简易自动喷水灭火系统在中小型场所中的应用

通过中小型场所的火灾实体模拟试验,说明了在中小型场所中设置简易自动喷水灭火系统的可行性和重要性。     

建筑科学“三个走向”的发展趋势——走向自然共生、走向公共大众、走向地域文化

本文提出建筑科学大范围内发展趋势的“三个走向”,即走向自然共生、走向公共大众、走向地域文化,并以新世纪的新建筑实例说明这“三个走向”的发展趋势,这也是落实可持续发展战略的中心内容。     

北京远南大厦设计及其成败得失

介绍了北京南大厦供暖，空调通风，机械排风以及防排烟系统的设计概况，总结了设计中的成功经验，并结合运行情况，提出了一些在设计，生产，施工安装中应注意的问题。     

Effects of Air Inlet Configuration on Forced-Ventilation Enclosure Fires on a Naval Ship

The effects of air inlet configuration on pool fire behavior in a mechanically ventilated cabin were investigated. The closed cabin used was a model of a certain machinery cabin on a naval ship. Two air inlet configurations of one vent and two vents were taken into account together with five different elevations of air inlet. In one-vent cases, mass loss rate and gas temperature were lower and oxygen concentrations were higher than those of two-vent cases. With the increase of air inlet elevation, a sudden drop in average mass loss rate and peak temperature were found in the two-vent cases at the air inlet elevation of 1.56 m. In one-vent cases, a similar drop in average mass loss rate was found at the air inlet elevation of 0.88 m, while the peak temperature was almost unaffected by inlet elevation. According to temperature profiles and the characteristic parameter of the smoke layer stability, the formation of the smoke layer was destroyed by increasing the air inlet elevation or reducing the air inlets, and furthermore a more uniform distribution could be found. For the current cabin, the one-vent case with a lower air inlet elevation was recommended for smoke control, and the inlet should be set away from the essential equipment and the entrances of the cabin.     

GE板形模型的功能及应用

梅钢热轧板厂于2002年引进了先进的凸度仪、平直度仪及GE板形模型,采用模型对窜辊量与弯辊力进行设定与闭环控制,板形质量有了量化指标与控制手段,通过几年的应用与实践,对板形模型的工作原理有了一定了解,文章论述了模型的设定策略、分配策略及控制策略,并阐述了该模型在负荷分配的优化、轧辊磨损量的优化、F4～F6工作辊原始辊型的优化及轧制计划的优化等方面的应用.     

Structure and electrochemical properties of titanate perovskite with in situ exsolution as a ceramic electrode material

Journal of Electroceramics - In this work, the structure and electrochemical properties of titanate ceramics with in situ Ni exsolution are investigated to identify the structure-performance...     

闵行LNG汽车加气与灌装示范站低温预冷技术探讨

LNG(液化天然气)站的低温设备及工艺管道预冷是场站投产前的关键环节,以上海市闵行LNG汽车加气与灌装示范站工程站内低温设备及工艺管道预冷施工为例,分析阐述了LNG场站预冷的目的和原则,预冷的关键技术以及预冷后的注意事项等,并对工程进行总结归纳,对后续类似工程施工有一定指导作用。     

山西中部引黄工程小断面隧洞快速掘进施工方法

结合山西中部引黄工程的水文地质条件,分析了小断面隧洞快速掘进的施工难点及关键因素,并从施工部署、加宽段距离、工序衔接等方面,阐述了具体的施工方法,总结了施工安全、质量保障措施,实现了小断面隧洞的快速施工。     

土压平衡盾构机渣土运输系统设计

以某地铁线土压平衡盾构区间的渣土出运设计为例,介绍了土压平衡盾构的渣土运输系统,从渣土车选择、电瓶车运输能力选择等方面,阐述了电瓶车编组的方式,通过对其运输系统工效的分析,指出该工程采用的渣土运输设计方案,提高了盾构掘进速度,缩短了施工工期。     

农村及偏远地区饮用水除氟研究

研究了农村及偏远地区地下饮用水的除氟方法及其工艺流程、发展中的除氟新方法及新材料;分析了现有饮用水除氟设施存在的问题及其原因;提出了适合于农村及偏远郊区的除氟方法及其设施的发展方向.