负热膨胀材料ZrV_2O_7研究进展及应用

本文总结了近年来国内外文献ZrV2O7研究进展,讨论了常用的合成方法以及负热膨胀的机理。并介绍了ZrV2O7复合陶瓷的研制与应用,指出了负热膨胀材料ZrV2O7潜在的应用领域,并对其发展趋势和应用前景进行了预测。     

数字化图书馆平台开发之Struts2应用

以实例介绍了Struts2在数字图书馆中的应用。     

Stability and dissipative analysis for a class of stochastic system with time-delay

This paper deals with the stability and dissipative problem of a class of stochastic hybrid system. The system under study involves Markovian jump, impulsive effects and time delay, which are often encountered in practice and are the sources of instability. Our attention is focused on analysis of whether the stochastic hybrid system with time-delay is stochastically asymptotically stable and strictly (Q, S, R) dissipative. By introducing an extra artificial time instance, the equivalent system is obtained and the sufficient conditions are derived by using linear matrix inequality (LMI) techniques. The main results of this paper unify the existing results on H_∞ control.     

采用酚醛植物纤维素粘附CO_2的化学防火研究

当前化学防火材料耐火极限较低,且成本较高。设计一种新型的有机防火材料,结合传统的有机植物纤维防火材料和酚醛FRP型防火材料的优点,采用酚醛植物纤维素粘附CO2技术得到一种新型防火材料。以活化的天然酚醛聚合材料为聚阴离子性正极材料,并把有机植物纤维素溶解到超临界溶剂中,研究其化学平衡和极相平衡,通过化学反应产生一种惰性液相介质,采用固相辅助回流法合成新型的酚醛植物纤维素。材料在受到高温燃烧过程中形成活性电子极性传导性差,能有效吸附CO2,阻止燃烧。通过实验和性能测试验证了该防火材料的良好性能,防火能力和抵抗时间增强。     

R&D co-operation and innovation a microeconometric study on French firms

The scope of this paper is to report new empirical evidence on the determinants of R&D co-operation. Indeed, the literature on the capabilities of firms emphasises the role of knowledge in the performance and evolution of firms who use knowledge developed in others to build their own knowledge capital. R&D co-operation between firms is one of the many strategies by which this knowledge may be transmitted. Several theoretical models have stressed that R&D co-operation is more likely when the level of spillovers is high. While this supposition is used in many theoretical models, it has rarely been tested before. Our results do not lend strong support to this intuition. Indeed, our spillover variables (national pure spillovers, national rent spillovers and imports of machine tools), which were supposed to match the theoretical notion of spillovers used in these theoretical models have a positive but not a significant role when explaining R&D co-operation. The R&D co-operation increases with size and with R&D intensity, but not with market share. It also increases with the budget spent on paying license fees and on acquiring patents and labour from foreign firms. In this study, we also analyse the determinants of innovation. In more precise terms, we compare the effects of R&D co-operation to those played by traditional internal factors and those exerted by external, pure and rent spillovers on the innovation capacity of the firms. Our results show that the commercial success of innovations of French firms depends mainly on size, market share, R&D intensity and human capital. Inward FDI from industrialised countries exerts a positive and significant effect. The finding highlights the important role of the absorptive capacity of firms. Spillover measurements, such as the acquisition of machine tools, foreign patents, licenses, and technological opportunities have a positive impact on innovation.     

浅析钱理群的写作教学理念

写作教学是语文教育中的重要环节。钱理群在语文教学中始终坚持立人思想,这一思想也贯彻在写作教学中。在写作教学中,钱理群提出了自己的见解,他认为写作过程是发现与对话的过程,是师生共同参与的过程,是一个各教学阶段要求都不同的过程。思考好这些过程的内涵,能使我们更好地进行写作教学。     

论以“三不朽“说为特征的儒家人生价值观

文化的精华部分集中表现为哲学。中华传统哲学的最大成就是人生哲学 ,儒家的人生价值追求集中体现为“三不朽”说。儒学之所以两千多年来具有持久和深邃的魅力 ,其重要一点就在于深切关注并回应当下的现实人生 ,为解决现实人生问题提供价值资源 ,为人类生存提供价值座标追求 ,是我们抵制拜金主义、享乐主义和极端个人主义的思想武器     

合作学习在英语写作教学中的运用

写作是一门综合性的技巧，是一种社会活动。小组讨论在写作教学中显得非常重要．而合作学习就是这种小组讨论教学方式的最佳表现形式。将合作学习引入写作教学有助于提高学生的思维和写作能力，也使教师的业务素质得到提高，但也存在不少问题。本文就合作学习在写作教学中的具体运用及其实施效果进行了探讨。     

绘本写话课堂教学策略刍探

以绘本为载体开展写话教学,作为语言教学的有效途径,受到教师的广泛关注。教师应针对学生词汇及阅读量不足、语言能力不强的特征,利用绘本为学生提供广阔多元的写话素材,有效训练学生语言表达技巧,为写话教学提供丰富的教学模板及路径,从而提升学生语文综合能力。文章对绘本写话课堂教学策略进行探讨。     

作文教学中渗透心理教育的实践与思考

作文教学在渗透心理教育方面具有得天独厚的优势,可以通过创设期待,用目标激发学生的写作热情,通过评价培养学生的主体性,激发学生的潜能,通过鼓励学生自省,以文达情,促进完美人格的形成。