Modeling of a New Telerobot

This paper deals with the modeling of a robot with a new kinematicdesign. All joint movements in this robot are transmitted via concentrictubes and bevel gears. D'Alembert's principle is used to derivethe equations of motion for rigid and elastic models, consideringthe elastic deflections of the arms and inner tubes. Implementing therecursive algorithm, both symbolical and numerical methods were tested.The advantages and problems are discussed. In order to verify the model,simulation results are compared with measurements.     

TCP连接性能的FCM聚类分析

分析了模糊聚类中的FCM(Fuzzy C-Means)算法,利用该算法对一个TCP连接日志的抽样数据进行聚类,利用聚类中心对任选的两组数据集进行分类,并对聚类结果进行了分析。     

浅析“静中求动”的设计思维——以灯的“开”与“关”状态联想感悟事物的关联性、可变性

任何事物的存在都不是固定的状态和单一的形式,对事物的认识理解也不应是局限的、固有的,经验感知往往使我们对事物存在方式的认识受到限制,应在静中求动,通过关联性寻求可变因素。本文还通过对灯的"开"与"关"状态的联想为例,浅析"静中求动"认识事物的思维方法,"设计不是一个结论,而是一种假设,不是一种宣言,而是一种步骤、一个瞬间,这里没有确定性,只有可能性,没有真实性,只有经验性,没有那是什么,只有发生了什么",设计是实现作品与生活之间的一种可能性关系。     

基于Smart Client的军队网上考评系统的改进

随着军队网上训练与考评系统在部队各单位的广泛使用,传统的C/S或B/S模型的军队网上训练与考评系统不能满足实际应用的需求,利用新技术对原系统进行改进成为亟需解决的问题.讨论了目前比较先进的Smart Ciient技术,并利用该技术对原有的军队网上训练与考评系统进行设计与改进,介绍了系统的结构、改进的关键部份的实现.该系统已经成功地应用于兰州军区各单位,并取得了很好的效果.     

Approximate calculation of the characteristics of multirate systems with inelastic and elastic calls

Models of multirate systems in which inelastic and elastic calls (ie-calls and e-calls, respectively) are jointly serviced are investigated. It is assumed that through the entire service period the iecalls simultaneously occupy b ≥ 1 channels of the system, moreover, all the channels begin and complete servicing of the same ie-call simultaneously. The elastic calls simultaneously occupy m channels, m ≤ m ≤ \(\bar m\), where m and \(\bar m\) are specified quantities, with the service rate being proportional to the number of channels busy servicing e-calls. Models with continuous and discrete band for servicing e-calls are investigated in detail. Effective numerical algorithms for calculating the characteristics of the models are developed and results of computational experiments are presented.     

蓝牙（Bluetooth）在数字化信息家电中的应用

随着计算机和网络通信技术的发展,计算机数字化技术,现代通信技术,已融合到信息家电中,使之智能化并具有网络信息终端的功能,本文讨论了蓝牙协议体系分析及应用模型,蓝牙连接方案,及蓝牙在数字化信息家电中的应用。     

WEB站点中电子论坛的实现

本文利用微软的ＩＩＳ中提供的ＩＤＣ技术,将Ｗｅｂ 服务器与数据库系统连接,较详细地叙述了在Ｗｅｂ 站点中实现完全从底层架构起来的电子论坛的程序实现,以使浏览器用户实时地互相交流信息     

异种机,异种操作系统双冗余网络的设计实现

本文通过分析舰载作战指挥系统对网络的需求,提出了一套双冗余网络方案,在Sun/Solaris,PC/加固微机/Vxworks等平台上设计并开发了双冗余网络实用软件包Bnet,该软件解决了通信中的可靠性,异种计算机、异种操作系统的互通互联、双冗余网络的工作方式、测试方法和切换过程等问题。     

Elastic properties of As-Sb-Se glasses

Results of measurement of elastic modulii on As-Sb-Se glasses are reported and their composition dependence discussed. The Young’s and the shear modulii lie in the range of 170–210 and 65–80 kb respectively. These values are typical of chalcogenide glasses. For (As, Sb)₄₀Se₆₀ glasses, the modulii increase monotonically with increasing Sb₂Se₃ content. The observed composition dependence of the modulii for the As _x Sb₁₅Se_{85 −x} glasses is examined in terms of the chemically ordered structural units in the glasses.     

低压长袋脉冲袋式除尘器设计与应用

以工业原料尤里卡沥青(EP)为对象，详细论述了低压长袋脉冲袋式除尘器的主要设计环节，着重分析了新型脉冲阀技术。指出了该技术在化肥行业原料干燥、风扫制备等方面的推广应用和发展趋势。