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It has always been a big issue to provide better service at public area. One of the issues is the indoor positioning service. In this paper, we propose an indoor positioning and monitoring system based on the application of personal smart devices and iBeacon technology. Aiming at high accuracy positioning, we proposed optimal iBeacon nodes placement through the topological maps constructed from growing...
The taint analysis method is usually effective for vulnerabilities detection. Existing works mostly care about the accuracy of taint propagation, not considering the time cost. We proposed a novel method to improve the efficiency of taint propagation with indices. Based our method, we have implemented TWalker, an effective vulnerabilities detection tool that enables easy data flow analysis of the...
The lack of selectivity is one of the problems of chemical sensor technologies in real world applications. In an effort to develop chemical sensors of improved selectivity, we integrated electrochemistry and optical spectroscopy into one single transducer. An electrically conductive polyaniline (PANi) membrane has been coated on the end of an optical fiber to form a fiber optoelectrode. Two electrodes...
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