我国地区R&D效率及其影响因素探究——基于“科研产出—成果转化”视角   总被引：1，自引：1，他引：0  

蔡翔  崔晓兰  熊静  刘同存 《软科学》2013,27(3)

基于"科研产出—成果转化"视角,以2000～2008年的面板数据为基础,运用随机前沿分析方法研究了我国各地区R&D效率及其影响因素。研究结果表明:东部地区科研产出和成果转化效率皆高于中西部地区,中部地区科研产出效率高于西部地区,成果转化效率低于西部地区;科研产出的提高呈明显的资金推动型;政府支持力度和企业R&D投入力度对科研产出效率的提高有促进作用但不显著,外资吸纳能力能显著促进科研产出效率的提高,高新技术产业规模反而抑制科研产出效率的提高;政府支持力度、高新技术产业规模以及企业R&D投入力度对我国科研成果转化效率的提高有显著促进作用,外资吸纳能力抑制成果转化效率但不显著。  相似文献   

Cognitive Style and Learner Strategy Interaction in the Performance of Primary and Related Maze Tasks     

Heather J. Brown  Robert N. Singer  James H. Cauraugh  Georgann Lucariello 《Research quarterly for exercise and sport》2013,84(1):10-14

Abstract

The effect of designated learning strategies and reflective versus impulsive cognitive styles on performance in a maze learning task was investigated. Twenty-four female subjects were randomly assigned to a strategy or control group. The strategies group was provided with three potentially effective strategies (imagery, rhythm, and feedback) as identified by an information processing task analysis procedure. The Matching Familiar Figures test further classified subjects within the two groups according to their preferred styles of responding. Eleven primary task trials were administered with direct view of maze and four related task trials were completed with an indirect view of it. Traversal speed and time in the incorrect pathways were analyzed with a 2 × 2 × 7 (Strategies × Cognitive Styles × Trial Blocks) repeated measures ANOVA. A significant three-way interaction was found for both dependent measures. As hypothesized, during the primary task the control reflective subjects traversed the maze more slowly than the control impulsive subjects. However, the strategies reflective subjects completed the maze with the same speed as strategies impulsives. The incorrect pathways × time interaction revealed that the control reflective subjects spent less time in the incorrect pathways during the related task than the control impulsives. No significant differences were found for strategies reflectives or impulsives. These findings indicate that, for this maze task that emphasized speed, the performance of reflective and impulsive subjects was facilitated by appropriate learning strategies.  相似文献   

区域创新网络结构对区域创新效率的影响研究   总被引：1，自引：0，他引：1  

于明洁  郭鹏  张果 《科学学与科学技术管理》2013,(8)

区域创新效率是影响区域创新能力的关键因素,而区域创新网络结构直接影响了区域创新效率的高低。运用随机前沿分析方法,从网络规模、网络开放、网络结构洞和网络链接四个方面研究区域创新网络结构对区域创新效率的影响。研究结果表明,网络规模、网络开放性、网络结构洞、网络链接对区域创新效率的提高存在不同程度的影响。并根据上述研究结论,提出了有针对性的政策建议。  相似文献   

我国物流业TFP增长率的测算及分解     

丁小平  刘金东 《黑龙江生态工程职业学院学报》2013,(5):61-71

采用1997—2011年我国31个省区物流业面板数据建立随机生产边界模型,利用Kumbhakar等(2000)的方法对我国物流业TFP增长率进行测算和分解,分析表明:技术进步因素是我国物流业TFP增长的主要原因,技术效率改进、规模效率和配置效率因素均存在对技术进步因素的抵减效应;技术效率改进和规模效率因素的作用逐年递减,而配置效率因素的作用逐年上升。进一步对我国物流业TFP增长率的区域差异进行基尼分解,结果表明技术效率和配置效率是造成区域间物流业TFP增长率差异的主要原因,反映出各省区物流业发展存在较强的阶段差异。提升我国物流业长期发展水平,不仅依赖于先进技术和方法引进带来的技术进步因素,还必须注重提高技术效率、规模效率以及配置效率;减少物流业发展的区域差异,则需要提升落后地区的技术效率和配置效率。  相似文献   

非单调压缩随机算子方程组的解及其连续性     

张石生  陈汝栋  王向东 《赣南师范学院学报》1992,(Z1)

本文给出一类具有分段压缩性质的含参量随机算子方程组的解的存在性、唯一性定理,并在此基础上,讨论了其解关于参数的连续依赖性。  相似文献   

计算网格QoS-aware作业调度的建模与性能评价     

单志广  林闯 《东南大学学报》2007,23(3):425-430

为了提高计算网格的服务质量(QoS),研究了包含多层调度器的分级分布式网格体系结构中的QoS-aware作业调度问题,提出了一种将计算网格本地调度器作业选择中所使用的作业优先级与全局调度器的作业分配策略相结合的QoS-aware作业调度综合控制策略.建立了一个具有2层调度器的计算网格的随机高级Petri网(SHLPN)模型,并且进行模型精化设计以降低模型求解的复杂性.使用基于SHLPN的性能分析技术进行系统性能评价.数值结果显示QoS-aware作业调度策略能够为高优先级的作业提供较QoS-unaware作业调度策略更好的QoS保证.  相似文献   

一类脉冲中立型微分方程的非振动性(英文)     

刘演军  申建华 《怀化学院学报》2005,24(2):18-22

讨论带逐段常数变元一阶非线性脉冲中立型微分方程,获得其解非振动性和渐近性制据·  相似文献   

Generalized Sampling Series Approximation of Random Signals from Local Averages     

宋占杰何改云  叶培新杨德运 《天津大学学报(英文版)》2007,13(1):8-11

Signals are often of random character since theycannot bear any information if they are predictable forany timet,they are usually modelled as stationary ran-dom processes. Balakrishnan[1]and Lloyd[2]investiga-ted the Shannon sampling on stationary randomp…  相似文献   

基于Cobb-Douglas函数的银行效率研究     

陈国中  刘志迎 《合肥联合大学学报》2005,15(4):13-15,22

根据Cobb-Douglas生产函数，采用随机前沿分析法（SFA），测算了我国商业银行的1996-2003年效率值，并对其决定因素进行了分析。结果表明，银行效率的提高来源于充足的银行资本金、多元化的产权结构、资产质量、人力资本、市场竞争程度等。  相似文献   

Initial Value Problems for Second Order Impulsive Integro-Differential Equation in Banach Spaces     

陈芳启  张海燕 《天津大学学报(英文版)》2005,11(1):73-78

By an established comparison result and using the upper and lower solutions, one sufficient condition of existence of minimal and maximal solutions to initial value problem for second order impulsive integro-differential equation in Banach spaces is obtained and the related results are essentially improved. At the same time, another sufficient condition of existence of minimal and maximal solutions based on the Kuratowski measure of noncompactness is given.  相似文献