大型事件活动的特点和场馆的性质转变--昆明世博会和顺德花博会的案例

以实际资料分析＇99昆明世博会和顺德花博会的特点问题,并对大型事件活动（会展）场馆性质的转变问题进行了理论探讨。分析表明：＇99世博会和顺德花博会期间,各项指标均呈现明显的马鞍型变动曲线,其特征是前紧后松、中间平缓。应用消费社会学和社会行为地理学的理论,归纳了事件活动（会展）场馆作为消费空间性质转变的一个理论框架。基本结论是：大型事件活动（会展）场馆性质的转变只有融入其所在地方的旅游发展大潮,成为当地出色的景区,才能获得可持续的发展。     

Intelligent seismic isolation system using air bearings and earthquake early warning

Recently strong seismic waves or long period seismic waves have been observed in various earthquakes that occurred in Japan. As a result improvements of existing seismic isolation systems are deemed necessary. The present study proposed an intelligent seismic isolation system encompassing air bearings and earthquake early warning (EEW) system. Such system exhibits adequate isolation performance. The air bearings are isolation device that may render infinite the superstructure natural period by floating them, and the EEW is applied for a trigger of isolation. This paper illustrates the proposed system and discusses the experimental results of a test carried out with the system. Laboratory tests carried out in the present research demonstrate the effectiveness of the proposed base isolated systems and prove its efficacy in mitigating the effects of three-dimensional seismic waves. For example, the system suppressed the horizontal response acceleration of an isolation target to 38% of input acceleration.     

PC104嵌入式模块技术研究及在地学观测仪器设计中的应用>.

简单讨论了当前地学观测仪器设计中普遍使用的各种微处理器,并详细介绍了嵌入式PC104模块的特点和功能,揭示了该模块在观测仪器设计中具有较好的适用性和优点．通过对PC104模块各应用技术的具体研究,实现了PC104模块在磁通门磁力仪、地震数据采集器、GPS定位导航设备的实际应用设计．     

基于Pocket PC的多用途测图系统开发

简要介绍了Windows CE及嵌入式开发技术,对基于Pocket PC的多用途测图系统进行设计,并具体分析了其实现过程中地图显示、GPS数据接收、模块通信等各个环节及其实现方法,使用Embedded Visual C 开发出了适用于电力巡检、管线复查、野外草图测绘等多种业务的数字测图系统EmSurvey,实现了电子地图、项目管理、数字测图等基本功能,对系统实际应用中存在的问题进行了分析,并提出相应的解决方案。     

PC-E 500计算机在现阶段水准测量记录中的再利用

主要介绍PC-E 500计算机在现阶段水准测量记录中再利用的必要性 可行性及实际应用。     

Wind Ionization Structure of the Short-Period Eclipsing LMC Wolf-Rayet Binary BAT99-129: Preliminary Results

BAT99-129 is a rare, short-period eclipsing Wolf-Rayet binary in the Large Magellanic Cloud. We present here medium-resolution NTT/EMMI spectra that allow us to disentangle the spectra of the two components and find the orbital parameters of the binary. We also present VLT/FORS1 spectra of this binary taken during the secondary eclipse, i.e. when the companion star passes in front of the Wolf-Rayet star. With these data we are able to extract, for the first time in absolute units for a WR + O binary, the sizes of the line emitting regions.Based on observations obtained at the La Silla and Paranal Observatories, European Southern Observatory (Chile).     

区域数值天气实时预报系统的研制

主要介绍在自行研制的神箭SJ－100并行计算机机群上建立的实时区域数值天气预报系统。该系统通过国家气象卫星通信网络获取地面、高空气象探测资料和国家气象中心T106数值天气预报产品资料，并引入北半球海温格点场资料和当地地面观测资料；运用美国MM5模式，建立了三重套网格，最高水平分辨率为15km的业务预报模式，并于2001年1月开始投入业务化试用。试验表明：该系统具有较强的短期天气预报能力，尤其是降水预报准确率较高，近地面气温、风、相对湿度等要素预报质量好。所提供的预报产品客观、定时、定量、定点，预报产品丰富，且计算速度快，收到了满意的效果。     

Technique development of PC104 embedded module and its application in the geophysical instrument design

Introduction Electronic technique has been developing to so large scale integrated and high intelligent that the microprocessor has been the core in the electronic equipment or in the process control system design relying on its strong controlling and computing power, convenience to be application designed and to be programmed. Now the mainstream solutions widely used in the geophysical appliance are the single chip microprocessor (MCS), the digital signal processor (DSP), the common compute…     

PC104串行通信的应用

作者在文中详细阐述了PC104工控机串口的结构和工作机理，探讨了UART异步通信适配器的结构组成，并把该串口通信应用于MCA上，使数据采集仪器结构简单、轻便、体积缩小，便于携带和现场采集应用。