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The transplanter is the core structure of tobacco transplanting machine The working way applied offset-double disk and four-link rotation, for planting seedlings and floating seedlings. After the characteristic coefficient λ >; 1 is the essential condition for designing the transplanter and ensuring the normal operation of the transplanting quality. The values of the design parameters were determined...
China has adopted a push model of Freedom of Information (FOI) legislation that emphasizes proactive disclosure of government information. This differs from a pull model that stresses citizen-initiated access or reactive disclosure. The push model of FOI legislation, which has reduced the importance of access requests in China, grew out of its local causes. However, the degree of push or proactive...
To measure weft tension of a rapier loom exactly during weft insertion, this paper reasonably configures technological parameters for the rapier loom, adopts a weft tension test system composed of MC68332, main shaft rotation angle sensor, tension sensor, data acquisition chip and display to achieve real-time measurement of dynamic weft tension, elaborates the principle and design method of this tension...
In order to ensure the satisfactory winding and forming of roving and the stability of tension in the roving during spinning, aiming to the complexity of the mechanical drive system of roving frame, this paper proposes an intelligent control system for roving frame. Under the control of single-chip microcomputer, the motions of flyer, front roller and back roller, bobbins and rails of the roving frame...
SummaryAn organic-inorganic epoxy-silica-acrylate hybrid coating had been prepared by radical solution copolymerization and sol-gel process. The room curing reaction of the hybrid coating was discussed, and its structure, optical properties and thermal stability were studied. The hybrid coatings have multiple functional groups, and the inorganic phase and organic phase are linked by the chemical bonding...
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