中小企业为大企业协作配套研究——机制体系的设计与构建     

张超 《科技管理研究》2015,(6):150-155

基于陕西21个重点产业集群的调查,结合理论分析,设计一个具有"4-4-12"逻辑框架的协作配套机制体系并进行全面构建。"4-4-12"框架表明,能够有效促进中小企业为大企业协作配套的机制体系应至少包括4个机制12个具体措施。  相似文献   

模糊控制在恒温控制系统中的应用     

权悦  国海 《衡水学院学报》2011,13(1):102-104,107

根据材料拉伸试验对加热炉的控制要求,本文设计了一种PID控制与模糊控制相结合的智能恒温控制系统.系统的核心控制单元采用具有模糊指令的MC9S12DG128单片机,通过在线模糊推理来实时调整PID的控制权重,实现温控系统的分段控制.实践表明,该系统具有较好的控制性能.  相似文献   

稳定表达miR-17-5p的PC12细胞株构建及鉴定     

《实验技术与管理》2015,(12):66-68

目的:构建稳定表达miR-17-5p的PC12细胞株。方法:将质粒PEGFP-N1-vector空载体和PEGFPN1-miR-17-5p表达载体扩增、抽提,利用脂质体转染技术将质粒转染PC12细胞,荧光显微镜观察绿色荧光蛋白GFP表达,Real-time PCR检测转染PC12细胞miR-17-5p的表达。结果:荧光显微镜观察到空载组和miR-17-5p组细胞都有绿色荧光蛋白高表达,Real-time PCR检测稳定转染miR 17-5p后PC12细胞内miR-17-5p的表达较空载组明显升高(P0.01)。结论:miR-17-5p在PC12细胞稳定表达,为进一步研究miR-17-5p对神经细胞的调制作用提供有用的细胞模型。  相似文献   

Fostering Social and Emotional Skills for Well-Being and Social Progress     

Koji Miyamoto  Maria C. Huerta  Katarzyna Kubacka 《European Journal of Education》2015,50(2):147-159

Children need a balanced set of cognitive, social and emotional capabilities to adapt to today's demanding, changing and unpredictable world. OECD countries and partner economies recognise the importance on the holistic development of individuals. However, there are big gaps between stakeholders' knowledge, expectations and practices on how to foster such skills. This paper presents evidence on the importance of social and emotional skills; on how policy makers and schools are currently enhancing and monitoring such skills; and, on the existing gaps between knowledge, expectations and practices to mobilise these skills. The paper concludes by pointing ways in which education stakeholders can do more to better develop and mobilise the skills that drive individual's well-being and social progress. The paper draws on findings and frameworks that are being published in a full OECD report entitled ‘Skills for Social Progress: the Power of Social and Emotional Skills’ in the first half of 2015.  相似文献   

第十二届全运会女子手球决赛各队攻防能力比较研究     

宋永旺 《湖北体育科技》2014,(8):722-725

目的:对第十二届全运会女子手球决赛前八名球队的攻防水平进行量化评价,比较分析广东队与全运前四名队伍之间的差距。方法:运用综合秩序法,配对T检验法。结果:各参赛队之间有很大差距。安徽队攻防能力属A级水平,江苏队攻防能力属B级水平,解放军队、上海队、辽宁队、广东队、山东队属C级水平;北京队属D级水平。广东队与全运前4名进攻指标相比,场均得分、场均得分成功率、远射成功率、近射进球数、近射射门次数、突破成功率、助攻次数明显低于安徽队(p<0.05),快攻成功率、7M成功率明显高于解放军队(p<0.05),远射成功率、突破成功率明显低于上海队(p<0.05),突破成功率明显低于江苏队(p<0.05)。广东队与全运前四名防守指标相比,失分明显高于江苏队(p<0.05),守门员封挡率明显低于安徽队(p<0.05)。结论:要成为强队,必须要攻防兼备,提高各位置得分能力,减少失误,提高守门员封挡率。  相似文献   

从第12届全运会看竞技太极拳项目的发展     

程馨  ;董逢威  ;李芳芳 《体育科技文献通报》2014,(10):35-36

竞技太极拳经过多年磨练,现在的发展状况是否合理化、规范化是本文研究重点。通过文献资料法、实地调查法等对运动员训练、竞赛期间比赛成绩、难度动作完成质量及编排几个方面进行分析讨论。研究发现:运动员对难度动作的把握水平整体提升,比赛中难度动作缺失一定区分度,对竞技太极拳的发展不利。应在高难度上加大创新力度。竞技太极拳的编排逐渐趋于合理化。  相似文献   

第12届欧洲足球锦标赛决赛阶段各队进球统计与分析   总被引：13，自引：0，他引：13  

郭书胜  李书玲  刘涛 《中国体育科技》2005,41(3):86-88

通过对第12届欧洲足球锦标赛决赛阶段31场比赛的77个进球情况进行统计分析,结果显示,下半场的进球数高于上半场,比赛的开始时段是进球的低谷,75～90min时段是进球的高峰;进球的主要射门区域是在罚球区内;进球射门方式以脚射为主;中路进攻和边路进攻相结合才是进球的有效手段;各位置进球最多的是前锋运动员。  相似文献   

Adverse family experiences and flourishing amongst children ages 6–17 years: 2011/12 National Survey of Children’s Health     

《Child abuse & neglect》2017

Adverse Childhood Experiences (ACEs) are prevalent in the population and linked to various negative long-term health and social consequences. However, due to the retrospective nature of most studies on the topic, little is currently known regarding ACEs' immediate health impact. This study aims to provide insight into this area by examining the association between a new measurement, Adverse Family Experiences (AFEs), and flourishing amongst children ages 6–17 years in the United States. Data from the 2011/12 National Survey of Children's Health were analyzed. Adjusted prevalence ratios assessed flourishing by the number of AFEs (0 events versus 1, 2, 3/3+) controlling for individual/household characteristics. A sub-analysis examined characteristics of flourishing children ages 12–17 years with 3/3+ AFEs. The results showed children with 1 AFE (APR = 0.87; 95% CI = 0.83-0.91), 2 AFEs (0.74; 0.69–0.79), and 3/3+ AFEs (0.68; 0.62–0.72) were less likely to flourish compared to those without any AFEs. Sub-analysis of children ages 12–17 years with 3/3+ AFEs revealed a higher proportion of flourishing children volunteering, participating in extracurricular activities, and working for pay compared to those who did not flourish. Findings show significant differences in flourishing by number of AFEs and suggest that social connectedness may play a role in determining flourishing amongst children with 3/3+ AFEs. Furthermore, the results highlight the potential importance of identifying children with high AFE counts and helping them build resilience outside of the home.  相似文献   

Literature review: The role of the teacher in inquiry-based education     

《Educational Research Review》2017

Inquiry-based education receives much attention in educational practice and theory, since it provides pupils and teachers with opportunities to actively engage in collaboratively answering questions. However, not only do many teachers find this approach demanding, it also remains unclear what they should do to foster this type of education in their classrooms. Our research question was: Which teaching strategies are used by K-12 teachers when promoting inquiry-based education in their classrooms and what are the reported outcomes?After searching for empirical studies on this topic, we examined 186 studies investigating different ways in which teachers can promote inquiry-based education. Analyses revealed varying teaching strategies, differing with regard to direction (teacher directed, student directed and mixed) and different perspectives of regulation (meta-cognitive, conceptual, and social regulation). Results show that important teacher strategies in metacognitive regulation are: focussing on thinking skills, developing a culture of inquiry, supporting inquiry discourse, and promoting nature of science; in conceptual regulation: providing information on the research topic and focussing on conceptual understanding; and in social regulation: bridging the gap between high and low achievers, organizing student learning in groups and focussing on collaboration processes.  相似文献   

Cr12MoV模具钢激光涂层的耐磨性能分析     

陈童  陈用今  马海舟 《中国科技信息》2007,(13):252-253

分析Cr12MoV模具钢激光涂层的耐磨性能。本文通过摩擦磨损实验测出经过激光熔覆处理后的Cr12MoV模具钢耐磨性和没有经过处理的Cr12MoV模具钢耐磨性的数据,再对数据进行计算、观察、分析作出相应的对比曲线图,以此来研究Cr12MoV模具钢图层的耐磨性。  相似文献