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In this paper, a novel 5-phase double-sided C-core modular linear permanent-magnet synchronous machine (MLPMSM) used for the linear steering engine is researched. Firstly, the structure of the MLPMSM is depicted. Then the thrust produced by one module and the total thrust force of the machine are deduced and analyzed. In the ideal condition, all the harmonics in the thrust force can be eliminated...
In this paper, we propose a novel active contour model for image segmentation integrating the local and global intensity information into the geodesic model. A signed pressure forces function based on the statistical information of gray intensity is used to replace the edge stopping function in the traditional geodesic model. The minimization of the energy of contour is implemented by level set method...
Litchi fruit flexible mechanical picking could reduce the loss of fresh fruit, which is the development direction of intelligent mechanized harvesting in future agriculture. According to the agronomic planting of litchi, this paper analyzed its fruit picking requirements, studied the structure of the manipulator's end effector flexible picking and its dynamic transfer, built the structure model of...
Based on reference literature, this paper use DEA Malmquist technology to establish the total factor index model considered the variable returns to scale for evaluating carbon emissions performance and analyzed the results. And then, based on the STIRPAT equation, the paper used provincial panel data to test the main factors of carbon emissions performance in China. All the results showed that: In...
The deformation of the cantilever caused by manipulation force is one of the most major nonlinearities and uncertainties during manipulation. It causes difficulties in precisely controlling the tip position, which will cause the tip to miss the position of the object. In order to solve this problem, in this paper, the dynamics model of piezoelectric smart cantilever beam based on ionic polymer metal...
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