井下煤炭自燃的预防措施

煤炭自燃初期的识别方法有直接感觉、测定矿内空气成分的变化、测定围岩温度、测定煤炭氧化速度四类。其中测定矿内空气成分的变化，是早期识别和预报自燃火灾应用最广、而且比较叮靠的方法。     

电气设备老化程度的识别方法

近几年来,电气火灾的发生率一直占火灾总数的21％左右,而引起电气火灾的原因有设备老化、短路、超负荷、接触不良等,其中电气设备老化是主要的祸首。因此,要想让电气火灾远离我们,就必须学会识别电气设备的老化程度,并采取相应的预防措施。     

HAZOP分析技术改进与推广研究

危险与可操作性研究（HAZOP）是以系统工程为基础的一种对常用化工装置定性风险识别方法。它的基本过程是以关键词为引导,对过程中工艺状态的变化（偏差）加以确定,找出装置及过程中存在的危害。HAZOP分析法应用在初步设计阶段,以检查初步设计存在的问题。目前国外石油化工公司（BP公司、菲利普、壳牌公司等）都大力推广HAZOP法,我国使用推广还十分有限。以下为读者详细介绍HAZOP分析技术的应用特点、现状以及所做改进与推广。     

An novel identification method of the environmental risk sources for surface water pollution accidents in chemical industrial parks

The chemical industry is a major source of various pollution accidents. Improving the management level of risk sources for pollution accidents has become an urgent demand for most industrialized countries. In pollution accidents, the released chemicals harm the receptors to some extent depending on their sensitivity or susceptibility. Therefore, identifying the potential risk sources from such a large number of chemical enterprises has become pressingly urgent. Based on the simulation of the whole accident process, a novel and expandable identification method for risk sources causing water pollution accidents is presented. The newly developed approach, by analyzing and stimulating the whole process of a pollution accident between sources and receptors, can be applied to identify risk sources, especially on the nationwide scale. Three major types of losses, such as social, economic and ecological losses, were normalized, analyzed and used for overall consequence modeling. A specific case study area, located in a chemical industry park (CIP) along the Yangtze River in Jiangsu Province, China, was selected to test the potential of the identification method. The results showed that there were four risk sources for pollution accidents in this CIP. Aniline leakage in the HS Chemical Plant would lead to the most serious impact on the surrounding water environment. This potential accident would severely damage the ecosystem up to 3.8 km downstream of Yangtze River, and lead to pollution over a distance stretching to 73.7 km downstream. The proposed method is easily extended to the nationwide identification of potential risk sources.     

生物识别技术的最新发展与应用

正随着科学技术的日趋成熟,生物识别技术在越来越多的场合得到了应用。与传统的身份认证方法相比,生物识别技术具有独特的优势:人的生物特征是独一无二的,所以无法复制和假冒。传统的身份认证方法可能出现密码与他人重复,但生物特征却肯定是不同的,而且几乎终生不变;此外,生物特征本来就是人自身的,能够随身携带,不会出现卡片丢失、被盗、被复制,密码遗     

ISO14001标准中环境因素的识别与评价方法研究

全面识别组织的环境因素,准确评价重要环境因素是建立与保持ISO14001环境管理体系的基础.目前中国已有多个城市、开发区和风景区建立了区域性环境管理体系(简称REMS),该体系所涉及的环境因素范围广泛且数量众多,因此单独使用任何一种方法都难以达到对这种复杂体系的环境因素识别与评价的需要.在厦门鼓浪屿建立环境管理体系的过程中,提出了适合于REMS的环境因素分类与识别方法,并建一套由环境因素的法律法规符合性、可控制、重要度三个评价因子和多个评价准则构成的,定性与定量方法相结合的评价体系.     

人脸识别身份验证系统助推工地实现高效管理

近一两年来,北京、广东、江苏、福建、安徽、无锡等地的部分建筑工地都要求使用人睑识别考勤设备,进行考核和安全管理,一些地方的建设局为此还发了红头文件。在很早以前,人脸识别是我们在影视作品中才能看到的机要重地的门禁应用。如今,随着人睑识别技术的不断发展与成熟,人睑识别技术与产品的应用面不断扩大,在工地人们就可以感受到这种高科技技术带来的更多应用价值。本文结合飞瑞斯推出的基于人脸识别的身份管理系统在工地的应用做简单的介绍。