浅析步进电机的发热与安全

分析了步进电机发热的原因及发热带来的影响，提出了如何减少步进电机发热的方法。     

DVR监控系统中的资源整合

Bank One是美国第六大银行集团,在美国的各个城市拥有超过1000个网点,并且在其他国家也设有分行.近几年来,该银行获得了长足的发展,主要归功于这家银行实施的大规模兼并策略.但具体到银行的监控系统来说,不断的合并却使这家银行的监控系统日趋复杂.在不同的网点中,有的使用最先进的监控系统,有的使用老式的系统,还有几家甚至在利用电影摄像机来完成监控.为了使该行的全部设施都能具备同样的性能和维护标准,必须要对整个设施中的监控系统进行升级.     

分洪区数字地形模型建立及其应用

从实用的角度介绍了建立分洪区数字地形模型（ＤＴＭ）方程,并给出了在分洪区信息可视化、分洪区特征曲线生成、分洪区二维洪水演进等等方面的应用。     

Direct numerical simulation of the motion of circular pollutant particles in Newtonian fluid

An improved implementation of distributed multiplier/fictitious domain method is presented for the direct numerical simulation of particulate flow. The key improvement is to replace a finite-element triangulation for the velocity and a “twice-coarser“ triangulation for the pressure with a rectangular discretization for the velocity and pressure. For code validation, the sedimentation of a single particle in a twodimensional channel was simulated. The results showed that the simulation is independent of the mesh size as well as the time step. The comparison between experimental data and this simulation showed that our code can give a more accurate simulation on the motion of particlesthan previous DLM code. The code was then applied to simulate the sedimentation of 600 particles in a rectangular box. The falling course ispresented and discussed. At the same time, this simulation also demonstrates that the method presented in this paper can be used for solving the initial problems involving a lager number of particles exaclly with computing durations kept at acceptable levels.     

浅谈内蒙古环境保护信息化走向

本文对内蒙古自治区和包头市环境保护信息化发展条件、现实状况和不足作了分析；提出了制定“数字环保规划”、推广使用国家环境监理信息系统、建立黄河监测和监理信息系统和提高人员信息化素质等建议。     

深圳敏通实业有限公司

敏通是1979年成立于台湾的全球著名CCD摄像机、数字摄像视频处理设备的专业制造商。绝大多数产品已通过CE，UL/CSA，FCC产品认证。主要产品包括采用敏通专用DSP(数字信赖处理器)和索尼、松下、夏普、三星影像传感器的彩色和黑色CCD摄像机。敏通还设计和生产了全球最新技术的Alpha系列摄像机。