The study of the relationship between FDI spillover effect and technological innovation in China

改革开放后，我国提出“以市场换技术”的口号，在东南沿海地区制定相关的优惠政策，吸引外商来华投资，以促进国内经济发展。2015年，我国FDI实际利用总额达到1262.7亿美元，已成为国际上名副其实的招商引资大国。但是，多年来我国是否达到了“以市场换技术”的目的？即我国的FDI是否存在技术溢出效应？诸多学者针对此问题展开了研究，却得到了不一致的结论。随着研究的深入，学者们认为FDI溢出效应与东道国吸收能力有关，而且东道国吸收能力在影响FDI技术溢出时往往存在非线性的门限特征。 本文首先通过协整、向量误差修正模型及格兰杰因果关系检验探究了FDI对我国技术创新是否存在溢出效应，结果表明FDI的溢出效...After the reform and opening up, China put forward the slogan of "market for technology",and formulate relevant preferential policies to attract foreign investment to promote the development of domestic economy. In 2015, China's actual use of FDI has reached 126 billion 270 million U.S. dollars, has become a veritable international investment big country. However, has China reached the "market for...学位：经济学硕士院系专业：经济学院_应用统计硕士学号：1542014115197

The role and mechanism of hnRNP A2/B1 in MCF-7 Cells

核不均一核糖核蛋白A2/B1（hnRNPA2/B1）在很多肿瘤中高表达，但其在 乳腺癌发生发展中的作用还不明确。为了探究其在乳腺癌中的具体作用与机制， 我们通过CRISPR-Cas9基因编辑技术构建敲除hnRNPA2/B1的MCF-7细胞系， 检测其对生物学功能的影响，并研究hnRNPA2/B1对部分基因的可变剪接的作用。 还通过亲和纯化技术结合液质联用质谱（HPLC-MS），构建与分析hnRNPA2/B1 相互作用蛋白网络，利用生物信息学方法对hnRNPB1相互作用蛋白进行KEGG 信号通路及功能分析，进一步来研究hnRNPA2/B1在乳腺癌细胞中的作用与机制。 MTT法检测发...An emerging body of data shows the overexpression of hnRNPA2/B1 in many cancers, but its specific molecular mechanism in tumors is still poorly understand. In order to explore the mechanism of hnRNPA2/B1 and find valid therapeutic target in breast cancer. We used CRISPR-Cas9 to construct the stable MCF-7 cells in which hnRNPA2/B1 were konck-out, and explored the change of proliferation, migrat...学位：理学硕士院系专业：医学院_微生物学学号：2452013115343

Labor Flow Costs, Urban Economic Agglomeration and Urban-Rural Income Gap：Based on the Revised C-P Model

本文主要研究任务有两项：一是在经典的C-P模型框架下，加入劳动力流动成本的设定，探究经济均衡所发生的变化，以及劳动力流动成本对经济集聚产生的影响；二是聚焦城乡收入差距，探究城市经济集聚与城乡收入差距的内在关联。本文结合理论分析与经验分析以完成研究任务。 首先，基于8条假设，借助一般均衡分析框架，本文推导出一个即时均衡的非线性方程组，并利用Mathematica9.0进行数值模拟，得到三项命题：命题I指出，在标准的C-P模型中引入劳动力流动成本后，经济集聚的可能性及程度将减小，而且产生非集聚且非对称的均衡现象；命题II指出，当运输成本随时间逐渐减少时，一个地区的经济集聚程度提升将导致两地间收入...This paper mainly makes two studies. The first is to revise classic C-P model by introducing labor flow costs, and explore what will happen to economic equilibrium and how labor flow costs affect economic agglomeration. The second, concerning urban-rural income gap, is to investigate inherent relations between agglomeration and income gap. To finish the studies, the paper comprehensively uses a ma...学位：经济学硕士院系专业：经济学院_西方经济学学号：1532014115213

ラット大脳皮質深部細動脈におけるノルエピネフィリン,セロトニンに対する収縮能の検討

Tohoku University論

Surface Roughness in Electrical Discharge Machining

The single discharged crater shape in the R-C circuit was studied with regard to the influence of condenser capacity. From obtained result, surface roughness in the repeated discharge machining was got as follows. (1) The relationship between depth of crater and condenser capacity. h_1 ∝ C^ where h_1 : depth of cater (μ) c : condenser capacity (μF) (2) Surface roughness in the discharge machining. H_ = 1.9h_1 + h_2 where H_ : maximum surface roughness (ρ) h_2 : height of crater upheavals (μ)放電加工を行なったとき，その仕上面あらさを知ることが必要であるが，加工条件と仕上面あらさの関係について末だ十分解明されていない現状である。それで本論文ではR-C放電回路におけるコンデンサ容量を種々変えた際，単発放電痕について八戸の理論的解析を引用して，そのクレータ深さとコンデンサ容量との関係を推察し，実験結果と比較検討を行なった。また，単発放電によって生ずるクレータ形状を基礎として，連続放電の表面あらさ，すなわち，放電加工面あらさについて考察を行ない一応の結論を得た

中學生通訊解題第三十一期題目

[[issue]]265

A STUDT OF COMBUSTION CHARACTERISTICS FOR BIO-ETHANOL BLENDED FUEL BY USING A SMALL DIESEL ENGINE

In recent years, global warming, acid rain and other environmental problems are becoming more and more serious, and a variety of fuel resources made from fossil fuels are also facing depletion. As a way to solve these problems, biofuels have attracted much attention. The biofuels are fuels based on biological resources produced by plants, which have less pollution to the natural environment.In this study, the experiment has been carried out to determine the influence on combustion characteristics and exhaust emissions for a small diesel engine by using the fuel of bio-ethanol addition. The fuels are used in this study for five types by changing of the ethanol addition volume percentages from 5% to 25% in the blended fuels. The combustion behaviors, such as burning pressures, heat release rate and emissions (CO, HC, NOx, Smoke) are observed.The main conclusions are as follows:(1) The emissions of HC and CO increase by using the fuel of bio-ethanol addition than that of the light oil.(2) It is possible to reduce the NOx and smoke emissions by using ethanol-light oil blended fuels under the low load.(3) The most suitable conditions of ethanol addition exist by using ethanol blended fuels against the load conditions

职业人文教育论——高等职业院校人文教育的特殊性分析

高等职业院校的人文教育是一种“ 职业形态” 或“ 特殊形态” 的人文教育, 可称之 为” 职业人文教育” 。职业人文教育是高等职业院校人文教育的重心。职业人文教育以其完整 性和练合性构成职业教育的灵魂, 促进劳动者的职业能力发展和生产能力的实现。其内容包 括职业价值观、职业道德、职业核心能力的培养以及职业生涯规划的指导 。根据高职人文教育 的特点, 在实施中要强调专业渗透和实践体脸, 注重在专业教学中渗透人丈教育, 建构体现职 业人文特色的校因文化, 提高教师的职业人文教育能力

论大学生创新精神和创新能力的培养

培养具有创新精神、创新能力的高素质专门人才 ,是高等教育的重要任务。为此 ,要处理好业务素质和全面素质的关系、学习和发现的关系 ,进行高校教学模式和人才培养模式的改