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A novel numerical model which calculates the air data for flush airdata system was developed based on the Kriging interpolation. This method constructs the transformation matrix between the inputs i.e. the pressure measured by the sensor and the outputs i.e. angle of attack, angle of slide and Mach number; hence the required air data can be directly computed without iterations. As a result, the air...
Take Yunma-2 as the research object discussed the shearing force and shearing strength of the bottom stalk of china-hemp. The study showed that the mean maximum shearing force was 1373.8N; the mean maximum shearing strength was 10.87 MPa in harvesting period. The maximum shearing force increased along with the stalk diameter, and the shearing characteristics were influenced mostly by the stalk's maturity,...
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