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This paper aims to improve bond surface smoothness, sharpening quality and efficiency as well as control grain protrusion height. Systematic research was performed on pulsed fiber laser sharpening of a coarse-grained bronze-bonded diamond grinding wheel. The results show that bond surface smoothness is related to the laser spot overlap ratio Uc and the laser scan track overlap ratio Ul. In the range...
A pulsed fiber laser was employed in a systematic study on the tangential profiling of a coarse-grained bronze-bond diamond grinding wheel. The goal of the present study was to improve the profile quality and enhance the efficiency and accuracy of the profiling process. Our results demonstrate that when using a long laser pulse, graphitization of the grain after profiling is unavoidable. However,...
In this paper, we proposed an auction algorithm for the subchannel allocation in OFDMA cellular networks. This algorithm allows users to fairly compete for the using of the subchannel through a new bidding strategy. The bidding price is according to the difference between the logarithmic function of the data rate given by the subchannel at present slot and the long term average data rate. We introduce...
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