299 research outputs found

    Program Content and Audience Analysis: FINANCE of PHOENIX

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    随着经济下行趋势的严峻,股市的动荡,更多的受众开始关注财经新闻,尤其是散户投资人希望通过权威的媒体获取更多的财经新闻信息,进而了解经济形势和知识,从而为投资行为提供信息参考和专业指导。电视财经新闻作为主流传统媒体,有着动态性和权威性的特征,因此本研究希望通过对电视财经新闻节目内容和受众的研究,探究出电视财经新闻的传播现状和受众认知等问题。 本研究结合定量和定性的研究方法,选取成熟资本市场环境下的凤凰卫视资讯台的王牌财经节目《金石财经》进行研究。笔者先用内容分析法客观描述了《金石财经》节目的报道主题、报道类型和报道方式等问题,在对《金石财经》的节目有了基本的认识之后,运用文本分析的方法对《金石...With the severe economic downturn and the turmoil in the stock market, more and more audiences began to pay attention to the financial news, especially for retail private investors who hope to obtain much more financial news and information from the authoritative media to grasp the economic situation and professional knowledge, so as to get some professional reference and guidance for their invest...学位:文学硕士院系专业:新闻传播学院_新闻学学号:1052014115308

    How exotic mangrove species Sonnoratia apetala and native species Kandelia obovata response to global changes

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    本研究旨在探讨气候变暖和海平面上升背景下,外来红树植物无瓣海桑(Sonneratiaapetala)和本土红树植物秋茄(Kandeliaobovata)的响应机制。在温州鳌江、福建云霄和海南东寨港三地,通过构建模拟海平面上升的人工水位平台(Marshorgan),在野外自然潮汐条件下模拟海平面上升40cm和80cm的情境;同时在平台上加装开顶箱(Opentopchamber)装置,通过被动增温模拟未来大气增温的情景。根据对云霄漳江口红树林的高程调查结果,将水位平台的海平面等级划分为4级:HW(现有红树林近岸一侧的高程分布)、MW(现有红树林林缘的平均高程分布)、LW(海平面上升40cm的情景)...The present study aimed to explore the responding mechanisms of non-native mangrove species, Sonneratia apetala and native mangrove species, Kandelia obovate, to warming and rising sea level. We set up a set of marsh organ to simulate the scenarios of future sea level with 40-cm rising and 80-cm rising in the field tidal conditions in three study sites, Aojiang in Wenzhou, Yunxiao in Fujian and Do...学位:理学硕士院系专业:环境与生态学院_生态学学号:3312014115166

    熟人社会中“吃”的文化阐释

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    本文通过对中国文化最重要的组成部分“吃“的文化意义的阐释和语法结构的探讨,在宏观方面,可以看出“吃“统摄中国社会关系结构,并维持其正常运转;本文通过熟人社会的视角对于“吃“进行科学的分析,使得我们对“吃“的意义有一个清晰的认识,这对于传承中国文化,推动语法问题的研究有着重要意义

    An Analysis of TCSL Teachers’ Role in the Network Environment:Based on the Study of Ten Domestic and Overseas Chinese Teaching Websites

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    随着网络技术广泛应用于对外汉语教学,千百年来,置身语言现场一对一或者一对多的交流模式被网络技术所打破,以媒体形式出现的网络,横亘在教师和学生之间,一方面打破了原有时间和空间的阈限,使以往的课堂教学功能得到最大限度的延伸;另一方面,网络上教学资源的多样性、参与者身份的不确定性以及反馈的滞后性等等因素,都影响着教师角色定位,使之处于变动不居的状态。 关于教师角色的争论也众说纷纭,有人认为在网络环境下,教师的角色大大弱化,网络甚至可以代替教师而存在;也有人认为在新媒体的环境下,教师的角色不是弱化而是加强了,新的媒体迫使教师在行使原有职能的同时,又承担起新的职能。那么,在网络环境下,教师的角色究竟发...With the Internet technique’s wide application to Chinese teaching as a second language, the mode of one-to-one or one-to-many communicating on the spot for thousands of years has been changed by the Internet. As a new media between teachers and students, the internet breaks the limitation of time and space. Its features of abundant teaching resources, the uncertainty participant’s ID and the feed...学位:文学硕士院系专业:海外教育学院_语言学及应用语言学学号:2652010115127

    The Grammatical Analysis of "to Eat" in Chinese Teaching as a Foreign Language

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    提要本文通过对中国文化最重要的组成部分“吃“的文化意义的阐释和语法结构的探讨,在宏观方面,可以看出“吃“统摄中国社会关系结构。Through the interpretation and grammatical analysis of the cultural connotation of "to eat" in Chinese,this paper proposes that "to eat" dominates China's social relationship

    Study on Sanming mobile communications company marketing channel systemplanning and design

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    得渠道者得天下,三明移动需要明确自身的竞争定位,设计合理的营销渠道体系,才能在当地市场持续占据掌控地位。面对竞争环境的变化,三明移动的公司经营战略进行了大幅度的调整,原有的渠道发展策略已不能适应公司战略的要求;另一方面,渠道自身的发展中也暴露出渠道结构不良、运营管理粗放、渠道控制薄弱等问题。这些因素都为制定新的渠道发展策略带来了契机,三明移动渠道转型与重新设计规划已迫在眉睫。本文运用市场营销学和管理学知识,通过对三明移动经营现状进行分析,对其主要竞争对手进行分析,结合三明移动的渠道发展实际和业务需要,论述三明移动的渠道策略,确定渠道核心竞争能力和竞争关键因素;针对电信行业渠道覆盖的特点和业务特...Bidders have to channel the world, the need for clear Sanming Mobile Communications Company(SMCC) their competitive positioning, well-designed marketing channel system in order to control the local market continues to occupy the position. The face of the competitive environment changes, SMCC moving company strategy has been a significant adjustment, the original channel development strategy can no...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:X200515508

    Seedling Growth and the Environmental Factors of the Non-native Mangrove Species, Sonneratia caseolaris, in Shenzhen Bay

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    选取深圳湾红树林的林缘、林窗及郁闭海桑Sonneratia caseolaris林和秋茄Kandelia obovata林等4种环境下自然生长的海桑幼苗,测其生物量、光合特性等指标。结果表明,林缘海桑幼苗生物量累积最大,叶片生物量所占比重最高,幼苗通过提高叶片面积和叶片数量,增加光合速率、水分利用率和光合氮利用率而加速生长。综合分析4种环境的环境因子发现,光照强度是决定幼苗速生并占领生态位的关键生态因子。该结果为研究深圳湾外来种海桑的危害及其防控和管理措施提供参考。This study aimed to discover the growth, photosynthetic traits of Sonneratia caseolaris seedlings to different environment in natural mangroves, which were four kinds of plots under dense canopy of Kandelia obovata forests and S. caseolaris forests, forest gaps, and mudflats. The results showed that the seedlings growing in mudflats had the largest total biomass and leaf biomass partitioning, attributing to their high photosynthetic rates, water use efficiency and photosynthetic nitrogen use efficiency. Light intensity was the key factor among the all environmental factors that contributing to the fast growing of S. caseolaris seedlings, which led to its competition for new habitats. The results provided a reference for the management of non-native species, and the control of its invasive potential in Shenzhen Bay.国家自然科学基金(31270581

    大数据视野下西亚北非与中国经贸合作人才需求与培养模式分析

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    本文以大数据为研究视角,以国家提出的"一带一路"倡议为契机,通过系统搜集整理中国与西亚北非地区的贸易投资数据,在对权威数据广泛挖掘和分析的基础上,以西亚北非地区实际情况为依托,以该地区复杂的政治格局、民族宗教等问题为考量,对其影响人才需求的各因子进行综合分析,在数据和事实的基础上对这一地区人才需求及行业分布进行可视化的呈现,并以此为基础提炼出多国家、多校园、多证书的人才培养模式,为"一带一路"倡议下西亚北非国家的人才培养提供切实可行的建议

    Design and Analysis of Vibration Energy Collector Based on MEMS

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    微能量采集器中电容式采集器易与IC工艺集成,目前已知的传统电容式微能量采集器都需要外加电压,这在很大程度上限制电容式微能量采集器的实际使用。针对该问题,基于微机电系统工艺,提出功函数原理电容式微能量采集器,给出采用两种不同金属作为电容极板电极的采集器原理模型设计,并建立相应系统数学模型,计算大致悬臂梁长度的设置与范围,使用有限元模拟软件AnSyS进行进一步分析与优化设计。在此理论基础上设计出的新型振动能量采集器,可克服传统电容式微能量采集器需要外界提供电源这一缺点。The traditional electrostatic converters need separated voltage source which is very difficult in the practice.A new vibration-powered electrostatic converter with the principle of work functions is presented.The design of the converter is based on MEMS technology,and adopts two kinds of different metal as the electrode plates of the capacitor.The math model is established to determine the parameters of cantilever beam.And with the aid of the finite element software,this model is tested and the dimension is modified to ensure that the electrostatic converter can work optimally.This new method gets rid of the dependence on additional voltage source.The process flow is developed and the prototype collector is successfully produced.福建省科技重大专项/专题(2006HZ0002-4);福建省创新团队和福建省自然科学基金(E0610032)资助项

    Stitching Measurement Technique for Large-aperture Aspheric Surface during Grinding Process

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    为实现对磨削加工阶段大口径非球面光学元件的精密测量,提出一种基于坐标测量的多段拼接综合优化数据处理模型。基于多体系统理论、最小二乘原理建立两段面形轮廓拼接数学模型;提出基于曲率原理和非球面方程最小二乘拟合的冗余数据剔除数学模型;建立多段拼接的综合优化处理模型;利用TAylOr HObSOn轮廓仪对口径为176 MM的非轴对称非球面光学元件的3条母线进行分段测量试验并通过文中提出的数学模型进行数据拼接处理,试验结果表明,拼接测量结果与单次测量结果相比,误差最大值的平均值为0.25μM,最小值的平均值为–0.22μM,比该光学元件的面形峰-谷值2.77μM高出一个数量级,达到检测要求。试验结果证明所提多段拼接综合优化数据处理模型的正确性及有效性,该模型可以进行工程应用。In order to test large-aperture aspheric surface optice element accurately during grinding process, a comprehensive optimization data processing model of stitching measurement is proposed based on coordinate measuring.Firstly, the stitching model for two segments of surface shape contour is built based on multi-body system theory and least square principle; secondly, the rejecting redundant data model is built based on curvature principle and least square fitting of aspheric equation; then the comprehensive optimization processing model for multiple segments stitching is built; three generatrices of a non-axisymmetry aspherical optical element whose aperture is 176 mm is stitching measured by Taylor Hobson profilometer and the data is processed by the model mentioned in the text.The results show that the maximum average error of the stitching measurement is 0.25 μm, and the minimum average error of the stitching measurement is –0.22 μm which is compared with the single measurement.The error is an order of magnitude higher than the surface shape peak–valley value 2.77 μm of the optic element, and matches the measurement requirements.The experimental results prove the correctness and effectiveness of the comprehensive optimization data processing model of stitching measurement, and the model can be applied in engineering.国家自然科学基金资助项目(51075343;51275433
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