NURBS曲面的算法分析及实现

讨论了ＮＵＲＢＳ曲线和节点矢量、控制点和基函数对曲面形状的影响，给出了ＮＵＲＢＳ的算法分析及其实现方案，最后，将ＮＵＲＢＳ曲面与老式曲面（如Ｂ样条、Ｂｅｚｉｅｒ曲面等）进行了比较。     

提高开启式2F48型活塞式制冷压缩机性能的研究

本文通过对2F4.8制冷压缩机热力过程的计算机模拟,获得气阀参数对压缩机热力性能影响的数据资料,以改进气阀结构。经过试验证明,可提高压缩机制冷量和性能系数10%以上。     

The Impact of Taking Parental Leave on Fathers’ Participation In Childcare And Relationships With Children: Lessons from Sweden

In Sweden, government-mandated paid parental leave has been available to both mothers and fathers since 1974. By 2006, each parent had two non-transferable leave months and nine additional months to share. From the beginning, parental leave was presented as a policy designed to promote gender equality, with women and men having equal opportunities and responsibilities to contribute economically to the family and care for children. Sweden thus provides a unique setting to explore whether social policy can be an important instrument for changing the gender contract. Analysing survey data from 356 fathers working in large private companies, we found that the amount of parental leave days taken had positive effects on several aspects of fathers’ participation in childcare and on their satisfaction with contact with children, controlling for other factors contributing to fathers’ participation in childcare. Our findings suggest that the full potential of Sweden's parental leave policy for degendering the division of labour for childcare will not likely be met until fathers are strongly encouraged by social policy to take a more equal portion of parental leave.     

卧式椭圆轨迹振动筛的自定中心问题研究

当振动筛筛箱各点作长轴平行于筛面的椭圆轨迹运动时,这种振动筛的胶带轮不可能只作定轴转动(即自定中心)。如果恰当地选择胶带轮几何中心的偏心值,胶带轮的摆动幅度将减小,因此,胶带的工作情况仍将得到改善。     

New imperfect rankings models for ranked set sampling

Ranked set sampling is a sampling approach that leads to improved statistical inference in situations where the units to be sampled can be ranked relative to each other prior to formal measurement. This ranking may be done either by subjective judgment or according to an auxiliary variable, and it need not be completely accurate. In fact, results in the literature have shown that no matter how poor the quality of the ranking, procedures based on ranked set sampling tend to be at least as efficient as procedures based on simple random sampling. However, efforts to quantify the gains in efficiency for ranked set sampling procedures have been hampered by a shortage of available models for imperfect rankings. In this paper, we introduce a new class of models for imperfect rankings, and we provide a rigorous proof that essentially any reasonable model for imperfect rankings is a limit of models in this class. We then describe a specific, easily applied method for selecting an appropriate imperfect rankings model from the class.     

现代编辑意识浅议

编辑意识是指在编辑活动中，编辑人员所具有的观念，也就是引导编辑做好选题策划、审稿编稿、出版发行的指导思想，是从事编辑工作的主导意识。不断增强和优化编辑个体素养与群体意识、社会服务与引领学科发展意识、创新与超前意识、商品与经营意识，对促进刊物品质具有重要意义。     

论科技统计对高校发展的重要作用

科技统计是科学决策的基础，是组织架构设立和调整的依据，是科学制定和有效评价激励政策的前提，是贯彻“以人为本”管理思想的重要手段。对如何加强科技统计工作也提出了相关建议。     

《论语·学而篇》第十六章新解

《论语·学而篇》第十六章"不患人之不己知,患不知人也",传统的解释是"不着急别人不了解自己,却着急自己不了解别人",这未能切中孔子原意.从论语的不同注本看,更重要的是从孔子和《论语》的一贯精神看,该章应解释为"不要担心别人不了解自己,而应担心自己没有东西让别人了解".     

创建绿色女子大学刍议

建设绿色女子大学、开展绿色教育,是实施可持续发展战略的必然要求,是新世纪对大学的呼唤,有着非常重要的意义.绿色大学就是将保护生态环境的活动、行为、计划、思想和观念等可持续性发展的理念贯穿到学校的各项工作中去.女子大学应该发挥自己性别特长,把绿色大学作为一种价值进行追求.本文主要从绿色女性人才、绿色产业、绿色校园三个方面论述了建设绿色女子大学的途径.     

论土族民间信仰象征

文章在田野调查的基础上，对土族民间信仰中的象征体系从象征思维、结构、具象等方面进行了归纳分析，认为土族民间信仰象征内容十分丰富，且随着社会的演进，其程序亦不断发生异化。