The Hg2+ fluorescence sensor based on TdT isothermal amplification DNA templated CuNCs was successfully constructed.

Reverse Engineering (RE) and Rapid Prototyping (RP) were used for manufacturing cream bottle. Points cloud data of cream bottle was accessed by handheld laser scanner firstly. Then, points cloud data was handed by Imageware software and the three-dimensional model was formed by Solidworks software. Finally, the entity model was manufacturing by RP machine. In the research, rapid prototyping was combined with reverse engineering technology, manufacturing cycle was shorten, production requirements, improve efficiency and other advantages were met.

Bioleaching experiments were used in this experiment to study the interaction between marmatite and chalcopyrite. In the sterile system, the copper extraction rate of single chalcopyrite was only 20%, much lower than the copper extraction rate of L. ferriphilum system, which is 95%. The addition of L. ferriphilum can improve the copper extraction rate to a substantial level. In both the sterile and L. ferriphilum system, the single chalcopyrite got a higher copper extraction rate than the mixture minerals of chalcopyrite and marmatite, and with the increase of marmatite, the copper extraction rate decreased. So marmatite may inhibit the dissolution of chalcopyrite. The reason may be that the redox potential of mixture mineral was not in the optimum range.

TGZ10A-40.5 wall bushing of high voltage switch cabinet from one company was taken as applied research object. Reference the development process of high voltage cable shielding technology, three samples were designed and produced depending on different sets of the shield system. The result show that: surfaces processed by the way that the inner (aluminum cylinder) and the outer (metal mesh ring) shielding components were coated with a semi-conductive material, made little sense to improve the withstand voltage level and reduce the partial discharge; surface processed by the way that inner shield component (aluminum cylinder) was coated with semi-conductive material, the outer shield component (metal mesh ring) was not coated with semi-conductive material, was obviously influenced the improvement of the withstand voltage level and reduction of the partial discharge, compared with traditional technology, the average start voltage of corona increased 23.8%, the average value of partial discharge dropped 27.7%.

In order to further improve the operation reliability of substation site equipment, abnormal sound online monitoring and positioning system for substation equipment was designed. This system consists of on-site monitoring unit, system server and client three parts. Three key technologies were researched and developed: substation abnormal sound automatic identification technology, substation abnormal sound video positioning technology and substation abnormal sound message warning system technology. Abnormal sound online monitoring and positioning system for substation equipment has reasonable structure and good results.