Thermal regime database of Ignalina Nuclear Power Plant cooler--Lake Drŭksiai

The hydrothermal regime of the Lake Druksiai has changedwhen it became a cooler for the Ignalina NPP. For 18 years, 1981–1998, the hydrologists from Lithuanian Energy Institute have been investigating thermal state of the lake. The water temperature data owned by the laboratory is unique as it has been collected sequentially during 18 yr under wide range of different weather and INPP capacity conditions. Gathered information consists of lake surface temperature, related meteorological data and INPP operating capacity data. This information enables not only to state that the relationship between hydrological and meteorological/INPP capacity data exists(that is already known) but also to analyze its character. The aim of this study was to build computer database for data analysis and management as well as to create digital maps for further modelling and forecasting. ArcView software package wasused for data set management and visualization.     

Equipment failures and their contribution to industrial incidents and accidents in the manufacturing industry

Accidental events in manufacturing industries can be caused by many factors, including work methods, lack of training, equipment design, maintenance and reliability. This study is aimed at determining the contribution of failures of commonly used industrial equipment, such as machines, tools and material handling equipment, to the chain of causality of industrial accidents and incidents. Based on a case study which aimed at the analysis of an existing pulp and paper company's accident database, this paper examines the number, type and gravity of the failures involved in these events and their causes. Results from this study show that equipment failures had a major effect on the number and severity of accidents accounted for in the database: 272 out of 773 accidental events were related to equipment failure, where 13 of them had direct human consequences. Failures that contributed directly or indirectly to these events are analyzed.     

中国陆地生态信息空间化技术研究(Ⅰ)——气象/气候信息的空间化技术途径

论文提出了构建中国陆地生态系统空间化信息系统的基本设想,并且在回顾国内外气象/气候信息空间化研究的现状基础上,评价了已有的气象/气候信息要素空间化技术的发展,探讨了中国陆地生态系统气象/气候信息空间化的技术途径,概要地介绍了研究小组在近年来的工作中所取得的阶段性研究成果,展望了这些成果的应用前景。我国陆地生态信息空间化技术研究和数据产品的开发是生态学、资源科学和环境科学发展的迫切需求。但建立一个适应于不同科学研究的精度、时空分辨率要求的陆地生态信息空间数据库需要较长期的努力和多学科领域的合作,也需要大量的作为科学研究基础数据平台建设的国家投资。     

汉江水污染控制信息系统GIS数据库的设计

利用组件MapObjects开发汉江水污染控制信息系统,在系统的数据库设计中,采用了异构数据模型,这种数据的组织方式,很符合所研究流域信息管理的特点,更能发挥汉江流域水环境专题GIS管理流域水环境信息的优势。该系统综合运用计算机信息技术,实现了汉江流域的水环境信息的集中、高效管理,以及流域水污染的预测、评价。为及时制定汉江流域的水污染预防和控制策略提供参考信息。     

大型公共建筑物火灾时人员疏散行为规律研究

根据大型公共建筑物建筑结构、人员分布情况及火灾发展的特点 ,笔者首先对建筑物进行空间模化 ,并建立相应的人员疏散行为数学模型。利用关系型数据库技术和 Mapinfo地图信息系统 ,进行大型公共建筑物火灾时人员疏散行为的计算机仿真及实例研究     

电梯系统综合安全评价方法的研究

针对传统电梯安全评价方法的弊端,提出以数据库的方式集合电梯系统的参数和安全要求、整合风险降低措施,进行电梯系统的风险识别,同时以数学语言对安全概念和现象的模糊性进行描述和运算,完成风险评估和风险评定的过程。笔者以提出的多因素风险评价的综合方法和系统安全评判为准则,实现电梯系统的综合安全评价方法。以轿厢系统作为应用实例,运用安全评价方法进行验证,结果表明:该方法对电梯安全评价的研究具有一定的参考作用。     

International Comparison of Occupational Safety and Health Research—A Review Based on Published Articles

A comparison of international literature in occupational safety and health (OSH) research over the years from 1980 to 1998 was conducted. The comparison is based on the different languages of the over 35,000 articles, which were collected from different databases. The distribution of languages in the analyzed data has to be considered carefully with respect to the original purpose of the data collection and the specific role of the international publication language, English. The comparison shows that in several aspects OSH research does not differ in different publication languages. In some methodological aspects, and in specific objects of research, differences between articles published in different languages can be found.     

SWAT模型数据库的构建——以赵王河流域为例

近年来,SWAT模型被广泛应用于水文、水利、面源污染等方面的研究,但是由于SWAT模型是美国农业部研究中心研制开发的,其基础数据也是以美国本土的数据为标准的,因此,为了提高模拟的准确性,需要建立研究区域的数据库。SWAT模型数据库非常庞大且对数据格式的要求也很严格,因此,其构建过程就成了很多研究人员的难题,针对这个问题,结合已有的数据库构建研究和赵王河流域SWAT模型的构建过程,提出了比较全面的SWAT模型数据库的构建方法。     

基于GIS的电力工程勘察信息系统设计研究

从分析电力行业工程勘察信息管理与利用现状入手,提出了基于地理信息系统GIS(以下简称GIS)的工程勘察设计一体化的设想,设计了工程勘察信息化集成应用系统的逻辑模型,阐述了系统所采用的组件式GIS和数据融合等关键技术,最后结合具体的工程实例,详细介绍了具有系统分析决策功能的任意工程地质剖面图的绘制和三维实体地层模型的构建...     

铁路轨道状态分析信息系统设计与实现

研究了轨道状态分析信息系统的设计与实现方法。利用检测数据作为分析轨道状态的出发点,研究轨道状态的变化趋势,在分析国内现有铁路工务管理系统中存在的数据资源分散、忽视历史数据积累等问题的基础上,阐述了构建铁路轨道状态分析信息系统的可行性和必要性,并采用数据仓库技术和地理信息系统(GIS)技术,从空间和时间两个维度分析数据,提出了建立轨道状态预测模型的趋势分析法。笔者研究的核心内容是如何在整合各类轨道动、静态检测数据及铁路运营数据的基础上,建立轨道状态预测模型,为掌握及预测轨道状态变化趋势提供可靠的分析工具。