Design and Implementation of the Hydrographic Production and Management Information System (HYPAMIS)     

Deren Li  Haigang Sui  Xinyan Zhu  Jianya Gong 《Marine Geodesy》2013,36(2):137-157

With the development of hydrographic work and information techniques, the traditional work mode is not suitable for the Chinese Marine Safety Administration Bureau (CMSAB). Aiming at the separation of charts production and management, a new idea that is the integration of production, management, and quality control is presented. Geographic Information System (GIS), Management Information System (MIS), Office Automation (OA) and Spatial Database Management (SDM) advanced techniques are introduced into the workflows in CMSAB. To realize information sharing, a mixed mode with Browser/Server (B/S) mode and Client/Serve (C/S) mode are adopted. Based on the above ideas and strategies, an integrated system named Hydrographic Production And Management Information System (HYPAMIS) was developed. The whole workflow and three subworkflows including survey management workflow, production workflow, and quality control workflow of are outlined after re-engineering the CMSAB organization. Some design principles and key techniques of the HYPAMIS including the cooperation of GIS and MIS, object-oriented spatial data model and management, data management based on database, and security control are illustrated in detail. Then the implementation of the system is introduced briefly. Finally, performance evaluation of the system and future work is given.  相似文献   

基岩大口径垂直钻孔施工实践          下载免费PDF全文

赵国富 《探矿工程》2010,37(3):49-51

针对基岩中施工大直径垂直钻孔的难点,介绍了采用小径导向孔、加放活导向器、用小径导向孔对大口径钻孔进行监测、使用具有超前导向的大口径扩孔钻头等技术措施,成功实现了在基岩中施工大口径垂直钻孔和全孔下放大直径钢管的施工过程。  相似文献   

吉林省龙井市金谷山金矿床成矿地质 特征及成因探讨     

贾大成  韦延光 《吉林大学学报(地球科学版)》2000,30(3):230-233

龙井市金谷山金矿床是近几年在延边地区新发现的中大型金矿床。矿体赋存于二叠系浊积岩系中 ,其形成受原始含矿岩系、不同岩性界面、断裂构造、褶皱构造和热液叠加改造等多种地质条件控制。一系列矿体产出特征表明其属于微细浸染型金矿 ,与穆龙套型金矿相似。微量元素、稳定同位素等反映出该矿床具有层控深源流体改造型成因特征。  相似文献   

地质找矿思维导向的思考     

戚长谋  张慧君 《吉林地质》2000,19(2):48-50

本文在总结地质找矿实际事例基础上,论证了在地质找矿中思维导向的意义和作用,并就如何运用已知推测未知、从个性抽象出共性再依据共性去认识个性、由表象深入到本质的辨证思维方法等问题进行了具体分析,其目的在于提高人在地质找矿实践中的自觉能动性,避免找矿思维的误导,更有效地开发矿产资源。  相似文献   

Safety at sea and fisheries management:: fishermen's attitudes and the need for co-management     

I. M. Kaplan  H. L. Kite-Powell 《Marine Policy》2000,24(6)

Safety at sea is a serious issue for the commercial fishing industry; it ranks highly in all assessments of occupational dangers including risk-taking, injuries, and fatalities. This paper examines the impact of fisheries management on safety at sea and the use of fishermen's input in the safety regulatory and management process. Using case study techniques of analysis, 22 boatowners, captains and crew all with a minimum of 10 years experience in the commercial fishing industry and from a common New England port (New Bedford) are interviewed. Findings strongly suggest that regulations that have been primarily designed to reduce pressure on fish stocks may also result in increased pressure on fishermen and decreased safety at sea. Attitudes about the role of the New England Fisheries Management Council and improvements to the safety regulatory and management process particularly with regard to the increased participation by fishermen are also examined.  相似文献   

The ALFA Laser: Beam Relay and Control System     

T. Ott  W. Hackenberg  S. Rabien  A. Eckart  S. Hippler 《Experimental Astronomy》2000,10(1):89-101

The ALFA laser subsystem uses a 4 watt continuous wave laser beam to produce an artificial guide star in the mesospheric sodium layer as a reference for wavefront sensing. In this article we describe the system design, focusing on the layout of the beam relay system. It consists of seven mirrors, four of which are motor-controlled in closed loop operation accounting for turbulences inside the dome and flexure of the main telescope.The control system features several computers which are located close to analysis and control units. The distribution of the tasks and their interaction is presented, as well as the graphical user interface used to operate the complete system. This is followed by a discussion of the aircraft detection system ALIENS. This system shuts off the laser beam when an object passes close to the outgoing laser.  相似文献   

陕西凤县铅硐山大型铅锌矿床矿物地球化学研究   总被引：15，自引：6，他引：9  

方维萱 《矿物学报》1999,19(2):198-205

本文讨论了陕西铅硐山大型铅锌矿床矿物地球化学特征,矿物地球化学有助于深化和认识成矿元素参成矿成晕过程中的演化与富集规律。该方法在确定矿床的找矿指示元素,确定元素的垂向分布带,提供矿床成因的地球化学证据,查明矿床的有益组分和有害组分的赋存状态与预测中有广泛的应用价值。  相似文献   

略论中国碳酸钠矿床     

魏东岩 《化工矿产地质》1999,21(2):69-75

碳酸钠矿床有三大类型：第四纪盐湖型、第四纪砂下湖型及第三纪陆相碎屑岩型,在中国均有发现。矿床均赋存于第三纪以来（多为第四纪）陆相湖盆。其形成受地质构造、物源、气候、生物地球化学等条件制约。半干旱的草原-沙漠区是现代碱湖分布区;中新生代构造-火山活动带是大型碱矿存在的前提。应注意研究寻找工业价值较大、产于第三纪断陷盆地的古代矿床及碱水矿床。油、碱、盐兼探应为找矿的有效途径。  相似文献   

天津地震信息网络系统的安全建设1     

周利霞  王晓磊  杨奕  刘磊  丁晶 《震灾防御技术》2013,8(3):334-339

本文从当前网络所面临的安全问题出发,阐述了天津地震信息网络系统所面临的安全威胁,以及针对这些情况所进行的信息网络系统的安全建设工作.文中详细列举了系统中使用的安全设备与应用情况,以及日常运行和维护管理中的措施要点,可为行业中网络安全系统建设提供一定参考.  相似文献   

DRASTIC模型在地下水水源地安全性评价中的应用     

张中祥  张海林  罗斐 《山东国土资源》2011,27(8)

地下水水源地是当今社会经济发展和生活的主要水源,水源地安全性评价具有十分重要的意义。DRASTIC法是国际上关于水源地脆弱性评价较为成功的一种方法,它较全面地考虑了与水源地脆弱性有关的各种因素,但鉴于水源地水文地质条件复杂程度、研究精度不一,评价结果往往与实际不符,对水源地安全性评价因子的选取和赋予的内涵上应因地而异。该文依托山东省主要城市饮用水安全保证调查评价项目,在DRASTIC法研究的基础上,将评价因子赋予新的内涵,使之更加符合山东省水源地的实际,并对城市地下饮用水水源地安全性作出评价。  相似文献