摘要：研究了脉冲Hopfield神经网络在Hopfield意义下的鲁棒稳定性 .通过应用Lyapunov函数法和Riccati不等式方法 ,得到了脉冲Hopfield神经网络鲁棒稳定和鲁棒渐近稳定的充分条件 ,在此基础上 ,设计出了易于实施的脉冲控制器来镇定Hopfield神经网络 .最后 ,给出了例子 .

摘要：利用输出差分及滑模方法研究一类非线性系统的自适应时延状态观测器设计问题 .首先将系统输出的微分及高阶微分用输出和其延迟测量值的差商来表示 ,然后在此基础上构造了一种时延状态观测器 ,估计误差的影响可由滑模项来消除 .在系统满足线性参数化的条件下给出了一种自适应时延状态观测器设计 .最后给出仿真研究说明设计方法的有效性 .

摘要：We study the quasi likelihood equation in Generalized Linear Models（GLM） with adaptive design ∑（i=1）^n xi（yi-h（x＇iβ））=0, where yi is a q=vector, and xi is a p×q random matrix. Under some assumptions, it is shown that the Quasi- Likelihood equation for the GLM has a solution which is asymptotic normal.

摘要：用有限单元法建立三维编织复合材料构件机器人的动力学模型 ,并用数值积分法求解执行件端点动态响应 通过构件材料阻尼的极大优化 ,显著地减短机器人执行件端点的残余振动时间 图 2 ,表 1,参

摘要：如何快速而精确地估计箱式超大型浮体在波浪中的水弹性响应是设计中需要解决的一个重要问题。在所提出的各种简化分析方法中,弹性地基梁模型是最简单的。本文选择了四种弹性地基梁模型进行比较研究。它们分别称为S_Y_BOEF,T_BOEF,S_BOEF和A_BOEF模型。通过研究发现,由Suzuki和Yoshida提出的S_Y_BOEF模型显得太保守而不适合于实际应用,而其它三种模型是能够合理地估计箱式超大型浮体的水弹性响应的。相比而言,由S_BOEF模型延伸出的A_BOEF模型从概念上的一致性和精度方面都是最好的。弹性地基梁模型的最大优点是简单,可以很方便地在工程设计中应用。

摘要：涡激振动预报对于深水环境中的细长海洋结构物的设计至关重要。近年来出现的若干经验模型基于圆柱体受迫振荡实验数据。文中介绍了细长海洋结构物涡激振动预报工具的发展,进而提出了一种基于圆柱体受迫振荡实验数据的预报模型。与现有的类似模型相比较,该模型更加直接地利用了原始模型实验数据,并且将立管的有限元模态分析并入到响应预报当中,以计及立管物理参数的不均匀特性。利用近期立管模型在阶梯状分布流以及剪切流中的涡激振动响应实验测量数据,验证了该模型的有效性。该模型的计算结果表明,立管的模态振型、模态频率与涡激振动响应高度耦合,并且对于低质量比的情况尤为明显。文中还指出了类似的基于受迫振荡圆柱体实验数据的预报模型存在的缺陷。

摘要：将网络控制系统 (NCS)看成一个具有输出时延的采样控制系统 ,并建立了其数学模型 .接着构造了一个故障观测器 ,产生了系统故障的指示器残差 .然后在此基础上介绍了一种故障检测和分离 (FDI)的方法 ,总结了FDI观测器的设计算法 .最后 ,一个实例证明了此方法的可行性 .

摘要：The aim, characteristics and requirements of stampability evaluation are identified. As sampability evaluation is highly skill intensive and requires a wide variety of design expertise and knowledge, a knowledge based system is proposed for implementing the stampability evaluation. The stampability evaluation knowledge representation, and processing phases are illustrated. A case study demonstrates the feasibility of the knowledge based approach to stampability evaluation.

摘要：Reasonable and effective buffer structures are proposed in core routers /nodes of optical burst *** on the model of burst traffics and their contentions,the basic qualifications for the design of buffer structures are *** these qualifications,buffer and switch integrated structures are proposed;and by conclusion and expansion,the classification rules of buffer structures are also proposed from different *** schemes to integrate structures are analyzed and simulated.

摘要：An impeller is the most important component affecting the performance of centrifugal fans. The flow in the impeller is very complicated, and the 3\|D viscous flow is difficult to simulate numerically. This paper presents a numerical method for simulating the flow in practical commercial impellers. The predictions are compared with experimentally measured fan performance results. The predicted total pressure and efficiency for two fan models, whose optimum designs were determined by this method, agree well with the measured data for the design flow rate. The results show that the aerodynamic and noise levels for these two models are excellent. The paper also presents several new ideas about the shape of the front plate and the blade flow pattern to improve the flow in an impeller channel. The practical simulation methodology and results developed here will be very useful to the fan industry in the future. 