http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
조재영,배상원,이정웅,윤석현,이진홍,정상돈,이의형 대한골절학회 1997 대한골절학회지 Vol.10 No.1
It has been controversial to decide the proper management for the comminuted fracture of the radial head. For the management of this fracture, there are various methods such as resection of radial head, insertion of radial head implant, and open reduction and internal fixation, etc. The resection of radial head which has been performed by the majority of surgeons, could bring several complications; chronic pain in the elbow, cubitus valgus, new bone formation at site of excision and proximal migration of the radius with late subluxation of the distal radioulnar joint. Therefore the importance of radial head has been recognized recently. Authors have had good results in 6 patients who undergone open reduction and internal fixation for severely comminuted fracture of the radial head.
자동차 조립공정 부품공급 작업자별 부하밸런스 평준화 알고리즘 연구
장정환,장청윤,전욱,조용철,김유성,배상돈,강두석,이재웅,이창호 대한안전경영과학회 2016 대한안전경영과학회지 Vol.18 No.4
The efficiency of the purchasing and procurement logistics is important in automotive industry. The rationalization of production system is directly impact on productivity and quality. For this reason importance of logistics is high. Despite we are continuously making effort, our country are still below the level than developed country on logistics efficiency. Rising labor costs is an important factor in increasing logistics costs. So workforce reduction in logistics department is a large part. We deal with A-company inbound logistics, especially procurement logistics in automotive logistics as research object. So in this study we do research on work load balance about workers. We do research on 1,475 kinds of components in procurement process. We applied work load balance algorithm on chassis, final, sequence, trim warehouses workers. According to number of workers and average M/H, algorithm is applied in two ways. After applied work load balance algorithm we reduced numbers of workers from 28 to 20 and improved worker load balance rate from 47.1% to 93.7%
MODAPTS 기반 자동차 조립공정 부품공급 공수 산정에 관한 연구
장정환,장청윤,전욱,조용철,김유성,배상돈,강두석,이재웅,이창호 대한안전경영과학회 2016 대한안전경영과학회지 Vol.18 No.3
Korean automobile industrial is in a difficult situation because of more competitive global market and lower demand. Therefore, domestic as well as global automobile manufacturers are making greater efforts in cost reduction to strengthen the competitiveness. According to statistical data, logistics cost in domestic manufacturers is higher than advanced countries. In this study, we developed program to effectively manage standard time of procurement logistics, and confirm based on A-automobile factory data. For the purpose, we develop the system which is possible to manage standard time as well as calculate man-hour. Program is not just for calculating and managing standard man-hour, scenarios analysis function will be added to calculate benefit while introduce logistics automated equipment. In this study we propose scenario using AGV instead of electric motor while move component. In the scenario analysis, job constitution is changed,and then we use system to compare the result. We can confirm standard man-hour is reduced from 22.3M/H to 14.3M/H. In future research, it is necessary scenario analysis function, and develop algorithm with realistic constraint condition.
이명철(Myung Chul Lee),정준기(June Key Chung),이영우(Young Woo Lee),서정돈(Jung Don Seo),박영배(Young Bae Park),이동수(Dong Soo Lee),김상은(Sang Eun Kim),최창운(Chang Woon Choi),이명묵(Myoung Mook Lee),고창순(Chang Soon Ko),배상균(Sa 대한핵의학회 1992 핵의학 분자영상 Vol.26 No.2
N/A Rest gated blood pool scan (Rest GBP scan) and dipyridamole Tc-99m-MIBI SPECT were performed in 34 patients with or suspected coronary artery disease. Both studies were performed within 2∼32 days (mean 8.1 days). A significant correlation was present between left ventricular ejection fraction (r=-0.7356, p〈0.001) and peak ejection rate and peak filling rate in rest GBP scan and perfusion defect in MIBI SPECT. And there were acceptable correlations (0.05〈p〈0.001) between regional ejection fractions and perfusion defects corresponding to the regions. There were 39 segments of fixed (rest) perfusion defects in MIBI SPECT and there was a significant difference in perfusion defect according to the regional wall motion (normal or mild hypokinesia in 23 regions: 26.2±10.8%, severe hypokinesia, akinesia or dyskinesia in 16 regions: 78.2±23.7, p〈0.001). These data indicate there is a significant coupling between the degree of myocardial perfusion and the myocardial functional change in coronary artery disease.
디피리다몰 부하 99mTc - MIBI 심근 SPECT 극성결손지도를 이용한 광동맥질환 진단의 남녀 비교
고창순(Chang Soon Koh),이명철(Myung Chul Lee),정준기(June Key Chung),이영우(Young Woo Lee),서정돈(Jung Don Seo),박영배(Young Bae Park),이동수(Dong Soo Lee),이명묵(Myoung Mook Lee),오병희(Byung Hee Oh),배상균(Sang Kyun Bae) 대한핵의학회 1993 핵의학 분자영상 Vol.27 No.1
N/A To evaluate the usefulness and differences in diagnosing coronary artery disease (CAD) between men and women of intravenous dipyridamole Tc-99m-MIBI myocardial SPECT, we obtained Tc-99m-MIBI myocardial SPECT and compared with the findings of coronary angiographies. Ninety eight male and 37 female patients who underwent dipyridamole Tc-99m- MIBI myocardial imaging within one month of cardiac catheterization were studied. Scans were considered abnormal if perfusion defect was detected and the defect size was more than 12% for left anterior descending artery (LAD) and circumflex(LCX) and 8% for right coronary artery (RCA) territories. Lesions≥50% luminal diameter narrowing were considered significant CAD. Overall sensitivity for detection of CAD was 94.3% in men and 96.4% in women; specificity was 70% in men and 52.6% in women (P=not significant, ns). Vessel-matched sensitivity was 75.3% in men and 72.7% in women (P=ns); specificity was 84.6% in men and 67.9% in women (P〈0.025). For individual coronary artery, the sensitivity in men and women was 87.7%, 81.8% for LAD; 78%, 83.3% for RCA and 52.2%, 46.7% for LCX (P=ns); the specificity was 80%, 40% for LAD (P〈0.01), 82.5%, 68.4% for RCA, 88.9%, 86.4% for LCX (P=ns). The hemodynamic parameter after intravenous dipyridamole in men and women were significantly changed; the heart rate was increased and systolic, diastolic blood pressure was decreased. Adverse effects were reported in 58.8% of men and 72.7% in women (P=ns). The incidence of chest pain and headache were higher in women. There was no significant difference in the incidences of nausea, abdominal pain, dizziness, facial flushing, dyspnea. In conclusion, dipyridamole Tc-99m-MIBI myocardial SPECT is a safe, noninvasive test for evaluation of CAD. There was no gender difference to detect CAD, but more false-positive rate in women especially in the territory of LAD.
Infectious Complications after Prostate Biopsy: A Prospective Multicenter Prostate Biopsy Study
황의창,유호송,정승일,권동득,이선주,김태형,장인호,윤하나,심봉석,김광현,이동현,허정식,임동훈,조원진,민승기,이길호,김기호,김태환,이서연,양승옥,정재민,이상돈,한창희,배상락,최현섭,이승주,정홍,나용길,양승우,박성운,김영호,김태효,조원열,한준현,조용현,하유신,박흥재,대한요로생식기감염학회 대한요로생식기감염학회 2016 Urogenital Tract Infection Vol.11 No.1
Purpose: Recent studies have highlighted an increasing trend of infectious complications due to fluoroquinolone-resistant organisms among men undergoing transrectal prostate biopsy. This study evaluated the current incidence of infective complications after trans-rectal prostate biopsy for identification of risk factors in Korean men who received fluoroquinolone prophylaxis.Materials and Methods: A prospective, multicenter study was conducted in Korea from January to December 2015. Prostate biopsies performed with fluoroqui-nolone prophylaxis during 3 months in each center were included. A pre-biopsy questionnaire was used for identification of patient characteristics. Clinical variables including underlying disease, antibiotic prophylaxis, enema, povidone- iodine cleansing of the rectum, and infectious complications were evaluated. The primary outcome was the post-biopsy infection rate after fluoroquinolone prophylaxis. Univariable and multivariable analyses were used for identification of risk factors for infectious complications.Results: The study included 827 patients, of whom 93 patients (11.2%) reported receiving antibiotics in the previous 6 months and 2.5% had a history of prostatitis. The infectious complication rate was 2.2%. Post-biopsy sepsis was reported in 2 patients (0.2%). In multivariable analysis predictors of post-biopsy sepsis included person performing biopsy (adjusted odds ratio [OR], 4.05; 95% confidence interval [CI], 1.31-12.5; p=0.015) and operation history within 6 months (adjusted OR, 5.65; 95% CI, 1.74-18.2; p=0.004).Conclusions: The post-prostate biopsy infectious complication rate in this study was 2.2%. Person performing biopsy (non-urologists) and recent operation history were independent risk factors for infectious complications after trans-rectal prostate biopsy.