Papers by Author: Yi Ping Shi

Abstract: The research combines the scientific research reality, which meets to the characteristic and environment request of all-terrain vehicles (ATV). According to the principle of component lectotype for Powertrain Coupling system of HEV, and the demands of performance parameter of ATV about power, torque and speed when ATV is under movement condition, this research is focus on the powertrain coupling system between engine electric motor and wheel which has carried on the optimized matching, the modeling simulation and the experiment. The article has determined one kind of new multipurpose design and development plan on the powertrain coupling system in electric and HEV for ATV. It focal introduces the new powertrain coupling system based on the Cycloidal Planetary gearing transmission with Few-tooth-difference (CPF), which have applied in powertrain coupling system of the multipurpose light electric and HEV for ATV. To provide the control strategy of clutches-brakes and brakes system with electromagnetic controlled in the CPF for developing controllers for motor, engine and central controller for E & HEVs ATV power distribution. The findings indicated, the powertrain coupling system designs might satisfy the performance requirement for entire vehicle in wild beach. The method and the obtained result provided basis design theory for ATV and multipurpose light electric and HEVs. The technology has applied to ATV in Ningbo Saiting Electric Bicycle Science & Technology CO., LTD, and has applied patent.

Abstract: Orbital implant, used for filling the space after enucleation, played an important role in the optical orthopedic operations. However, the clinical application of soft orbital implants was in a limited extent. This paper focused on the synthetic method of a new kind of soft poly (2-hydroxyethyl methacrylate) (PHEMA) orbital implant. This method included two steps, making the orbital implant with through-holes by salt leaking method and improving the compress property of PHEMA by copolymerizing it with methyl methacrylate (MMA). Scanning electronic microscope (SEM), thermo gravimetric analysis (TGA), and compress experiment were carried out to evaluate the physical properties of the implant. And to evaluate the biocompatibility of this poly (HEMA-co-MMA) orbital implant, short term and long term observations were studied after subcutaneous implantation of material blocks and implantation of orbital implants (diameter in 14mm) in rabbits’ orbits.