Conception et réalisation d'une base de données géologiques et géotechniques orientée vers la cartographie géotechnique: Application a la ville de Tunis (Tunisie)

The concept and implementation of a geological and geotechnological data base system is presented. The various systems data and parameters are defined and organized in separate files. An example of the application of this data base system is given using data gathered for the city of Tunis.     

La microfaune des boues activees. Etude d'une methode d'observation et application au suivi d'un pilote en phase de demarrage

The microfauna of activated sludge is well known as a potential indicator for operational control of biological treatment systems. An experiment was carried out during start up of an industrial scale pilot plant which was led with municipal sewage. Density of microfauna was evaluated using a counting chamber technique, and the results correlated with physicochemical factors. It was found that: the counting chamber technique is quite reliable provided the investigated volume reaches 10 mm³; grouping of microfauna by trophic characteristics makes the observation easier for the non-specialists without loosing too much information: and the evolution of microfauna is determined by a set of parameters for which epuration yield does not play a major role.     

《预制组合立管技术规范》GB50682—2011编制与介绍

高层建筑高度高,管井管道密集,传统管井技术已不能满足管线布置要求。住房和城乡建设部建标[2009]88号文件将《预制组合立管技术规范》GB50682—2011列入国家规范编制计划,由中建三局第一建设工程有限责任公司、同济大学等单位编制,将于2012年1月1日实施。介绍了规范编制思路与主要内容,指出预制组合立管技术的适用条件、预制组合立管的设计原则与方法、预制组合立管设计的荷载计算、预制组合立管管道与其支架的制作和安装工艺,以及预制立管试验与验收方法等。该规范独创了密集立管与主体结构同步安装的施工体系,可加快施工速度、降低管井作业风险、提高工程质量。     

多排螺旋CT血管成像诊断急性消化道出血的价值及相关进展

急性消化道出血可伴有血容量迅速减少引起的急性周围循环衰竭，为临床常见急症，其病死率较高，早期诊断及处理十分关键。MDCT具有简单、无创、扫描范围大、快速、准确性高的特点，适于急诊使用。