公共建筑与住宅建筑非传统水源利用技术分析

对在公共建筑与住宅建筑中利用非传统水源的技术进行了比较和分析,着重研究了雨水、中水和海水利用技术,指出了各项技术的优缺点和适用条件。结果表明,采用雨水利用技术时,可以因地制宜采用与直接利用、渗透、调节等功能相关的技术组合;采用中水回用技术时,可采用有发展前景的膜生物反应器技术,也可采用生物接触氧化或混凝沉淀等技术;采用海水利用技术时,可根据各种技术特点选用多级闪蒸、低温多效、反渗透等技术,另外,用清洁能源淡化海水是海水淡化技术的发展方向。实践中选用非传统水源利用技术时,应综合各种因素,进行全面比较。     

城市河道的景观型堤防设计

针对城市河道的堤防成为隔阻视线通达水岸空间的屏障,影响滨河景观建设和亲水空间营建建设的不利因素,提出在满足防洪功能基础上,综合考虑堤防自身和与周边环境融合的景观价值,以及利于植物生长、生物生息的生态价值,营建景观型堤防的理念。阐述了合理确定适宜的堤线位置,选择理想景观型堤防材料的方法;并在实践中总结或创新了复式断面营建亲水空间,多种形式组合处理堤坡,以及错层建筑分隔法等消除堤防高差视觉不利影响的方法。     

Examination of thermal comfort in a hospital using PMV-PPD model

In this study, the performance of air conditioning system and the level of thermal comfort are determined in a state hospital located in Kermanshah city in the west of Iran in winter and summer using the Predicted Mean Vote (PMV) model which has been presented by ISO-7730 (2005). The Predicted Mean Vote (PMV) and the Predicted Percentage Dissatisfied (PPD) indices were computed using the data acquired from the experimental measurements performed in the building. The results showed that the values of PMV in some parts of the building, both for men and women, are not within the standard acceptable range defined by ISO. It was found that the most thermal problems in winter occur in morning work shift, and the worst thermal conditions in summer occur in noon work shift. The t-test results revealed that there is no noticeable difference between the thermal conditions of some rooms and those of the surroundings.     

Open-loop and feedback-controlled mouse cursor movements in linear paths

Path length (A), path width (W) and movement direction (θ) are identified as the main factors affecting visually-controlled movement times in linear paths. Effects of A and W are well described by Drury's ( 1971 . Movements with lateral constraint. Ergonomics, l4 (2), 293-305.) model in which movement time is linearly related to the ratio of A/W. At low A/W values, departure from linearity has been identified but not investigated in detail. Data are presented for both open-loop and feedback-controlled movements in linear paths at 0, 60 and 150° movement directions. Movement amplitude and path width were varied over a wide range to determine the effects of A and (A/W) on movement time. Movements were found to be made ballistically or in open-loop mode when the ratio (A/W) was less than about 8 to 10 and the movement times were linearly related to √A for all angles of movement. Feedback-controlled movements followed Drury's law; ballistic movements had movement speed linear with √A. PRACTITIONER SUMMARY: Many tasks require manoeuvring equipment or devices through a path of limited width. These movements can be made with or without feedback control, depending on the path constraints. The conditions for the two forms of movement are determined in this research.     

基于回归分析的会展产业链互动关系的实证研究

会展经济是城市经济发展中的新兴动力。上下游会展企业构建了会展产业链,会展产业链的效率直接影响会展企业的竞争力。通过问卷调查的方式,采用计量模型定量分析了会展产业链相关因素。实证研究表明：企业认知资本、探索性学习资本、企业发展资本和企业人力资本变量与会展产业链核心竞争力存在着正相关关系;会展企业的合作频率与合作企业抱着共赢的心态、有共同语言能够有效沟通、关注会展企业现有项目的市场、高层管理者具备完备的知识结构、高层管理对会展创新活动的支持和参与等因素存在着正相关的关系。为此,在核心竞争力的构建上,会展企业应该关注产业链上相关因素的正相关作用。     

传统吉祥图案在古典建筑装饰中的应用

古典建筑中的吉祥图案是建筑的重要组成部分,凝结了中国传统文化的精髓．本文简单介绍了传统吉洋图案的产生背景及寓意,并从屋顶、门窗、铺地设计等方面对吉祥图案在古典建筑装饰中的应用进行了分析．     

三合一建筑的安全现状及管理对策

三合一场所是指集生产、住宿、仓储为一体的经营性场所。通过对三合一场所消防安全现状的分析,针对存在的问题,进而提出有效的破解思路和对策,从而为政府和消防部门的整治提供了依据,有助于消除火灾隐患,减少火灾事故的发生。     

似椭圆法留设保护煤柱及精度分析

针对目前传统留设保护煤柱的方法存在的问题进行了分析,基于保护地面一点的原理,得出了保护地面一点的公式,进而提出了似椭圆法留设保护煤柱的原理,给出了留设保护煤柱的方法与步骤.实例分析表明,与传统垂直断面法相比,似椭圆法留设保护煤柱可以大大解放“三下”呆滞煤量.依据保护煤柱围护带留设的目的,通过对似椭圆法留设保护煤柱的精度进行分析,确定了似椭圆法留设保护煤柱围护带的宽度,并对其围护带宽度的合理性与适用性进行了探讨.     

生土围护结构的等温吸湿性能的实验研究

生土围护结构建筑是一种独特的生态型居住建筑．为了定量地研究其室内热湿环境，确定生土围护结构建筑材料的热湿物理性质参数是一项基础工作．建筑材料的吸湿特性可以用材料的等温吸湿曲线表征，本文通过实验研究了生土围护结构建筑材料的等温吸湿过程，利用计算机软件进行了曲线拟合，得到了生土建筑材料的等温吸湿曲线函数关系式，为定量地研究生土建筑室内热湿环境莫定了科学基础。     

智能建筑设备的电气保护与接地初探

在供配电系统中，用电的可靠性极其重要，供配电系统中合理的接地系统是决定供电系统安全可靠的重要因素，对于功能的实现往往依赖用电设备安全运行的智能建筑来说，用电可靠性尤为重要，智能建筑中安装大量不同类型的智能设备，因而选择一个合适的设备接地系统类型对于供配电系统的安全可靠具有重要意义。