Noguchi, Ellsworth Kelly, the duo Claes Oldenburg and Coosje van Bruggen and, perhaps most prominent, Mr.

这些年来，客户包括各式各样的艺术家，像野口勇、凯利、欧登伯格和布鲁根夫妻档，最有名的或许就是昆斯。

Called "Spoonbridge and Cherry," this sculpture, including the pond it spans, was designed for the Sculpture Garden by hu**and and wife team, Claes Oldenburg and Coosje van Bruggen.

这个叫做"汤匙桥和樱桃"的雕塑，连同它所横跨的池塘，是由Claes Oldenburg和Coosje van Bruggen这对夫妻档为雕塑公园设计的。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。