纤维过滤器在盐水精制中的应用

介绍了纤维过滤器的构造，过滤机理及用于盐水精制的试验情况，经过对出现的问题进行改进和完善，应用结果表明纤维过滤器完全可以代替PE过滤器。     

无胶囊式纤维过滤器

论述二种过滤器的优缺点 ,说明改装后的无胶囊式过滤器的特点。     

高效纤维过滤器的优化

介绍了LLY-高效纤维过滤器的工作原理,分析了该设备存在的问题。针对过滤水质变差、过滤效率降低等问题,对设备进行了一些工艺上的改造,更改了设备内部的主要备件的材质,优化了滤料数量,改进了多孔板布孔方式和布气装置布孔方式,取得了良好的经济效益和社会效益。     

高效纤维过滤器在循环水中的应用

通过高效纤维过滤器在循环水中的应用,解决了在长期泄漏条件下循环水恶化的问题。高效纤维过滤器在循环水水质处理中发挥了显著的作用,提高了水处理效率和自动化程度,降低了运行费用。     

高效快速纤维球过滤器的应用

介绍了纤维球过滤器的特点、工作原理及其在脱盐水装置中的应用效果。     

YG Ⅳ型浮动纤维高效过滤器的应用

ＹＧⅣ浮动纤维高效过滤器是一种新型的无囊纤维过滤器,内部结构简单,滤料采用丙纶膨化变形长丝。该设备集“逆粒度”深层过滤和横流过滤的特性为一体。该过滤器入口水浊度≤２０ｍｇ／Ｌ时,出口水浊度≤１ｍｇ／Ｌ;正常运行流速３０－６０ｍｇ／ｈ;在入口浊度５０ｍｇ／Ｌ左右,流速３０ｍｇ／Ｌ时,运行周期为２４ｈ以上。     

纤维球过滤器反洗频率过高原因分析

大庆石化分公司化肥厂水汽车间的脱盐水处理系统中的纤维球过滤器,反洗频率高达2～3 d 1次。根据对反洗液的过滤水、滤饼的成分分析得出,堵塞纤维球过滤器的渣滓的主要组分为氧化铁和碳,与高温变换催化剂的组分基本一致,结合经结构分析滤饼与该催化剂的XRD结构分析谱图完全重合,判断为合成车间高温变换催化剂粉碎流失所致。通过更换高温变换催化剂后,系统恢复了正常。     

佛山恒益发电有限公司GXF-型纤维过滤器改造设计

该公司纤维过滤器未能考虑滤料的污染,导致其纤维密度在运行时均匀,反洗效果不明显,对处理设备造成一定影响,需进行改造成GXF-型纤维过滤器。     

三种纤维过滤器在火电厂水处理中的应用

对下进水囊式纤维过滤器、下孔板浮动型纤维过滤器、上孔板浮动型纤维过滤器的优缺点和运行效果进行对比分析,指出3种过滤器适合应用的水质;并且探讨了提高纤维过滤器反洗效果的方法.     

纤维过滤技术的研究进展

比较系统地综述了纤维过滤技术的发展历程,纤维滤料在水处理系统应用以来,从纤维乱堆形式发展到现在的规格化纤维过滤材料,经历了一系列的过程,同样纤维过滤技术也随着纤维滤料的发展不断的有新的过滤器出现.在分析了滤料发展的基础上,综述了纤维过滤器技术的发展,并重点介绍了纤维过滤技术发展以来出现的各种纤维过滤器的结构,以及其运行特点.     

Applications of in situ magnetic resonance techniques in chemical reaction engineering

NMR spectroscopy is now a well‐established technique for the in situ study of surface chemistry and the chemical processes occurring during catalytic reactions. Developments in probe design are making the sample environments ever closer to the operating conditions of the catalyst in industrial use. In parallel with these advances there is an increasing interest in the application of field gradient magnetic resonance techniques, namely pulsed gradient spin echo (PGSE) NMR and magnetic resonance imaging (MRI), to in situ studies of mass transport processes in catalysts and reactors. An overview of the recent developments in in situ NMR spectroscopy, PGSE NMR and MRI studies in application to catalysis and reaction engineering is presented and the potential of these techniques in the numerical modelling of catalytic processes and reactor design is highlighted. This revised version was published online in August 2006 with corrections to the Cover Date.     

曝气生物滤池的研究进展

介绍了曝气生物滤池的工作原理、特点和形式,对其在污水处理中的有机物、SS、氮、磷的去除等功能的最新研究进展进行了综述,并对曝气生物滤池的填料、启动方式、气水比、温度、反冲洗和负荷等影响因素作了详细介绍。就曝气生物滤池的运行和发展提出了作者的观点。     

磁致形状记忆聚合物的研究进展

综述了磁致形状记忆聚合物的研究进展,包括磁致形状记忆聚乳酸、聚己内酯和聚氨酯等,并介绍了磁致形状记忆聚合物在生物医学工程上的应用,包括在药物缓释中的应用、在矫形外科和骨折固定中的应用和在人体中风治疗方面的应用等,同时展望了磁致形状记忆聚合物的发展前景。     

聚苯胺在防腐涂层中应用研究进展

聚苯胺被认为是最有应用前景的导电聚合物,目前被广泛应用在涂料、传感器、电极及电磁屏蔽等领域,而其在防腐涂层中的应用是目前研究的热点。综述了聚苯胺纳米结构的制备及其在防腐涂层中的应用,并归类总结了目前对聚苯胺防腐机理的推测与研究进展。     

The Neurocognitive Profile of the Cerebellum in Multiple Sclerosis

In recent years, a high number of studies have demonstrated that neuropsychological functions are altered in multiple sclerosis (MS) patients with cerebellar lesions, mainly including attention, working memory and verbal fluency. Since the present literature is often elusive on this topic, we aim to provide a comprehensive report about the real impact of cerebellar damages (evaluated as volume, lesions or connectivity measures) on cognitive functions. In particular in this review, we report and discuss recent works from 2009 to 2015, which have demonstrated the key role of the cerebellum in cognitive impairment of MS patients.     

植物纤维性农业废弃物处理重金属废水的研究进展

综述了国内外用植物纤维性农业废弃物处理重金属废水的研究进展,阐述了其吸附重金属离子的机理,分析了影响重金属离子吸附过程的多个因素,并提出了相关研究存在的一些问题。     

Highly Resolved Determination of Structure and Particle Deposition in Fibrous Filters by MRI

A new method for the quantitative three‐dimensional structure determination of a coarse filter medium as well as the particle deposition inside this medium is described. The filter structure was imaged at a voxel resolution of 59 μm which is close to the mean fiber diameter, therefore allowing individual fibers and their position to be determined. The data processing method for determining the filter structure as well as the quantification of the mass deposited in the filter are explained in detail. For particle deposition investigations the spatial resolution used was 235 μm. Hereby, a linear correlation between deposited mass and signal intensity was observed.     

Studies of Physical State of Water in Maize from Northeast China (cv. Huangmo 417) During Drying at Subzero Temperatures

In northeastern provinces of China, maize is one of the main sources of income in agriculture. After harvest, the grain is kept under subzero conditions for 3-4 months. Studies have been undertaken to assess the feasibility of drying at subzero temperatures during storage. Using a combination of NMR and MRI enabled a better understanding of physical states of water in the cv. Huangmo 417 during drying at subzero temperatures. The studies showed two water components with different relaxation times (long and short T₁) that were found when temperature was lowered from +25 to -30°C. T₁ was a minimum when the temperature was reduced to -20°C. T₂ was found to be much shorter than T₁. This was an indication that water mobility was decreasing at the same time as the temperature. The results from MRI revealed the location of frozen water in different areas of the maize kernel during subzero drying. This approach to characterizing the states of water in maize under subzero conditions will assist in devising drying strategies for northeastern China.     

2-甲基丙烯酰氧基乙基磷酰胆碱共聚物应用研究进展

综述了2-甲基丙烯酰氧基乙基磷酰胆碱(MPC)共聚物在改善血液相容性、提高药物控释效率、增加基因转染率、改善角膜接触镜表面亲水性、延长人工关节使用寿命和减小生物传感器表面污染等领域的应用研究进展,并对其发展前景进行了展望。