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Lee Min Wan,박성실,You Kiho,Lee Dong-eun,Lee Dong Woon,Park Sung-Chan,Han Kyung Su,Sohn Dae Kyung,Hong Chang Won,Kim Bun,Kim Byung Chang,Chang Hee Jin,김대용,오재환 대한대장항문학회 2024 Annals of Coloproctolgy Vol.40 No.1
Purpose: This study aimed to evaluate the long-term clinical outcomes based on the ligation level of the inferior mesenteric artery (IMA) in patients with rectal cancer.Methods: This was a retrospective analysis of a prospectively collected database that included all patients who underwent elective low anterior resection for rectal cancer between January 2013 and December 2019. The clinical outcomes included oncological outcomes, postoperative complications, and functional outcomes. The oncological outcomes included overall survival (OS) and relapse-free survival (RFS). The functional outcomes, including defecatory and urogenital functions, were analyzed using the Fecal Incontinence Severity Index, International Prostate Symptom Score, and International Index of Erectile Function questionnaires.Results: In total, 545 patients were included in the analysis. Of these, 244 patients underwent high ligation (HL), whereas 301 underwent low ligation (LL). The tumor size was larger in the HL group than in the LL group. The number of harvested lymph nodes (LNs) was higher in the HL group than in the LL group. There were no significant differences in complication rates and recurrence patterns between the groups. There were no significant differences in 5-year RFS and OS between the groups. Cox regression analysis revealed that the ligation level (HL vs. LL) was not a significant risk factor for oncological outcomes. Regarding functional outcomes, the LL group showed a significant recovery in defecatory function 1 year postoperatively compared with the HL group.Conclusion: LL with LNs dissection around the root of the IMA might not affect the oncologic outcomes comparing to HL; however, it has minimal benefit for defecatory function.
김기태(Kitae Kim),안주현(Juhyun An),김기호(Kiho Kim),이인남(Innam Lee),유관호(Kwanho You) 한국자동차공학회 2013 한국자동차공학회 지부 학술대회 논문집 Vol.2013 No.5-2
As an advanced safety system is a key point of smart car in automotive field, autonomous parallel parking system is widely studied to improve the convenience of inexperienced drivers who have a difficulty in parking properly. In this paper, we present an incremental sliding-mode fuzzy logic controller(ISMFLC), which is a sliding-mode controller using different fuzzy rules subject to each different situation. We also adapt unscented Kalman filter(UKF) to compensate for a sensor noise by unscented transformation. In order to compare an performance of ISMFLC and UKF, simulations have been provided. The simulation results confirm the advanced parallel parking accuracy and the safety obtained by using the proposed algorithms.