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关键词： 新型高效凝析油聚结滤器   三维蜂窝纳米破乳材料   纳米界面分水膜  

摘要： 某海洋工程项目选用了一种新型凝析油聚结分离器装置,利用高效三维蜂窝纳米结构破乳聚结膜、纳米界面分水膜等高科技材料,使其大幅提高聚结分离器的处理效果及稳定性,并尝试实现降低油田投资及能耗。本文详细介绍了新型高效凝析油聚结滤器的原理、结构及流程设计,以期为后续项目提供经验。

关键词： 分离工程   宽沸程混合物   迭代变量  

摘要： 绝热闪蒸计算是《分离工程》教学中的难点内容之一。本文使用Matlab软件编写程序并计算,从理论和计算两个方面对宽沸程混合物的闪蒸计算中内外层循环迭代变量的选择问题进行探讨。不仅可以强化学生对绝热闪蒸基础知识的认识,也可以加强学生对绝热闪蒸计算过程本质的理解。

关键词： 协同创新   生物分离工程   课程创新   实践教学  

摘要： 该文以南京工业大学"2011学院"生物工程专业生物分离工程课程为例,依托生物化工学科优势以及国家级协同创新平台,通过创新课程设置,增加实践类课程;创新教学方式,采用双语教学,"启发式""交互式""讨论式"教学模式,将"可视化"思维导图作为重要工具;创新课程考核,采用工艺流程图为考核方式,创新实践教学模式,将课堂"搬"进企业,培养学生双创精神;创新师生关系,科研反哺教学,提高学生科研能力等,探索专业能力与创新创业能力融合培养的教学模式,着力培养出基础理论知识扎实,具有较强工程实践、创新创业能力,能够从事生物工程相关专业科研、开发、设计和管理等工作的人才。

关键词： 藻水分离   筛网   南水北调中线工程  

摘要： 南水北调中线工程干渠藻类滋生,从干渠内拦截或者从边坡抽吸的藻水混合物数量很大,受场地制约和环保要求必须对藻水混合物进行藻水分离。利用振动筛的工作原理,由激振系统产生的激振力带动筛箱振动,通过高密度筛网实现藻水分离,分离后的水可直接流回干渠或灌溉干渠两侧绿化带,分离后的藻浆进行收集外运。针对藻类浓度的变化,可以改变藻水分离振动装置激振系统的频率和振幅,实现可调频、可调幅的振动分离功能。该装置可以与干渠节制闸自动化拦藻设备或渠道边坡除藻车配合使用,实现拦藻、除藻和藻水分离同步进行。试验结果表明,该装置性能稳定、运行安全可靠,藻水分离效果良好,机械自动化水平高,可以为南水北调中线工程环境维护节约大量人力、物力和财力。

关键词： 化工分离工程   互联网+   在线教学   案例库  

摘要： 本文分析了“互联网+”的发展对高校化工专业传统教学模式的影响。结合化工分离工程的课程的特点,阐述了在线课程建设的思路。主要围绕在线平台教学内容、教学方法和案例库建设等方面介绍了课程设计和实践,有效地提高学生对专业知识的掌握和实际应用的能力。

关键词： ZnZrF6-Ba6Zn7F26   Glass ceramic   Phase-separation engineering  

摘要： Perfluorinate glass ceramics with ultra-low phonon energy are very important optical and photonic materials. Unfortunately, there is no suitable method to obtain transparent perfluorinate glass ceramics due to poor thermal stability of fluoride glass. As a result, wide applications of glass ceramics in advanced infrared systems are restricted. Here, an effective method based on phase-separation engineering is used to develop transparent perfluorinate glass ceramics. In this article, a novel transparent Er2+-doped ZnZrF6-Ba6Zn7F26 perfluorinate glass ceramic was designed and fabricated by phase-separation engineering. The sample exhibits low phonon energy (564 cm(-1)), ultra-wide transmission range (0.33-8.2 mu m, T >= 50 %), and strong infrared emission, which is better than that of ZBLAN glass, oxide-, and oxyfluoride-glass ceramics. These good properties of the perfluorinate glass ceramic demonstrate that phase-separation engineering not only offers an effective approach to obtain perfluorinate glass ceramics but also provides wide-ranging opportunities for advanced infrared optical and photonic materials.

ISBN: (纸本)9787122354020

关键词： GUV   phase separation   polymer blends   polymersome   synthetic cells  

摘要： Cell membranes exhibit elaborate lipidic patterning to carry out a myriad of functions such as signaling and trafficking. Domain formation in giant unilamellar vesicles (GUVs) is thus of interest for understanding fundamental biological processes and to provide new prospects for biocompatible soft materials. Lipid rearrangements in lipidic GUVs and lipid/polymer GUVs are extensively studied whereas polymer/polymer hybrid GUVs remain evasive. Here, the focus is on the thermodynamically driven phase separation of amphiphilic polymers in GUVs. It is demonstrated that polymer phase separation is entropically dictated by hydrophobic block incompatibilities and that films topology can help to determine the outcome of polymeric phase separation in GUVs. Lastly, Janus-GUVs are obtained and GUVs exhibit a single large domain by using a compatibilizing hydrophobic block copolymer.

关键词： Radiology   Strontium   Cobalt   Perovskites   X-ray photoelectron spectroscopy  

摘要： La1-xSrxCoO3-delta perovskites are potential catalysts for the anodic reaction of alkaline water electrolyzers, i.e., the oxygen evolution reaction (OER). It is wellknown that La1-xSrxCoO3-delta perovskites can easily display strontium surface segregation, but how this influences the performance of La1-xSrxCoO3-delta. perovskites as anodic electrode in alkaline water electrolyzers, particularly in terms of OER activity, has not been unveiled yet. This study focuses on La0.2Sr0.8CoO3-delta, which shows relatively high activity for the OER, and reveals the influence of the preparation temperature on the amount and morphology of segregated strontium-containing islands. Thin film samples were prepared at different temperatures by using pulsed laser deposition. Those samples were then characterized with synchrotron-based X-ray photoelectron spectroscopy "as prepared" and after being immersed in ultrapure water. We found that higher preparation temperatures enhance the segregation of strontium, which is then almost quantitatively removed by washing the samples with ultrapure water. After immersion in water, the samples expose a cobalt-rich surface. Investigating the OER activity as a function of the perovskite deposition temperature, it has been found that the higher the deposition temperature (i.e., the more extended the strontium segregation), the higher the OER activity. Such an effect has been linked to the higher amount of cobalt accessible after removing the strontium segregated islands.