Evolution axiale du coefficient de transfert de matière en colonne à bulles et en lit fluidisé triphasique

Liquid phase volumetric mass transfer coefficients for oxygen are determined in a three-phase fluidized bed and in a bubble column. The concept of exponential decreasing axial variation of volumetric mass transfer coefficient leads to a better representation of oxygen concentration profiles inside the column. Compared to the bubble column, k_la axial variations are more important in the lower part of the fluidized bed column, where solid particles increase the coalescence phenomenum, particularly with viscous liquids.     

可再生吸收剂的烟气脱硫技术

文章对可再生吸收剂的脱硫技术及其原理进行了比较全面的阐述,并且摘要介绍了各个工艺技术的优缺点。对于需要选择不同工艺路线的决策者,可以提供参考。     

强脉冲离子束辐照对Ni_3Al合金表面的改性

采用X射线衍射、扫描电镜和电化学腐蚀等技术研究了 3种不同束流密度的强脉冲离子束辐照对Ni3 Al合金表面形貌与物相及电化学腐蚀性能的影响。结果表明 :IPIB辐照时 ,试样最外表面的温度远超过Ni3 Al合金的熔点 ,造成试样表面融化 ,从而清洁和抛光试样表面 ;随离子束流密度的增加 ,Ni3 Al合金表面的物相呈现规律性的变化 ,分别产生形变织构、部分非晶及新相 ,使Ni3 Al合金的抗电化学腐蚀性能得以提高     

重读萨沃伊

中国对于现代建筑的引进是片断式的,试以作为现代建筑里程碑的萨沃伊为突破口,从对古典的继承,对环境创新及空间的突破等方面重读萨沃伊,其目的是希望能给读者在对现代建筑的理解方面以启迪。     

TYIN tegnestue Architects. Integrating On-Site Education and Practice

Founded by Andreas Grøntvedt Gjertsen and Yashar Hanstad, TYIN tegnestue Architects grew out of an initiative to provide sleeping accommodation for an orphanage in Thailand when the principals were only third-year architecture students. Norwegian architect Lisbet Harboe explains how the student-architects built up a practice while in schools by refocusing their studies and those of their peers on learning through their own experiences of construction.     

塔河油田奥陶系地层成像测井模式探讨

通过对19口井的成像测井图像对比研究,根据井下地质特征在成像图上的显示,建立了适用于塔河油田的对应于各种地质特征的成像模式.成像模式的应用将增强成像测井评价碳酸盐岩储层的精确性.裂缝识别率可达80%.     

Xi'an Horticultural Masterplan,Xi'an,China

In this masterplan for a horticultural expo, a single architectural structure was used by Serie Architects to address the issue of centrality on a site at the city's edge. The city wall is revived as a typological device to both mark the centre of the park and connect it the main entrance of the park.