We consider the coverage and connectivity problem of a sensor network with n unreliable nodes, uniformity arranged over a square region of unit area. We propose a novel triangle-arranged circle division method to obtain the the formula of the relationship of probability of coverage and connectivity, sensing radius, transmission radius, failure probability and the numbers of the nodes using prob...

We present a comparison between measurements of the radius of the anterior and posterior lens surface, which was performed using corrected Scheimpflug imaging and Purkinje imaging in the same group of participants (46 for the anterior lens, and 34 for the posterior lens). Comparisons were also made as a function of accommodation (0 to 7 D) in a subset of 11 eyes. Data were captured and processe...

A wide application of sliding mode variable structure control as a nonlinear robust method, has been witnessed in anti-swing positioning bridge crane system. Aiming at the problem that system is not approaching process, new Global-Equivalent Sliding Mode Controller (GESMC) based on proposed. This controller can realize anti-sway under condition uncertain model parameters and external disturbanc...

A simple and effective automatic focusing algorithm is proposed in this article. The principle of the proposed automatic focusing algorithm is based on that, for the radial test pattern, a best-focused image should have the smallest blurred region in the middle of the acquired image, and hence, should have the smallest equivalent radius. The circular Hough transform has became a common method i...