关于生产函数的新思考——理论研究与实证分析   总被引：6，自引：0，他引：6  

徐小飞  龚德恩  吴承业 《预测》2001,20(1):15-19

本文既考虑了本期投入对本期产出的影响，又考虑了过去累积形成的生产成果对本期产出的重要作用，并在此前提下建立一种新型生产函数-动态生产函数。运用动态生产函数与C-D生产函数对中国和中国部分省（区、市）的实证分析表明动态生产函数较符合中国和中国地区经济发展的实际。最后就各要素对产出增长率的贡献份额进行了测算。  相似文献   

我国区域R＆D投入绩效评价研究   总被引：15，自引：0，他引：15  

许晓雯  蔡虹 《研究与发展管理》2004,16(5):11-17

针对R＆D活动绩效评价中大多没有将R＆D投入作为成本看待的做法,引入经济效率概念,指出在R＆D投入绩效评价中应贯彻产出/投入分析的思想。并尝试运用数据包络分析(DEA)方法对我国30个省市的R＆D投入绩效进行测度与评价,着重分析了东、中、西部三大地区R＆D投入绩效的差异。  相似文献   

基于纵稿控制框架的上游企业R＆D研究   总被引：2，自引：0，他引：2  

郑德渊  李湛  伍青生 《科研管理》2001,22(1):45-50

本文在纵向控制框架内研究上游企业R&D。R&D活动降低中间产品转移价格 ,增加最终产品供给数量 ,纵向兼并、全面一体化增加R&D和最终产品供给数量 ,但都比社会福利最大化时小 ;R&D边际成本增加减少R&D和最终产品供给数量。政府应当补贴R&D ,鼓励纵向兼并和全面一体化 ,避免横向兼并  相似文献   

中国白兔红细胞上C3b受体测定研究     

陈思义  张德成 《科技通报》1993,9(5):319-321

通过对32例健康的中国白兔红细胞上C_(3b)受体和免疫复合物的检测,其红细胞上C_(3b)受体的花环率为8.86±1.42;免疫复合物的花环率为6.84±1.03.这一结果与恒河猴等动物相比,皆有一定的特异性,也充分表明中国白兔的红细胞在清除体内危害性极大的免疫复合物上起着重要的作用。  相似文献   

基于角色的虚拟研发团队构建方法及其约束机理研究   总被引：1，自引：0，他引：1  

刘建昌  侯光明  王俊鹏 《科学学与科学技术管理》2005,26(4):123-128

提出了角色依赖图的概念，并在此基础上给出了基于角色的虚拟研发团队构建方法。以此为基础，结合周界理论，分析了影响虚拟研发团队开放度和交换率的主要因素，揭示了虚拟研发团队的内在约束机理。  相似文献   

Can creative destruction be destroyed? Military IR&D and destruction along the value-added chain     

Allen Kaufman  Mark Brumer 《Research Policy》2003,32(9):1537-1554

We elaborate a supply chain innovation matrix that can be applied to both commercial and military supply chains. By shifting the analysis from a focal firm to industry structure, we argue that the market structure of the entire supply chain functions as a major moderating variable in determining both the timing and adoption of innovations, both for commercial and military markets. We extend work on supply chain resource dependency by drawing a distinction between market-structure-induced resource dependency and supplier over-reliance on a customer in a competitive market. This has policy implications for the organization of military industrial research and development (IR&D). Joint service research and development (Jointness) will certainly bring about innovation, but it will be incremental, reinforcing established military hierarchies. Policy makers may need to add this probable consequence when comparing Jointness and inter-service rivalry. The cost savings inherent in Jointness may unwittingly sustain a military force unready for fighting the next war.  相似文献   

跨国公司R&D国际化趋势及其对中国跨国公司的启示   总被引：5，自引：0，他引：5  

熊波  陈柳 《研究与发展管理》2002,14(3):1-5,10

随着世界经济全球化 ,跨国公司的 R &D活动出现了国际化趋势。在此 ,分析了跨国公司R&D国际化的必然性、新趋势 ,并提出如何使中国跨国公司 R&D活动国际化的建议。  相似文献   

Through the Dąbrowski Lens: A Fresh Examination of the Theory of Positive Disintegration     

Amanda Harper  Linley Cornish  Susen Smith  Peter Merrotsy 《Roeper Review》2017,39(1):37-43

D?browski’s theory of positive disintegration is an emotion-centered, nonontogenetic, five-level theory of personality development where the experience of all emotions is essential for the process of growth. In this article, we examine the complexities of the three factors of development, which are essential to the notion of development within the theory of positive disintegration. We elaborate on the relationships between these factors, depict the processes and interactions in a new graphical framework, provide associated explanations, and support these by additional references to D?browski’s original writings.  相似文献   

Why 3D Print? The 21st-Century Skills Students Develop While Engaging in 3D Printing Projects     

Torrey Trust  Robert W. Maloy 《学校用计算机》2017,34(4):253-266

The emergence of 3D printing has raised hopes and concerns about how it can be used effectively as an educational technology in school classrooms. This paper presents the results of a survey asking teachers from multiple grade levels and subject fields about the impact of 3D projects on student learning. Teachers were asked about the kinds of 3D projects they were doing with students and what skills or knowledge students were developing by participating in those projects. Participants reported that their students developed a number of skills while working on 3D printing projects, including 3D modeling, creativity, technology literacy, problem-solving, self-directed learning, critical thinking, and perseverance. Parallels between teacher-identified skills and widely cited lists of 21^st-century skills suggest that 3D projects are a promising approach to preparing students for life and work in a digital age.  相似文献   

解决Mac系统运行缓慢的方法     

《考试周刊》2017,(35)

本文针对MAC系统运行缓慢的问题,提供了切实可行的解决方法,包括通过第三方工具软件,以及对系统进行相关的多种设置。  相似文献