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Takeuchi, Ryota,Watanabe, Taichi,Yamakawa, Soji Society for Computational Design and Engineering 2011 International Journal of CAD/CAM Vol.11 No.1
This paper proposes a new solid-shape modeling system based on a lusterware-image illustration. The proposed method reconstructs a three dimensional solid shape from a set of rough sketches that are typically drawn in the early stages of the design process. The sketches do not have to be strictly accurate, and this tolerance to the roughness of the input sketches is one of the major advantages of the proposed method. The proposed system creates an initial shape based on the silhouette of the input lusterware-images. Then the user can edit the initial shape with intuitive cutting and dishing-up operations, which are based on sketching user interface. To achieve the goal, the system retains the geometric model with two representations: a point-set data and a volume data. This dual data structure allows the program to create an initial shape from the input images with little computational cost, and the user can apply cutting and dishing-up operations without substantially increasing computational and memory requirements. In this research, we have tested the proposed system by reconstructing solid models of some mechanical parts from rough sketches. The experimental results indicate that the proposed method is useful for the prototyping of a solid shape.
Household Raw Garbage Processing Robot using Biomass
Yoshihiko TAKAHASHI,Yudai AGATA,Taichi WATANABE 제어로봇시스템학회 2021 제어로봇시스템학회 국제학술대회 논문집 Vol.2021 No.10
A processing robot has been developed that uses biomass to help turn kitchen waste into fertilizer, and spray it in fields. A four-wheel independent drive system using wide and soft tires was designed to enable stable movement. The direction of the robot is controlled by changing the rotation speed of the left and right tires. The tank containing the biomass was placed at the rear of the robot. It is equipped with a stirring mechanism to accelerate the reaction of the biomass and release it to the outside of the tank. The size of the robot is about 50cmx30cmx20cm, and the whole mechanical system is controlled by Raspberry Pi.