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  1. No Access

    Chapter and Conference Paper

    Research on the Evaluation System Construction of County Innovation Driven Development-Based on Evaluation and Measurement Model

    County territory is the cornerstone of China’s economic and social development, and county innovation is an important part of the national innovation system. The implementation of innovation driven development...

    Li Lanchun, Chen Wei, Guo Kaimo, Yue Fang, Tang Yun… in Artificial Intelligence in China (2022)

  2. No Access

    Article

    Level set methods based on distance function

    Some basic problems on the level set methods were discussed, such as the method used to preserve the distance function, the existence and uniqueness of solution for the level set equations. The main contributi...

    Wang De-jun, Tang Yun, Yu Hong-chuan, Tang Ze-sheng in Applied Mathematics and Mechanics (2003)

  3. No Access

    Article

    On the injective metrization for infinite collapsible polyhedra

    It was proved in [5] that every finite collapsible polyhedron admits of an injective metric. In this paper, by using some new techniques, we extend the conclusions in [5] to the infinite case.

    Mai Jiehua, Tang Yun in Acta Mathematica Sinica (1991)