片断的知识

Multimedia can help students focus attention on the link between knowledge, rather than fragmented, isolated individual point, use multimedia learning system, students are faced with "where" the "study" of choices to retrieve the information needed.

多媒体能引导学生把注意力放到知识间的联系上，而不是片断、孤立的个别点上，使用多媒体系统学习，学生面临着"往哪走""学什么"的选择，以检索所需的信息。

Based on the categorical knowledge representation and improving the completeness of categorical knowledge pieces,we present a knowledge reasoning method using the categorical construction of analogical functors and pushouts,through knowledge association and deduction,to achieve the supplements of objects and morphisms.This dissertation proposes a similarity measure method for decision-making knowledge acquisition based on greatest common subcategory,and this method calculates the similarity between knowledge pieces from the perspectives of objects,morphisms,types and type categories.A knowledge merging method and the measure of multiple knowledge pieces merging are also presented.

在范畴化知识表示的基础上，为提高范畴化知识片断的完备性，提出运用范畴的类推函子和推出来实现知识扩展推理方法，通过联想和推演过程，实现范畴化知识结构的对象和态射补充，并从对象、态射、定型和定型范畴四个层面量化知识片断相似性，提出基于最大公约子范畴的决策知识相似度计量方法，以及知识片断的语义融合度计量方法。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。