Zhao Jue

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At present, most of the communication functions of the smart field instruments are Modbus protocol with RS485 interface. With the popularity of the Profibus fieldbus applications,more and more smart field instruments proposed functional requirements for Profibus. STM32 combined with the communications chip VPC3 + C, completing a Modbus-Profibus total line(More)
Four-, five-, and six-year-old Chinese and Canadian boys and girls were presented a series of 11 graphic models and were asked to draw them. Supporting Piaget's theory, the data indicated that drawing performance on the topological dimension was better than the performance on the Euclidean dimension, and that there were neither gender nor cultural(More)
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