GDJ人卫目视观测数据采集和处理系统的研制     

何妙婵 《天文研究与技术》1996,(1)

本文介绍了ＧＤＪ跟踪打印经纬仪在人造卫星的观测中如何应用计算机对多圈卫星的目视观测资料进行实时采集、处理等工作过程的原理和方法。  相似文献   

中国海洋倾废历史与管理现状     

张和庆 《广东海洋大学学报》2003,23(5):15-23

介绍了我国海洋倾废的历史、发展过程和管理现状 ,分析了海洋倾倒的现状和面临的困难。文章还提出通过高新技术把疏浚泥迅速转化为再生资源进行利用和污染土无害化处理技术 ,从根本上减少疏浚泥海洋倾倒的数量和缓减海洋倾倒区紧张的状况 ,减少对海洋环境的污染  相似文献   

贵港市矿业发展现状与对策     

李东昌 《南方国土资源》2002,15(1):57-60

文章从贵港市矿产资源情况出发 ,通过对开发现状及存在问题的分析 ,探讨保证资源的合理开发和永续利用 ,为经济建设提供物质支撑的理念 ,提出了矿业可持续发展的对策。  相似文献   

Assessment of disaster resilience capacity of hillslope communities with high risk for geological hazards   总被引：2，自引：0，他引：2  

Su-Chin Chen  Jhy-Wei Ferng  Yu-Ting Wang  Ting-Yeh Wu  Jieh-Jiuh Wang   《Engineering Geology》2008,98(3-4):86-101

This study presents a novel preparedness assessment method for assessing hazard mitigation and environmental planning of hillslope communities. A professional questionnaire was utilized to weight each indicator. Communities in Hsinchu, Taichung and Nantou counties with debris flow hazards were taken as study samples. Debris flow risk and landslide susceptibility for each community were determined using Geographic Information System (GIS) technology and logistic regression analysis. Thus, a novel risk assessment method for evaluating disaster resilience capacity of hillslope communities was established. This method was then applied to assess casualties caused by Typhoon Herb in 1996 and Typhoon Mindulle in 2004. Additionally, the analytical results generated by this assessment method were discussed with the aim of developing references for implementation of risk analysis, increasing the effectiveness of disaster mitigation, and reducing future loss of life and property.  相似文献   

Wave of peace? Tsunami disaster diplomacy in Aceh, Indonesia     

Jean-Christophe Gaillard  Elsa Clavé 《Geoforum》2008,39(1):511-526

This paper uses the disaster diplomacy framework to address the impact of the 26 December 2004 tsunami disaster on the decades-long conflict between the Free Aceh Movement (GAM) and the Government of Indonesia. This framework enables the identification of a micro-factors of great importance in securing momentum for the peace talks. These factors include informal networks being created, plus disaster relief and diplomacy occurring at multiple levels through multi-way processes and the position of GAM dedicated to reconstruction activities. This paper further shows that, in the case of Aceh, the disaster had a deep influence on the peace talks between GAM and the Indonesian government and on the eventual implementation of the peace agreement reached. However, the tsunami disaster should not be considered the sole vector of peace in Aceh, but as a powerful catalyst in diplomatic talks, since negotiation between both sides were ongoing before the disaster and were favoured by recent changes in the political environment. Twenty-eight months after the tsunami catastrophe, it is actually non-disaster and internal political factors which are likely to have a more significant impact on the long-term resolution of the Aceh conflict. One important outcome is that it appears that the slow, unequal and often poor reconstruction process is not hindering, or even threatening, the peace process because tsunami disaster related factors are less important for peace than non-tsunami disaster related factors, findings in line with previous disaster diplomacy case studies.  相似文献   

近海环境地球化学调查研究历史与现状   总被引：1，自引：0，他引：1  

叶思源  周永青  刘兆茂  刘建霞 《海洋地质与第四纪地质》2003,23(4):121-126

近海环境地球化学的研究是一支新兴的发展中的边缘性分支学科，由于环境问题的日益突出，该学科发展较为迅速。通过回顾我国近海环境地球化学调查的历史和综述当今国外该学科的研究现状，概括了该学科的主要进展，并指出存在的问题和今后的发展方向。  相似文献   

东营城区高精度三维地震采集方法研究   总被引：3，自引：0，他引：3  

胡立新  刘怀山  张进 《中国海洋大学学报(自然科学版)》2004,34(6):1075-1080

根据东营城区内建筑物较多，环境干扰较大，地下构造复杂，断裂非常发育，目的层埋藏深，资料信噪比较低的特点，以地震老资料和钻井资料为基础，建立地震地质模型，利用射线追踪技术选取合适的观测系统参数。充分利用卫星数字地图，没计了灵活多变的观测系统，采用可控震源与炸药震源配合使用方法，及时对城区内地下面元的覆盖次数、方位角和炮检距的分布进行质量监控，利用现场处理系统对资料进行及时分析，提高了地震资料品质。所获得的东营城区高精度三维地震采集资料显示，其浅中层分辨率和中深层信噪比都有了明显改善，取得了良好的地质效果。  相似文献   

藻类功能食品的物质基础与研究开发现状   总被引：3，自引：0，他引：3  

周德庆  管华诗 《中国海洋大学学报(自然科学版)》1995,(Z1)

对藻类功能食品的研究和开发现状作综述报道。涉及的主要内容有：作为功能食品物质基础的食物纤维、ＰＵＦＡ、维生素、矿物质和微量元素、氨基酸以及其它有生理活性的物质。  相似文献   

基于LabVIEW虚拟仪器技术的海洋环境监测数据采集与处理系统     

陈东升  许肖梅  李雪丁  童峰 《海洋技术学报》2007,26(1):16-19,37

介绍一种基于LabVIEW虚拟仪器技术的数据采集与处理系统。该系统以单片机和计算机为硬件平台,采用高精度16位Σ-ΔA/D转换器AD7705对采集到的信号进行A/D转换,通过串口进行数据通信,实现了叶绿素浓度的计算机自动采集、实时数据显示、分析和数据管理等功能。该实现方案还可用于温度、盐度等参数的高精度自动数据采集系统,在海洋环境监测中具有推广应用的现实前景。  相似文献   

2021年10月山西一次罕见持续性强降水过程物理机制分析     

乔钰  赵桂香  王妍 《沙漠与绿洲气象(新疆气象)》2024,18(2)

利用气象观测资料、NCEP/NCAR 1°×1°再分析资料以及GDAS资料,对2021年10月2-7日山西持续性强降水天气过程进行分析。结果表明：稳定的乌拉尔山低槽后部冷空气扩散,中纬度短波槽东移,与副热带高压外围西南暖湿气流持续交汇,同时高低空急流耦合形成强烈上升运动,低层切变线和地面辐合线稳定维持,及低层水汽不断输送并形成辐合,为持续性强降水的发生发展提供有利动力和水汽条件。此次强降水过程分为对流性降水和稳定性降水2个阶段,2阶段水汽输送通道的源地、路径、高度均有明显差异,但水汽输送贡献率均以对流层中低层山西南侧的水汽输送占主导地位。降水开始前,对流层中上层存在对称不稳定,大气可降水量明显跃增;对流性降水阶段,干空气不断入侵,对流不稳定快速建立与释放,对流层中低层水汽辐合区与强上升气流配合,导致山西出现强对流天气。地形的阻挡、抬升及地形收缩作用,对局地极端强降水具有增幅作用。  相似文献