757 research outputs found

    The Impacts of Delaying Retirement on China's Unemployment Rate:Based on Simulation Analysis of Regional Differences

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    近几年来经济学术界关于延迟退休问题的讨论颇为引人注目,其中实施延迟退休政策对就业市场的影响已然成为讨论的焦点之一。延迟退休究竟会对失业率产生何种影响?经济学术界对此并未形成广泛一致的意见。本文在借鉴已有成果的基础上,对延迟退休政策的作用机制进行分析,并讨论该政策可能对我国四大经济区域的失业率造成的影响。 在理论部分,本文从为何我国需要延迟退休年龄这一问题入手,借鉴学术界关于退休政策的理论成果,对我国目前的退休制度进行剖析,并探讨了延迟退休的必要性以及可行性。在此基础上,本文分析了延迟退休对就业市场的作用机制问题。基于工作搜寻理论,本文借鉴了Lefèbvre的理论模型来分析老年人的退休行为将会...In recent years, the debate on the issue of delaying retirement has been conspicuous, and the impact of this policy on the job market has become one of the focuses of the discussion. What is the impact of delaying retirement on the unemployment rate? The economic academics have not formed a broad consensus on this. On the basis of the existing achievements, this paper analyzes the mechanism of the...学位:经济学硕士院系专业:经济研究所_政治经济学学号:1602014115216

    Research on the teaching of the Extended meaning of Compound directional complement——In the center of Visualization and Explicit instruction which based on Scaffolding Instruction

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    趋向补语是汉语中一种非常独特的语法结构成分,它不仅难学,而且难用,是对外汉语教学的重点。复合趋向补语又在简单趋向补语之后加上了立足点与参照物,无疑又加深了难度。其中,意义更加虚化的引申用法对于外国学生来说便更是重中之重,难中之难了。目前,国内对于趋向补语引申用法的研究已颇为丰富,也比较成熟了,针对偏误进行分析、研究习得顺序的论文也相对较多,但是专门针对其进行教学设计和实证研究的论文却很少,用于其的教学方法也比较单一。 笔者首先对复合趋向补语的引申用法进行了归纳和总结,然后对支架式教学、显性教学及形象化教学的基本构成及应用进行概述,在此基础上设计样课,进行教学对比实验。 本文的教学实验主要分...Directional complement is a very unique grammatical structure components in Chinese.It is the focus in the teaching of Chinese as the foreign language,because it is not only difficult to learn, but difficult to use. Undoubtedly, compound directional complement is more important and more difficult,because it adde to the foothold and reference after the directional complement. For foreigners,the m...学位:汉语国际教育硕士院系专业:海外教育学院_汉语国际教育硕士学号:2652014115126

    The existing situation and discussion on perfecting mechanism of integrated emergency management work in ShaoXing

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    近年来,在经济社会转型的关键期,我国城市公共危机事件频发,并且呈现出频率高、范围广、传播快、损失大的复合性特征。这一方面给广大群众的生命财产、经济社会的进步带来重大损失;另一方面也一定程度影响到了地方政治、经济、社会的和谐稳定、经济的发展和社会的和谐。国内广西南宁于2002年首创城市应急联系中心后,上海、深圳等先进城市也纷纷建立了较高水平的城市应急联动体系。但总体来看,这些先进城市在发挥实质性效益的专家决策和实行全民参与制的应急联动管理建设上仍然距离西方国家的纽约、伦敦和东京等发达城市有着一定的差距,在相关应急处理的法律法规体系建构上,也还有许多工作要做。绍兴现行的社会应急联动体系也存在这些普...In recent years,in the critical period of economic and social transformation, the urban public crisis happens frequently, which presents some compound characteristics of high frequency, wide range, fast spread, large loss. On the one hand, it has caused a large loss to the people's life and property as well as the development of the social economy. On the other hand, it has affected the local poli...学位:公共管理硕士院系专业:公共事务学院_公共管理硕士学号:1392011115049

    Design and Implementation of Teaching Material Management System for an University

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    随着我国高校教育事业的快速发展,各个高等院校招生规模不断地扩大,办学规模也越来越大,同时也涌现出各种不同门类的专业,随之而来的课程和配套的各种门类的教材种类和数量也不断激增,原有的手工教材管理模式已经无法满足日益高标准的教学管理要求。为解决这一突出的矛盾,越来越多的高校希望通过使用信息化的管理方法和手段建立一套先进的教材管理系统来对教材进行规范管理,从而提高教材管理的信息化水平和效率,那么开发一套高校的教材管理系统成为一件迫在眉睫的事情。 本文设计的一种基于C/S模式(客户端/服务端模式)管理系统正是基于以上的情况,希望能够在使用该系统后彻底解决教材管理难等诸多问题,其根本的想法是采用信息化...With the rapid development of higher education in our country, the scale of enrollment is increasing, the scale of running school is increasing, and the variety of different categories and the number of teaching materials are also increasing. In order to solve the prominent contradiction, more and more colleges and universities hope to set up a set of advanced teaching material management system b...学位:工程硕士院系专业:软件学院_工程硕士(软件工程)学号:X201323095

    “阅读、写作、翻译”三位一体的翻译写作学课堂模式探索

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    翻译写作学是全新的翻译学理论,它主张翻译理论要和翻译教学实践相结合.在翻译教学实践方面,它提出从目标语写作训练、翻译中译文写作训练及译文修改(检视)三个方面实施翻译写作课,但并没有提出具体的实施方式.本文针对翻译写作学在翻译教学中的研究缺失,试图建立起符合翻译写作学原理的阅读、写作、翻译三位一体的翻译写作课堂模式,通过商务书信文本翻译课堂的展示,对翻译写作课堂进行探索,力图完善翻译写作学的理论系统.福建省教育科学“十二五”规划项目“阅读、写作、翻译”三位一体的翻译写作学课堂模式探索(FJJKCG14-188)的最终成

    On the relationship between the NIR peak of the Reflectance Spectrum and Concentrations of Chlorophyll a in Various Waters

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    水色遥感是大尺度连续实时探测叶绿素a浓度的重要技术手段,然而对于发生水华/赤潮、叶绿素a极高的水体,传统的蓝绿波段反演算法往往不能奏效,人们为此发展了荧光高度(FLH)法,试图利用阳光激发的浮游植物荧光发射信号实现叶绿素a的精确反演。近来的研究表明当叶绿素a含量达到一定程度或者是出现类似陆生植被的特征时,荧光峰被掩盖,出现向长波方向移动的红边峰,无论何者,本研究统称为近红外反射峰(简便起见以下称红峰)。该峰与叶绿素之间的关系是否存在着一定的变化规律,尚不清楚,澄清这一问题,是有效利用FLH法的基本保障。为此,本研究选取淡水水体(厦门大学芙蓉湖、水库)、半咸水水体(筼筜湖)、赤潮/水华水体(包括...Pioneering studies showed a linear correlation between chlorophyll-a concentration (Chl) and natural fluorescence. FLH (fluorescence line height) was thus designed to measure the solar-stimulated fluorescence of phytoplankton and then to retrieve Chl. However, while the current MODIS bands used to estimate FLH were 665.1 nm, 676.7 nm and 746.3 nm, more and more investigations revealed that when Ch...学位:理学硕士院系专业:海洋与环境学院环境科学与工程系_环境科学学号:2262006115236

    The Exchange Rate Determination and Volatility Theory: The Research based on Open DSGE Models

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    本文创新性地使用一个大型的开放动态随机一般均衡模型(DynamicStochasticGeneralEquilibrium,简称DSGE)来推导人民币实际汇率在长短期内的行为方程与系统变化规律,利用中国的数据对模型参数进行了校准与估计,其中使用贝叶斯估计方法估计了部分参数的数值;利用人民币实际汇率的政策函数分析了实际汇率与整体经济当中各内生经济变量之间的相关性(长期走势),并讨论了人民币实际汇率对各种外生冲击的脉冲响应曲线。最后基于所有分析提出了一些政策建议。 本文的主要贡献在于使用一个大规模的开放DSGE模型来分析汇率决定与波动问题。模型基于新凯恩斯主义宏观经济学的最新发展,其核心是Chr...This paper innovativelyuses a large-scale open DSGE model to derive the behavior equationsand the system variationlaws of the real RMB exchange rate in the short term and long term.Besides, some of the parameters are calibrated and the others are estimated by means of Bayesian estimation. The correlation (the long-run trend) between the real exchange rate and some endogenous economic variables are...学位:经济学博士院系专业:经济学院_统计学学号:1542010015375

    Analysis of complete genome sequence and cloning, expression of key enzymes in formaldehyde metabolic pathways of the deep-sea bacteria Pseudomonas sp.IOFA1

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    深海中蕴藏着巨大的生物资源。生境独特多样的深海沉积和洋壳环境蕴育了海底深部生物圈微生物的高度多样性,表现为物种、基因、生理生化和生态功能的多样性。海底深部生物圈已经成为生物技术开发的一个重要领域。 从深海沉积物中筛选到一株可高效降解甲醛的菌株(Pseudomonassp.IOFA1),本文对该菌株进行了全基因组的测序,并对该菌株甲醛降解途径中的关键酶醇脱氢酶,甲醛歧化酶和甲酸脱氢酶展开研究。首先利用第二代高通量测序技术solexa对该菌株进行了全基因组测序以及基因预测与注释。测序结果表明,该菌株的基因组由一个环状的染色体构成,GC含量61.38%,预测所得gene数为5361个,Coding...Deep sea contains huge biological resources. Unique variety of deep-sea sediments and oceanic crust environment gave birth to the high diversity of deep-sea microbial, including diversity of species, genetic, physiological, biochemical, and ecological function. Deep sea biosphere has become an important area of technology development. A strain of bacterium(Pseudomonas sp. IOFA1) capable of degrad...学位:理学硕士院系专业:生命科学学院生物学系_生物化学与分子生物学学号:2162010115233

    Electrothermic Properties and Preliminary Applications of Freestanding Si-O-C Films for LED Heat Dissipation

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    LED(LightEmittingDiode)作为一种性能优异的半导体器件,其芯片的发光效率仅为10%~20%,80%~90%电能转化为热能。如热能未能及时导出,LED在发光过程中PN结温度过高,将导致器件老化、荧光粉加速失效、使用寿命缩短等问题。LED向高光强、高功率、小尺寸趋势发展,LED的散热问题日渐突出。LED芯片的输出功率不断提高,大耗散功率带来的大发热量及要求高的出光效率给LED的封装材料提出了更新更高的要求。选择合适的基板,对LED散热性具有重要影响。 近年,碳化硅颗粒增强复合材料因具有低热膨胀系数、高热导率及密度小等特性,是新开发的功能复合材料之一,用作新型电子封装材料前景广...LED (Light Emitting Diode) is an excellent semiconductor optoelectronic device which transforms electricity into light. Its luminescent efficiency is only 10% ~ 20%, which means that 80% ~ 90% of electric energy is converted into thermal energy. If the heat could not be transported timely to outside, the junction temperature of LED will be increased, the shortening of service life will be suppress...学位:工学硕士院系专业:材料学院_材料学学号:2072009115005

    The Current Situation and Improvement of China's Preferential Measures for FDI under New Circumstance

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    当今世界,投资自由化已成为经济全球化的核心内容,对外资实行国民待遇标准的呼声日益高涨,成为各国制定外资政策时考虑的一个重要因素;同时,中国加入WTO的过渡期已经结束,中国国内要求取消外资优惠措施的声音越来越响亮,我国“十一五计划”也提出要“逐步形成内外资企业政策一致”,2008年颁布的《中华人民共和国企业所得税法》取消了原有的许多外资所得税优惠。在此背景下,中国外资优惠措施的去留已经成为国内外关注的焦点。因此对外资优惠措施进行分析研究并对我国现行外资优惠措施的调整和完善提出相应建议,对我国现阶段社会发展具有重大的现实意义。这也是本文写作的目的和意义所在。 本文除了引言和结论外共分三章。 第...Nowadays, investment liberalization has become the core of economic globalization, the voice of implementation of national treatment to foreign direct investment is rising, and it becomes a very important factor for countries to take into account when making their foreign policies. Meanwhile, the transition period for China’s entry into WTO has expired, the voice of asking for the abolition of pre...学位:法学硕士院系专业:法学院法律系_国际法学(含国际公法、国际私法、国际经济法)学号:1202005130047
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