强N(2,2,0)代数

在N（2，2，0）代数的基础上引入了强N（2，2，0）代数的概念，并讨论了强N（2，2，0）代数的基本关联结构和关联并结构的性质．     

人民币对美元汇率波动的实证检验

利用2005年7月21日至2007年12月28日的人民币对美元汇率波动数据,建立人民币对美元汇率波动的ARCH（1,0）模型,以说明人民币汇率走势的特征。并通过实证得出两个结论：一是人民币对美元汇率的波动严重依赖其前期波动,前期汇率数值会全部传导到本期;二是人民币汇率市场波动存在ARCH效应,即人民币汇率的时间序列具有波动异方差性。     

活动理论框架下的社会操作系统设计

伴随着web2．0技术的飞速发展,产生了移动学习、泛在学习、无缝学习等新的学习方式变革,预示着学习革命的新浪潮即将到来。新的学习方式的出现,需要一个设计良好的学习环境与工具的支持。出于这方面的原因,如何构建一个方便、高效的基于web2．0技术的社会性学习环境就成了当前研究的热点。本文以活动理论为指导,探讨社会操作系统的设计思想、方法及其概念框架。     

Authority and Authority Relations in Mathematics Education: A View from an 8th Grade Classroom

Compared to studies in general education, authority has received little attention in mathematics education, despite an increasing interest in sociological perspectives in mathematics classroom research. The subject of authority is particularly important in mathematics education, on the one hand, because of the immense authority mathematics itself seems to possess and pass on to its practitioners, but also, on the other hand, because of the anti-authoritarianism present, to some degree, in many trends in mathematics education such as cooperative learning approaches and constructivist pedagogies. Such an anti-authoritarian stance appears justified by data from an 8th grade mathematics classroom (supplemented with data from a second 8th grade classroom) which suggest that teachers possess immense authority in the eyes of the students and that this and other authority relations are strongly evident in the students non-reflective ways of interacting not only with their teachers but also among themselves. However, theoretical considerations on authority show that the problem may not be authority per se but the way one conceives the notion of authority, that there exist kinds of authority, such as Bennes anthropogogical authority, which can encourage reflective and also fruitful collaborative work.     

脂肪醇对发光菌毒性的QSAR研究

应用分子力学方法MM+和半经验量子化学PH3法得到了15种脂肪醇分子的优势构象,同时获得电子结构和几何结构参数,并将这些参数与脂肪醇对发光菌的毒性相关联.结果表明:脂肪醇对发光菌的毒性与氢原子最高正电荷(Qmox+)及疏水系数(1gP)的相关性较好,成功地建立了15种脂肪醇的构效关系武.     

Q_(p,0)空间与随机幂级数

通过研究复函数空间与随机幂级数fω(z),得到fω(z)几乎必然地属于Qp,0空间的充分条件。     

关于（Ⅱ）_（n＝0）系统极限环的分布

本文得到了二个保证（Ⅱ）ｎ＝０系统的极限环是（１，１）分布的充要条件。     

R0-代数的MP-滤子

R0-代数是基于系统研究形式演绎系统∫^*而提出的一类逻辑代数．本文证明了一个R0-代数的所有MP-滤子所成的集合分别构成一个Brouwer格、一个伪补分配格和一个Dedikind格．     

间,对三氟甲基苯腈的工艺改进

间,对三氟甲基苯腈是一种重要的医药、农药中间体.叙述了在一个反应器中利用NiCl₂和P(C₆H₅)₃,用还原性金属粉末原位还原生成的Ni((C₆H₅)₃)₃作为催化剂,将间、对氯三氟甲苯转化为相应的芳香腈,转化率分别达到87.0%和82.7%.该反应条件温和,易于控制,已经实现工业化生产.