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Humanitarian demining requires a variety of methods and instrumentation for effective mine clearance, since a wide range of materials are used in mine manufacturing. However, landmines release vapours over time that can be detected, for example, by sniffer dogs. Optical sensor systems are especially suited to this application due to the potential for lightweight, portable, low-cost systems that nevertheless...
After the random failure period, CNC machine tools will enter the wear-out failure period as a result of abrasion, fatigue and aging. Therefore, it is extremely important to monitor the changing trend of operation state and thus to construct rational maintenance policy or determine when to scrap it. In this paper, the mean time between failures (MTBF) is chosen to be the characteristic variable of...
Recently, various 3-D talking heads have been applied to computer-aided language learning as a novel mode. However, there is a lack of objective evaluation of learners' perception of the talking head when learning Mandarin as a second language. This study used eye-tracking methodology to evaluate a multimodal 3-D Mandarin pronunciation tutor, in comparison with real human instructor. The pronunciation...
In human and robot cooperated electronics manufacturing system, correctly mating connectors by robot, not human, is vital for the improvement of overall performance. Although static force model has been established based on force and position information during mating, there are some difficulties should be overcome to implement a mating process monitoring task on deformable PCBs. For this purpose,...
As more and more metros were built in modern city, the new constructing metro lines will be inevitably crossing the existing one. During the construction process of the new metro line, excavation may lead to the displacement of the existing tunnels and the tracks, sequentially affect the travel of trains, so monitoring on the new constructing lines is very important. The traditional manual monitoring...
Firewalls are the mainstay of enterprise security and the most widely adopted technology for protecting private networks. As the quality of protection provided by a firewall directly depends on the quality of its policy (i.e., configuration), ensuring the correctness of security policies is important and yet difficult.To help ensure the correctness of a firewall policy, we propose a systematic structural...
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