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Due to the universal problems of the cotton seed quality, the traceability management system for the cotton seed quality and safety based on RFID is described in this article, which uses RFID technology as the basic technical means. Each RFID tag is affixed to the package of cotton seeds. The information of cotton seed is written into the RFID tag. The RFID tags are used to trace the entire of the cotton seed, which guarantees the authenticity and reliability of the cotton seed information and ensures the quality and safety of cotton products. The system is developed through the Visual Studio 2010 as the development environment, and SQL Server 2008 is employed to develop the database.

A laboratory model test of tunnel anchor was conducted to investigate its pullout mechanism and bearing capacity. Surface and rock deformation, strain and stress were measured during the entire model test process. The results show that: under pull out load, tensile failure first occurs in top surface rock near the anchor, then shear failure occurs in anchor-rock interface and rock around the anchor. The failure surface is inverted cone from the anchor bottom. Under 50 times design cable force tunnel rock is in elastic stage, suggesting that current tunnel anchor design is quite conservative and can be further optimized.