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Search Results: 1 - 10 of 258506 matches for " 李阳 "
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外商直接投资与新型城镇化发展的互动研究—基于中国省级面板数据的分析
Research on the Interactive Relationship between New Urbanization Development and Foreign Direct Investment—An Empirical Analysis Based on Chinese Provincial Data
 [PDF]

臧新,
Business and Globalization (BGlo) , 2016, DOI: 10.12677/BGlo.2016.42004
Abstract:
在经济全球化和国家城镇化战略的推动下,外商直接投资与地区新型城镇化发展之间的关系日益紧密。本文利用熵值法从人口、经济、社会和环境四个方面测算了我国2000年到2010年30个省(市、区)的新型城镇化水平,采用面板格兰杰因果关系检验等方法对我国省(市、区)级地区的FDI与新型城镇化发展的互动状况进行了实证研究。研究表明,总体上我国各地区的FDI与新型城镇化水平间存在显著的互动关系;东中西部两者的互动状态存在差异。
Under the globalization background, the relationship between China’s development of new urba-nization and FDI becomes more and more closely. The paper uses the entropy method to calculate new urbanization index through four dimensions including people, economic, society and envi-ronment, and further studies the relationship between FDI and regional urbanization development by Grainger Granger causality test. The research shows that there is a significant interaction between the FDI and the new urbanization level, but the interaction of the eastern, central and western is different.
电涡流式传感器液面测量控制系统
Control System of Liquid Level Measurement Based on Eddy Current Sensor
 [PDF]

, 迟宗涛
Computer Science and Application (CSA) , 2016, DOI: 10.12677/CSA.2016.68056
Abstract: 随着微电子技术的不断发展,智能化程度的日益加深,以及国家相关政策支持力度的不断加大,其在测量领域发挥的作用也日见显著。在工业生产与日常生活中,经常需要进行液面高度测量,采用微电子技术作为控制系统具有小型化、低功耗、可靠性高的优点。文中介绍了一种电涡流式位移传感器,是一以单片机为核心的液面高度测量电子控制系统。本控制系统以单片机为核心,控制液面高度数据的采集、管理以及远程通讯,具有体积小、维护容易、可靠性高、实时测量并显示液面高度值、记录历史数据、远程传输等优点。本文综合应用了传感器、微控制器等领域的知识,详细介绍了液面高度测量电子控制系统的整体结构及控制方法。本文的研究实现了液面测量电子控制系统的小型化,智能化,并基于接触式测量方法进一步确保了测量的精准度,从而降低了测量装置的复杂性,节约了材料,具有重要的现实意义和显著的社会效益。
With the development of microelectronics technology, increasingly intelligent and relevant national policies and support growing, its role in the measurement region has become more significant. In industrial production and daily life, it is often necessary for liquid level measurement, of which microelectronic technology is adopted as the control system, having advantages of miniaturization, low power consumption, and high reliability. Eddy current type displacement sensor is introduced in this paper, based on the single chip microcomputer electronic control system of liquid height measurement. This system uses single-chip microcomputer as the core control system, and controls liquid level data collection, management, and telecommunications. Small size, easy maintenance, high reliability, real time measurement and displaying the liquid height value, recording historical data remote transmission and so on are advantages of this system. This paper comprehensively applies knowledge in the areas of sensors, micro-controller, and introduces in detail the overall structure and control methods of electronic control system of liquid height measurement. This study implements the miniaturization and intelligentization of electronic control system of liquid level measurement, and based on contact measuring method ensures the measurement accuracy, which can reduce the complexity of measuring devices, save material, having important practical significance and significant social benefits.
铋系高T_c相晶格反常行为的穆斯堡尔谱研究

科学通报 , 1992,
Abstract: 一、引言 自从A15金属型超导体被发现后,人们一直在探索可能导致高温超导转变温度的超导机制。高T_c氧化物超导体Y-Ba-Cu-O、Bi-Sr-Ca-Cu-O和T1-Ba-Ca-Cu-O的相继问世,使人们对这一中心课题更加关注。为了系统地研究探讨超导机制,人们首先注意到传统超导
从断层岩的角度认识泥岩涂抹及其定量表征――以济阳坳陷东辛油田营32断层为例

地质学报 , 2009,
Abstract: 从断层岩入手,分析了断层岩与断层封闭性的相关性,进一步建立起断层岩纵向类型变化与断层封闭性的关系。根据断层岩的类型及含油气沉积盆地的埋深,把泥岩涂抹类型分为未成岩塑性剪切型泥岩涂抹及成岩脆性研磨型泥岩涂抹。根据岩石纵向流变性,把断层封闭性分为浅层高渗封闭开启段、中层碎裂封闭开启段及下层韧性变形封闭段,并加以对比与剖析。探讨了泥岩涂抹定量表征问题,指出不同泥岩涂抹类型应采取的计算方法及目前研究中存在的问题。对东辛油田营32断层的泥岩涂抹研究表明,该断层南段几个重要含油层位的封闭性不好,导致油气穿越断层,发生了油气再运移,而北段所有含油层位都是封闭的。这说明了同一条断层封闭的差异性及动态性。
一类不确定离散多时滞大系统稳定控制和保成本分析

内蒙古大学学报(自然科学版) , 2015, DOI: 10.13484/j.nmgdxxbzk.20150213
Abstract: 在不确定范数有界的情况下,给出了一类大规模不确定离散多时滞系统的鲁棒稳定性新的充分条件,进一步给出相应的保成本控制.采用lyapunov方法,结合线性和双线性矩阵不等式(lmi和bmi)技术,设计出闭环系统的状态反馈鲁棒控制器,给出保成本凸优化算法流程.最后通过仿真案例验证了该方法的正确性和有效性.
主流媒体多语种新闻传播引导力分析——以KBS多语种新闻为例 Analysis of the Guiding Force of the Main-stream Media's Multilingual News Dissemination:in the Case of KBS Multilingual News

- , 2017,
Abstract: 随着新闻传播引导力作用的凸显,各国媒体新闻纷纷以个性化时效性的输出,为受众提供着日趋完善的信息服务。近期韩国主流媒体KBS在国内外制作的大量有引导力的新闻节目,给各领域受众注入了诸多新闻传播导向元素。通过数据和案例,分析KBS多语种新闻传播研究的背景、KBS多语种新闻传播引导力、KBS提高多语种新闻传播引导力的措施等,认为韩媒KBS多语种新闻传播的引导力是影响受众立场的重要因素
关于差错信息的若干问题探讨
,
图书情报工作 , 2014,
Abstract: ?从信息视角探讨差错信息的内涵及其特征、差错信息对组织发展的负面和正面影响。认为对差错信息进行管理可以最大限度地减轻甚至消除差错带来的不良影响,提出通过培育积极的差错管理文化、化解信息失灵、构建差错报告系统3个措施,增强员工提供差错信息的意愿。指出对差错信息及其管理的研究应成为信息管理学科的新领域。
分数阶导数双边空间微分方程的显式差分解法
Finite Difference Methods for Space-Time Fractional Two-Sided Space Partial Differential Equations
 [PDF]

, 宁平, 陈璐
Operations Research and Fuzziology (ORF) , 2012, DOI: 10.12677/orf.2012.21001
Abstract:
分数阶微分方程作为广义的微分方程,被广泛地应用于物理,信息处理,金融等领域。本文给出了数值求解时间空间分数阶导数的双边空间微分方程的一种显式差分格式,并对其稳定性和收敛性进行了理论分析。
Fractional order differential equations are generalizations of classical differential equations. Now, they are widely used in the fields of physics, information; finance and others. In this paper, an explicit finite difference method for space-time fractional two-sided space partial differential equations is established. Be- sides, the stability and convergence order are analyzed.
农村炉灶对室内空气品质的影响研究
The Impact of Rural Cooking Range on Air Quality
 [PDF]

王哲,, 奇峰, 苏州
Advances in Environmental Protection (AEP) , 2014, DOI: 10.12677/AEP.2014.43010
Abstract:

本研究以辽宁省营口市一户农村家庭为研究对象,利用MCH-383SD CO2浓度/温、湿度记忆仪对其夏季室内外空气品质进行连续监测,以二氧化碳评价分指数对炉灶使用前后对人舒适感的影响进行评价,研究农村炉灶对室内空气品质的影响并探讨其改善方法。研究结果表明:农村炉灶的使用降低了室内空气品质,且不同房间受到的影响各异;通过对示踪气体CO2浓度与换气次数的线性拟合,得出其具有良好的线性相关性,基于本研究提出改善农村住宅室内空气品质的措施
This research targets a rural family in Yingkou City, Liaoning Province, utilizing MCH-383SD carbon dioxide concentration/temperature, humidity monitor to constantly monitor its Indoor Air Quality (IAQ) in summer, evaluates the influence of using stove on human comfort using evaluation of sub-indices of CO2, and studies the impact of rural cooking range on air quality and discusses the approaches to improve the air quality. The result indicates that the utility of rural cooking range decreases indoor air quality and the impact on it varies from house to house; meanwhile, a good linear dependence between the concentration of

考虑网络时延的水电站网络化AGC系统模型研究
Study of Networked AGC System Model in Hydropower Station Considering Network Delay
 [PDF]

王波,, 延频
Smart Grid (SG) , 2014, DOI: 10.12677/SG.2014.46032
Abstract:
介绍了网络化AGC系统的结构以及网络时延的特性,讨论了传统水电站AGC系统的模型。通过对网络时延模型及其仿真模块的分析,建立了考虑网络时延的新AGC系统模型。运用MATLAB/Simulink软件进行仿真模拟,结果表明采用网络时延的新模型对网络时延具有较好的控制性能,可以达到较为满意的控制效果。
The structure and the network delay characteristics of networked AGC system are introduced and the models of traditional hydropower station AGC system are discussed in detail. Based on the analysis of network delay model and its simulation module, a new AGC system model considering network delay is proposed. Simulating by using MATLAB/Simulink software shows that the new model can achieve satisfactory control effect, which has a good control of network delay.
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