第一章中介绍了电负性理论的历史发展和现状,指出电负性理论发展过程中的两个主要特征:简明性和有用性.第二章给出了原子-键电负性......

<正>The difference discrete system of Euler-beam with arbitrary supports was constructed by using the two order central ......

Engineering design and geometric modeling often require the ability to modify the shape of parametric curves and surface......

Based on finite element method and finite strip method, a simplified approach was presented to analyzehigh-rise frame tu......

An equivalent bar conception is firstly developed for the computer analysis of pantographic foldablestructures. The unip......