37 research outputs found

    The Application Study of SME Long Tail Strategy in WEB2.0 Era

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    中小企业作为我国国民经济的重要组成部分,在我国的经济生活中具有重要作用。但是,由于中小企业受自身条件所限,在市场竞争中总是处于不利地位。长尾理论是对传统二八法则的突破,从理论上为中小企业指出了一条新的战略途径,规模将不再是横亘在大企业和中小企业之间的一条不可逾越的鸿沟。WEB2.0时代,信息技术和互联网络的成熟应用,改变了生产、消费以及传播的方式,为中小企业应用长尾战略提供了良好的平台和环境。 本文着眼于中小企业,对我国广大中小企业在生存发展过程中普遍面临的一些问题进行了分析,在查阅了国内外大量关于长尾理论应用的理论成果和典型成功案例的基础上,结合新经济时代的特点以及我国中小企业内外环境的现...As an indispensable component, small and medium enterprises (SME) play an important role in our national economy. Nevertheless, due to their small and medium size, SME always hold an awkward position in the market competition. Toppling over 80/20 Rule, Long Tail Theory points out a new strategy for SME. According to this theory, size is no longer an insurmountable gulf between large enterprises an...学位:工商管理硕士院系专业:管理学院工商管理教育中心(MBA中心)_工商管理硕士(MBA)学号:X20041533

    关联企业认定的国际比较与借鉴

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    关联企业认定,是转让定价税制的起点,虽然在实践中各个国家的具体作法可能有所不同,但大都把认定企业间是否存在关联关系作为对关联企业业务往来进行调整的前提。《联合国范本》和《经合组织范本》都把管理、控制和资本作为认定关联企业的依据,在这两个范本的基础上,..

    Determination of five poisonous elements in holothurian sold on the market by Microwave Digestion with ICP—MS

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    建立了微波消解—电感耦合等离子体质谱法测定海参中Cu,AS,Cd,Hg,Pb 5种有毒元素含量的方法,采用In元素为内标,利用其回收率对以上5种元素的测定结果进行校正,该方法变异系数(CV%)为0.2%--4.0%,In元素加标回收率为96.7%--104.5%,说明该方法灵敏度高,结果准确可信。利用该方法对10批不同市售海参中5种有毒元素含量进行了测定,结果表明10批市售海参中的AS含量均超标,部分批次海参中的Cd、Pb超标,说明市售海参确实存在有毒元素超标的问题。A method based on microwave sample digestion and inductively coupled plasma-mass spectrometry(ICP—MS) detection was established for determination of Cu,As,Cd,Hg and Pb in holothurian sold on the market.Indium was used as internal standard element to calibrate the results of determination of these five elements.Determination limits of these five elements were in the range of 0.006~0.063 μg/g,coefficient of variation(CV%)were in the range of 0.2%~4.0%,and the recovery of In was in the range of 96.7%~104.5%.The method has been applied to determine the five poisonous elements in ten holothurian samples sold on the market.The results indicated that the over-standard problem of poisonous elements in holothurian sold on the market existed.The content of total arsenic was over standard in all the ten samples,but the over standard problem of lead and cadmium was only found in part of the samples.国家自然科学基金(20675021);中国近海海洋综合调查与评价908专项(908-02-05-04)资

    Study on Path Evolution of Fiscal Policy in China and Efficiency Test——Based on Micro-economic Data and Experience since Reform and Opening-up

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    自凯恩斯以来,财政政策对经济增长的效应一直是经济学研究的热点。在改革开放30周年之际,对我国财政政策的路径和绩效进行综合性的分析,显然有助于宏观经济的研究和政策优化。文章考察了1979-2007年的大量宏微观经济数据,并基于财政政策要素组成的数据特点,采用结构性的VAr协整检验和脉冲响应模型,以实证的方式解析了我国财政政策的路径演化和动态效应。Under the influence of Keynes's economic theories,the impact of fiscal policy on economic is always a focus of economic studies.The analyses of path and performance of fiscal policy in China help to make researches on macro-economics and optimize policies.On the basis of the time series data from 1979 to 2007 in China,the paper builds a structural VAR model and makes an empirical test on path evolution of fiscal policy and its dynamic effect.厦门大学经济学院开放性实验课程校内基金项目资

    On the Construction of Economics and Management Experimental Teaching System about Research University

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    实验教学已经成为高校经济与管理类人才培养过程中不可欠缺的重要环节。对于研究型大学来说,更应当根据自身的特点,将人才培养的目标与社会经济发展的需求相结合,充分利用有效的实验教学体系培养具有较强的实践能力和创新能力,适应社会需求的应用型、复合型人才。Experimental teaching has become an important link in the process of University of Economics and Management personnel training.For research universities,we should combine the goal of personnel training and the needs of socio-economic development in accordance with the characteristics.And making full use of effective experimental teaching system to train talents of application and compound with practical and innovative ability

    cuag分子筛化学吸附脱硫的络合机理

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    应用DFT研究了一系列含硫的杂环化合物(噻吩、苯并噻吩、二苯并噻吩和4,6-二甲基二苯并噻吩)以及苯分子在Cu(Ⅰ)-Y、Ag(Ⅰ)-Y分子筛上的化学吸附.计算采用16T分子筛簇模型(H22Si15AlO22),对过渡金属采用了赝势基组,在BLYP/DNP水平上完成.相互作用能的结果表明,阳离子交换的分子筛对含硫杂环芳香族化合物吸附能力的顺序为Cu(Ⅰ)-Y>Ag(Ⅰ)-Y.两种吸附剂对噻吩类分子的吸附能力大于苯分子.噻吩衍生物的吸附能顺序依次为,4,6-二甲基二苯并噻吩<二苯并噻吩<噻吩<苯并噻吩,与实验结果相近.通过自然键轨道计算,研究了分子筛上担载的Cu(Ⅰ)、Ag(Ⅰ)金属离子与噻吩和苯分子之间的π-络合作用,分析比较了自然键电子给体-受体之间的二阶微扰稳定化能,并探索其络合机理

    cuag分子筛化学吸附脱硫的络合机理

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    应用DFT研究了一系列含硫的杂环化合物(噻吩、苯并噻吩、二苯并噻吩和4,6-二甲基二苯并噻吩)以及苯分子在Cu(Ⅰ)-Y、Ag(Ⅰ)-Y分子筛上的化学吸附.计算采用16T分子筛簇模型(H22Si15AlO22),对过渡金属采用了赝势基组,在BLYP/DNP水平上完成.相互作用能的结果表明,阳离子交换的分子筛对含硫杂环芳香族化合物吸附能力的顺序为Cu(Ⅰ)-Y>Ag(Ⅰ)-Y.两种吸附剂对噻吩类分子的吸附能力大于苯分子.噻吩衍生物的吸附能顺序依次为,4,6-二甲基二苯并噻吩<二苯并噻吩<噻吩<苯并噻吩,与实验结果相近.通过自然键轨道计算,研究了分子筛上担载的Cu(Ⅰ)、Ag(Ⅰ)金属离子与噻吩和苯分子之间的π-络合作用,分析比较了自然键电子给体-受体之间的二阶微扰稳定化能,并探索其络合机理

    Sample Pretreatment,Analysis and Detection of Ginsenosides

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    Ginsenosides are an important kind of active ingredients in Panax genus and can be classified into four main types: the protopanaxadiols (PPD),protopanaxatriols (PPT),oleanolic acids (OA) and ocotillol type (OT). Recently,more than 620 kinds of these compounds have been isolated. Their chemical structures are similar but have quite different medicinal functions. It is of vital importance to develop simple and facile sample pretreatment methods and detection techniques to detect the content of ginsenosides in complex matrix. This review includes many kinds of sample pretreatment methods(such as liquid phase extraction,and solid phase extraction) and detection methods(such as high performance liquid chromatography,ultra-performance liquid chromatography,thin layer chromatography,and gas chromatography),etc.,summarizes the sensitivity and recovery of various methods,and reviews the advantages and disadvantages of each method and its research progress.</p

    刺茶美登木的化学成分研究(英文)

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    从刺茶美登木地上部分的95%乙醇提取物中分离并鉴定了27个化合物:prinsepiol(1),(+)-松脂醇(2),(-)-松脂醇(3),(-)-丁香树脂醇(4),(+)-cycloolivil(5),(-)-橄榄树脂素(6),1-羟基-松脂醇(7),ilelatifolD(8),东莨菪素(9),β-香树素乙酸酯(10),α-香树素乙酸酯(11),fupenzicacid(12),(+)-儿茶素(13),secoisolariciresinol(14),软脂酸-1-甘油单酯(15),植物醇(16),咖啡
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