Chuijie Yi

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Because the characteristic frequencies of cockpit background sound recorded by Cockpit Voice Recorder (CVR) is the key evidence in investigating accident causes for wrecked airplane. And it is crucial for investigator to verify the characteristic frequencies through different methods. To obtain exact characteristic frequencies for cockpit background sound,(More)
Recently, a novel biomass pulverization technology was proposed by our group. In this paper, further detailed studies of this technology were carried out. The effects of feed moisture and crusher operational parameters (rotor speed and blades gap) on product particle size distribution and energy consumption were investigated. The results showed that higher(More)
Corn is one of China's three major food crops, which sowing size and output ranked second in the world. The corn production and the quality requirements further enhance together with utilizing in food and feeding. In this paper, the status is analyzed such as the form of corn sowing, agronomic requirements and classification of corn harvesting machines. It(More)
The test platform of wheat precision seeding based on image processing techniques is designed to develop the wheat precision seed metering device with high efficiency and precision. Using image processing techniques, this platform gathers images of seeds(wheat) on the conveyer belt which are falling from seed metering device. Then these data are processed(More)
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