风能资源观测数据省级传输系统   总被引：2，自引：0，他引：2  

艾艳  胡英媚  王甫棣  王敏  霍锐 《气象与环境科学》2010,33(4):75-79

风能资源观测数据省级传输系统是国家风能资源数据库建设项目的一个重要组成系统,是全国风能及其相关数据和产品服务的基础,并已实现了观测数据的业务化传输。该系统由数据收集、收集处理、数据分发、传输监视等4个功能模块组成。数据收集模块功能由Linux下的socket编程实现,可收集实时和历史数据、备份数据、删除过时数据;收集处理模块功能由Linux下的C语言编程实现,可对数据的唯一性、正确性及格式进行检查;数据分发模块功能由Linux下的socket编程实现,可实时分发、失败重发、分发日志记录;传输监视模块具有监视、统计、信息查询和显示等功能。  相似文献   

基于C/S结构的气象信息网络综合监控系统的设计与实现     

张方  武鹏  霍锐  刘静  王敏  艾艳 《气象与环境科学》2009,32(Z1)

针对目前河南省气象信息网络实时业务需要,设计并实现了一种基于客户端/服务器(C/S)模式的气象信息网络监控系统.该系统采用数据库技术、GIS二次开发组件技术在Borland C + +Builder 5.0环境下开发完成,实现了对各类上行气象报文传输质量、网络质量、新一代天气雷达产品传输率的自动实时监控,监控结果以表格和图形两种形式实时自动刷新,出现错情后自动报警,还实现了省中心到台站网络质量专题信息的地图发布.系统内容丰富,界面友好,具有较强的实用性.  相似文献   

对流有效位能计算的新方案   总被引：2，自引：1，他引：1  

李任承  李红艳  李焕德  霍英 《气象科学》2010,30(1):82-86

对流有效位能是强对流天气分析预报的重要参数。本文通过理论推导,提出了载水气块和非载水气块两种情况下,对流有效位能的两个新的计算方案,分别记作CAPEw和CAPE。该方案与以往的方案有很大的不同和根本的区别,更加合理和符合实际。编制了相应的计算程序,可以计算两种情况下的对流抑制能量CINw、CIN,对流有效位能CAPEw、CAPE,抬升凝结高度LCL(二者相同),自由对流高度LFCw、LFC,对流凝结高度CCL(二者相同)以及平衡高度ELw、EL;可以预报对流温度Tg(二者相同);可以分析地面和高空温度、湿度、等压面高度发生变化时,CINw、CIN和CAPEw、CAPE等的数值变化情况,便于业务应用和理论研究。还讨论了影响对流有效位能局地变化的因子和预报思路。  相似文献   

城市环境地质调查信息化建设   总被引：2，自引：2，他引：0  

张礼中  张永波  周小元  王乾  蔡子昭  梁国玲  霍志彬  王伟  张春英  石磊 《上海国土资源》2010,(2):20-25

从提供全程支持城市环境地质调查评价主流程信息化的技术手段出发,依据城市环境地质调查评价规范,制定了统一的数据库标准,对城市环境地质调查信息化建设的总体框架进行了设计,分析了城市环境地质调查评价信息系统组成、功能及应用模式,重点研制了为调查评价各过程服务的相应计算机分析处理系统,并得到了实际的推广应用。  相似文献   

Chemical character of precipitation and related particles and trace gases in the North and South of China     

Mingqun Huo  Qian Sun  Yuhua Bai  Peng Xie  Zhaorong Liu  Jinlong Li  Xuesong Wang  Sihua Lu 《Journal of Atmospheric Chemistry》2010,67(1):29-43

Rainwater samples were collected at four sites, including Beijing and Mazhuang Town in the north of China, Shenzhen and Mangdang Mountain in the south of China. Character of atmospheric particles and gases were also measured at Mazhuang Town and Mangdang Mountain. Both of Beijing and Shenzhen are urban sites; Mazhuang Town and Mangdang Mountain are rural and remote sites respectively. The atmospheric pollution at rural plain site in the north of China was more serious than that at remote mountain site in the south of China. At Beijing, Mazhuang Town, Shenzhen and Mangdang Mountain the average pH values in rainwater were 6.02, 5.97, 4.72 and 4.81, respectively and the concentrations of total ions in rainwater were 1454, 1125, 187 and 191 μeq/l, respectively. While the acidity of the rain was higher in the south than that in the north, the rainwater in the north of China was more severely polluted than that in the south. The major acidic ion in the rainwater is SO₄^2-, and NH₄⁺ is the most important neutralizing ion in rainwater at the four sites, followed by Ca²⁺. The amounts of organic acid in precipitation were compared with other sites in the world. The ratios of organic acid to total free acid in rainwater at Mangdang Mountain was 13.8% and the influence of organic acid on acidity of rainwater at mountain site in the south of China is more important. The variation of atmospheric particles, gases and components in rainwater and cloud-fog water during special rain and cloud-fog events was discussed. The importance of washout process varied with atmospheric species. The impacts of rainfall, rain duration time and wind speed on wash-out process were estimated by regression analysis.  相似文献   

夯扩桩在高层建筑软土地基中的应用     

霍凯成 《岩土工程技术》2001,(2):80-85

以建在软土地基上的高层建筑采用夯扩桩为实例，对该桩型在设计、施工方面的一些问题作了分析、研究，并与类似地基上倾斜过大而被爆破拆除的18层高层建筑的桩基进行了对比。  相似文献   

地外撞击作用与地球灾变环境   总被引：7，自引：0，他引：7       下载免费PDF全文

马配学  柴之芳 《地质论评》1995,41(1):20-27

撞击理论是美国物理学家Ａｌｖａｒｅｚ等（１９８０）根据白垩系－第三系（Ｋ／Ｔ）界线粘土层中发现的贵金属元素铱的异常所提出的。十几年过去了，科学家们围绕着这一理论开展了广泛的争论和多方面的研究，取得了不少成果。到目前为止，在世界各地白垩系－第三系界线上发现的异常已有百余处。不少地方还发现了冲击变质矿物和冲击层。研究还发现显生宙来以生物的大量绝灭和地外物体的撞击具有近乎一致的周期性，大约为２６Ｍａ。最  相似文献   

Prediction of the Granite—Type Gold Deposits by Grey Relational Analysis     

费忠华  王京贵等 《中国地球化学学报》1995,14(2):188-192

Calculated in this paper is the relational grade between each of ghe 1608 prediction units and the granite-type gold deposits in Jiaodong, concerning 78 geological variants of factors ,in terms of the relational grade analysis of the grey system.The isopleth of the residual values is drawn through trend analysis and anomalies are outlined. Also pointed out in the present paper are the pathfinders for prospecting of gold deposits in various parts of China.  相似文献   

Generation of hazard-consistent fragility curves   总被引：1，自引：0，他引：1  

Howard H.M. Hwang  Jun-Rong Huo 《Soil Dynamics and Earthquake Engineering》1994,13(5)

This paper presents an analytical method for generating fragility curves of structures. In the proposed method, seismic sources, path attenuation, local soil conditions, and nonlinear building behavior are systematically considered. The uncertainties in the earthquake-site-structure system are quantified by considering the uncertainties in the seismic, site, and structural parameters that define the system. For an illustration, the proposed method is used to generate fragility curves and a damge probability matrix for Smith Hall on the main campus of The University of Memphis, Memphis, Tennessee.  相似文献   

宁夏地质梗要   总被引：2，自引：0，他引：2  

霍福臣 《甘肃地质》1993,(Z1):101-133

宁夏位于中朝准地台和昆仑秦岭地槽褶皱区两大地质构造单元的衔接部位。区内各时代地层均有出露;岩浆岩不发育;构造运动活跃。该区地质构造的演化大致经历了4个阶段。  相似文献