摘要：美国麦克唐纳飞机公司在20世纪S0年代初设计的F3H型舰载喷气式战斗机在该国航空发展史上具有十分重要的意义。不同于同期其他飞机制造公司一些盲目跃进的产品，F3H先后发展了F3H-1N、F3H－2N、F3H－2M和F3H－2四种型号．历经了从J40发动机到J71发动机.

摘要：介绍了高速公路联网收费系统的设计和实现。

摘要：In this paper, a Turbo aided Cyclic Prefix (CP) reconstruction scheme, termed Turbo- CPR, is proposed for Single-Carrier systems with Frequency-Domain Equalization (SC-FDE) that employ insufficient CP in the transmitter. In Turbo-CPR, the decoder output is incorporated in the process of equalization, i.e. Turbo equalizer is employed. It is shown in the simulation results that Turbo-CPR not only recovers the performance loss due to insufficiency of CP, but also provides extra gains over the lower bound of performance for conventional CP reconstruction schemes.

摘要：采用文献资料研究法 ,论述了奥林匹克体育是人类创造的一种文明 ,在产生和发展过程中始终依赖一定的历史条件和当时的文明程度的观点。认为只有认清奥林匹克的源头 ,才能准确把握奥林匹克发展的方向。揭示了奥林匹克体育与古希腊的经济文明、军事文明、宗教文明、艺术文明。

摘要：分析了基于的网络管理技术,提出了一种解决网络管理安全的方法,并结合基于的网络管理技术进行了安全管理系统的原WebWeb 型设计与实现。

摘要：为寻找符合中国国情的大肠癌普查法,我们设计了序贯法粪隐血初筛法(简称SFOBT)并与化学法(CFOBT)和免疫法(IFOBT)粪隐血试验比较,证实SFOBT不仅敏感性高,且操作简便、经济。采用SFOBT普查北方五省102800例无症状人群,提示:(1)北方五省大肠癌发病率为24.31/10万。(2)普查检出之大肠癌52%为DukesA或B期,临床诊断大肠癌者A、B期仅为36.83%。(3)大肠癌发病率随年龄增长而增加,60～69岁为高峰。(4)82%的癌和62.23%的肿瘤位于直肠和乙状结肠。(5)大肠肿瘤家族史阳性者中,大肠肿瘤检出率高。(6)饮食习惯与大肠癌发病无明显相关。

摘要：介绍了一个系统下的基于的高级网络应用编程接口的设计与实现。接口封装了的编程细节,简化了网络UnixAPINPORTNPORTAPI应用编程。

摘要：This paper presents the implementation of two multicriteria optimization methods based on different approaches, namely, Rough Set Method (RSM) and Net Flow Method (NFM), to the manufacture by reactive extrusion of linear thermoplastic polyurethanes (TPUs), appropriate for medical applications. A preliminary study allowed determining the process operating conditions for which the polymerization time and the average residence time of the reactants in the extruder are of the same order of magnitude. Prior to the optimization, a neural network model able to predict with acceptable accuracy the effect of the operating conditions on the output process variables, was constructed and validated. This model was then used to determine, using Pareto’s concept, a set of non-dominated solutions constituting Pareto’s domain. These solutions were then ranked according to the preferences of a decision maker using NFM and RSM. This allowed providing the 10% highest ranked solutions of Pareto’s domain and proposing a set of optimal operating conditions for the production, with the lowest energy consumption, of TPUs with targeted properties and high purity. Experimental validation runs carried out under similar operating conditions gave rise to criteria values confirming the su- perior performance of NFM, without rejecting, at the same time, the values obtained using RSM.

摘要：将可视化和面向对象技术引入并行程序设计将大大提高并行程序的开发效率,文章介绍了基于并行C++的并行面向对象可视化开发环境的设计思想和组成结构。

摘要：利用有限元分析的方法,对髋关节中空多孔假体植入后的受力分布改变进行研究,为改进中空多孔人工关节假体的设计提供依据.建立了股骨和假体三维有限元模型,应用有限元分析软件Ansys5.7模拟单腿负重状态,考察应力分布并进行比较.使用SPSS Statistics 17.0软件进行分析处理,绘制折线图.结果表明:a.开孔后张力侧最大压应力有所减小,开孔部位的应力水平变化不明显.b.与周围骨质形成连接后孔缘局部应力增加,张力侧受力改变不明显.c.短柄假体受力模式仍为远端应力集中;张力侧应力减小,开孔部位应力明显增加.d.下孔受力均大于上孔,受力方向基本一致.