Longji Zhu

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A simulation system of direct torque control speed adjustment is introduced, it include field-weakening control. The simulation system reaLized induction-motor speed control within full-speed regions, constant torque adjustment less than foundation speed and constant power adjustment greater than foundation speed. The results of simulation show that system(More)
In this paper a wheeled mobile robot and multi-sensors fusing technology are introduced based on the embedded controller of the S3C2410. The function modules of the robot with avoiding obstacle, automatically tracking are analyzed. The ultrasonic ranging, image tracking, and speed detection cirCuits are designed, which adopted multi-sensor fusing(More)
The study was conducted to investigate the influence of biochar and/or phosphate-solubilizing bacteria (PSB) inoculants on microbial biomass, bacterial community composition and phosphorus (P) fractions during kitchen waste composting amended with rock phosphate (RP). There were distinct differences in the physic-chemical parameters, the proportion of P(More)
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