Study on China’s “County Financial Institution Administrated by Province”——Case of Zhejiang Province

近年来“省管县”财政体制在浙江等地取得的突出成绩，给其他省份带来了启示。本文基于这个背景，试图从理论和实践角度来研究“省管县”财政体制。首先回顾了我国省以下财政体制的历史沿革，以浙江省为例分析现行“省管县”财政体制的现状，并借鉴其他省份的实践进行比较研究；其次肯定了“省管县”财政体制的优越性，发现其存在的问题，并解释存在问题的原因；最后对“省管县”财政体制的推进思路进行了思考。In recent years, “County Financial Institution Administrated by Province” in the financial system has achieved outstanding results in Zhejiang and other areas, which bring enlightenments to other provinces. Based on this background, the paper tries to study financial management system from the perspective of the theory and the practice. Firstly, give retrospection to the provincial financial syste...学位：经济学硕士院系专业：经济学院财政系_财政学(含税收学)学号：1552009115159

变革与转型中证券公司风险管理技术体系的构建

本文提出证券公司需要构建以净资本的动态管理为核心,以VaR等为技术手段,适合我国证券公司现状的风险管理技术体系。并运用VaR等技术手段,对市场风险、操作风险的度量方法进行了探讨

民族学视角下的少数民族教育问题研究

民族学就是以民族为研究对象的学科。它把民族这一族体作为整体进行全面的考察,研究民族的起源、发展以及消亡的过程,研究各族体的生产力和生产关系、经济基础和上层建筑。在民族学视角下,敏感的发现少数民族教育的问题,并且提出具有针对性的发展策略能够促进民族的团结与融合。通过对民族学视角下的少数民族教育问题进行探究,旨在提高少数民族教育的质量,进一步促进少数民族的发展与建设。宁夏大学新华学院院级科学研究基金资助项目“关于民族学视角下的少数民族教育问题的若干探究”(项目编号:14XHXY12)的研究成

嗜人类T淋巴细胞病毒Ⅰ型核心蛋白P24基因的克隆与表达

目的 从感染HTLV-1的中国患者外周血单核细胞（PBMCs）中扩增编码HTLV-1核心蛋白P24的cDNA,并在大肠杆菌中进行表达。方法 提取感染者PBMCs基因组DNA,应用巢式PCR方法扩增出HTLV-1核心蛋白P24的cDNA并测序,与pGEX-20T载体构建重组质粒,在大肠杆菌BL21中表达,采用ELISA和Westernblot分析重组蛋白活性。结果HTLV-1核心蛋白P24基因序列高度保守,构建重组载体后,在大肠杆菌中表达的重组蛋白,经检测具有较强的抗原活性。结论 成功地表达了HTLV-1型病毒的核心蛋白P24基因,为国产诊断试剂和疫苗的研发打下了基础

Preparations and Electrochemical Properties of BC/CoNi2S4@PPy Flexible Composites for Supercapacitors

本文采用溶剂热、原位聚合和真空抽滤相结合的方法制备了用于超级电容器的细菌纤维素/镍钴硫化物/聚吡咯(BC/CoNi2S4@PPy)柔性电极材料,通过X射线衍射、场发射扫描电镜、红外光谱、氮气吸脱附、拉伸强度和接触角表征了材料的形貌结构、组成、机械性能和亲水性,并采用循环伏安法和恒电流充放电测试了复合材料的电化学性能。结果表明,表面含氧官能团丰富的BC纤维网络结构对氧化还原活性物质CoNi2S4的生长和导电聚合物PPy的分布具有引导作用,CoNi2S4均匀分布在BC网络中,且PPy均匀包覆在BC纤维和CoNi2S4纳米球表面构成具有丰富孔隙结构的三维导电网络,使得该复合材料具有较好的机械性(抗拉强度达28.0±0.1 MPa)、亲水性(对6 mol·L-1 KOH的瞬间接触角为43.6°)及良好的导电性。该电极材料在1 A·g-1下比电容高达2670 F·g-1,充放电循环10000次后比电容的保持率为82.73%,且经1000次反复弯曲后电化学性能保持不变。此外,将其与活性炭组成的非对称超级电容器,在1 A·g-1下比电容为1428 F·g-1,最高能量密度和功率密度分别达49.8 Wh·kg-1和741.8 W·kg-1。Flexible supercapacitor is one of the most promising energy storage devices for portable and wearable electronic products due to its advantages of high power density, fast charging and long cycle life. Therefore, self-supporting flexible electrode materials with high performance have attained more and more attention both in academia and in industry recently. In this work, using bacterial cellulose (BC) as a flexible substrate, the bacterial cellulose/nickel-cobalt sulfide@polypyrrole (BC/CoNi2S4@PPy) flexible composites with three-dimensional porous network and good conductivity were prepared by a combined solvothermal-in-situ polymerization-vacuum filtration method. The samples were characterized by X-ray diffraction, field emission scanning electron microscopy, Fourier transform infrared spectrometry, N2 physisorption, tensile strength and contact angle measurements. Their electrochemical performances were tested by cyclic voltammetry, galvanostatic charge/discharge testing and electrochemical impedance spectroscopy. The results show that the three-dimensional porous network of BC fibers with rich oxygen-containing surface groups play a guiding role in the growth of the redox active material CoNi2S4 and the distribution of conductive polymer PPy, resulting in uniformly distributed CoNi2S4 nanospheres in the network of BC fibers, both coated evenly with a layer of conductive PPy. The resulting BC/CoNi2S4@PPy composites, a three-dimensional conductive network with high porosity, displayed good mechanical property (tensile strength up to 28.0±0.1 MPa), hydrophilicity (the instantaneous contact angle in 6 mol·L-1 KOH is 43.6°), as well as excellent electrochemical performance. The specific capacitance of the flexible BC/CoNi2S4@PPy was 2670 F·g-1 at 1 A·g-1 in a three-electrode system, and retained 82.7% after 10000 charge and discharge cycles. In addition, the electrochemical performance remained unchanged after 1000 times of repeated bending. In an asymmetric supercapacitor composed of BC/CoNi2S4@PPy and activated carbon, the area specific capacitance was 1428 F·g-1 at 1 A·g-1. The asymmetric supercapacitor achieved the maximum energy density of 49.8 Wh·kg-1 and power density of 741.8 W·kg-1.国家重点基础研究发展计划项目(2014CB239702);国家自然科学基金项目(21676082)通讯作者:周静红E-mail:[email protected]:Jing-HongZhouE-mail:[email protected]华东理工大学化工学院,上海 200237School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, Chin

紧缩型SOI多模干涉光开关的设计

提出了一种新的紧缩型SOI多模干涉（MMI）光开关。开关由单模输入输出波导和MMI耦合器组成。通过在多模波导区域引入调制区，利用Si的等离子色散效应（PDE）改变调制区的折射率来实现开关动作。用FD-BPM方法对开关的工作原理和性能进行了模拟与分析。结果表明，光开尖良好的综合性能，而整个开关的长度只有7mm

集成光开关阵列的研究进展

文中简要介绍了集成光开关阵列的研究进展，重点分析了不同材料和不同结构的开关阵列的特

蒸汽爆破技术在麻黄碱提取中的应用

目的：优选麻黄汽爆预处理后麻黄碱的提取工艺.方法：采用汽爆技术对麻黄草进行预处理，通过提取试验确定汽爆参数，然后采用正交实验法，确定汽爆麻黄中麻黄碱的提取工艺。通过电镜观察汽爆前后麻黄草组织结构变化情况，对汽爆原理及提取过程进行初步分析，结果：麻黄汽爆预处理后，麻黄碱最佳提取工艺为：100℃，90min，浸提3次，结论：该提取工艺可提高麻黄碱的提取收率

N×N集成光开关阵列模型

报道了由2N个1×N多模干涉马赫-曾德尔光开关组成的N×N光开关阵列结构，分析了这种结构的开关阵列优势和局限性。用场传输矩阵方法建立了1×N多模干涉光开关的光场传输方程。给出了光开关阵列从任一输入端输入、从任一输出端正输出时阵列开关的工作条件。在上述原理及理论基础上分析了4×4光开关阵列的结构和工作条件