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In order to explore how to improve the aroma of geographical indications products in Yunnan-Pu’er Tea Using Electronic Nose System, the aroma components of Five-star Pu’er ripe tea of Fuyuanchang (2005 vintage) was defected, which treated by different High voltage Pulsed Electric Field (HPEF). And Principal Component Analysis (PCA), Linear Discriminant Analysis (LDA) and loadings analysis (Loading) were take on by Winmuster software, then combining response curve peak transuded comparison, the orthogonal test of the results from the experiment was done. The result proved that the content of aroma composition changed prominently after HPEF processing. The three kind of aroma component which include alcohol, organic sulfide and short-chain alkane increased significantly. In the condition of 18 kV/180 Hz/30 min, the three kinds of aroma composition increased the most and the average increase was 12.5%; and under the condition of 12kV/150Hz/45 min, the increase come secondly with the average of 11.1%. In addition, the other promoted condition of HPEF included 18 kV/120 Hz/60 min, 12 kV/120 Hz/60 min and 18 kV/120 Hz/30 min and the first condition was better than the others. The electric field voltage was the essential determinant which effected the content of aroma composition.

A lot of problems appear because that there are many differences between traditional welding process and industrial robot welding process, such as type selection of industrial robots, welding power configuration, and welding parameter adjustment, etc. On the basis of analyzing links in welding services of industrial robots, a platform of networked service in industrial robot welding was designed in this paper including its architecture structure, function structure, and database. The welding services and technical supports of industrial robots could be provided through this platform, such as type selection of industrial robots, welding power configuration, and welding parameter adjustment, etc. The results showed that the difficulty of industrial robot welding application was reduced by using this platform. And the quality of industrial robot welding was improved.

Laser cutting is widely used in the automotive industry. Customers with diversified and personalized requirements increase, small batch production is becoming a trend. Low cost robot flexible laser cutting came into being, but the positioning accuracy of the robot is not high. In some small holes processing it can't meet the accuracy requirements, which limited its application. A new cutting method is presented in this paper. The servo motor controlled by high precision motion controller which drive precision cross slide which drives the laser head to holes cutting. The results showed that the new method improved the accuracy and speed of the small hole laser cutting, and the whole system has a high flexibility, takes up less space.