在大学物理课程中实行选教制教学的探索和实践

阐述了教学运行模式改革的必要性和可行性,介绍了成都理工大学在大学物理课程教学中实行选教制教学的一些具体操作方法、对教学教改的促进作用以及所产生的效果.     

建筑物混凝土中游离氚水(HTO)的测定

设计了一套在较低真空度及液氮一饱和盐水浴条件下，对建筑物混凝土中的游离HTO进行解析的实验装置，并研究了可能对解析产生影响的各种实验条件．结果表明：在压力约为0．01MPa条件下，蒸馏温度是影响HTO析的重要因素，240℃时就能将存在于混凝土中97％以上的游离HTO完全解析出来；而浸润时间、浸润体积及蒸馏时间对HTO解析无显著影响．     

略论李世民及其统治集团法律思想之特点

唐初贞观年间，李世民及其统治集团，为了达到天下“致治”，吸取隋亡历史教训，确立“安人宁国”的政治路线，推行德治仁政，“宽仁慎刑”，选贤举能，选拔官吏注重“才行俱兼”、制定“考绩黜徒”的用人制度；将纳谏与执法、守法结合起来，较好地解决皇权与法权矛盾。这些有别于其它朝代的法律思想的推行，与“贞观之治”的取得有着紧密的因果关系。     

Grinding Characteristics Of Directionally Aligned SiC Whisker Wheel-Comparison With Al2O3 Fiber Wheel

A unique SiC whisker wheel was invented,in which the whiskers were aligned normally to the grinding wheel surface.In this paper,grindabilities of the SiC whisker wheel are investigated and compared with those of other wheels of SiC grains,Al2O3 grains,as well as Al2O3 long and short fibres which were also aligned normally to the grinding wheel surface,respectively.The main research contents concern grinding characteristics of a directionally aligned SiC whisker wheel such as material-removal volume,wheel-wear rates,integrity of the ground surfaces,grinding ratios and grinding efficiency.Furthermore,grinding wheels of whiskers and fibres have a common disadvantage:they tend to load easily.The authors have proposed a simple method of loading-free grinding to overcome this propensity and investigate some related grinding characteristics under loading-free grinding conditions.