建筑之“留白”——高层建筑中部透空设计分析

随着高层建筑建设数量的猛增,其自身的弊端也日渐突显。中部透空手法将中国画的留白思想拓展于建筑设计中,较好地缓解了高层建筑在生态、造型、功能等方面的不足,充分体现了对自然环境的尊重和可持续发展的理念

Kinetics of Vesicle Formation and Breakdown

利用停流装置研究了十二烷基硫酸钠(SDS)和十二烷基三甲基溴化铵(DTAB)复配形成囊泡的过程和囊泡破坏过程的动力学性质,并结合动态光散射技术和电子透射显微镜探索囊泡形成和囊泡破坏过程的机理.动态光散射和电子透射显微镜的研究结果表明囊泡的形成过程主要包括四个阶段:混合胶团→柔性的长棒状聚集体→"非平衡囊泡"→平衡囊泡,而与其对应的粒度分散度则呈现"单分散性→多分散性"的周期性变化规律.此外,动力学结果表明囊泡形成过程很长,但其活化能不大,这意味着囊泡形成过程的控制步骤可能不是活化能控制.而相对于囊泡的形成,囊泡的破坏过程是十分迅速的.A combination of stopped-flow,transmission electron microscopy and dynamic light-scattering techniques has been used to study the kinetics of vesicle formation and breakdown as well as the mechanism of vesicle formation and breakdown in DTAB/SDS aqueous solutions.The results show that the process of vesicle formation can be modeled as a sequence of distinct processes:mixed micelles→flexible stick-shaped aggregates→non-equilibrium vesicles→equilibrium vesicle system,and the evolution of particle dispersion degree appears to be a periodical change of "monodispersity→polydispersity".In addition,the kinetic analysis shows that the process of vesicle formation lasts for a long time.However,the activation energy of vesicle formation is not too high,which implies that the control procedure of the process is independent of activation energy.In contrast to the process of vesicle formation,vesicle breakup to mixed micelles appears to be a rapid process.厦门大学科技创新重点项目(No.XMKJCX20052001)资助项目

Kinetics of vesicle formation and breakdown

A combination of stopped-flow, transmission electron microscopy and dynamic light-scattering techniques has been used to study the kinetics of vesicle formation and breakdown as well as the mechanism of vesicle formation and breakdown in DTAB/SDS aqueous solutions. The results show that the process of vesicle formation can be modeled as a sequence of distinct processes: mixed micelles --> flexible stick-shaped aggregates --> non-equilibrium vesicles --> equilibrium vesicle system, and the evolution of particle dispersion degree appears to be a periodical change of "monodispersity --> polydispersity". In addition, the kinetic analysis shows that the process of vesicle formation lasts for a long time. However, the activation energy of vesicle formation is not too high, which implies that the control procedure of the process is independent of activation energy. In contrast to the process of vesicle formation, vesicle breakup to mixed micelles appears to be a rapid process

Considerations of Ground Floor Built on Stilts

【中文文摘】通过对当前居住小区和商业建筑两种不同类型的底部架空设计进行分析研究,针对存在的问题提出了一些建议。以期对正确合理的运用底部架空设计手法有所启迪。 【英文文摘】This paper mainly analyzes two different styles of ground floor built on stilts, which are used in residential district and commercial buildings. Facing the existent problems, this article offers some suggestions and expects to provide some enlightenment design method to apply the technique of ground floor built on stilts rightly and properly