浅谈水电厂自动化元件的配置与优化运行

介绍了如何配置与优化水电厂的自动化元件,其配置选型应以可靠实用、结构简单、便于维护为原则,同时还应结合电厂的各种介质特点、设备运行方式、控制方式等因素综合考虑.     

基于PⅢ工控机VI测控系统远程控制研究

虚拟仪器（VI）将计算机采集测试分析引入到电子测量领域，用数字化和软件技术极大地提高了测量的灵活性。而VI远程测控系统是网络技术、通信技术一计算机虚拟技术结合的产物。远程控制技术能够使操作突破地域的限制，已在网络环境下PⅢ工控机上实现。     

基于INI文件的动态构图案例编程

本文结合动态构图案例编程．主要分析了INI文件的结构特点，给出了设备仿真程序动态构图部分的编程方法，对于开发设备仿真类软件有一定的借鉴作用。     

朗讯cdma 1x基站分组管宽度的配置

简单介绍朗讯系统cdma 1x基站分组管(PP)宽度的配置，并对朗讯cdma 1x基站分组管宽度不合理的配置及信道板扩容后的PP宽度配置进行了案例分析。     

核电站中椭圆柱形屏蔽体辐射衰减率的仿真研究

为了预测核电站中椭圆柱形屏蔽体的辐射衰减率，该文用数值解析法对放射线源到评价点的放射线所穿透椭圆柱形屏蔽物体的交点进行了研究。首先用空间解析法建立了椭圆柱形物体的数学模型。然后解曲面方程求出交点。在判断放射线是否穿透此椭圆柱体时，该文又提出了椭圆柱形屏蔽体的假想外接长方体的建模方法，将曲面方程联立解的复杂计算简化为一次代数方程的简单计算，大幅度地缩短了计算时间。     

On an Interactive Network Security Measur

The development of the global information highway has brought great impetus and impact to every domain of the world: science, technology, economy and culture as well. Information security of network as an integrated system engineering needs a long period of tackling key problems and planning in such fields as researching and application. The threats to network security can be classified as: hacking, inside attack, computer virus, leak of secret message and modification of key data in network. …     

Analysis of exclusively kinetic two-link underactuated mechanical systems

Analysis of exclusively kinetic two-link underactuated mechanical systems is undertaken in this paper. It is first shown that such systems are not full-state feedback linearizable around any equilibrium point. Also, the equilibrium points for which the system is small-time locally controllable (STLC) is at most a one-dimensional submanifold. A concept less restrictive than STLC, termed the small-time local output controllability (STLOC) is introduced, the satisfaction of which guarantees that a chosen configuration output can be controlled at its desired value. It is shown that the class of systems considered is STLOC, if the inertial coupling between the input and output is nonzero. Also, in such a case, the system is nonminimum phase. An example section illustrates all the results presented.     

蒸发器液位测量技术探讨

本文指出了采用液位测量方式设计的不足，通过理论分析结合现场实际提出了改造方案，以及如何用计算机实现，并根据使用效果得出结论。     

投影显示用LCoS显示芯片设计

首先确定了三片式投影用硅基液晶(LCoS)显示器应具备的显示性能参数,进一步提出LCoS显示芯片器件物理结构及其电路组成框图。从芯片整体角度介绍了设计方法,详述了运用CadenceEDA工具设计LCoS显示芯片的具体策略和相应步骤,给出了LCoS显示芯片的实际设计版图。     

中山古镇风韵独具

特殊的自然地理环境和社会、经济、文化的影响,形成了重庆市江津中山镇鲜明的地域文化特色,这些特色突出地表现在城镇形态格局、街巷空间布局、建筑空间开合等方面。本文对此进行了深入的研究。