Yunpeng Ren

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This paper is mainly about a new robot control system, which has open structures, and whose architecture is based on CAN bus for a joint modular robot. The hardware system of the joint control module is designed for signal sampling and processing, data storage and communication. ATmega64 SCM is selected as the core processor. A CAN card is used for(More)
OBJECTIVE To investigate the preparation of a chitosan-encapsulated porus calcium polyphosphate (CPP) bioceramic so as to provide a feasible approach to repair of the bone defect. METHODS The chitosan microspheres were produced by chemical procedures. The CPP bioceramic was made by the following steps: annealing, ball milling, admixing, and calcinating.(More)
Laser shock peening of titanium alloys has been widely applied in the aerospace industry. However, little is known of the nanocrystalline formation characteristics and mechanisms. In this investigation, a nanocrystalline layer was formed in the duplex Ti-6Al-4V titanium alloy surface region by means of multiple pulsed laser shock peening (LSP). The phase(More)
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