Customer Relationship Management System Design and Implementation

在我国加入了WTO之后，各大银行所要面临的压力也变得越来越大，进而以客户为中心的销售经营理念已经成为各大银行营销的模式，在这种情况下，各大银行相继将客户关系管理(CustomerRelationshipManagement)，也就是我们经常提到的CRM引入各自的银行业务处理中。所谓的银行客户信息管理系统就是指在银行的运营环境中管理全行客户资料以及挖掘潜在客户的计算机应用系统。银行客户信息管理系统已经成为银行迅速发展不可缺少的一个环节。本文从银行客户关系管理系统的总体设计着手，结合我国银行客户关系管理系统的具体实际情况，设计实现了银行客户关系管理系统。首先对研究银行客户关系管理的背景、意义做了简...In China's accession to the WTO, the major banks have to face the pressure to become more and more, and then a customer-centric sales philosophy has become the major banks marketing model, in this case, the major banks have customer relationship management, this is what we often referred to CRM) into their respective banking processing. The so-called bank customer information management system ref...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X201023034

纳米薄层Pt-Ru及Pt-Pd表面合金电极上CO吸附的原位FTIR研究

以玻碳为基底 ,通过电化学共沉积的方法制备纳米级厚度的表面合金电极 ,运用电化学原位红外反射光谱研究CO的吸附 .结果表明 ,所制备的PT ru和PT Pd纳米级厚度的表面合金电极均具有异常红外效应 ,即吸附在不同表面位上的CO给出的红外谱峰强度增强 ,其方向与相应金属电极表面获得的谱峰方向相反 .研究还显示PT ru和PT Pd表面合金在电催化和表面研究中的重要意义国家自然科学基金!(批准号:29833060)资助项

Y型聚乙二醇干扰素琢-2b注射液治疗HCV基因2/3型慢性丙型肝炎患者疗效和安全性的多中心随机对照试验研究

目的以标准剂量的聚乙二醇干扰素(Peg IFN)α-2a联合利巴韦林作为阳性对照,评价新型试验药物Y型Peg IFNα-2b注射液联合利巴韦林治疗2型/3型慢性丙型肝炎(CHC)患者的疗效和安全性。方法采用多中心、随机开放、阳性药对照的Ⅲ期临床试验,筛选符合要求的2型/3型CHC患者,按照2:1的比例随机分配到Y型Peg IFNα-2b组和Peg IFNα-2a组,同时口服利巴韦林,疗程24 w,停药随访24 w。采用Abbott Real Time HCV Genotype II检测HCV基因型,采用Cobas Taq Man实时定量PCR法检测血清HCV RNA水平。详细记录不良事件。主要疗效指标为持续病毒学应答(SVR),并进行非劣效检验。结果本试验实际入组2型/3型CHC患者255例,实际治疗241例。全分析集(FAS)数据显示,158例试验组和83例对照组患者SVR分别为85.4%(95%CI 79.94%~90.94%)和79.5%(95%CI 70.84%~88.20%,P=0.2402);对符合方案分析集(PPS)人群分析显示,试验组和对照组患者SVR分别为87.9%(95%CI 82.45%~93.27%)和85.9%(95%CI 77.82%~94.01%,P=0.7060),率差的95%可置信区间均符合非劣效标准;对PPS人群分析显示,85.8%受试者获得了早期病毒学应答(RVR),RVR的阳性预测值为90.1%;试验组和对照组不良事件发生率相似,分别为95.6%和95.2%,严重不良事件发生率分别为3.8%和3.6%。结论应用Peg IFNα联合利巴韦林治疗2型/3型CHC患者,新型试验药物Y型Peg IFNα-2b具有与对照药物Peg IFNα-2a相似的疗效和安全性。国家科技部“十二五”重大专项(编号:2012ZX10002-003)；“重大新药创制”十二五科技重大专项(编号:2012ZX09303019)

Rare Earth Eu Doped PtRu/C Catalysts and Their Properties for Methanol Electrooxidation

Corresponding authors. Email: [email protected], [email protected]; Tel: +86-773-5846279, +86-592-2180181.[中文文摘]采用化学还原和热处理方法对商业PtRu/C催化剂进行稀土Eu掺杂,制备了不同Eu含量的PtRuEux/C催化剂.透射电子显微镜(TEM)、X射线能量色散光谱(EDX)、X射线衍射(XRD)和X射线光电子能谱(XPS)等方法表征催化剂的结果表明,Eu的掺杂未改变PtRu/C催化剂的平均粒径(约为3nm),并且Eu以金属和氧化物两种形态修饰PtRu表面.循环伏安和计时电流法测试显示,PtRuEux/C催化剂较商业PtRu/C对甲醇氧化具有更高的活性,其中PtRuEu0.3/C的活性最高.运用原位傅里叶变换红外(FTIR)光谱从分子水平研究了该催化剂对甲醇电催化氧化的反应过程,检测到甲醇在催化剂上解离吸附的吸附态产物是线型吸附态CO(COL),Eu的掺杂使COL的氧化电位降低,明显提高了催化剂的活性和抗CO毒化的能力.[英文文摘]Commercially available PtRu/C catalyst was doped with Eu by chemical reduction and sintering, resulting in PtRuEux/C catalysts with different Eu contents. The catalysts were characterized by transmission electron microscopy (TEM), energy dispersive X-ray (EDX) spectroscopy, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). Results showed that Eu doping did not change the average size of the PtRu/C catalysts (ca 3 nm), and their surfaces were modified by both Eu metal and oxide. Cyclic voltammetry and chronoamperometry demonstrated that the activity of the PtRuEux/C catalysts was higher than that of commercial PtRu/C for methanol electrooxidation. Among the PtRuEux/C catalysts, PtRuEu0.3/C exhibited the best performance. The electrocatalytic oxidation of methanol on the catalyst was further investigated by in situ Fourier transform infrared (FTIR) spectroscopy at molecular level. Results indicated that the adsorbed species derived from the dissociative adsorption of methanol on the catalysts were linear-bonded CO (COL). Eu doping decreased the oxidation potential of COL and thus significantly enhanced the activity of the catalysts and their tolerance to CO.国家自然科学基金(20833005,20828005);教育部留学回国人员科研启动基金; 厦门大学固体表面物理化学国家重点实验室开放课题;广西研究生教育创新计划项

First Sagittarius A* Event Horizon Telescope Results. VIII. Physical Interpretation of the Polarized Ring

In a companion paper, we present the first spatially resolved polarized image of Sagittarius A* on event horizon scales, captured using the Event Horizon Telescope, a global very long baseline interferometric array operating at a wavelength of 1.3 mm. Here we interpret this image using both simple analytic models and numerical general relativistic magnetohydrodynamic (GRMHD) simulations. The large spatially resolved linear polarization fraction (24%–28%, peaking at ∼40%) is the most stringent constraint on parameter space, disfavoring models that are too Faraday depolarized. Similar to our studies of M87*, polarimetric constraints reinforce a preference for GRMHD models with dynamically important magnetic fields. Although the spiral morphology of the polarization pattern is known to constrain the spin and inclination angle, the time-variable rotation measure (RM) of Sgr A* (equivalent to ≈46° ± 12° rotation at 228 GHz) limits its present utility as a constraint. If we attribute the RM to internal Faraday rotation, then the motion of accreting material is inferred to be counterclockwise, contrary to inferences based on historical polarized flares, and no model satisfies all polarimetric and total intensity constraints. On the other hand, if we attribute the mean RM to an external Faraday screen, then the motion of accreting material is inferred to be clockwise, and one model passes all applied total intensity and polarimetric constraints: a model with strong magnetic fields, a spin parameter of 0.94, and an inclination of 150°. We discuss how future 345 GHz and dynamical imaging will mitigate our present uncertainties and provide additional constraints on the black hole and its accretion flow

孔结构均匀可控的SiO_2和Al_2O_3多孔陶瓷制备及性能研究

多孔陶瓷在过滤、隔热、吸音、催化剂载体等领域具有广泛应用。常规粉体制备的多孔陶瓷孔结构的可控性差,主要由于所用的不规则形貌粉体在烧结过程中容易发生团聚收缩,导致不均匀烧结。高温等离子体制备的SiO_2、Al_2O_3粉体,具有球形、致密、低比表面的特性,其表面能分布均匀、热稳定性良好,在多孔陶瓷烧结制备中能有效地避免颗粒间的团聚收缩,使设计的功能孔隙完好保留。本研究利用球形SiO_2颗粒(20-50&mu;m)紧密堆积造孔,结合注凝成型,获得了孔隙均匀、贯通、光滑的多孔陶瓷,通过改变原料粒径线性地调控了陶瓷孔径(8-25&mu;m);对孔道进行渗透性测试,发现150 KPa下氮气渗透通量达到4.4&middot;10~6 L/(m2h),是常规不规则孔道的30倍,100 KPa下纯水通量为30&middot;10~4 L/(m~2h),是常规孔道的6倍左右。随后,将具有均匀贯通孔道的多孔陶瓷发展到能耐更高温度的Al_2O_3体系中,陶瓷制备之前,将原料颗粒进行硅溶胶包覆预处理,同时实现了烧结温度的降低与孔结构的完好保留,获得的陶瓷具有莫来石烧结颈部,有利于抗热震性能的提高;得到的Al_2O_3/SiO_2高温复合多孔陶瓷,同样具有优越的渗透性。研究发现,非晶态SiO_2颗粒实现堆积孔隙完好保留的原因是颗粒比表面积极低,颗粒表面经历软化-粘稠-熔化的温度区间延长,高强烧结颈部可以在表面粘稠阶段获得而没有孔隙收缩;晶态Al_2O_3颗粒(20-50&mu;m)的低活性则来源于低比表面积带来的低传质效率,掺杂的氧化硅促进了Al~(3+)的熔融传质,从而实现了高强颈部的低温烧结。</p

一种50GHz信道间隔光通道监测仪的研究

为实现50GHz信道间隔的密集波分复用（DWDM）系统中的光通道性能监测,文章提出一种基于衍射光栅的OCM（光通道监测仪）结构,介绍了该OCM的工作原理。从理论上对其工作范围、响应时间、波长分辨率和通道分辨能力进行了计算和分析,并制作了样品进行实验测试。结果表明,对于传输速率为10Gbit/s/40Gbit/s混合传输的50GHz信道间隔的DWDM系统,该OCM可以对波长、功率性能进行准确监测

2次降雨条件下不同土壤细沟侵蚀分析

不同土壤细沟侵蚀发育对比研究是探讨细沟侵蚀机制的必要内容。通过间隔为24 h的2次人工模拟降雨,在不同降雨强度(1.5,2.0,1.0 mm/min)、不同坡长(5、10 m)的试验条件下,分析坡度为20°时塿土和黄绵土2种土壤细沟侵蚀过程中产流产沙、空间变化的差异。结果表明:1)从坡面产流量来看,2种土壤在2次人工降雨过程中有相似的产流过程,坡长和降雨强度相同时,塿土坡面产流量大于黄绵土;2)从坡面形态看,第1场降雨过程中塿土坡面表面积、细沟侵蚀强度大于黄绵土坡面,但黄绵土坡面一旦发生细沟侵蚀,其体积变化幅度剧烈于塿土坡面;3)塿土在第1场降雨过程中侵蚀速率的变化过程可以反应细沟发育的各个阶段,较大降雨强度使黄绵土发生细沟侵蚀侵蚀,其细沟发育的各个阶段持续时间长于塿土,即黄绵土细沟形态变化缓慢