大型地下汽车库泡沫喷淋灭火系统设计探讨

阐述了自动喷水——泡沫联用灭火系统的适用条件及工作原理。通过某大型地下汽车库自动喷水——泡沫联用灭火系统的设计实例,探讨了泡沫喷淋灭火系统在系统选择、设计计算及参数选择中的一些思考。     

I类地下汽车库泡沫喷淋灭火系统设计探讨

本文阐述了自动喷水——泡沫联用灭火系统的适用条件及工作原理。通过某I类地下汽车库自动喷水——泡沫联用灭火系统的设计实例,对泡沫喷淋灭火系统在系统选择、设计计算及参数选择进行了探讨和说明。     

高倍泡沫灭火技术在商场中的应用

高倍泡沫灭火技术在商场中的应用佳木斯市消防支队周军高倍泡沫灭火系统适用于工业厂房、固体物质仓库、可燃、易燃液体仓库、地下工程及建筑、矿井、液化石油气贮罐等，目前国外已普遍采用。但我国，在商场中的应用还较少。本文就高倍泡沫灭火系统在商场中的应用作些介绍...     

高倍泡沫灭火系统设计问题探讨

本文针对高倍泡沫灭火系统设计过程中遇到的问题 ,诸如高倍泡沫灭火系统型式的选择 ,主要设备的选取、系统及各设备参数的确定、火灾报警后灭火系统的响应时间等 ,通过相应的图示 ,一系列实验数据及近年来的设计实践 ,提出了切实有效的解决方法。通过经济分析的方法 ,论证了高倍泡沫灭火系统的先进性。     

谈浮顶储罐泡沫灭火系统设计

本文论述浮顶储罐低倍数泡沫灭火系统的设计要点,阐述《低倍数泡沫灭火系统设计规范》中有关修订条文及其依据,同时介绍了发达国家的有关标准的情况。     

某地下车库自动喷水-泡沫联用系统设计简介

以鼎太风华地下车库灭火系统设计为例,就选用何种灭火系统进行了探讨,分析了自动喷水—泡沫联用系统的工作原理,介绍了该系统的主要设计数据,研究了喷头、泡沫液及其他组件的选择与要求,最后对相关参数进行了设计计算。     

高倍数泡沫灭火系统设计简介

高倍数泡沫灭火系统具有发泡倍数高、灭火范围广、灭火效能强、抗复燃能力强、水渍损失小、成本低、无毒、无污染、环保等特点，是较好的灭火设施和替代哈龙的理想产品。简单介绍高倍数泡沫灭火系统的灭火机理、灭火特点、系统类别、系统组成及设计计算等方面。     

高倍数泡沫灭火系统设计简介

高倍数泡沫灭火系统具有发泡倍数高、灭火范围广、灭火效能强、抗复燃能力强、水渍损失小、成本低、无毒、无污染、环保等特点,是较好的灭火设施和替代哈龙的理想产品。简单介绍高倍数泡沫灭火系统的灭火机理、灭火特点、系统类别、系统组成及设计计算等方面。     

码头的泡沫灭火系统设计

介绍了泡沫炮应用于码头泡沫灭火系统的设计实例，就设计中遇到的问题进行了分析总结，并对《石油化工企业设计防火规范》的完善提出了一些建议。     

烟烙尽气体灭火系统在工程机械涂装车间的应用

简要介绍了烟烙尽气体灭火系统的优点,分析了涂装车间的消防要求及工程机械喷漆室的特点,并通过实例说明了烟烙尽气体灭火系统在工程机械涂装车间的应用情况。     

污泥制砖存在问题浅析

污泥制砖符合国家的环保政策,但在技术方面还待进一步创新和突破。为此分析了污泥制砖在技术方面、环保方面和社会大众认可方面存在问题及相应的改进措施。     

干旱区绿洲环境下的新疆小城镇建设投资

一、研究区域基本现状新疆地处欧亚大陆腹地,地貌轮廓表现为“三山夹两盆”,山地与平原的面积大致各占50%,镶嵌于戈壁沙漠的绿洲仅有7万平方公里。新疆土地面积166.49万平方公里,占全国总面积的六分之一。气候干旱,荒漠广布,是中国最大的干旱区,是亚洲干旱核心区,也是世界上著名的干旱区之一。水资源短缺,生态极度脆弱。新疆2004年底有1950万人,人均GDP已经超过了1000美元,城镇化进入了快速发展阶段,特别是小城镇的发展速度较快。但新疆特殊的干旱区绿洲环境,使得小城镇的发展存在许多问题。一是城镇规模小而散,基础设施配套差,城镇集散和…     

Levels of manganese in the urine of female farmers in non-polluted regions in Japan

Nearly 1500 urine samples were collected from female farmers in eight regions widely scattered in the islands of Japan in the winter of 1987-1988. The samples were analysed for manganese by wet ashing and flameless atomic absorption spectrophotometry under strict quality control. The values observed after adjustment for a specific gravity of 1.016 were distributed log-normally with a geometric mean of 0.65 microgram/l and a geometric standard deviation of 2.47. There was no effect of aging or any effect of smoking on the urinary manganese concentration. The inter-regional difference may be present but not yet conclusive. As no sex difference was observed in a previous study, it may be possible to deduce that the value may possibly stand for the "background" level of both men and women, either smoking or non-smoking, among the general Japanese population. The observed value is discussed in comparison with values reported in the literature.     

Intersections of inequality in homeownership in Sweden

Abstract

Inequalities relating to ownership of housing have become a major issue de jour in many Western societies. This article examines how the distribution of homeownership in Sweden relates to two factors widely seen as significant to such inequalities, namely parental tenure status and place of birth. We use longitudinal registry data to examine the bearing of these two factors on individual-level tenure progression since the beginning of the 1990s for persons at different stages of their housing careers. We extend existing understandings of Swedish homeownership patterns by demonstrating that inequalities relating to place of birth and parental tenure intersect with one another in ways that substantially advantage certain subgroups while disadvantaging others, and by demonstrating that experiences of entry into homeownership have in recent years been changing in markedly different ways for these different subgroups. Overall, Swedish homeownership inequalities, far from dissipating, appear to be hardening along existing lines.     

Typification of Fires in Buildings in Spain

Although the Dirección de General de Protección Civil (DGPC), an agency of the Spanish government, has been responsible for the collection of data and the statistical analysis of fires since 1985, it has not as yet issued any reports. It is true that a couple of studies have been made, but in neither case did they use a standardized methodology but relied simply on the heterogeneous information provided by the fire brigades which cooperated in the studies. At that time Spanish fire brigades did not have special units for professional fire investigation, nor was the information derived from standardized methodologies suited to research purposes. In addition, information was extremely scarce and basic, focussed only on the fire, the use of the building and personal data of the victims. In this context, the project for a Fire Investigation Unit in the Fire Brigade of Málaga (the sixth largest Spanish province in inhabitants) was set up. Although inspired in the methodologies used in the USA and in the UK, the aim was to create a customized methodology for the first scientific investigation of fires in Spain. Our research was conducted in 2007. Using the methodologies of the USA and the UK, our own methodological approach and the Spanish regulations, we drew up a questionnaire with 110 variables arranged into 6 modules. We studied 96 fires out of the 154 emergency fire calls received in 2007, having omitted some emergency calls for various reasons. Our results revealed that it was necessary to generalize the installation of fire extinguishers in residential buildings, to train the general public in the use of these devices, to promote the use of fire and smoke detectors in residential buildings, to encourage the inspection and control of old electric installations and to monitor the new installations, to generalize the implementation of emergency and evacuation plans and to design new systems and materials for the cabinets where hand-held extinguishers are stored.     

莳花在城市绿化中的应用

目的:花化、香化、彩化已成为城市园林绿化的主要趋势,也是为满足人们对环境要求越来越高的一种心境。方法:选择采用莳花能表现出品种繁多,色彩艳丽等不同的方式,从而能在很大程度上丰富了植物造景的层次感要求。结果:能使其达到美化环境、增添节日气氛、提高绿化品质等方面有着突出的作用。结论:莳花造景对城市的美化可达到立杆见影效果,从而提高城市的形象和品位。     

分光光度法测水中余氯

介绍了用双硫腙分光光度法测定水中余氯的新方法，阐述了其测定试验过程，根据试验结果显示，其结论符合国家标准，表明该方法可用于自来水等样品中余氯含量的测定，结果比较准确。     

日本城市浅层地下空间利用的新成就

本文结合日本川崎市站前广场和神户市哈巴兰德地区的立体化再开发，分析介绍当前日本浅层地下空间开发利用的成就和特点。     

遗传算法在边坡稳定系数计算中的应用

边坡稳定性的关键问题是确定最危险滑动面(潜在最危险滑动面)和边坡的稳定系数。国内外一般是采用先假定边坡滑移模式,然后近似确定最危险滑动面,再求近似的边坡稳定系数的方法来分析边坡的稳定性,但假设的边坡滑移模式难以反映边坡滑移的实际状态。因此本文探索利用遗传算法搜索最危险滑动面,并得到最小稳定系数及对应的最危险滑动面曲线,取得了较好的效果。     

建筑设计创作中的地域文化探索——合肥文博苑创作体会

探索地域文化的发展是民族发展的重要课题。合肥文博苑建立在新城区,作者在其建筑与环境的创作中,既保持合肥地域文化传统,又体现现代文化精神。