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This paper presents some numerical
simulations using Discontinuous Deformation Analysis (DDA). First, DDA was
applied to reproduce a series of granular flows released in a large flume. The
comparison between simulated velocity and that measured in the tests
demonstrates the effectiveness of DDA on description of kinematic behavior of
blocky assembly. Simulated results were highly sensitive to the shape and
angularity of blocky elements. Employing unrealistic block might result in
different behavior from real situation. Second, three large landslides
triggered by the Wenchuan earthquake were simulated. A well agreement with
field data was obtained if apparent friction coefficient determined by
post-analysis was adopted.
The functional typologists divide the languages in the world into two groups, one is the subject-prominent language group and the other is the topic-prominent group. English belongs to the subject-prominent language and Chinese to the topic-prominent language. This paper aims to discuss and summarize the types and functions of topic chains on the basis of analyzing the topic chains used in the novel Fortress Besieged written by Chinese famous writer Zhongshu Qian.
We establish the
existence of positive solutions for singular boundary value problems of coupled
The proof relies on Schauder’s fixed point theorem. Some recent results
in the literature are generalized and improved.