Research on Strategies of development of JY Securities Assets Management

我国证券行业经过二十多年的发展，资产管理业务经历了初期的粗放发展、行业整顿和规范发展，自2012年行业大兴创新之风以来，证券公司资产管理业务借助行业创新政策的支持，无论规模、产品或服务形式都取得飞速发展，同时随着行业准入壁垒和监管政策的进一步放开，行业竞争态势也越来越激烈。本文主要研究在此背景下JY证券资产管理业务发展所面临的机遇和挑战、所具备的优势和劣势以及资产管理各业务模式发展的战略和实施路径。 本文首先介绍了研究的背景和目的、研究的内容和方法，对研究中相关概念和运用到的管理理论进行了综述，接着应用PEST分析法、波特五力模型和企业资源分析理论，详细分析了公司面临的外部和内部环境，为公司...After twenty years of development of China's securities industry, assets management business has undergone early extensive development, rectification and standardization of the industry. Since the fashion of innovation began in 2012, the size, products, or forms of services have made rapid development;meanwhile the assets management industry competition has become increasingly fierce with the furt...学位：工商管理硕士院系专业：管理学院_工商管理硕士(高级管理人员工商管理硕士)学号：X201015618

MODIFICATION OF THE DEAD BODY SEGMENT PARAMETERS FROM LIVING SUBJECTS

活体测定人体环节参数至今仍是运动生物力学研究中的一个困难问题。该文描述了一种简单而易行的方法对人体环节参数进行个体修正 ,得到一套有效的环节重心比 ,以替代目前在运动技术分析中所使用的数据In the studying of biomechanics of sports, it is still a subtle problem to determine human body segment parameters from living subjects. We are trying to provide a simple and convenient method to modify the given segment mass center parameters for specific objects. The induced segment mass center proportions may be applied to take technical analysis for different sports activities

居民消费能否成为现阶段拉动我国经济增长的主动力

对城乡居民平均消费倾向的研究发现,尽管改革开放以来我国城乡居民的平均消费倾向呈现不同走势,但是,以全部收入计算的城乡居民的平均消费倾向都是基本稳定的。由此得出的推论是:在居民收入占GDP的比重保持稳定的情况下,居民消费不能成为现阶段拉动我国经济增长的主动力。国家社会科学基金重大项目“需求结构转换背景下提高消费对经济增长贡献研究”(No.15ZDC011);;教育部专项课题“我国经济发展动力变革问题研究”(No.18JF097

Defect Detection of Solar Cells Based on Electroluminescence Imaging

为了检测太阳能电池存在的缺陷,给太阳能电池施加一定的正向偏压,利用CCd相机在暗室中探测电池的发光。探测分别在3种状态下进行:无滤光探测、过滤800 nM以下波长后探测和过滤800 nM以上波长后探测。研究发现:只有在过滤800 nM以下波长的镜片下探测效果最好,表明电池主要发红外光,其波长范围为850~1 200 nM。控制光探测器的探测时间,发现不同探测时间下电池的发光强度不同,探测时间相同但偏压不同则光强也不同。该方法可以检测出正向偏压下电池存在的各种缺陷类型。在反向电压下,薄膜电池会出现小光点,这表示缺陷区域和密度,研究证明薄膜电池也能发红外光且薄膜中存在区域缺陷。对低功率的电池片进行光探测发现,电池存在严重缺陷。上述结果表明,红外光探测可以直观、快速、方便地检测太阳能电池存在的缺陷。In order to detect the hidden defects of the solar cells,the eletroluminescence image was obtained by applying a certain forward bias voltage to solar cell in the darkroom using the light sensor CCD camera.The experiments were carried out at three states: without optical filter,filtering the wavelength less than 800 nm,and filtering the wavelength greater than 800 nm.It is found that the detection effect is the best only under the lens of filtration of less than 800 nm wavelength.It proves that the cell mainly emits infrared light of 850 ～ 1 200 nm.By controlling the detecting time,it is found that the light intensity is varied with the detection time,and also varied with the forward bias voltage in the same detection time.This method can detect all kinds of hidden defect type of the solar cells.Under the reverse voltage,thin film cell appears small spots which show defect area and density,and the studies prove that thin film cell also can send infrared light and the defects exist in the cell.In detecting low power cell,it is found that there are serious defects in the cell.The results show that infrared detection has rapid and convenient intuitive features for solar cells defect detection.福建省教育厅科研项目(985)资助项

河蚬乙酸乙酯提取物的抗氧化活性及其对人胆管癌细胞的抑制作用

作为传统中药的河蚬具有退热、治疗肝病和解酒等功效.以新鲜河蚬(Corbicula fluminea)肉为原料,经甲醇抽提,乙酸乙酯萃取等方法得到河蚬乙酸乙酯提取物.运用DPPH法检测其清除自由基的能力,通过MTT法和倒置显微镜观察其对人胆管癌细胞QBC939生长的影响,并通过流式细胞术分析其对QBC939细胞周期的影响.结果显示:河蚬乙酸乙酯提取物对DPPH自由基具有一定的清除作用,在较低的浓度下有较高的清除效果,IC50值为0.6 mg/mL,且随其浓度的增加而不断增强;河蚬乙酸乙酯提取物对QBC939细胞有显著的抑制作用,处理48 h,IC50值为250μg/mL,细胞形态发生明显变化;处理后的QBC939细胞出现明显的凋亡峰.研究表明:河蚬乙酸乙酯提取物不但具有抗氧化活性,且对体外培养的QBC939细胞具有明显的增殖抑制作用,能够改变QBC939细胞周期分布,并诱导QBC939细胞发生凋亡.说明河蚬乙酸乙酯提取物可能具有天然药物开发的潜力,同时也为胆管癌的防治提供新的思路和方法

河蚬提取物对人肝癌细胞SMMC-7721的抑制作用

以河蚬(Corbicula fluminea)为材料,经过甲醇抽提,乙酸乙酯萃取等方法得到河蚬提取物(CFE).用MTT法检测其对肝癌细胞株的抑制作用,借助光学倒置显微镜以及流式细胞术考察CFE对细胞的形态及细胞周期的影响.实验结果表明:CFE对肝癌细胞SMMC-7721有增殖抑制作用,处理72 h细胞形态发生了明显变化,其IC50值为70μg/mL.FMC的结果显示,经CFE处理后的肝癌SMMC-7721细胞出现明显的凋亡峰.这说明CFE有效抑制了体外培养的肝癌细胞增殖,并且能够改变癌细胞的形态及细胞周期的分布,诱导癌细胞出现凋亡

Application of Na-Doped Mo Electrodes on Copper Indium Gallium Diselenide(CIGS) Thin-Film Solar Cells

适量钠元素对铜铟镓硒薄膜生长具有促进作用,本文主要研究了掺钠钼电极特性及其对铜铟镓硒薄膜太阳能电池性能的影响。利用磁控溅射方法制备不同厚度的钼钠/钼(MO nA/MO)薄膜作为背电极,并在(MO nA/MO)薄膜电极上蒸镀铜铟镓硒(CIgS)薄膜,并利用单质硒源硒化处理后制备CIgS薄膜电池。SEM和Xrd结果表明采用三层叠层MO/MO/MO nA薄膜做电极的MO nA容易被氧化,电阻率增加,采用四层叠层MO/MO/MO nA/MO薄膜电极方式有效降低电阻率,阻止MO nA被氧化,CIgS晶粒较大且致密。在同一条件下,在不同MO nA/MO厚度电极上制备CIgS薄膜电池,80 nM MO nA厚度上的CIgS薄膜电池效率达6.54%。An appropriate concentration of Na element is able to promote the growth of Copper Indium Gallium Diselenide(CIGS) thin films.This paper is mainly focused on the study of characteristics of Na-doped Mo electrodes and their effect on the performance of CIGS thin-film solar cells.In this work, the thin-film CIGS solar cells were fabricated as follows:(i) different thicknesses of Mo Na/Mo thin films prepared by magnetron sputtering were used as back electrodes;(ii) CIGS thin films were evaporated on the top of Mo Na/Mo electrodes;(iii) the CIGS thin films were post-processed by selenation process using an elemental Se source and later CIGS solar cells were finally made.The results of SEM and XRD reveal that, for the solar cells using three layers of Mo/Mo/Mo Na thin films as an electrode, Mo Na is easily oxidized and the resistivity of electrode increases, while, for the solar cells using four layers of Mo/Mo/Mo Na/Mo thin films as an electrode, the resistivity of electrode can be effectively reduced, Mo Na can be prevented from being oxidized and the CIGS grains are large and dense.Under the same experimental conditions, for the CIGS solar cells with different thicknesses of Mo Na/Mo thin films as electrodes, the CIGS solar cell using Mo Na with a thickness of 80 nm as an electrode has the highest conversion efficiency of 6.54%国家985资助项目(No.1270K51001

胆管癌患者与健康志愿者血清样品蛋白质表达差异分析

胆管癌(cholangiocarcinoma,CCA)是一种难于早期诊断和治疗的恶性肿瘤.利用蛋白质组学技术以期筛选出人血清中具有医学价值的胆管癌癌变的标志物.利用白蛋白/IgG去除试剂盒去除血清中高丰度的白蛋白和IgG,再经丙酮沉淀得到高质量的血清样品.样品经双向电泳(2-DE)得到了分辨率较好的胆管癌血清的蛋白点图谱.利用ImageMaster2D软件对比分析了胆管癌病人和正常健康对照组的2-DE图谱.其中,表达上调蛋白有8个,表达下调蛋白有6个.用质谱获得上述差异蛋白的肽质量指纹图谱,并经数据库检索共鉴定出了11种差异蛋白质,其中8种蛋白质的表达与胆管癌密切相关.本研究为阐明胆管癌的机理提供了一条新途径

胆管癌血清双向凝胶电泳技术的优化

本研究为筛选胆管癌癌变的标志物,开发相应的药物研究,通过对胆管癌血清双向电泳的样品处理、pH范围、上样量的选择、电泳参数的设置和SDS凝胶电泳染色方法等进行比较优化.确定了样品预处理后通过Millpore公司推出的Montage Albumin Deplete kit去除血清中高丰度的白蛋白,再经丙酮沉淀,用裂解液溶解后,采用pH3.5~10与pH5~8的两性载体电解质以体积比1∶4混合使用,100μg的上样量,12.5%的SDS-PAGE胶,16 mA/胶进行双向电泳的电泳体系.优化了胆管癌血清双向凝胶电泳的条件,得到了分辨率较好的胆管癌血清的蛋白图谱,为进一步的研究奠定了基础

Study on removal boron from solargrade silicon with hydrometallurgy

湿法提纯作为冶金法制备太阳能级硅的前处理工序,可以去除大部分金属和硼杂质。研究了以氢氟酸-硫酸混合酸为浸出剂,有机溶剂甲醇作为后处理剂,去除硅粉中硼杂质的方法。采用电感耦合等离子体发射光谱仪(ICP)等对产品进行表征。酸浸过程优化工艺条件:硫酸质量分数为55%,氢氟酸质量分数为7%,酸浸温度为70℃、酸浸时间为4 H、液固质量比为8∶1。酸浸后可使硅粉中的硼杂质质量分数由6.893x10-6降至3.867x10-6,去除率为41.9%。在酸浸基础上采用有机溶剂甲醇作为后处理剂,杂质硼质量分数降至3.84x10-6,去除率为44.29%。从硼酸浸后形成的产物入手探索提高硼去除率的方法,实验验证了该方法的可行性,为研究湿法冶金预处理太阳能级硅提供了新的参考。As a pretreatment unit for preparing solargrade silicon(SG-Si) by metallurgic method,wet purification could remove most metallic impurities and nonmetallic impurities,such as boron.Experiment researched a new method to remove boron from SG-Si with mixed hydrofluoric acid-sulfuric acid as leaching agent and with organic solvent methanol as posttreatment agent.Samples were characterized by ICP and other analysis methods.When SG-Si powder had been leached at optimized conditions as follows:mass fraction of sulfuric acid was 55%,mass fraction of hydrofluoric acid was 7%,reaction temperature was 70 ℃,reaction time was 4 h,and liquid-solid mass ratio 8∶1,it was found that mass fraction of impurity boron in SG-Si was reduced to 3.867×10-6 from 6.893×10-6 and the removal rate was 41.9% after acid leaching;on the basis of the former procedure,mass fraction of impurity boron was reduced to 3.84×10-6 and the removal rate was 44.29% when treated with organic solvent.Experiment proved the feasibility of the method and provided a new reference for researching on the pretreatment of SG-Si by hydrometallurgy