Practice world

Civil Engineer Sigurd Hveem at the Norwegian Building Research Institute, BI, describes the laboratory and field tests carried out on the dynamic response of different lightweight timber floors to establish new design guidelines. NBI are also looking at theoretical calculation methods in order to predict the results obtained by measuring dynamic properties.     

现代测井技术发展的启示

测井技术是现代石油工业中高新技术含量最多的技术门类之一。现代测井技术是随着当代基础学科和其它技术学科的飞速发展而诞生、发展的。现代测井技术经历了数字测井、数控测井和成象测井3个发展阶段，在石油与天然气的勘探开发中已发挥了极为重要的作用。通过引进、消化、吸收、改进国外现代测井技术，我国测井界研制与开发了新型的测井仪器和信息处理系统，目前已成为世界四测井强国之一。必须加强现代测井技术的基础实验和前沿技术的研究和投入，创建与发展中国的新型现代测井技术，参与国际的竞争。     

选择的逻辑

在现代艺术不断分化和变异的情景下，讨论现代艺术博物馆和建筑师所作的选择。     

开发人力资源推动职教发展

论述了随着我国社会主义市场经济的建立和推进，人力资源的利用、管理的重要意义日益突显，提出发挥资源优势对于推动职业教育发展具有十分重要的意义。     

VOC Emissions after Building Renovations: Traditional and Less Common Indoor Air Contaminants,Potential Sources,and Reported Health Complaints

Abstract Volatile organic compounds (VOCs) were measured in the air of 51 renovated rooms in Schleswig-Holstein. The buildings examined were of different types – private flats, schools, kindergartens, office buildings – the only common characteristic being that they had all been renovated within the last two years. Among the dominating substances in the 46/51 complaint cases were well-known substances such as alkylbenzenes or monoterpenes at high concentrations but also less common substances, i.e. those which have only recently been reported as indoor air contaminants, for example phenoxyethanol, 2-(2-butoxyethoxy)-ethylacetate (butyldiglycolacetate) or longifolene (Mohr, 1994) at remarkable concentrations. A tentative investigation was made to identify the simultaneous occurrences of the different substances, especially the uncommon ones with their potential sources, as well as health impairments. Finally, VOC emissions from two carpet glues, suspected during the investigations of playing a role as a potential source of the less common substances, were carefully measured under test chamber conditions. This additional laboratory experiment was made to verify the tendency shown in the field study that modern ecological building materials contain less volatile and less common substances but with increased indoor persistence, that could partially account for the increasing number of complaints in relation to the SBS phenomenon.     

日伪时期日本对哈尔滨工商业的掠夺及其影响

随着中东铁路的建成,原本水陆交通发达的哈尔滨城市在短短二三十年内迅速发展为商业核心城市,在远东地区颇有影响。诸多知名国际公司纷纷入驻哈尔滨,彼此竞争逐利,同时也刺激中国民族工商业发展,使哈尔滨工商业表现为多元的特点。九一八事变后,日本独占哈尔滨,开始寻求垄断、掠夺和独占哈尔滨工商业,加以改造支撑日本继续发动侵略战争。至此,哈尔滨城市发展所体现的“现代城市化”进程被打断,又回到了封闭的状态。     

上海南京大戏院建筑研究

20世纪20—30年代,上海戏剧业和电影业非常兴盛,同时在这一时期,上海的各种建筑流派异彩纷呈,建筑技术亦突飞猛进。也就是在这一背景下,上海新建了一批较高水平的近代化剧院。其中,南京大戏院就是这些剧院中的典型代表,具有独特的历史价值和艺术价值。该戏院现保存完好,1989年被列为上海市文物保护单位。该文在现场调查和文献收集的基础上,分析了南京大戏院的建设背景、选址规划、平面设计、立面设计、剖面设计、建筑风格、细部设计等,对于研究中国近代剧院建筑的发展有着一定的历史意义和学术价值。     

古典艺术融入现代公园--记静安雕塑公园梅园设计

现代城市公园景观设计在尊重自然的基础上适当加入了人文活动气息,是对老城区的一个合理继承,也是现代城市发展的必然阶段。可将古典艺术融入现代城市公园,使之在钢筋混凝土的禁锢中依旧能保留一个城市的文化底蕴。     

荟萃常规与现代设计精华 引领现代机械设计新潮流——评《机械设计手册》第5版

介绍了闻邦椿院士主编、机械工业出版社出版的大型工具书《机械设计手册》第5版。该手册涵盖机械常规设计又全面涵盖现代设计,具有新颖独特的总体结构和科学、先进、实用、可靠的内容,尤其是运用系统工程理论科学地分类并编入的21种现代设计方法,论述机械产品综合设计方法及在大型、复杂、现代机械的设计应用等具有创新性。该手册将对我国机械设计尤其是现代机械创新设计起指导和示范作用,并将为提升我国机械设计工作的现代化水平做出重要贡献。     

用于细胞三维结构观察的现代显微影像仪器及相关技术

细胞三维结构的观察分析能提供更多细胞显微水平结构和功能的信息。现代显微影像仪器及相关的三维重建等技术是研究细胞三维结构的有力工具。本文概述多种可用于细胞三维结构观察的显微工具,简单介绍其原理、优势、最新技术动态及应用领域等。