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장왕진(Wang Jin Jang),박종식(Jong Sik Park),정재영(Jae Young Jeong),예수해(Soo He Ye),이성범(Seong Beom Lee) 한국자동차공학회 2007 한국자동차공학회 지부 학술대회 논문집 Vol.- No.-
Seat belt is one of the most important parts in an automobile. Seat belt consists of retractor, D-ring, buckle, anchorage. Retractor is the major part which controls spool-in or out of webbing according to acceleration pulse in seat belt. From energy efficiency and environmental point of view lighter weight car becomes hot issue in the automobile industry. In this paper, light weight study of spool was performed by 3D scanning equipment and finite element analysis. Scanning data was converted into IGES file and then improve accuracy in comparison with three dimension model. Spool is made from Al alloy. So, we implemented structural analysis of spool's material. Mg alloy is lighter than Al alloy. But analysis result showed that Al alloy and Mg alloy's stress value is close. Al alloy is increasingly being replaced with Mg alloy and this usage is expected to increase substantially.
동종말초조혈모세포이식 후 발생한 BK 바이러스 출혈성 방광염의 Cidofovir 방광 내 주입 치험 1례
강성훈,이화정,장예수,지준호,이선아,이원식,이정림,이경희 영남대학교 의과대학 2009 Yeungnam University Journal of Medicine Vol.26 No.2
Hemorrhagic cystitis (HC) is a common complication after allogeneic transplantation. Early posttransplant HC occurs in association with cyclophosphamide, while later on HC results from viral infections such as polyomavirus BK (BKV) and adenovirus. We report here the case of a 57-year-old woman who received an instillation of cidofovir into the bladder for the treatment of hemorrhagic cystitis after allogeneic peripheral stem cell transplantation for her acute myeloid leukemia. Cyclophosphamide and busulfan were used as conditioning treatments. Cyclosporin was administered daily. On the 71st day after transplantation, the patient developed acute severe hemorrhagic cystitis, and BK virus was demonstrated in the urine samples using polymerase chain reaction. Her urinary symptoms did not improve in spite of palliative treatment, but a response was evident after intravesical cidofovir treatment.
한창용(Chang Yong Han),장왕진(Wang Jin Jang),이성범(Seong Beom Lee),예수해(Soo He Ye) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
A vehicle demand is gradually increasing. Interest of people is increasingly taking a safety system to keep for life in a clash or collision accident of vehicle. Seat belts are designed to keep the vehicle passengers firmly in place during a collision or other traffic accidents. Seat belt system consists of mainly four restraining parts: D-ring, buckle, anchorage, and retractor. Retractor is the major part which controls spool-in or out of webbing according to acceleration pulse in seat belt. Currently, spool of automotive seat belt is made of Al-alloy because of light weight. In this paper, we performed solid model of spool by 3D scanner. Moreover, we performed finite element analysis of optimized spool which was under various load between webbing and spool. It is confirmed that the result values of structural analysis. In conclusion, we obtained optimized shape of automotive spool. And, we also predict fractural of spool.
Helicobacter pylori 제균 치료 이후 소실된 Russell 소체 위염 1예
이기조,임원,김광하,장예수,이재형,송근암 대한상부위장관ㆍ헬리코박터학회 2017 Korean Journal of Helicobacter Upper Gastrointesti Vol.17 No.2
A rare gastric mucosal lesion characterized by Russell body-containing plasma cell infiltration is termed as Russell body gastritis. This lesion is highly suggested to be correlated with Helicobacter pylori-induced chronic gastritis, and often misdiagnosed as mucosa-associated lymphoid tissue lymphoma, signet ring cell carcinoma, plasmacytoma, or xanthoma. However, Russell body gastritisis easily discriminated by its polyclonal immunoreaction to immunoglobulin light chains contrary to monoclonal immunoreactionof neoplastic disease. We report here a case of Russell body gastritis associated with H. pylori infection, which disappeared after H. pylori eradication
지역사회획득폐렴 환자의 중증도 평가에서 Procalcitonin 유용성
박훈표 ( Hun Pyo Park ),이정수 ( Jung Soo Lee ),장예수 ( Ye Su Jang ),김민수 ( Min Su Kim ) 대한결핵 및 호흡기학회 2009 Tuberculosis and Respiratory Diseases Vol.67 No.5
Background: Thus far, research studies on community-acquired pneumonia (CAP) have focused on its clinical severity. Recently, it has been determined that procalcitonin (PCT) level is correlated with severity of CAP. A retrospective study conducted at our hospital used risk predictability and PCT to determine whether or no PCT is useful in assessing the severity of CAP. Methods: This study covered 92 CAP cases that were admitted to the respiratory department at Changwon Fatima Hospital between July 1, 2008 and June 30, 2009. All enrolled subjects were measured for infection markers and risk predictability. Results: Based on hospital admission data, enrolled subjects had Pneumonia Severity Index (PSI) scores serving as risk predictors showed that both PCT and white blood cell (WBC) were statistically significant as infection markers (p=0.001, 0.037). Thus, this study used ROC curves in PSI for data analysis. As a result, it was determined that the area under curve (AUC) of PCT and WBC was 0.694 and 0.593 respectively, indicating that PCT has a higher test value for WBC, when PCT was higher than 0.745 ng/mL. In addition, it was found that PCT levels higher than 0.745 ng/mL had higher PSI scores than the group with PCT lower than 0.745 ng/mL (p=0.032). Conclusion: In order to predict risk of pneumonia cases admitted due to symptoms of CAP, it is important to consider PCT as well as PSI, and follow-up monitoring of PCT cases.
급성췌장염의 합병증으로 발생한 급성신부전의 복막투석 치료경험 1예
서혜진 ( Hye Jin Seo ),최희정 ( Hee Jeong Choi ),장예수 ( Ye Soo Jang ),윤영득 ( Young Deuk Youn ),김현수 ( Hyun Soo Kim ),이덕현 ( Duk Hyun Lee ),김성호 ( Sung Ho Kim ) 대한내과학회 2008 대한내과학회지 Vol.74 No.4
The mortality of acute pancreatitis complicated by acute renal failure (ARF) remains high. Among several therapeutic modalities, peritoneal dialysis (PD) has advantages due to its ability to remove toxic materials in the peritoneal exudate as well as urotoxic substances in the blood. We report successful treatment with PD in a patient with acute pancreatitis and ARF. A 41-year-old heavy drinker was admitted due to acute pancreatitis complicated by ARF. A therapeutic plan of PD was designed. A Tenckhoff PD catheter was used, considering its lower potential for infection compared to conventional catheters. The frequency of PD was set at 8 times per day, considering the catabolic state in pancreatitis. The clinical symptoms and biochemical parameters showed remarkable improvement during the follow-up period. In conclusion, PD is one of the effective treatment modalities for treating ARF in patients with pancreatitis.(Korean J Med 74:430-434, 2008)