关于超级计算发展战略方向的思考

超级计算能力是国家科技竞争力乃至综合国力的重要标志,也是经济社会发展、国防和国家安全的重要支撑。特别是在网络化、大数据、云计算和虚拟现实迅猛发展的背景下,超级计算不但是科技发展的利器,正引发科研模式的根本变革,也将成为重要的社会基础设施,并最终深刻地改变我们的生产和生活方式。但目前超级计算正面临应用效率低、能耗高、稳定性差和难以应用等严峻挑战。基于在复杂系统多尺度模拟方面多年的探索和积累,文章提出,按照计算对象、模型、软件与硬件的逻辑和结构一致的原理优化计算机体系结构,缓解和克服商品化通用硬件系统开发中的难点,可能是突破这些瓶颈的一条具有普遍意义的途径。     

L∞-gain analysis for positive singular time-delay systems

This paper is devoted to the characterization of L_∞-gain for positive singular systems with time-varying delays. First, we introduce an augmented system to replace the original system in order to analyze the positivity of singular systems with time-varying delays. By investigating the monotonicity of state trajectory, the L_∞-gain for singular system with constant delays is characterized. Then, by comparing the trajectories of time-varying delay system and constant delay case, we finally propose the L_∞-gain for singular system with time-varying delays. It is shown that the L_∞-gain of positive singular systems is independent of the magnitude of delays.     

高校仪器设备报废处置中存在的问题及改进措施

针对高校仪器设备报废处置中存在未设置专职管理岗、设备账目清理困难、报废处理周期过长、重购置轻管理等问题,结合实际工作,提出了一些解决思路及改进措施,以推动资产报废工作有序、高效进行,加速固定资产的循环流通、利用,为教学科研、人才培养、学科建设提供必要条件.     

Intrinsic Factors for Continued ERP Learning: A Precursor to Interdisciplinary ERP Curriculum Design

Unilateral enterprise resource planning (ERP) curriculum improvements from the instructor's perspective are likely to generate only limited success. Understanding student motivations and beliefs with ERP systems is the missing link to effective ERP education. Relatively little attention in the ERP literature has been given to student learning associated with ERP experience, and almost none to factors influencing current and expected student beliefs and behaviors relative to ERP. The complexity of ERP systems demands that beliefs and behaviors be considered when planning ERP curricula. In the present study, the Theory of Planned Behavior was extended to examine students’ intentions to explore additional aspects of ERP after their class exercises. When considering all students, attitude and subjective norm had positive and significant effects on intentions to continue ERP learning. Subjective norm also affected attitude, and availability of support materials had a positive effect on subjective norm. Distinctive patterns are found for the construct relationships between student groups who valued ERP education (the engaged) and those who placed little or no value on ERP education (the undecided). Results from competing model analyses indicate that support materials influenced the engaged and undecided groups differently. Strategies for ERP curriculum design are provided.     

幼儿园教学活动中教师言语反馈行为分析

基于对幼儿园8个集体教学活动的分析,发现教师的言语反馈行为可分为五类,分别是评判回答的准确性,重复回答的内容,引导儿童调整思考问题的角度,推进儿童的表述,鼓励原创性回答。研究者认为,在幼儿园教学活动中,教师的言语反馈应提供具体化信息,鼓励儿童自己作出判断,表达对儿童思考的欣赏,从而激励儿童深入思考问题。     

班主任管理工作存在的问题与对策研究

在当前新形势下,初中阶段学生的身心发展呈现出新的特点,班主任需要与时俱进,不断创新班级管理工作的方法.要想提高班级管理工作的质量和效率,班主任就要做到以下几点:善于发现学生的闪光点,真诚关爱每个学生,加强与学生的沟通交流,注重培养学生的集体荣誉感.     

论编辑对科技期刊论文的质量控制

针对编辑在科技期刊论文质量把关中所起作用的特点,探讨编辑人员在编辑工作中保证并提高论文质量的方法,提出了如下建议:1)借助新科技手段在初审中突破创新性把关问题;2)建立互动的审稿机制;3)结合校对进行全面复审;4)加强论文质量信息反馈.     

台港学术期刊的编审制度与奖励导向

一、台港学术期刊的编审制度 我国台湾地区、香港地区的高等院校及科研单位出版的学术期刊有着十分严谨的编审制度和精确的奖励导向,在物欲横流的商业社会里,保持着学术清流的良知.其中的优秀学术期刊更在中国学术界乃至国际学术评价体系中享有良好的学术声誉.     

国图收藏的美国政府出版物及其开发利用研究

介绍了美国政府出版物的出版发行概况，中国国家图书馆国际组织与外国政府出版物组对其的采集、管理及收藏情况。分析了馆藏文献的载体形式特征，重点讨论了其内容特征及重要文献。以便读者更好地利用之。     

论图书馆文化建设

分析了国内图书馆文化建设的研究现状,提出了在图书馆文化建设中,要把握好文化建设启动时机和切入点,按照合理的程序来进行。并对提出的问题进行了分析和研究。