消防视频监摔

随着数字化与网络化视频监控技术、智能化控制技术及计算机网络互连技术的飞速发展与日益成熟，将图像网络监控技术运用于城市火灾安全防范系统，实现城市火灾预防和控制的现代化安全管理变成可行。以信息化带动消防工作的现代化，提高城市的火灾预警能力和消防部队快速反应、指挥调度能力，对保卫国家和人民群众的生命财产的安全有着十分重要的作用。     

中学生信息安全威胁及安全防范策略——评《信息安全技术》

正信息网络覆盖范围的不断扩大,使计算机网络几乎成为所有人生活中必不可少的一部分。在计算机网络的应用下,人们的生活、工作、学习也得到了多种便利。互联网的高速发展虽然拉近了人与人的距离,为人们提供了巨大的便利,但就中学生而言,他们判断网络信息安全的是非能力还较弱,面对复杂的网络环境,在计算机网络应用操作过程中有可能面临安全威胁。采取有效的措施防范信息安全威胁,提高中学生网络信息     

中职院校计算机网络安全技术应用与实践研究——评《计算机网络信息安全及管理技术研究》

正信息技术已经全面渗透到社会的各个层面,经济、科技、教育、生活等各领域都广泛应用计算机、智能手机和互联网技术。随着社会对计算机网络依赖程度的提升,网络安全技术也随之变得尤为重要,计算机网络技术专业作为中职院校的重要教学专业内容板块之一,应重视计算机网络安全技术的应用与实践问题,提高计算机网络安全技术水平和管理水平。《计算机网络信息安全及管理技术研究》一书对计算机网络安全问题进行了探讨与分析,包括安全技术和安全管理方面的内容,内容丰富且结构合理,思路清     

境外中资企业机构安全防范体系规范建设研究——以澳大利亚安全防范政策框架为例

正为什么建设安全防范系统?发生了哪些安全事件?要解决什么问题?希望达到什么目的?这些都是企业机构安全防范建设中都会遇到的一些问题。企业机构安全防范体系建设不仅仅是安装一组安全防范设备,或者建设一套安全防范系统,或者是安全防范系统的日常运营和维护;而是贯穿企业机构所有层次、涉及企业机构所有部门,集成安全防范文化、安全风险管理机制和安全     

安全防范“四化”与政府规制（一）

改革开放以来，安全防范经历了迅速发展的20年。我们在总结20年发展经验的基础上，试图探索安全防范的规律和发展方向，以迎接21世纪的挑战，维护社会稳定，实现人民希望提高生活安全品质的愿望。为此，本文提出了安全防范商品的市场化、安全防范社会化、安全防范规模化、安全防范网络化及政府对它们进行规制的观点。     

加强GB50348-2018《安全防范工程技术标准》贯彻实施全面提升安全防范工程全生命周期质量水平

正GB50348-2004《安全防范工程技术规范》是我国安全防范领域第一部工程建设技术标准,首次将我国安全防范工程技术标准纳入国家工程建设标准体系,同时将安全防范工程建设纳入了单位或部门工程建设的总体规划,被评价为我国安全防范技术发展史上重要的里程碑。GB50348-2004《安全防范工程技术规范》对安全防范工程现场勘查、设计、施工、检测、验收等环     

安全防范产业发展现状及其技术应用

本文针对近几年安全防范产业的发展情况,综合阐述了安全防范产业的技术现状和市场状况,对今后几年安全防范产业的发展形势进行了展望,并就安全防范产业在智能交通系统(ITS)和智能楼宇系统中的技术原理和现状作了详细介绍.     

境外中资机构安全防范系统构建

<正>境外中资机构应在安全防范目标、安全防范原则的指引下,开展安全防范系统的建设工作,包括:安全工作的边界定义、安全风险评估、安全需求分析、系统建设及评价、系统安装测试、系统运行维护。安全防范系统的正常运行,同时还离不开一系列的保障措施,包括:安全防范监督、安全防范检查、安全防范评估、安全防范培训和安全防范氛围的营造。     

智能建筑安全防范系统的评价指标体系研究

围绕智能建筑的安全防范系统,依据安全防范系统的理论,综合分析安全防范系统的人防、物防和技防三种防范手段,构建了智能建筑安全防范系统的综合分析框架。借鉴系统安全中"人、机、环境"以及管理的分析方法,从人的因素、机的因素、环境因素、管理因素以及其他因素等五个方面出发,建立了智能建筑安全防范系统的评价指标体系。并采用层次分析法和模糊综合评价方法构建了智能建筑安全防范系统的综合评价模型。然后以此为基础,结合实例分析来说明评价指标的有效性,最后针对实例提出了对策措施。     

智能家居的新征程与安防企业的融入之道

一、认识智能家居 智能家居（又称智能住宅）是一个居住环境,是以住宅为平台,将家居生活有关的设备利用综合布线技术、网络通信技术、安全防范技术、自动控制技术、音视频技术等技术进行集成后形成智能家居系统的居住环境,通俗地说,它是融合了自动化控制系统、计算机网络系统和网络通讯技术于一体的网络化智能化的家居控制系统。而在国内,智能家居不是一个单独的产品,也不是传统意义上的“智能小区”概念,而是基于小区的多层次家居智能化解决方案。     

油浸变压器排油注氮装置在500kV变电站的设计与应用

在分析500kV变电站主变压器消防系统的现状,比较3类消防系统优缺点的基础上,详细论述了主变排油注氮装置的结构组成、工作原理、参数计算、控制系统设计以及需要注意的事项等,为下一步排油注氮装置的推广应用打下基础.     

HAZOP结合What-if方法在某延迟焦化装置除焦中的应用

为克服传统危险与可操作性（HAZOP）定性分析方法在复杂操作、间歇作业等过程中使用的局限性,提出在传统HAZOP定性分析方法的基础上结合What-if（故障假设）方法,对人的不安全行为和操作规程不完备所导致的风险后果分析作出补充。详细说明其技术原理、工作流程等使用细节,系统阐述该方法与传统HAZOP定性分析方法的区别,并在某延迟焦化装置的除焦操作的风险分析中应用。经分析,识别出在“给水-泡焦”节点,有“操作规程错误”场景2项,“操作规程不具体”场景1项,不存在“操作人员未按操作规程执行”场景。研究结果表明:本文方法有效且具有较好效果,可以广泛应用于操作规程/作业指导书审查、作业过程隐患排查等方面,帮助企业开展操作层面的风险识别与管理,提升企业的生产安全水平。     

潞安矿区煤层渗透率的各向异性特征实验研究

为了研究原位煤体渗透性的各向异性特征,以山西潞安常村矿3号煤层圆柱试样为对象,利用TCQT-Ⅲ型低渗煤层气相驱替增产试验装置,对煤样进行加载,并以氮气注入压力2.0 MPa的条件下,分析垂直层理和平行层理2个方向的煤体变形和渗透率变化特征。实验结果表明:煤样在加载过程中,平行和垂直层理煤样渗透率均随着有效应力的增大而减小,平行层理方向的渗透率始终大于垂直层理方向,应力加载初期渗透率急剧下降,最后逐渐趋于平缓;径向应变的增加量与渗透率呈正相关性,且平行层理相关性大于垂直层理;沿平行层理方向的裂隙度大于沿垂直层理方向,沿垂直层理方向的应变量大于沿平行层理方向;应变增加量均随有效应力的增加而逐渐减小。研究结果可为煤层井网布置及优化提供参考。     

Nighttime pedestrian fatalities: A comprehensive examination of infrastructure,user, vehicle,and situational factors

Introduction: Pedestrian fatalities in the United States increased 45.5% between 2009 and 2017. More than 85% of those additional pedestrian fatalities occurred at night. Method: We examine Fatality Analysis Reporting System (FARS) data for fatal pedestrian crashes that occurred in the dark between 2002 and 2017. Within-variable and before/after examinations of crashes in terms of infrastructure, user, vehicle, and situational characteristics are performed with one-way analysis of variance (ANOVA) and two-sample t-tests. We model changes in crash characteristic proportions between 2002–2009 and 2010–2017 using linear regressions and test for autocorrelation with Breusch-Godfrey tests. Results: The increase in fatal nighttime pedestrian crashes is most strongly correlated with infrastructure factors: non-intersection unmarked locations (saw 80.8% of additional fatalities); 40–45 mph roads (54.6%); five-lane roads (40.7%); urban (99.7%); and arterials (81.1%). In addition, SUVs were involved in 39.7% of additional fatalities, overrepresenting their share of the fleet. Increased pedestrian alcohol and drug involvement warrant further investigation. The age of pedestrians killed increased more (18.1%) than the national average (3.2%). Conclusions: By identifying factors related to the increase in nighttime pedestrian fatalities, this work constitutes a vital first step in making our streets safer for pedestrians. Practical Applications: More research is needed to understand the efficacy of different solutions, but this paper provides guidance for such future research. Engineering solutions such as road diets or traffic calming may be used to improve identified infrastructure issues by reducing vehicle speeds and road widths. Rethinking vehicle design, especially high front profiles, may improve vehicle issues. However, the problems giving rise to these pedestrian fatalities are likely a result of not only engineering issues but also interrelated social and political factors. Solutions may be correspondingly comprehensive, employing non-linear, systems-based approaches such as Safe Systems.     

Footedness and Mounting—Short Review and Two Case Studies

Footedness is a personal quality like handedness. Footedness may be associated with moving ability during mounting, dismounting, and jumping movements. Occupational accidents have occurred during movement at different working levels, during the use of access and exit systems, and during the mounting of vehicles. Aging can also affect accident risk and body laterality. For example, falling accidents on stairs are common among the elderly. One reason for accidents may be that the structure of the access system or stair system is unsuitable for individual moving patterns depending partly on body laterality. Footedness and the way the feet are used may be contradictory to the demands of the moving situation, especially during uncommon or rapid situations. This contradiction may trigger disturbance during moving. The aims of this pilot study were (a) to review the literature briefly and (b) to describe the use of the dominant and nondominant foot by farmers and the elderly when mounting a tractor and stairs, respectively. The study also gives ideas for future studies based on both (a) and (b).     

AHP与GA-SVM耦合模型在滑坡预警中的应用*

为了减少滑坡造成的损失,提高滑坡预测的准确性,通过搭建灾害模拟平台获得滑坡的实验数据,在获得多组模拟实验数据后,分析各变量的特性。首先,通过层次分析(Analytic Hierarchy Process,AHP)算法,对滑坡进行危险度划分;然后,通过支持向量机(Support Vector Machine,SVM)建立模型,遗传算法(Genetic Algorithm,GA)再优化SVM参数,提出1种层次分析法与GA-SVM相耦合的模型。研究结果表明:AHP方法划分后的数据,通过GA与SVM结合建立的模型精度较好,实验预测结果与实际结果较为吻合,与单一SVM相比,精度更高,结果更好,更加适用于多变量的复杂非线性滑坡预警。     

Debunking the false dichotomy of leadership idealism and pragmatism: Critical evaluation and support of newer genre leadership theories

Leadership theories have shifted over the last few decades from a focus on managerial functions and economic leader–follower exchanges toward greater focus on the interpersonal dynamics occurring within the leadership process. Theories such as transformational, ethical, authentic, and other “newer genre” theories were created to address neglected topics such as leader vision and inspirational messages, transparency, emotional effects, morality, individualized attention, and intellectual stimulation. Critiques of these theories, however, have been raised. In this paper, we address five of those critiques and argue for the validity and practical effectiveness of the new genre theories. Further, we describe how newer genre leadership research should be viewed as a performative epistemology, entailing a process of co‐creation involving scholars and practitioners. Finally, from this view, we provide general ideas for leader development. Copyright © 2014 John Wiley & Sons, Ltd.     

Occupational Safety and Health in Finland

In Finland, occupational safety is the responsibility of the employer, while the occupational safety and health laws are enforced by the Labour Inspection Service, an organization of the state. The Labour Inspection is divided in 11 administrative districts, and it employs 360 professionals. They are mandated to carry out site visits without prearranged appointments to inspect safe work situations, working hours, construction safety, or any aspect of accident risks. The inspectors are also mandated to verify the existence of sufficient occupational health services as prescribed by the Occupational Health Services Act for all employees. The occupational health services are typically provided by enterprise-owned medical departments, by mutually owned health care centers, by private practitioners, or by municipal health care centers. The latter are required by law to provide all services as prescribed by the legislation to anyone who comes to the facility. This situation is prevalent in the countryside, where there are very few private caregiving centers. Declaring occupational accidents and disease cases is mandatory, and the Inspection districts examine all accidents to establish causes and consequences, and to initiate prosecution in case of criminal negligence. Labour Inspection Districts are also notified of the new occupational disease cases as they are declared to insurance companies. Insurance for occupational disease, accidents, and death is an obligation of the employer, although they can choose the insurance company. The medical confidentiality between the workers and their occupational health care providers is very strict. Official statistics are maintained by the state Statistics Finland organization, and they may be used, for example, for research purposes by scientific institutes like the Finnish Institute of Occupational Health. Construction industry accounts for 25% of all fatal accidents (120 cases per 1 million working hours), followed by mechanical, wood, metal, machinery, and pulp and paper industry (10% each of fatal accidents) with rates ranging from 100–160 cases per 1 million working hours. There are some 5,000 occupational disease cases per year (rate 22/10,000 employed). The major disease categories include repetitive strain injuries (1,300 cases), respiratory allergies (600 cases), occupational skin diseases (1,000 cases), and 900 cases of noise-caused hearing loss. In 1998, 589 cases of asbestos-related diseases were reported.     

森林地表火蔓延模拟方法及其计算机实现

进行了森林火蔓延的研究,对传统的经验公式和模型进行改进,明显发现改进的模型有更好的结果,用计算机巧妙准确地实现了模拟模型,在风力不是特别大,地形变化不是特别剧烈时,该模型有较高精度;并结合火蔓延的主要因素（气象因子、气候、地形等）,进行系统分析,写出算地,编制实现地表火蔓延的预测预报计算机系统软件。这对于有效的组织扑救、减少火灾损失、计算森林火灾的损失评估有重要意义。     

公路隧道火灾逃生疏散研究

以苍岭隧道为背景,首先采用经验计算理论和计算软件building EXODUS相结合的方式,从被困人员的安全疏散时间、高温烟气的影响、隧道横通道的利用率以及人员的疏散行为特性进行了研究。结果表明:中小规模火灾情况下的安全疏散时间控制在8 min之内,高温烟气影响不大,但横通道的利用率不平均,且人员疏散路线相对集中。然后对存在的逃生疏散问题提出针对性建议以及其他相关建议,旨在为更大程度降低事故的严重性和经济财产损失。