我国新能源汽车产业可持续发展综合评价及制约因素分析 ——基于创新生态系统视角

采用定性分析和定量研究相结合的方法,运用生态学视角的类比分析法构建我国新能源汽车产业创新生态系统的理论模型。基于此理论模型,选取新能源汽车产业可持续发展评价指标体系,运用全排列多边形综合图示法,对我国新能源汽车产业可持续发展水平进行测度,并构建障碍度模型,分析我国新能源汽车产业可持续发展的关键制约因素。     

光线追踪中射线与多边形求交的一种算法及实现

本文给出了在光线追踪中射线与多边形求交的一种算法;此方法先判断,后求交、     

When Intuition Beats Logic: Prospective Teachers’ Awareness of their <Emphasis Type="Italic">Same Sides – Same Angles</Emphasis> Solutions

This paper indicates that prospective teachers’ familiarity with theoretical models of students’ ways of thinking may contribute to their mathematical subject matter knowledge. This study introduces the intuitive rules theory to address the intuitive, same sides-same angles solutions that prospective teachers of secondary school mathematics come up with, and the proficiency they acquired during the course “Psychological aspects of mathematics education”. The paper illustrates how drawing participants’ attention to their own erroneous applications of same sides-same angles ideas to hexagons, challenged and developed their mathematical knowledge.