面向高端装备制造CAE技术的机遇和挑战

针对高端装备制造在设计、分析、制造、服役和维护等全过程中对CAE的需求,从结构、流体以及流固耦合等3个方面概述CAE技术国内外进展及其面临的机遇和挑战,指出在发展具有能够对装备在极端服役环境下准确的结构、流体和流固耦合CAE分析技术的基础之上,需不断突破面向工程应用的多物理场耦合、跨尺度分析、多学科综合设计、产品性能评估和集成等关键技术,使CAE逐步向支持现代设计和全寿命周期管理转变.     

基于ASP.NET的图书馆志愿者考勤系统

针对图书馆志愿者管理工作需要,利用ASP.NET开发平台和SQL后台数据库开发出一套便于操作和维护的图书馆志愿者考勤系统,系统从需求分析、柜架设计、数据库设计、数据流程图及模块的实现等方面进行介绍。     

中医方剂与图集的转换方法

中药复方数据挖掘研究是将我国丰富的中药信息资源和现代最新信息技术相结合的重要内容,它意味着基于中医理论,利用知识发现技术,对传统中药新药、中医组方理论及规律、中药作用机制、有效成分构效关系等多个方面进行全面、系统的研究。图作为一种经典的数据结构,被广泛用于复杂数据结构分析与建模。文章探讨了图建模技术并实现了中医方剂与图集的转换。     

Direct adaptive fuzzy control with membership function tuning

In this paper, a direct self‐structured adaptive fuzzy control is introduced for the class of nonlinear systems with unknown dynamic models. Control is accomplished by an adaptive fuzzy system with a fixed number of rules and adaptive membership functions. The reference signal and state errors are used to tune the membership functions and update them instantaneously. The Lyapunov synthesis method is also used to guarantee the stability of the closed loop system. The proposed control scheme is applied to an inverted pendulum and a magnetic levitation system, and its effectiveness is shown via simulation. Copyright © 2011 John Wiley and Sons Asia Pte Ltd and Chinese Automatic Control Society     

非部分嵌套信息结构的LQG动态队决策问题的可解性（II）*

本文讨论非嵌套信息结构的递阶队决策问题和控制均享信息结构的LQG分散控制问题,文中首先证明这两类问题的信息结构都是“部分控制嵌入”的,进而给出最优策略(或控制)存在的充要条件和当此条件成立时最优策略(或控制)的表达式。     

A parallel Monte Carlo search algorithm for the conformational analysis of polypeptides

In recent years several approaches have been proposed to overcome the multiple-minima problem associated with nonlinear optimization techniques used in the analysis of molecular conformations. One such technique based on a parallel Monte Carlo search algorithm is analyzed. Experiments on the Intel iPSC/2 confirm that the attainable parallelism is limited by the underlying acceptance rate in the Monte Carlo search. It is proposed that optimal performance can be achieved in combination with vector processing. Tests on both the IBM 3090 and Intel iPSC/2-VX indicate that vector performance is related to molecule size and vector pipeline latency.     

On the fit of models to covariances and methodology to the Bulletin..

Notes that 7 of the 10 top-cited articles in the Psychological Bulletin deal with methodological topics. One of these is the P. M. Bentler and D. G. Bonett (1980) article on the assessment of fit in covariance structure models. Some context is provided on the popularity of this article. In addition, a citation study of methodology articles appearing in the Bulletin since 1978 was carried out. It verified that publications in design, evaluation, measurement, and statistics continue to be important to psychological research. Some thoughts are offered on the role of the journal in making developments in these areas more accessible to psychologists. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

ZigBee网络中孤岛节点快速处理算法研究

研究ZigBee网络孤岛节点的搜索和处理,快速减免孤岛节点提高网络资源利用率。针对节点间因配置或接口协议不统一而造成孤岛节点的出现,传统的基于广度搜索的处理方法需要逐一遍历所有节点从而搜索出孤岛节点,造成搜索效率不高、网络资源利用率较低的问题。为解决上述问题,提出了基于节点帧的孤岛节点处理方法。利用ZigBee网络树型结构的特点,只有父节点中可能存在孤岛节点,因此通过判断网络节点是否为父节点并将结果保存在节点帧中,根据节点帧找到网络中有限的父节点并从中监测出孤岛节点,避免了遍历所有网络节点而造成的搜索效率不高的问题。仿真结果表明,节点帧方法能够快速搜索出ZigBee网络中的孤岛节点并作减免处理,有效提高了网络资源的利用率。     

企业图书管理信息系统的设计与实现

本文采用三层架构开发了图书管理信息系统,解决了开发中的一些关键问题,并利用豆瓣API实现图书详细信息的快速录入,对同类软件的开发具有一定的指导作用。