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횡자속 선형전동기를 이용한 분기형 OHS 시스템에 관한 연구
박건우(Gun-Woo Park),이근선(Geun-Sun Lee),윤종보(Jong-Bo Yun),문인호(In-Ho Moon) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
본 논문은 LCD 생산라인의 물류 자동화 시스템 중 OHS(Over Head Shuttle)을 분기가 되도록 하여, 이송 효율을 높이고, 이송거리를 단축시키기 위한 선형 이송시스템 개발과 이에 가능한 영구자석 여자 횡자속 선형 전동기 개발에 관한 내용이다. 3차원 FEM 해석과 정특성 실험을 통해 전동기의 특성을 분석하여, 직선-곡선 레일과 분기구간에서 이송 가능한 횡자속 선형전동기 추진모듈의 사양을 결정하고, 분기 장치와 비접촉 전원 공급 장치를 포함한 이송시스템 시작품을 설계, 제작하여 OHS 시스템 등의 이송시스템에 적용 가능한지 그 타당성을 검토하였다.
대장암 환자에서 복막 전이에 의한 상장간막 동맥 증후군
방창석 ( Chang Seok Bang ),이순일 ( Soon Il Lee ),박건우 ( Geun Woo Park ),강하얀 ( Ha Yan Kang ),라성수 ( Sung Soo La ),공재환 ( Jae Hwan Kong ),강진모 ( Jin Mo Kang ) 대한내과학회 2009 대한내과학회지 Vol.76 No.3
Small bowel obstruction can develop from adhesions, hernias, and less frequently from tumors. Superior mesenteric artery (SMA) syndrome is an uncommon cause of small bowel obstruction. We experienced a case of SMA syndrome caused by peritoneal seeding from colon cancer. A 57-year-old woman presented with nausea, post-prandial vomiting, and weight loss. She had been receiving palliative chemotherapy for 12 months to treat colon cancer with peritoneal seeding. Abdominal computed tomography and a small bowel series revealed typical findings of SMA syndrome. As conservative treatment including nutritional support and positional change was ineffective, she was treated surgically. An adhesive mass compressing the SMA and duodenum was found at the third portion of the duodenum. The pathologic diagnosis was metastatic adenocarcinoma of colorectal origin. Adhesiolysis and duodenojejunostomy relieved her symptoms. This case shows that SMA syndrome can develop via peritoneal seeding in cancer patients. (Korean J Med 76:380-384, 2009)
턱걸이(Pull-up) 수행 시 숙련자와 비숙련자의 근육사용 차이에 관한 운동학적 연구
임동찬,임지환,박건우,박근표,이광수 순천향대학교 기초과학연구소 2022 순천향자연과학연구 논문집 Vol.28 No.1,2
This study was conducted to find out the difference in the use of latissimus dorsi muscle and forearm muscles between skilled and unskilled people when performing pull-up. The subjects of the study were one skilled in the department of sports science at Soon-chun-hyang University, one unskilled person who had no problems with the musculoskeletal system over the past year, and a total of two people who could do pull-ups more than 20 times. A total of one experiment was conducted, and two tests were conducted. The electromyogram data of the light back and forearm muscles were compared using a wireless electromyogram measurement device (EMG). As a result of the study, first, when performing pull-up, the unskilled person performed the movement with the strength of the forearm muscle rather than the light back muscle compared to the skilled person. Second, when performing pull-up, the skilled person showed similar use of force in both pull-up movements, and for non-skilled people, the activity of the forearm muscle in the second movement was significantly increased.
김성근,박건우,고태언 동의대학교 산업기술개발연구소 2001 産業技術硏究誌 Vol.15 No.-
In this paper, I-PD controller by nearal network is designed using variable structure controller. The I-PD control system is stable in the sense that the error is inside the constraint set, the variable structure controller is idle. If the error hits the boundary of constraint, the variable structure controller begins operation to force the error back to the constraint set. Applying this control technique to the position control system using a DC servo motor as a driver, the control performance of controller is verified by the results of computer simulation.
최용성,정철원,김정,박건우,서연림,박세훈,박근칠 대한내과학회 2004 대한내과학회지 Vol.66 No.6
저자 등은 하복부 통증으로 내원한 45세 여자 환자를 통해 난소의 낭성 기형종에서 발생한 원발성 악성 흑생종을 경험하였고, 추척 중에 발생한 이 환자의 다발성 전이를 수술 및 면역 화학 요법을 시행하여 치료 중인 증례를 이에 대한 문헌 고찰과 더불어 보고를 하는 바이다. Primary malignant melamona arising in a cystic teratoma of ovary is extremely rare. Approximately 25 cases of primary malignant melanoma arising from a cystic teratoma in ovary have been reported in the literature. The malignant transformation of benign cystic teratoma of ovary usually develops unilaterally in postmenopausal women. The common presenting symptoms are abdominal distention, lower abdominal pain and a palpable abdominal mass. We report a case of primary malignant melanoma of ovary in a 45 year-old patient who underwent laparotomy for evaluation of a cystic mass in right ovarian cystic teratoma. Histopathological examination of the cyst showed that it was melanoma with pre existed teratomatous components. Extraovarian primary site was not found. Nine years after the excision, brain metastases developed which were pathologically confirmed as metastatic melanoma. The patient subsequently developed pulmonary metastases and received immunochemotherappy consisting of cisplatin, dacarbazine, vinblastine, interleukin 2 and interferone α. She is on a regular follow-up and continues to have stable disease for 9 months.