序列型函数空间的Kothe对偶

描述一类序列型函数空间,它们与某矢量序列空间等距同构,并应用矢量序列空间方法刻划其Kothe对偶。     

关于仿射集对球的支承与严凸空间的特征

首先新扩张定义了定义了仿射集对凸集的支承及独立支承,找出了仿射集对球凸集支承的判定持征,指出了严凸空间中支承球都是独支承,最后讨论球被直线支承的情形,许多性质也成为严凸空间的特征。     

时空消耗概念下高速公路收费制式探讨

对当前不完善的高速公路收费制式进行了系统的分析,在得出当前收费制式的缺陷后引入时空消耗的概念,提出了以时空单位消耗作为道路提供服务的依据,首先提出了对当前收费制式进行了改进的措施,在收费时考虑时间的因素,对费用进行一定的折算,对时空消耗概念进行推算法,提出了以时间作为计费单位的收费方法,同时对实施该方法的优缺点进行了论述,该方法类似于电话IC卡,最后对高速公路采用电子收费 系统进行全面联网收费的可行性进行了讨论。     

Localization of the brain calculation function area with MRI

The aim of this study is to define the anatomical localization of corresponding brain function area during calculating. The activating modes in brain during continuous silent calculating subtraction and repeated silent reading multiplication table were compared and investigated. Fourteen volunteers of right-handedness were enrolled in this experiment. The quite difference of reaction modes in brain area during the two modes of calculation reveal that there are different processing pathways in brain during these two operating actions. During continuous silent calculating, the function area is localized on the posterior portion of superior and middle gyrus of frontal lobe and the lobule of posterior parietal lobe (P < 0.01,T = 5.41). It demonstrates that these function areas play an important role in the performance of calculation and working memory. Whereas the activating of visual cortex shows that even in mental arithmetic processing the brain action is having the aid of vision and visual space association.     

Action of space charge on aging and breakdown of polymers

The study on how space charges affect aging and breakdown of polymers becomes one of the most important domains. Most of the models are based on the injected charges increasing the local field to induce the breakdown of polymers and breaking the large molecule chains. These models ignore the effects of space charge on the microstructure of dielectric materials. In this review, with the calculation of the electromagnetic energy and the electromechanical energy around a trapped charge and with some new experimental results, it is proved that aging and breakdown in polymers are caused during the detrapping of the trapped charges. Aging and breakdown of the polymers are related to the release of the electromechanical energy around trapped charges.     

空间杆系结构有限元计算结果的可视化

针对空间杆系结构有限元计算结果的特点 ,提出了一种适合于空间杆系结构有限元计算结果图的生成方法 .利用有限元计算结果文件生成变形图、计算截面的内力图、应力图 ,用图形直观地显示杆系结构受力变形的情况及其用户所感兴趣单元上的内力和应力情况 ,并给出了QTZ2 5型塔式起重机的有限元计算结果图的生成算例 .该方法生成速度快 ,算法简洁 .     

二维复空间型的全实曲面

主要利用函数f(x)=maxu,v∈UxM||B(u,u)-B(v,v)||^2研究具有平行平均曲率向量的二维复空间型的全实曲面,并得到关于全脐点子流形的Pinching定理。     

一类特殊的混合模空间

讨论了一类混合模空间 Aq,p ,α 的一些基本性质 ,分数次导数和边界性质 .     

一类非线性热源反演的唯一性

探讨了热传导方程在非局部时间边界条件下非线性热源反演的唯一性问题。应用范数一致估计方法证明了非线性热源在Holder空间上存在的唯一性。     

聚类金字塔树：一种新的高维空间数据索引方法

提出了一种新的有效的高维空间数据索引方法-聚类金字塔树,它先对不均匀分布数据进行聚类处理,然后对聚类的结果实施金字塔分割和存储,由此建立一种有效的索引结构。文中给出聚类金字塔树的几种查询算法。实验证明：处理不均匀分布数据时,聚类金字塔树无论在页面访问次数,还是在CPU总占时间上都优于金字塔树。