Photocatalytic degradation of indigo carmine dye using TiO<Subscript>2</Subscript> impregnated activated carbon

The photocatalytic degradation of indigo carmine dye was studied using hydrothermally prepared TiO₂ impregnated activated carbon (TiO₂: AC). A comparison between the degradation of the indigo carmine dye using commercial TiO₂ and TiO₂: AC revealed the efficiency of the title compound. The degradation reaction was optimized with respect to the dye concentration and catalyst amount. The reduction in the chemical oxygen demand (COD) revealed the mineralization of dye along with colour removal. The active compound like TiO₂ was impregnated onto the activated carbon surface under mild hydrothermal conditions (<250°C, P ∼ 40 bars). The impregnated activated carbon samples were characterized using powder X-ray diffraction (XRD) and scanning electron microscope (SEM).     

医用碳／碳复合材料的制备及骨组织相容性研究

医用碳／碳复合材料的制备工艺主要由碳纤维三维立体织物浸渍糠醇树脂、碳化、化学气相渗透和石墨化等主要步骤构成．本文采用扫描电子显微镜、肖氏硬度计对碳／碳复合材料的表面微观形貌及显微硬度进行观察和测定．为进一步探讨该材料作为骨组织替换材料的可行性，开展了实验动物骨内种植实验，并通过X射线和组织病理切片观察对材料与骨组织相容性进行了研究．结果表明，采用本工艺制备的碳／碳复合材料组织结构均匀致密．该材料生物相容性良好，具有与正常人体皮质骨十分接近的表面硬度．     

化学沉淀法制备纳米CeO2的工艺研究

以氟碳铈矿为铈源,氨水为沉淀剂,H2O2为氧化剂,加入少量表面活性剂作为分散剂,采用化学沉淀法合成纳米CeO2。研究了氟碳铈精矿溶解反应温度、反应时间、表面活性剂种类和用量、煅烧温度和煅烧时间等因素对纳米CeO2晶粒尺寸的影响,得到了最佳工艺条件,在此条件下得到的纳米CeO2粉末为立方晶体,结晶趋于完整,粒径较小。     

高堆积密度壳聚糖的制备及其理化性质

通过半湿研磨法制备出堆积密度〉0．50g／mL的壳聚糖，其堆积密度提高60％～90％。此方法操作简单、无污染、成本低廉，同时处理后的壳聚糖不仅没有失去其碱性多糖的特点，而且溶解范围加宽、溶解速度加快、溶液黏度提高若干倍和味道香甜，是一种较理想的医药、食品添加剂。     

导电高分子吸波材料制备方法研究进展

作为一种新型的多功能材料,导电高分子吸波材料成为近年来研究的热点.重点阐述了近年来国内外导电高分子吸波材料的制备方法,包括纳米管、纳米线高分子吸波材料的模板法、电纺丝技术法等以及复合型导电高分子吸波材料的制备方法,并展望了导电高分子吸波材料的发展前景.     

对硝基苯胺制备实验的改进

在分析诸如酸度、温度等影响对硝基苯胺制备的因素的基础上,对实验教材中的酸用量和实验步骤作了适当调整;从效果上看,该调整不但能帮助学生在实验中较好地控制实验条件,同时也能获得满意的实验制备效果.     

Proteomic analysis of the kidney filtration barrier—Problems and perspectives

Diseases of the glomerular filter of the kidney are a leading cause of end-stage renal failure. The kidney filter is localized within the renal glomeruli, small microvascular units that are responsible for ultrafiltration of about 180 liters of primary urine every day. The renal filter consists of three layers, fenestrated endothelial cells, glomerular basement membrane, and the podocytes, terminally differentiated, arborized epithelial cells. This review demonstrates the use of proteomics to generate insights into the regulation of the renal filtration barrier at a molecular level. The advantages and disadvantages of different glomerular purification methods are examined, and the technical limitations that have been significantly improved by in silico or biochemical approaches are presented. We also comment on phosphoproteomic studies that have generated considerable molecular-level understanding of the physiological regulation of the kidney filter. Lastly, we conclude with an analysis of urinary exosomes as a potential filter-derived resource for the noninvasive discovery of glomerular disease mechanisms.     

大型输水工程阀门监造招标文件的编制

本文针对某工程阀门监造招标文件的编制进行了详尽的分析。该招标文件是在水利工程监理招标文件范本的基础上,参考其他行业监造合同范本,并针对其工程特点修改而成。文中阐述了招标文件中商务部分、技术文件、监造大纲、评标标准及方法的编制,以期为其他类似工程项目招标文件编制提供借鉴。     

基于ASP的植物生理图片系统的实现

为了满足我院《植物生理》理论教学和实践教学中图片展示的需要,弥补理论教学的不足,并为远程网络教学提供网络资源;从植物生理图片的管理出发,分析了《植物生理》教学的要求,以教学满足教学要求为目的,采用B/S架构,针对植物切片扫描成的图片进行数字化管理的要求,开发出一套适合切片图片管理的系统.系统实现了切片图片的存储、管理、...     

TiO2纳米管的制备方法及其改性

本文对TiO2纳米管制备技术、特点等进行了综述，且探讨了TiO2纳米管的改性方法及存在问题，并对今后的发展方向予以展望。