基于专利引用跨越度计量的两国间间接创新合作机会发现     

李睿  青杨媚  范九江 《图书情报工作》2021,64(23):31-39

[目的/意义] 两个国家间的创新合作机会有些是显性直接的，有些是潜在间接的。在此试图构建一种计量和分析专利引用关系的方法，用于发现两国间潜在的间接创新合作机会。[方法/过程] 全球价值链上不同环节专利之间的引用关系中，蕴含着相互衔接、配套的间接合作关系，而不同环节的专利通常具有不同的功能，即IPC存在一定跨越度。因此，设计"专利引用跨越度"指标及算法，用于计量和筛选专利引用网络中"引用跨越度"达到预设阈值的专利引用关系，作为发现间接创新合作机会的基础数据。以新加坡在中国获得授权的发明专利为样本，基于专利引用跨越度计量并配合人工解读和识别，发现中新两国间一系列的间接创新合作机会。[结果/结论] 基于专利引用跨越度计量的两国间间接创新合作机会发现的方法，被实验检验为有效。  相似文献   

Performative technologies and teacher subjectivities: A conceptual framework     

Hans Englund  Jonas Gerdin 《British Educational Research Journal》2019,45(3):502-517

Critical educational literature suggests that an increased reliance upon performative technologies is currently transforming the very foundations from which teacher subjectivities are constructed. Arguably though, the number of studies pointing to this risk or tendency is considerably larger than the ones theorising why this should be the case. Further, in those cases where the relationship between performative technologies and teacher subjectivities is theorised, the psychological mechanisms that the technologies appeal to are seldom brought to the fore. Based on this, the purpose of this article is to theorise the psychological mechanisms that performative technologies appeal to and work through, by means of identifying, systematising and elaborating extant understandings of such mechanisms in the critical educational literature. The results are presented in the form of a conceptual framework (referred to as the CMIS-framework) which suggests that one and the same performative technology may play many different roles, where each such role appeals to and works through a particular psychological mechanism. Importantly, depending on the type of psychological mechanism that is appealed to, the CMIS-framework suggests that this will lead to teachers (un)consciously conducting particular forms of subjectivising work upon themselves, here referred to as compliance, mirroring, identification and self-realisation (CMIS).  相似文献   

Professional knowledge or motivation? Investigating the role of teachers’ expertise on the quality of technology-enhanced lesson plans     

《Learning and Instruction》2020

In an expertise study with 94 mathematics teachers varying in their relative teacher expertise (i.e., student teachers, trainee teachers, in-service teachers), we examined effects of teachers' professional knowledge and motivational beliefs on their ability to integrate technology within a lesson plan scenario. Therefore, we assessed teachers' professional knowledge (i.e., content knowledge, pedagogical content knowledge, technological knowledge), and their motivational beliefs (i.e., self-efficacy, utility-value). Furthermore, teachers were asked to develop a lesson plan for introducing the Pythagorean theorem to secondary students. Lesson plans by advanced teachers (i.e., trainee teachers, in-service teachers) comprised higher levels of instructional quality and technology exploitation than the ones of novice teachers (i.e., pre-service teachers). The effect of expertise was mediated by teachers' perceived utility-value of educational technology, but not by their professional knowledge. These findings suggest that teachers’ motivational beliefs play a crucial role for effectively applying technology in mathematics instruction.  相似文献   

Medieval and renaissance glass technology in Valdelsa (Florence). Part 1: raw materials, sands and non-vitreous finds     

U. Casellato  F. Fenzi  P. Guerriero  S. Sitran  P. A. Vigato  U. Russo  M. Galgani  M. Mendera  A. Manasse 《Journal of Cultural Heritage》2003,4(4):337-353

A significant number of archaeological finds of the 13th–16th century from the Tuscan sites of Germagnana and Gambassi in Valdelsa—FI, was studied by different physico-chemical investigations (SEM–EDS, ICP, Mössbauer spectroscopy, XRD, XRF, TG-DTA) in order to contribute to clarify the production methodology and the pre-industrial glass manufacture technology. The studied samples are mainly non-vitreous finds as production waste, refractory materials, crucibles and raw materials; also vitreous finds as frits, skims, glasses (glass masses, glass working waste and finished products) have been taken into consideration. The obtained petrographic and physico-chemical data strongly suggest that both Gambassi and Germagnana glass manufactures were strictly connected with the sources of vitrifiable materials, situated in Tuscan sand quarries. In particular a comparison between sands from the neighbouring quarries and appropriate finds of the two archaeological sites evidences that the employed vitrifiable materials possibly belong to La Casina La Cava resort. The archaeological classification, based on macroscopic observation and stratigraphic position, was compared and verified with the scientific classification of the examined finds of Germagnana and Gambassi sites based on their composition, morphology and physico-chemical properties.  相似文献   

二次曲线拟合算法的统计性能分析与改进     

杨忠根  姜桂祥  陈红亮 《上海海事大学学报》2003,24(1):46-51

传统的二次曲线拟合使用标准特征值分析算法。通过统计分析技术 ,可知该技术在拟合数字二次曲线时 ,存在估计偏差大、均方误差大的缺点。其产生原因是数据噪声的有色性和自相关函数矩阵的条件数过大 ,因此白化数据噪声和正则化变换是提高曲线拟合的有效措施。这从理论上有力地支持了Hartley提出的正则化算法。通过理论分析和计算机仿真实验 ,表明了降维EVD技术固有地同时具备噪声预白化功能和数据正则化功能 ,因此它能给出均方误差相当小的无偏估计。由于它无须进行预白化变换或正则化变换 ,并把最优化过程的维数从 6降为 2 ,所以它还具有计算快速、实现简单方便的优点。  相似文献   

第14届男子篮球世锦赛中外优秀后卫队员技术运用能力的比较分析   总被引：7，自引：0，他引：7  

丁丽萍  马春林  康少杰 《西安体育学院学报》2003,20(5):68-70

通过临场技术统计、电视录像观察和逻辑分析,以及查阅了相关文献资料,对第14届男子篮球世锦赛中国男篮与外国男篮(前四名)优秀后卫队员技术运用的能力进行比较分析,旨在对比和寻找目前中外优秀后卫队员在技术运用能力上存在的差异。  相似文献   

对体育科技期刊封页设计的分析及探讨     

王瑛 《北京体育大学学报》2003,26(3):326-327

通过对44种2002年出版发行的体育科技期刊的封面设计形式,封面、封底标识,封二、封三刊载内容调查,从中发现我国体育科技期刊封页设计的整体水平有所提高,但一定程度上存在对封面设计不够重视的情况,美术编辑的艺术创作能力有待提高。  相似文献   

未来八年我国体育科技、教育发展的战略构想与政策建议   总被引：4，自引：0，他引：4  

韩丁 《山东体育学院学报》2003,19(1):11-15

当代体育科技、教育体系是科技教育体系的重要组成部分，有相当的体育科学技术学科是科学技术母体学科在体育领域的应用、渗透而形成的，由此构成了体育科学技术体系的重要内容。21世纪现代奥林匹克的进一步发展，将更加需要高新技术的发展和渗透，而在我国举办奥运这一新历史环境下，国家创新体系将延伸成为体育创新体系的重要部分，使体育科学体系出现个体学科突增发展、学科群落拓展优化的趋向；体育教育传播体系将更加开放、普及和优化，使各类高等教育体系出现超前创建体育新专业契合社会化、健康服务需求的态势。  相似文献   

计算机程序设计课程教学模式研究     

裘迅 《苏州市职业大学学报》2003,14(4):58-59

本通过对各种计算机程序设计课程的研究，说明教学中采用不同模式的重要性，并列举了一些生动事例以作参考。  相似文献   

冷光膜系的性能分析与技术改造     

戴国钧 《实验室研究与探索》2004,23(6):34-36

结合生产实际，介绍了冷光膜系的物理性能及特点，详细讨论分析了生产工艺中存在的问题，提出了改进的简便实用方法。采用改进的新方法能够提高冷光膜系制品的质量和工业化生产效率。  相似文献