基于数据包络法的OFDI对高新技术企业创新效率的影响分析

我国已经成为对外直接投资的大国,高新技术企业的OFDI行为能否提升企业创新效率是一个重要的命题。基于数据包络法构建回归模型,以广东高新技术企业微观数据为样本进行了检验,结果表明,高新技术企业的OFDI促进了创新资源的投入和创新活动的实施,然而创新产出无法提升,创新效率降低。其原因在于许多OFDI重新配置创新资源,注重模仿创新,忽视了自主创新。为此,提出建议,在促进企业对外直接投资获取技术溢出效应的同时,需要增强企业自主创新能力,真正提升创新效率。     

新疆新增一家国家高新技术产业化基地

日前，乌鲁木齐高新技术产业开发区正式获批建设国家光伏发电装备高新技术产业化基地，这是继乌鲁木齐国家有色金属新材料高新技术产业化基地和乌鲁木齐国家风电装备高新技术产业化基地之后，新疆又一在建的国家高新技术产业化基地。国家光伏发电装备高新技术产业化基地将以企业为主体，通过原始创新、集成创新和引进消化吸收再创新，推进技术进步，在关键技术和产品研发上实现集群突破，形成以乌鲁木齐国家高新技术产业开发区为中心，相关企业、科研院所合作为基础的光伏发电产业群。     

迅猛发展的上海高新技术企业

“九·五”时期,上海市委、市府加强对三大高新技术产业和高新技术改造、提升传统产业的政策支持力度,上海初步形成以电子信息、生物医药、新材料为重点的高新技术产业群,加快上海高新技术产业开发区的建设,促进高新技术产业的发展是当前乃至以后相当长时间内的一项重要任务。 一、经认定高新技术企业基本概况 2000年度共受理上海市高新技术企业书面申请1307家,经过专家讨论,淘汰了178家不符合高新技术企业标准条件的     

基于空间杜宾模型的京津冀高新技术产业空间溢出效应

高新技术产业的空间溢出效应对于大城市产业结构调整和空间布局优化有重要的现实意义.本文利用2005、2009和2013年京津冀地区规模以上工业企业微观数据,研究了区县尺度上京津冀高新技术产业时空演变特征,基于空间杜宾模型分解高新技术产业空间溢出效应并分析其作用机制.研究结果表明:(1)京津冀高新技术产业的空间分布呈现由以...     

企业创新网络的创新原理研究

在创新网络内,企业创新活动受企业自主研发的资源、对外来知识的吸收能力、公共知识、知识溢出、地理距离、企业间的知识存量差距等众多因素的影响,综合考虑各种因素构建企业创新原理模型,并结合调查数据进行实证分析,阐释创新原理。     

论创新方式与高新技术产业孕育

 技术创新是高新技术产生的基础 ,高新技术及其产业是技术创新及其产业化的一种特殊的高级形式。然而到底哪类创新更能导致高新技术的产生并且有可能形成以这种高新技术为核心的产业及产业群 ,从而使产业结构发生变动呢？从技术的变化性来分析 ,技术创新有这样几类 :突破性创新、渐进性创新、根本性创新和转移式创新 ,而突破性技术创新和根本性技术创新才是最有可能导致高新技术产生的创新方式（见图１）。我们可以依据创新内涵来分析这两种类型的创新。图１高新技术及产业孕育示意图突破性创新是指可以使相应的技术领域在短时间内发生质的突破的创新活动。     

我国医药制造业知识溢出的空间计量分析

运用知识生产函数和空间分析中的空间滞后模型、空间误差模型,对我国省域内产研地理接近所引起的内隐知识的专业化溢出、多样化溢出及Porter溢出和省域间技术溢出在区域创新中的作用进行了计量分析。结果,三种溢出作用随时间点的不同呈有规律的变化。总体而言,专业化和多样化溢出对区域创新存在正面影响,Porter溢出对区域创新存在负面影响：知识的省域间溢出对区域创新绩效的影响是通过空间滞后模型表现出来的,而且这种溢出仅发生在相邻省区之间,二阶滞后的各域间知识溢出不明显。     

举科技火炬亮创新之路：看中山火炬高新技术产业开发区及其发展

中山火炬高新技术产业开发区成立于1993年。经过多年的发展,中山高新区无论是在高新技术企业总数上还是在产业结构、高新技术产品产值等各方面,都堪称我省较为成功的范例。到1999年底,该区共认定高新技术企业44家,六大高新技术产业群的产值占全区工业总产值的81.08％。其中,     

全国省市高新技术企业培育政策的比较及启示

正高新技术企业是高新技术产业发展主要载体,也是区域创新驱动发展、产业科技创新主导力量。本文在结合高企竞争力模型的基础上,综合分析目前对高企发展及培育的政策措施,将高企培育的内、外部驱动因素作为影响要素,将高企培育政策分为几大类:科技创新     

省际R&D溢出如何促进本地产业结构升级?——基于2阶段创新价值链的中介分析

该文选取以创新为主导的高新技术产业为研究对象,将其创新过程划分为基础研发和技术转化2个子阶段,分别建立基于2阶段创新水平的中介作用结构方程模型,探究各省份获得的R&D溢出对产业结构升级的作用路径.结果表明:R&D溢出对产业结构升级有显著的正向影响,且在此过程中,基础研发水平发挥部分中介效应,而技术转化水平发挥遮掩效应.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with