The adaptability of features definition to applications is an essential condition for implementing feature based design. This paper makes attempt to present a hierarchical definition structure of features. The propos...The adaptability of features definition to applications is an essential condition for implementing feature based design. This paper makes attempt to present a hierarchical definition structure of features. The proposed scheme divides feature definition into application level, form level and geometric level, and provides links between different levels with feature semantics interpretation and enhanced geometric face adjacent graph. respectively. The results not only enable feature definition to abate from the specific dependence and become more extensive, but also provide a theoretical foundation for establishing the concurrent feature based design process model.展开更多
Catchwords can be deemed as a language phenomenon, which shouldn＇t be ignored or neglected. Based on the literature review of relevant studies of catchwords in China, a diachronic study on Chinese catchwords used dur...Catchwords can be deemed as a language phenomenon, which shouldn＇t be ignored or neglected. Based on the literature review of relevant studies of catchwords in China, a diachronic study on Chinese catchwords used during the past several decades was conducted, whose focus is on the discussion of the definitions, features, origins of Chinese catchwords and the tendencies of their development.展开更多
文摘The adaptability of features definition to applications is an essential condition for implementing feature based design. This paper makes attempt to present a hierarchical definition structure of features. The proposed scheme divides feature definition into application level, form level and geometric level, and provides links between different levels with feature semantics interpretation and enhanced geometric face adjacent graph. respectively. The results not only enable feature definition to abate from the specific dependence and become more extensive, but also provide a theoretical foundation for establishing the concurrent feature based design process model.
文摘Catchwords can be deemed as a language phenomenon, which shouldn＇t be ignored or neglected. Based on the literature review of relevant studies of catchwords in China, a diachronic study on Chinese catchwords used during the past several decades was conducted, whose focus is on the discussion of the definitions, features, origins of Chinese catchwords and the tendencies of their development.
