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Mohr-Coulomb strength criteria is a conventional method for judgment of rock failure. Shear stress τ on the slip surface of rock is often calculated with principal stresses σ1 and σ3, and it is used to compare with the ultimate strength τf to evaluate the situation of rock. However, the position of slip surface, shear stress τ and ultimate strength τf calculated with a set of parameters σz, σx and...
In highway engineering, pre-estimation on the global stability of highway slopes is a key to construction design and safety. The factors on slope stability include geological data, hydrographic data, situation of slopes, the way of cut, and so on. Therefore, a suitable analytical methodology of system engineering integrating the comprehensive qualitative and quantitative information is needed. A multi-level...
Over 50 million people worldwide suffer from epilepsy. Recently, researchers have proposed computer-aided epilepsy diagnostic systems based on classifying scalp epileptic interictal and normal EEG. Features used in the classification can be divided into two groups: classical spectral features and dynamic features. Classical spectral features are similar to major frequency component identification...
In this paper, we propose a new adaptive Differential Evolution algorithm, in which a simple mechanism based on Iterated Function System is applied to the control parameters F and CR. The performance is reported on a set of benchmark functions, which shows that our algorithm is better than, or at least comparable to the standard DE algorithm and the other adaptive versions of DE algorithm.
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