Design and Implementation of Scholarship Evaluation System for Guangxi University

目前，随着我国高校招生规模的进一步扩大，传统的学生管理工作已经不能满足高校学生管理工作的实际需要。以高校奖学金评定系统为例，传统的高校奖学金评定由于学生规模较少，相关操作与信息计算的难度并不大，但是随着学生数量的增加，为了保证奖学金公平合理的发放，考评必不可少。奖学金工作的信息化管理可以使从事学校教学质量管理工作的人员从繁重的劳动中解脱出来，奖学金系统的信息化管理可以轻松快捷地完成奖学金的评定管理任务，使评定工作更加高效和系统。基于此，奖学金系统的开发能够实现对学生档案管理、学生成绩管理、奖学金管理的自动化与规范化。 系统的技术框架是基于.NET平台的三层架构技术，前台开发采用的是ASP.N...With the development of society and the progress of science and technology, the application of computer in various fields of the society is becoming more and more extensive. Take the university scholarship evaluation system as an example, the traditional university scholarship evaluation as a result of the student scale is small, the correlation operation and the information computation difficulty...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X201223071

Experimental Study On Mass-spun Nanofibers Via Tip-induced Electrospinning

纳米纤维在生物医学、能源、空气及水体过滤等领域有着极大的潜在应用价值，近年来成为纳米科学领域的关注热点，实现纳米纤维的批量化制造是其获得工业化应用的关键。静电纺丝是生产纳米纤维的重要方法，以其结构简单，工艺可控性好，制备成本低廉等优势，成为最具工业化生产潜力的纳米纤维制造技术之一。本文通过介绍近年来的批量电纺方法和典型批量静电纺丝商业化设备的发展现状，对比分析了各电纺方法存在的优缺点以及制约纳米纤维批量制造设备发展的重要因素，提出需基于多针尖诱导批量电纺方法，研发出具有自主知识产权且具备工业化发展潜力的纳米纤维批量制造系统。 设计研发一套多种电纺参数可调的多针尖诱导批量电纺系统，在该系统上进...Due to theirs great potentials in biomedicine, energy, air/water filtering, etc., nanofibers have been an intensive focus, and theirs mass production therefore is meaningful. Electrospinning is a good technique to produce nanofibers because of its simplicity, good controllability, and low cost. This technique has been regarded as one of the most potential way for nanofiber industrialization. In th...学位：工程硕士院系专业：物理与机电工程学院_机械工程学号：1992010115272

Joint Decisions by Contracting Parties of Investment Treaties and the Proper Control of Treaty Interpretations by Tribunals: A Study of Article 30(3) of the 2012 U.S. Model BIT

随着国际投资实践的发展，国际投资法的发展呈现出新的复杂性、不确定性和扩展性。尤其是近年来，国际投资条约仲裁案件数量的攀升，投资条约的诸多不足也暴露出来。有关实体法的模糊或缺失、程序法的缺陷等等，不仅使得东道国的主权面临挑战，也带来了投资条约仲裁的“正当性危机”。围绕着改造投资仲裁机制的学术讨论以及具体的条约改革实践正在进行当中。 在此过程之中，投资仲裁制度无疑成为关注的焦点。规定以仲裁方式解决投资纠纷已然成为各国双边投资协定中极为重要的组成部分。实践中，往往会出现不同仲裁庭就同一条款解释不一的情况。为保证条约适用的统一性，美国《2012年双边投资条约（BIT）范本》沿用了《2004年BIT范...Investment Treaties are concluded by States. Where investment treaties refer to Investor-State arbitration, arbitral tribunals interpret treaty provisions in the context of the dispute settlement. Some of these interpretations have raised concerns, because of a perceived lack of consistency, predictability and quality. The concerns have resulted in a confidence even legitimacy crisis in the arbitr...学位：法学硕士院系专业：法学院_国际法学(含国际公法、国际私法、国际经济法)学号：1362010115015

新生儿原发性先天性青光眼手术疗效分析

【目的】探讨出生即发病的原发性先天性青光眼（NPCG）患儿早期行滤过手术的疗效。【方法】收集3岁以内接受小梁切开术或小梁切开联合小梁切除术NPCG患儿39例70眼，比较术前和术后眼压、眼前段情况，角膜横径，杯/盘比，并记录随访视力。采用Kaplan-Meier生存分析法分析手术成功率，Log-Rank检验法比较出生1月内手术（22眼）与1月后手术（48眼）的手术成功率。【结果】所有患儿术后眼压（mmHg；16.9±5.2）比术前（28.7±5.8）明显降低（P<0.001），术后角膜变透明或混浊减轻、角膜横径无变化、C/D值（杯盘比）减小，Kaplan-Meier生存分析法得出手术成功率在术后第1、2、3、6、9年分别为94.3%（63眼）、90.6%（52眼）、85.9%（40眼）、85.9%（23眼）、85.9%（15眼）。出生后1月内手术者手术成功率、术后视力高于出生1月后手术者（P=0.033；P=0.01）。未出现滤过泡渗漏、滤过泡炎、眼球萎缩等严重并发症。【结论】NPCG患儿早期行小梁切开或小梁切开联合小梁切除术手术安全、疗效确切

Experimental Study on Tip-Induced Electrospinning

针尖诱导电纺技术(TIE)利用针尖阵列插入聚合物溶液表面后快速抽离,由于高压强电场和黏性力作用在液面抽离处诱导形成泰勒锥,进而在收集板上得到大量纳米纤维,实现纳米纤维的批量制造.实验结果表明在不同电极间距下,电纺阈值电压随着溶液浓度的增加而增大.当工作电压为63 kV,溶液槽尺寸为142 MMx50 MM时,电纺聚氧化乙烯(PEO)溶液的纤维产量达1.961 2 g/H.当工作电压从45 kV增加到63 kV时,纤维沉积均匀性变化范围为31.08%~43.23%.Tip-induced electrospinning(TIE) is demonstrated to produce nanofibers with high throughput.Probe array was plunged into the plane polymer solution and then withdrawn quickly,and due to the effects of viscous force and the electric force,Taylor cones were generated from the position where the probes left,and then mass nanofibers were obtained on the collector.The experimental results show that the threshold voltage under different electrode distances increases with the increase of the concentration,and the mean throughput of polyethylene oxide(PEO) nanofibers is up to 1.961 2 g / h when the solution tank size is 142 mm × 50 mm and the applied voltage is 63 kV.And the maximum deposition error of nanofibers is within the range of 31.08% —43.23% on the condition that the applied voltage changes from 45 kV to 63 kV.国家自然科学基金重点资助项目(51035002); 国家自然科学基金资助项目(51205334); 福建省自然科学基金资助项目(2011J05139

中国医务人员医疗标准执行现况及影响因素调查

目的调查我国医务人员医疗标准执行现况及其影响因素,进而了解标准未完全执行的原因。方法采用多阶段分层抽样法,通过实地和网络问卷调查相结合的方式,根据国家统计局地区划分标准,共招募了中国东部、中部、西部和东北4个地区共抽取10375名医务人员填写问卷。结果中国医务人员自我报告的对专业范围内已发布的标准执行率为82.2%。样本医务人员对医疗标准执行率上存在地区(Wald=10.973,P<0.05)、机构级别(Wald=95.052,P<0.01)以及标准认可程度(Wald=689.166,P<0.01)间存在差异。结论中国医务人员对所在专业范围内已经发布的相关标准的自我报告执行程度较高。国家卫健委医疗相关标准调查(2018-65

Construction of polyoxometalates-based coordination polymers through direct incorporation between polyoxometalates and the voids in a 2D network

通讯作者地址: Long, YX (通讯作者), Xiamen Univ, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surface, Key Lab Analyt Sci,Minist Educ, Xiamen 361005, Peoples R China 地址: 1. Xiamen Univ, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surface, Key Lab Analyt Sci,Minist Educ, Xiamen 361005, Peoples R China 2. Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, Xiamen 361005, Peoples R China 电子邮件地址: [email protected] series of polyoxometalates (POMs)-based coordination polymers, namely, {[Cu(2,3-Me(2)pz)(2,5-Me(2)pz)(0.5)](4)-(SiW12O40)(2,5-Me(2)pz)}(n) (2,3-Me(2)pz) =2,3-dimethylpyrazine; 2,5-Me(2)pz = 2,5-dimethylpyrazine; 1), {[Cu-2(4,4'-bipy) (4)(H2O)(4)](SiW12O40)(H2O)(18)}(n) (4,4'-bipy) 4,4'-bipyridine; 2), {[Cu(2-Mepz)(1.5)](3)(PMo12O40)(H2O)(3.5)}(n) (2-Mepz) 2-methylpyrazine; 3), {[Ag(2,3-Me(2)pz)(1.5)](4)(SiW12O40)}(n) (4), {[Cu(pz)(1.5)](4)(SiW12O40)(H2O)(3)}(n) (pz = pyrazine; 5), {[Cu(2,3-Me(2)pz)(1.5)](4)(SiW12O40)}(n) (6), {[Cu(4,4'-bipy)(1.75)](4)(SiW12O40)(H2O) 2}(n) (7), and {[Cu-2(4,4'-bipy)(4)(H2O)(4)](SiW12O40)(4,4'-bipy)(2)(H2O)(4)}(n) (8), were synthesized through direct incorporation between POMs and the voids of the 2D network. Crystal structural analysis reveals that the relationship between the size of the void of the 2D network and that of POMs is of key importance for successful synthesis of POMs-based open metal-organic frameworks. Guest replacement shows that the pore size of the framework constructed through direct incorporation between POMs and the voids of the 2D network is very sensitive to guest molecules

一种背接触型晶体硅太阳能电池及其制作方法

本发明提供一种背接触型晶体硅太阳能电池，包括硅基底(10)、n型或p型掺杂的多晶硅层(15)，在所述n型或p型掺杂的多晶硅层(15)和硅基底(10)之间形成第一钝化层(11)。本发明还提供这种背接触型晶体硅太阳能电池的制作方法，通过热氧化法引入第一钝化层(11)。通过这样方法改进的太阳能电池会大大改善电池表面的钝化效果，减少光生载流子的复合，降低电学的损失，从而获得更高的转换效率，实现更大的功率输出

design and implementation of paas-oriented performance modeling system for web applications

按需供给是PaaS平台面临的一个核心挑战。传统以局部优化为目标的反馈控制方法难以实现全局资源供给最优,为了更合理分配资源,利用性能模型预测Web系统的资源需求就变得至关重要。随着平台服务化的发展,其部署方式由封闭环境转为开放的服务形式,为模型的构造提出了新的挑战:由于应用和平台分属不同组织,大大增加了解系统全貌的难度,所以传统手工建模方法除了建模难度大之外,更难以在开放的环境下实施;在开放和动态的环境下,用户的使用难以预期,而用户行为的改变又会极大的影响系统行为,因而也有必要使模型适应用户行为的变化。针对上述问题,给出了一种动态性能建模工具的设计与实现。该工具在Web系统中插入必要的探针收集系统运行时状态,并输出为日志。通过周期性的对这些日志进行分析,从大量数据中提取出性能模型,使其与实际用户使用情况相符。文中以TPC-W基准测试为例,验证了该系统的有效性。国家973重点基础研究发展计划基金项目(2009CB320704)|国家自然科学基金项目(61173003)|国家科技重大专项“核高基”基金项目(2011ZX03002-002-01)On-demand provision is a core challenge for PaaS platform. Traditional feedback method solves the problem of local optimization and is hard to realize global optimization of resources provision. In order to allocate resources reasonably, performa-nce model plays an important role in predicting resources demand of Web applications. However, with the development of the service platform, the way of deployment is changed from closed environment to an opened one, such as PaaS. New challenges are broughr for performance modeling of such systems. First, it is difficult to build a performance model in advance, because applications and platforms belong to different organizations. Second, in the opening and dynamic environment, the user behaviors is unexpected, which makes it is necessary to let the model adapt to the change of the mixed workload mode. To solve above problems, a dynamic performance modeling tool is designed and implemented. The tool is used to collect the running condition of Web systems at first step by inserting necessary probes into those Web systems and writing to log files. And then through periodically analyzing these log files, the tool extracts a performance model from the mass data which is in coincidence with the use condition of Web users. At last, our work is evaluated with TPC-W bench mark, whose results can demonstrate the effectiveness of our approach