集值映象对与单值映象的公共不动点定理     

左秀会 《天水师范学院学报》2007,27(2):16-17

在单值映象与集值映象相容或次相容的条件下,给出了完备凸度量空间中集值映象对于单值映象存在公共不动点的一个充分条件,改进和推广了文[1-4]中的已知结果。  相似文献   

企业孵化网络研究脉络与未来展望——基于SSCI数据库近20年文献的科学计量     

张宝建  张宇  孙国强  薛婷 《科技管理研究》2015,(22)

运用科学计量方法对国外企业孵化网络的研究成果进行分析,探索出"核心-衍生"动态拓展模型,其中核心领域包含"专业化能力"以及"联盟孵化"两个视角。衍生领域包含"产业升级"和"知识管理"两个视角。  相似文献   

信息共享空间研究的知识图谱分析     

张爱菊 《情报探索》2015,(1):33-37

以CSSCI数据库收录的以信息共享空间为主题的论文为基础数据,通过Citespace3.8R1软件对相关引文数据和主题词数据进行处理,绘制出信息共享空间领域的知识图谱,并对其进行分析,得出我国信息共享空间领域的重要学术文献及学术代表人物、主要研究热点及研究前沿等。  相似文献   

Correlation between maximum in-shoe plantar pressures and clubhead speed in amateur golfers     

Todd Colin Pataky 《Journal of sports sciences》2015,33(2):192-197

Disagreements exist in the literature regarding the manner in which weight should be dynamically shared during the golf swing, both within-feet and between the back- and target-foot, to generate maximal clubhead speed. The purpose of this study was to determine whether preferential foot-loading locations underlie weight sharing by examining the correlation between clubhead speed and maximum plantar pressure (PP) distributions. Thirty-two amateur golfers with handicap indexes ranging from 2.7 to 25 performed 10 driver swings on artificial turf following a warm-up. PP distributions were recorded at 100 Hz, and clubhead speed was recorded using a ball-tracking Doppler radar system. Maximum PPs were extracted from a 2-s window approximately centred on ball contact and were regressed against clubhead speed. Significance was assessed over the entire foot surface using statistical parametric mapping (SPM), a spatially continuous technique. SPM revealed, at relatively high anatomical resolution, significant positive correlations between clubhead speed and PPs in the lateral target-foot (P < 0.05). This suggests that not only weight transfer but also weight-transfer location may be an important determinant of clubhead speed in amateur golfers.  相似文献   

测绘数据处理教学仿真系统的研究与设计     

祝婕 《长江工程职业技术学院学报》2015,(1):5-7

针对国内工程测量数据处理仿真系统的空白,以长江工程职业技术学院工程测量专业为例,阐述了测绘数据处理教学仿真系统的重要性和建设思路,介绍了该系统的设计内容及总体结构,总结了测绘数据教学仿真系统的教学效果。  相似文献   

基于测绘工程专业认证标准的课程体系构建     

杨强  何立恒  郑加柱  史玉峰 《中国现代教育装备》2015,(1):77-80

以测绘工程专业认证标准为指导,遵循教育部关于测绘科学与技术专业的培养要求和学校修订培养方案的原则意见,制定了本校测绘工程专业的培养目标、要求及计划。从通识教育、专业基础、专业特色和实践教学四个方面构建了基于测绘工程专业认证标准的课程体系,并从数学与自然科学类课程、工程基础类课程、专业类课程、人文社会科学类课程和实践环节对测绘工程专业课程体系进行解析。结果表明,基于测绘工程专业认证标准的课程体系既符合工程教育认证标准,又体现信息化测绘对人才培养的要求,还兼顾注册测绘师考试大纲对测绘工程专业教学的指引。  相似文献   

Using Six Sigma and Lean in the Library     

Elizabeth Nelson 《College & Undergraduate Libraries》2015,22(3-4):312-324

Businesses have long relied on a variety of strategies to improve quality, efficiency, and service. Some ideas that have persisted over time are Six Sigma and Lean. While Six Sigma, originally intended for manufacturing, focuses on quality and Lean mainly addresses waste, many of the tools and principles involved can also apply to libraries. This article will review the literature on Lean and Six Sigma as they are used in business and then as they have been used in libraries. The resulting discussion will cover how the principles can be applied to better connect with stakeholders by mapping processes and discovering what is value added (VA) versus nonvalue added (NVA), anticipating failure modes using the failure mode and effects analysis (FMEA) framework, and implementing control plans to maintain quality processes and service.  相似文献   

基于“行走”的“学习”概念的隐喻构建     

胡小异 《鸡西大学学报》2011,(12):122-123,127

隐喻研究和对学习的研究一直是热门的研究课题。概念隐喻理论为研究人类的认知带来了新的视角,“学习”这一抽象概念的构建也可以莱考夫和约翰逊的概念隐喻理论来研究,在讨论“学习”和“行走”两域之间的映射后,进一步从汉语语料验证概念隐喻理论,并从一定意义上指导学习行为。  相似文献   

A recessive gene controlling male sterility sensitive to short daylength/low temperature in wheat (Triticum aestivum L.)     

Chen XD  Sun DF  Rong DF  Peng JH  Li CD 《Journal of Zhejiang University. Science. B》2011,12(11):943-950

Utilization of a two-line breeding system via photoperiod-thermo sensitive male sterility has a great potential for hybrid production in wheat (Triticum aestivum L.). 337S is a novel wheat male sterile line sensitive to both short daylength/low temperature and long daylength/high temperature. Five F₂ populations derived from the crosses between 337S and five common wheat varieties were developed for genetic analysis. All F₁’s were highly fertile while segregation occurred in the F₂ populations with a ratio of 3 fertile:1 sterile under short daylength/low temperature. It is shown that male sterility in 337S was controlled by a single recessive gene, temporarily designated as wptms3. Bulked segregant analysis (BSA) coupled with simple sequence repeat (SSR) markers was applied to map the sterile gene using one mapping population. The wptms3 gene was mapped to chromosome arm 1BS and flanked by Xgwm413 and Xgwm182 at a genetic distance of 3.2 and 23.5 cM, respectively. The accuracy and efficiency of marker-assisted selection were evaluated and proved essential for identifying homozygous recessive male sterile genotypes of the wptms3 gene in F₂ generation.  相似文献   

旅游风景中的身体认知隐喻     

邓萍  王丽  马小骅 《贺州学院学报》2011,27(2):64-67

人是万物的尺度,人体是人类认知外部世界的重要工具。在旅游风景的欣赏过程,当旅游者作为欣赏主体去体验和感悟风景客体时,旅游者会借助对自己身体的了解来欣赏和领悟风景的美。以始源域和目的域之间的相似性为理据,始源域身体场的特征映射到目的域山水风景中,形成山水风景是身体这一隐喻。通过身体隐喻来欣赏和感悟山水风景,使人更能体验到悦耳悦目、悦心悦意和悦志悦神的感觉。  相似文献