对给排水工程投资经济分析的几点看法

为了使市政给排水工程投资分析更切合实际,分别就成本分析表、损益表、现金流量表及敏感性分析中易出现的问题提出了自己的看法,并对表中部分内容作了调整。     

深圳地铁一期工程地下防腐措施及提高耐久性对策

介绍了深圳地铁一期工程沿线地下水情况,分析了水质中化学介质对主体结构的腐蚀性机理,并对深圳地铁一期工程所采取的防腐措施作了详细阐述,最后结合工程实际,较为全面地提出了地铁工程提高耐久性的对策     

水泥混凝土路面塑性收缩定量研究

主要研究了水灰比对路面混凝土塑性收缩的影响,定量测试了裂缝最大宽度、水分蒸发速度、开裂总面积等参数,并推荐了相关的评价方法,结果表明：水泥混凝土路面水灰比小于0.42时,其表层水分蒸发速度小于0.423 kg/m^2·h,混凝土开裂面积显著增加。     

葛根袋泡茶的水浸出率及薄层层析法研究

介绍了葛根解酒袋泡茶的水浸出率及薄层层析实验研究。     

管井降水技术在多种含水介质基坑工程中的应用

结合蚌埠城市中心广场会展中心工程，介绍了管井降水技术在多种含水介质的复杂地质环境下的应用。     

一款保湿面贴膜的即时功效初步研究

采用配有水分测试探头CM825、色素测试探头MX18的皮肤弹性测试仪Cutometer MPA580,测定在使用一款保湿面贴膜前后及用后5 h内面部皮肤角质层含水量、黑色素含量及弹性的变化,评估面贴膜使用后改善皮肤水分、肤色及弹性的即时功效。结果表明使用该面贴膜有非常明显的即时功效,主要表现在皮肤水分含量较使用前有非常显著的增加（P〈0.05）,测得皮肤黑色素含量也明显降低（P〈0.05）,但弹性无明显增加。     

Surface hierarchical porosity in poly (ɛ-caprolactone) membranes with potential applications in tissue engineering prepared by foaming in supercritical carbon dioxide

This article describes the preparation of porous poly (ɛ-caprolactone), PCL, membranes by supercritical CO₂ (SCCO₂) foaming, displaying surface hierarchical macroporosity which could be tailored by careful control of the pressure, in the range of 150–250 bar, and depressurization processes in several steps, showing also pore interconnectivity between both membrane faces. The membranes exhibited two distinct types of surface macroporosity, the larger with diameter sizes of 300–500 μm were surrounded by and also composed of smaller pores of 15–50 μm (same size as inner pores). Membranes were prepared by solvent casting and submitted to different SCCO₂ foaming. Parameters such as membrane thickness, CO₂ flow, foaming time, pressure, temperature and the depressurization processes (rate and profiles), were varied to determine their influence on final porosity and to decipher which parameters were the most critical ones in terms of surface hierarchical pore organization. No remarkable changes in PCL crystallinity were found when membranes were processed under SCCO₂. Finally, biological evaluation of the porous membranes was achieved by seeding human skin fibroblasts on the prepared membranes. The results, in terms of cell adhesion, spreading, proliferation and metabolic activity indicate that these membranes could hold promise for the fabrication of meshes with controlled porosity for tissue engineering applications.     

循环水厂余压势能回收利用

循环水厂以水轮机代替电机带动风扇转动,充分利用富余的压力势能冷却循环水,达到节能的目的.     

树脂塔再生酸碱废水的回收利用

介绍了焦作煤业（集团）开元化工有限责任公司氯碱生产工艺中树脂塔再生酸碱废水的回收利用经验.     

提高循环水浓缩倍数的方法

内蒙古亿利化学工业有限公司循环水补充水水质硬度、碱度高,在自然pH值运行下,循环水浓缩倍数最高只能控制在2倍,为了节省水资源,该公司采用加硫酸调节循环水pH值的方法降低循环水碱度来提高循环水浓缩倍数。