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In 1996, J. Zhou and D. Gollmann proposed a fair non-repudiation protocol, which was unfair in fact for its lack of timeliness. K. Kim, S. Park and J. Baek improved it by adding time limit information to protocol messages. However, the improvement needs mechanisms to synchronize clocks among the protocol entities, thus making its implementation inefficient.(More)
To solve the problem of metal-particle pollution in DC GIL, in a more realistic situation of coaxial cylindrical electrodes, the motion analysis of spherical metal particles is done based on DC GIL structure. Based on the theory of fluid mechanics and considering the SF<sub>6</sub>/N<sub>2</sub> mixtures parameters, analysis of the flow resistance in the(More)
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