Study of Key Common Technology Based on Twice Spiral Analysis System
Du-Hongwei, Yuguang Li · International Conference on E-Business and E-Government · 2012
Firstly, the definition of key common technology was given, data of heat treatment of steel industry were downloaded from Derwent World Patents Index. Secondly, we designed separate word and classify data system to distinguish, extract and choose characteristic words, to extract data texts which include characteristic words. 7KH system is combined with Cite space designed by Chen-Chaomei to GR co word analysLV. Through separate word and classify data system, 'Carbon' as key word of heat treatment is choosed. After analysed, key common technology of carbon is concentrated in two fields: study on anti-high temperature steel and nonoxidation decarbonization technology. Via experimental analysis, velocity and accuracy of analysis are in proved highly than just use Cite space to analyse data. The way in this paper could be use to study on key common technology.