高校的学术研究与育人使命

全面贯彻中共中央《关于进一步繁荣发展哲学社会科学的意见》,应努力改变高校哲学社会科学学术研究"育人"功能薄弱的现状,在学术研究取向上和大学生文化品格发育事实相沟通;摈弃庸俗,规范学术行为,以崇高的学术精神赢得学生的尊重和向往;拓展学术研究视野,克服网络技术障碍,提高学术对话水平,在当代大学生的文化品格养成上有所作为。     

Preparation and Tribological Performance of Novel Organotin Compound as Lubricant Additive

Oil-soluble stannous naphthenate (SN) is synthesized by using naphthenatic acid and SnO. And its molecular structure is confirmed by IR and multielement oil analyzer (MOA). The tribological performances of the organotin as lubricant additive are evaluated with a four-ball friction and wear tester. These experiments indicate that the wear scar diameter (WSD) and friction coefficient are diminished while the load-carrying capability increased by comparison with that of base oil. The elemental composition of the boundary lubricating film is examined by means of Auger electron spectroscopy (AES). Synergistic effect is found in the load-carrying capability of the complex of SN and sulfured olefin. The analytical results of AES indicate that the good performance of stannous naphthenate is attributed to the formation of a boundary lubricating film containing Sn on the rubbed surface.     

英国的大学改革与科学复兴

英国在17世纪成为世界科学活动中心。然而，18世纪以后，英国失去了世界科学活动中心的地位，这一地位先后被法国、德国和美国所取代。从19世纪下半叶开始到20世纪初，英国开展了一场旨在改变古典教育传统，加强科技教育的大学改革运动，大学教育的面貌焕然一新。20世纪以后，古老的英国重振雄风，坐上了世界科学巅峰的第二把交椅。     

Nonlinear Analysis of Shape Memory Alloy Component in Rotor System

The active control of rotor vibration was studied while shape memory alloy (SMA) spring component was chosen as bearing of rotor system. The vibration of rotor system was controlled by the phase transformation of SMA with electric heating method. The SMA spring component has nonlinear coupling problem of thermal stress and thermal elasticity, because thermal constants α,β and elasticity constants γ, G vary with temperature when temperature changes sharply. Because δ,ε were both small parameters, their square items could be ignored and approximate results were obtained by perturbation. The characters of α,β, γ, G changing with temperature were analyzed. Results show that the character of thermal diffusivity ot changes with temperature, which cannot influence U,Ψ,So the nonlinearity of ot can be ignored; the character of,β changes with temperature,which cannot influence U, but influences Ψ at high temperature; the character of γ, G change with temperature, which cannot influence Ψ, but influences U with U^(01) ε. The more γ ,G, the more their influence on U;the nonlinearity of βT/pcvεkk influences U and Ψ, which must be calculated.     

Chinese Scientists Unveil Plans to Build Next-generation X-ray Observatory

正Scientists from the Institute of Physics(IHEP),Chinese Academy of Sciences announced on March 2 that they are going to take the lead in building a next-generation X-ray observatory to explore the"extreme universe".With joint efforts from countries including Italy,Germany,France and the UK,the enhanced X-ray Timing and Polarimetry mission(e XTP),which is estimated to cost over three billion     

浅谈RSS技术在教学中的应用

随着Internet信息的不断增长以及XML技术的发展,RSS技术应运而生。本文介绍了RSS技术的特点,从六个方面介绍了RSS在教学中的应用,使RSS更好地为学习者服务。     

基于CPFR的供应商与零售商关系治理研究

CPFR(Collaborative Planning Forecasting & Replenishment合作计划、预测与补充)是近几年国内外供应链领域研究热点。在本文中,CPFR被界定为应用于供应链中跨企业的关系专用性信息技术(IT)系统,该系统不仅帮助企业通过信息共享获取战略收益与竞争收益,同时作为一种关系合同,为合作企业提供一种不依赖于所有权的控制与激励,连同声誉、信任与适应形成一种有效的治理模式。     

论军事情报分析中竞争性假设分析法的应用

由于军事情报分析人员认知偏见和思维定势的存在,长期困扰着军事情报分析的科学性和有效性。针对这一现状,介绍了竞争性假设分析法(ACH)在军事情报分析中的应用。     

智能学习分组:从通用模型到大数据框架

学习分组是协作学习活动设计的首要阶段。随着学习场所的快速变化、多模态交互过程复杂性的增加,采用传统的随机分组、教师指派或学生自我选择等方法进行协作学习分组的效率十分低下。研究提出基于智能技术构建自适应的协作学习小组。首先,阐述了学习分组的价值,即构建合理的协作学习环境、兼顾学生的个体差异和促进教育资源优质公平;其次,总结了影响智能学习分组的因素,包括个体属性、小组学术与物理构成以及学习者与环境的交互;最后,描述了经典场景下智能学习分组的通用模型,并讨论了大数据背景下智能学习分组的前景与挑战。针对大数据驱动智能学习分组的稳定性问题,基于机器学习中的集成学习思想构建了大数据共识分组框架。此框架有望为人工智能促进未来规模化的个性化教育提供支持。     

知识型团队核心价值观认同对组织竞争力的促进机制研究——基于Sternberg成功智力视角的数据检验

利他性偏好在经济学领域对"经济人假设"产生了深远的冲击。知识型人才不仅关注自身的利益,也关注他人、社会和国家的利益。核心价值观认同对知识型人才的技术创造力存在着内在的激励作用。以我国知识型团队为样本数据,借助结构方程模型检验了知识型人才核心价值观认同、成功智力和组织竞争力之间的相关性,发现核心价值观认同对知识型团队组织竞争力促进效应的存在性,为我国知识型团队人力资本开发战略与策略的调整,以及为我国人力资源管理学科建设的推进提供了现实性的理论支持。