Developing Flow Battery for Large Scale Energy Storage

介绍一种新近发展迅速的大规模蓄电技术——液流蓄电池。叙述了其原理和优势、国内外发展现况和关键技术;分析了其作为风能与太阳能发电的蓄能、电网调峰、用电大户自备电源的应用前景;提出了发展我国液流电池的意见、建议。This article introduces a fast-developing large scale energy storage technology-flow battery, narrates its principles, advantages, development status and key technologies of both domestic and abroad. This article also analyzes the application prospects of the flow battery when it is used as the energy storage device for wind and solar power plant, in power management, and as the standby power source of the big electricity-consumer. The proposals of developing flow battery are also presented

Development and Application of a Novel Neutralization Test for Echovirus 25

目的:建立一种新型的快速、高通量的埃可病毒25型(ECHO25)中和抗体检测方法,并初步评价其在ECHO25中和抗体筛选和血清流行病学调查中的应用价值。方法:应用免疫荧光方法筛选ECHO25高亲和性抗体并将其作为检测单抗,结合酶联免疫斑点检测技术(ELISPOT)建立ECHO25中和抗体检测方法;使用不同效价的血清评价该方法的准确性;采用所建立的中和方法对ECHO25单克隆抗体、临床血清样品进行检测。结果:建立了快速检测ECHO25中和抗体的Nt-ELISPOT方法,以ECHO25单克隆抗体5B9作为检测抗体;相比经典的中和实验方法 Nt-CPE,该方法可显著缩短检测时间(从5~7 d缩短至1 d以内),检测结果具有较好的一致性;采用所建立的Nt-ELISPOT方法首次筛选获得3株对ECHO25具有较好中和能力的单克隆抗体;临床血清样品检测结果显示厦门地区可能存在ECHO25的流行。结论:该方法可以应用于中和抗体筛选和血清学的临床辅助诊断,为ECHO25的防治研究提供支持。Objective: To establish a rapid and high-throughput neutralization test for echovirus 25(ECHO25),and evaluate its application in neutralizing antibody screening and seroepidemiological surveys. Methods: Immuno-fluorescence assay was applied to screen a high affinity antibody, which was used as the detection antibody forECHO25, and a rapid neutralization test was established based on enzyme- linked immunospot assay(Nt-ELISPOT). The accuracy of this method was evaluated by detecting serum samples with different titer. Monoclonalantibodies against ECHO25 and clinical serum samples were detected via the established neutralization test. Results: A rapid method to detect neutralizing antibody against ECHO25 was established and an anti-ECHO25 anti-body, 5B9, was used as the detection antibody. The detection period could be shortened significantly comparedwith the classical neutralization test(Nt- CPE)(from five to seven days to less than one day), and the Nt-ELISPOT had good consistency with the Nt- CPE. Meanwhile, three neutralizing antibodies for ECHO25 werescreened firstly by this method. The detection results of clinical serum samples showed that infection of ECHO25 might be popular in Xiamen. Conclusion: This method can be used in neutralizing antibody screening and seroepi-demiological surveys, and it may provide support for the control of ECHO25.国家自然科学基金(81371817,81401669

Determination of Trace Metal Elements in Crude Oils by Microwave Digestion-Inductively Coupled Plasma-Mass Spectrometry Assisted with Organic Solvent

李景喜( 1980 － ) ，男，山东临沂市人，研究实习员，从事分析化学研究。E-mail: jxli@fio．org． cn。[中文摘要]建立了二氯甲烷溶剂辅助微波消解-电感耦合等离子体质谱法测定原油中V、Cr、Fe、Ni、Cu、Zn、Mo、Co、Pb等16种微量金属元素。研究表明,用CH2Cl2分散原油样品,以浓HNO3-H2O2为消解体系,采用CEM微波消解系统消解样品,各元素线性关系良好,相关系数≥0.9995;检出限可达ng/L;方法精密度较高,相对标准偏差(RSD,n=3)<5.0%;回收率为92%～110%。以w(Ni)/w(V)与w(Fe)/w(V)比值为变量参数对不同原油样品进行聚类分析,表明国内与国外不同地区原油样品中各金属元素含量差异较大。[英文文摘]A method for determination of V,Cr,Fe,Ni,Cu,Zn,Mo Co,Pb,etc in different crude oils was established by inductively coupled plasma-mass spectrometry assisted with organic solvent microwave digestion.The oil sample was digested by microwave using HNO3-H2O2 as oxidant after dispersing in organic solvent(CH2Cl2).The results showed that the detection limits of the method reached ng/L level for sixteen elements.The linear correlation of the method was preferable with the correlation coefficient of better than 0.9995． The recoveries of the method were in the range of 92% ～ 110% with the precision of less than 5.0% RSD (n=3)．The ratios of w(Ni)/w(V) and w(Fe)/w(V) were distinct in different crude oil samples from oversea and domestic，and the index can be used to the cluster analysis for differencing the crude oil samples．国家海洋局第一海洋研究所基本科研业务费专项资助(2010G23);海洋公益性行业科研专项资助(200705011);海洋溢油鉴别与损害评估技术重点实验室开放基金资助(200920

圆盖阴石蕨的化学成分研究

目的 :研究圆盖阴石蕨的化学成分。方法 :用甲醇提取 ,硅胶柱色谱分离 ,IR、MS、1H NMR、13 C NMR等方法确定圆盖阴石蕨化合物结构。结果 :分离得到 6个化合物 ,分别为 4 甲酰基羽扇豆酮、木栓酮、3,15 木栓二醇、十八碳酸、三油酸甘油酯和豆甾醇。结论 :这些化合物均为首次从该植物中分离获得

地涌金莲的化学成分

目的　研究地涌金莲 Musella lasiocarpa全草中的化学成分。方法　用甲醇室温浸提 ,溶剂萃取分段 ,硅胶柱层析分离纯化 ,波谱分析鉴定结构 ,体外抑菌实验测试抗菌活性。结果　从该植物全草中分离出 4个phenylphenalenone型化合物 ,通过波谱分析将其分别鉴定为 :2 - hydroxy- 9- (4′- hydroxyphenyl) - phenalen- 1- one( )、 2 - methoxy- 9- (4′- hydroxyphenyl) - phenalen- 1

黄土高原半干旱地区西吉县农村能源综合建设试点

&ldquo;黄土高原半干旱地区西吉县农村能源综合建设试点&rdquo;是&ldquo;七&middot;五&rdquo;国家重点科技攻关项目。该项研究认真执行&ldquo;因地制宜，多能互补，综合利用，讲究效益&rdquo;和开源节流并重的农村能源建设方针，选择西吉县为单元，以试区的科学试验为基础从全局出发，探讨了黄土高原类型地区解决农村能源严重短缺问题的模式和途径。该项研究突出以生物质能为主，走林、农、草、牧能综合发展的道路，提出了黄土高原水土保持型薪炭林（草）模式和永续多年生混播草地模式等，是建立农村能源农业生态良性循环的最佳模式，反映了地区的特色，有所创新，对黄土高原地区和我国其它类型的农村能源建设具有重要的指导意义

Industrial Convergence of Marine Ranching and Offshore Wind Power:Concept and Prospect

China is a major maritime country. The booming marine ranching and offshore wind power industries are becoming important components of Chinese marine economy. The industrial convergence of marine ranching and offshore wind power is a representative innovation of modern high-efficiency agriculture industry and new energy industry, which plays a great significant role in accelerating the shift in driving forces for economic development. Nonetheless, such a program has not yet been established in China now. In this paper, current advances of marine ranching and offshore wind power industries are discussed. Then the necessity, concept,prospects, scientific problems, technological difficulties, and research contents of industrial convergence are presented in detail. The focus of such study is to provide new insights on how to build the new model of modern marine ranching with the purpose of realizing sustainable fishery output and clean energy production