Recent developments on complexity science.

Experimental results show that the edge detection method of the crater proposed in this paper is better than other edge detection methods; compared with other crater detection methods, the proposed method has higher detection accuracy and more correct detection rate. In the paper entitled 'A novel color image encryption based on fractional order Lorenz system' by S. Li et al., we have a novel colour image encryption algorithm is proposed based on the fractional order Lorenz system. Since the node information of a complex network is always not fully available, state estimation technique becomes an important tool to estimate the desired node information through the received measurement outputs. The high precision mechanical sensors are used to install on the rotating shaft in the traditional methods, occupied the space and increased system cost and the mechanical sensors are easily affected by the environment, reduced the measurement accuracy and system stability. [Extracted from the article]