Knowledge sharing is an essential characteristic of knowledge network and knowledge recommendation is a good way to improve the quality of shared knowledge. To investigate more efficient knowledge recommendation algorithm, knowledge potential energy rank and interest measure of knowledge were added in the association rules. Augmentation and quantization of the two parameters is the most important innovation of the paper. There were three modules in the algorithm-mining knowledge association rules, recommending related knowledge and modifying knowledge rank. Examination process provided by coal-wz.com was used to verify the proposed approach. The results showed that the proposed approach not only is able to extract the rules more efficient and much faster, but also can discover association rules more accurate in the context of knowledge management in knowledge network

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Objective. The aim of this study was to investigate the efficacy and safety of bladder flap ureteroplasty (psoas hitch) in the treatment of lower ureteral injuries and strictures. Methods. 19 patients with lower ureteral injuries and strictures scheduled for a bladder flap ureteroplasty (psoas hitch) in our hospital from January 2020 to January 2021 were recruited. The outcome measures included treatment efficacy and safety. Results. The operative time, intraoperative bleeding, catheter extubation time, hospital stay, extubation time of ureteral stent, and follow-up time were (125.36 ± 15.38) min, (75.37 ± 11.09) ml, (7.25 ± 1.04) d, (8.76 ± 1.11) d, (46.34 ± 7.66) d, and(19.27 ± 1.27) months, respectively. No serious perioperative adverse reactions were observed, and all the symptoms of patients were relieved. Conclusion. Bladder flap ureteroplasty (psoas hitch) is safe and effective for the treatment of lower ureteral injuries, with advantages such as less intraoperative bleeding and trauma and rapid recovery, so it is worthy of promotion. This was a retrospective study supervised by the Ethics Committee of Hebei Yanda Hospital.This trial is registered with no. hebYD076.

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