The hierarchical Ag/AgCl-TiO 2 hollow spheres were synthesized by depositing Ag/AgCl nanoparticles on TiO 2 hollow spheres via a precipitation photoreduction method, and they were further characterized using TGA, SEM, TEM, XRD, XPS, UV-vis DRS and photoelectric chemical analysis. The analysis showed that the hierarchical Ag/AgCl-TiO 2 hollow spheres exhibited the highest photocatalytic activity, which was approximately 13 times higher than that of TiO 2 hollow spheres. The high photocatalytic activity of the composites is due to efficient electron-hole pairs separation at the photocatalyst interfaces, and localized surface plasmon resonance of Ag nanoparticles formed on AgCl particles in the degradation reaction.
In this paper, a new multi-motion pattern bionic robot was proposed by us. Though we analyzed the robot as a hybrid series-parallel mechanism, the robot is a wheeled-legged robot, and a new methods for constructing the kinematic model of the special four-bar mechanism of the robot very quickly and efficiently was introduced. Then, the kinematic model of the parallel mechanism of the multi-motion mode bionic robot was constructed when the robot was in the stance phase.
Based on the walking mechanism and the researching method for the serial-parallel mechanism, one multi-sports mode wheel-leg mobile robot is proposed in this paper; Firstly, the serial mechanism model of one leg is constructed, and the method for constructing the kinematic model of the single leg mechanism is studied; Secondly, based on the study of the single leg mechanism, the kinematic model of the parallel mechanism of the multi-sports mode wheel-leg robot is further constructed when the robot is in the support state; Finally, based on the methods and theories discussed above, the experimental prototype mobile robot is constructed, so feasibility of the proposed method is verified.
CAD secondary development is to solve the problem of "personality". In this paper, A CAD System for EMU car-body design was developed based on Pro/Toolkit in Visual C++ Integrated Development Environment. The composition and functions of the system was introduced in details, then several key technologies to realize the function of the system were discussed, including Parametric EMU car-body model building technology based on TBS Database access technology based on Universal Classes Model preview technology based on OCX and Parameter-driven technology.
Based on the line-controlled chassis platform, the low-speed outer rotor motor is used to drive the wheel directly in the designed in-wheel motor line-controlled electric vehicle. The power system parameters of the designed four-wheel independent drive electric vehicle are matched and simulated by offline simulation. Firstly, based on the theoretical basis of the research on the parameter matching of the power system of pure electric vehicles, the type selection and parameter matching of the hub motor and power battery are carried out according to the established dynamic and economic indicators. Then, the designed component parameters are repeatedly corrected until the design goal is achieved; Finally, the vehicle model is built in AVL cruise, and the design results are simulated by software.
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