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The aim of the current study was to investigate the correlation of cancer-associated fibroblasts (CAFs) with the migration and invasion abilities of gastric cancer cells. Gastric CAFs were grown in primary cultures. The in vitro model of interaction of SGC7901 gastric cancer cells with gastric CAFs was established by the use of Transwell co-culture cells to(More)
The key problem of rotor flux orientation control of bearingless induction motor is the estimation of rotor flux. Aiming at the problem that the estimation precision of rotor flux based on traditional flux estimator is influenced by the variation of stator or rotor resistance, a new estimation method based on the stator current vector orientation is(More)
The feature modeling which is used for evaluating the management software's adaptability to its flexibility requirements is one of the most important issues in general ERP system development. First, this paper puts forward the construction process of general enterprise resource plan system's feature model by summarizing domain analysis and feature modeling(More)
The negotiation process is analyzed according to the different stages of the whole operation process of High-tech Virtual Enterprise (HTVE). The negotiation problems are divided into three categories by three main attributes: nature, stage and whether they are indicators. By using forward inference combine with natural language processing and calling(More)
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