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임종철,오승민,Im, Jong-Cheol,O, Seung-Min 한국섬유공학회 1998 한국섬유공학회지 Vol.35 No.2
Conventional manufacturing process for PVC fiber was wet spinning. This study introduced a melt spinning process to spin PVC polymer, and two different drawing methods were investigated: wet-drawing and dry-drawing. The PVC fiber produced by the dry-drawing method showed superior tensile properties to that produced by the wet-spinning method. The effects of spinning speed and draw ratio on the fiber properties were also investigated.
신종승 ( Sin Jong Seung ),김세광 ( Kim Se Gwang ),박기현 ( Park Gi Hyeon ),배상욱 ( Bae Sang Ug ),임종철 ( Im Jong Cheol ),안은희 ( An Eun Hui ),허은하 ( Heo Eun Ha ),안정미 ( An Jeong Mi ),남은지 ( Nam Eun Ji ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.11
Abdominal pregnancy is a very rare case consisting 1% of ectopic pregnancy and occurring once in 372-9714 of normal pregnancies. However, the possibility of massive bleeding which is a main cause of maternal death can lead to the death rate of 5.1 in ever
박이근(Park I Geun),임종철(Im Jong Cheol) 한국지반공학회 2004 한국지반공학회논문집 Vol.20 No.3
In case of tunnel construction with a shallow soil cover in cohesionless soils or highly weathered rocks, reinforcement measures are required for a tunnel stability during the tunnel construction. Recent developments show that the use of Umbrella Arch Method(UAM) as tunnel reinforcement and water cut-off in domestic projects has increased. Unfortunately, guidelines for the design and construction of UAM have not h n established, only empirical designs and applications in tunnel construction have been performed so fm. In this study, behaviour of the steel pipes installed on the tunnel roof was analyzed through the monitoring of bending and axial stresses of the pipes with the advance of the tunnel face. The monitoring results were used in the establishment of the loading mechanism around the pipe. This paper suggests, the guidelines used in the determination of the total length, overlapping length and lateral spacing of the reinforcing pipes obtained from the established loading mechanism.
태아 복부 고형 종양 (solid tumor)의 영상 진단
김의혁 ( Kim Ui Hyeog ),안은희 ( An Eun Hui ),임종철 ( Im Jong Cheol ),노진래 ( No Jin Lae ),조재성 ( Jo Jae Seong ),박용원 ( Park Yong Won ),김명준 ( Kim Myeong Jun ) 대한산부인과학회 2004 Obstetrics & Gynecology Science Vol.47 No.5
Objective : Ultrasonography is screening modality of choice and plays an important role in prenatal diagnosis of various diseases and neoplasm of fetus. Recently, Magnetic Resonance Imaging was used as a diagnosis tool to fetal disease. We would like to evaluate efficacy of ultrasonography and magnetic resonance imaging for the diagnosis of fetal abdominal solid tumor. Methods : Among 2,055 cases of abnormal ultrasonography findings detected by prenatal ultrasonography from January 1996 and June 2002, a comparison between the diagnosis made by prenatal ultrasonography, fetal magnetic resonance imaging (MRI), postnatal radiological studies and histopathologic studies was made in four cases with fetal abdominal solid tumor. Results : The first case was diagnosed as adrenal tumor or hepatic tumor by US, hemangioedothelioma of liver by fetal MRI, and confirmed as hemangioedothelioma postnatally. The second case showed concordance with mesoblastic nephroma among the diagnosis made by US, fetal MRI, and postnatal histopathologic studies. The third case was diagnosed as extrathoracic pulmonary sequestration by US and MRI, and the same diagnosis was made by postnatal histopathologic studies. The fourth case was suspected as kidney tumor by US and was diagnosed as adrenal as adrenal neuroblastoma postoperatively. Conclusion : Fetal solid tumor is not a common disorder, but the location, size and orgin of tumor plays important role in the prognosis of neonatal period; additional workup by fetal MRI would improve the diagnosis of such tumors.
Cathepsin D의 발현이 비소세포 폐암의 예후에 미치는 영향
염형렬 ( Yeom Hyeong Lyeol ),명재일 ( Myeong Jae Il ),임종철 ( Im Jong Cheol ),김한균 ( Kim Han Gyun ),이남훈 ( Lee Nam Hun ),이대호 ( Lee Dae Ho ),고향미 ( Go Hyang Mi ),문종영 ( Mun Jong Yeong ),강헌석 ( Kang Heon Seog ),류형선 대한결핵 및 호흡기학회 2000 Tuberculosis and Respiratory Diseases Vol.49 No.1
비호발 부위에 발생한 수활액낭종 (cystic hygroma)의 산전 초음파 검사
조정미 ( Jo Jeong Mi ),안은희 ( An Eun Hui ),임종철 ( Im Jong Cheol ),조재성 ( Jo Jae Seong ),박용원 ( Park Yong Won ) 대한산부인과학회 2004 Obstetrics & Gynecology Science Vol.47 No.5
Among 2,055 cases of abnormal findings detected by prenatal ultrasonography at Yonsei University College of Medicine from January 1996 to June 2002, the incidence and the site of cystic hygroma were evaluated. The clinical courses and postnatal prognosis were studied in four cases with cystic hygroma developed in unusual sites. Among 2,055 cases of abnormal ultrasonographic findings, 76 cases (3.70%) were diagnosed as cystic hygroma. Among 76 cases of cystic hygroma, 4 cases (5.3%) were detected in unusual sites; 1 case in mediastinum, 1 right axillary area, and 2 in anterolateral portion of neck. In cystic hygroma, prenatal accurate ultrasonographic findings including size and site of mass are important. Cystic hygroma developed in unusual sites are associated with perinatal complications including airway obstruction and compression of the surrounding organs. In giant cystic hygroma, cesarean section should be considered to avoid trauma and birth injury. After delivery, close observation and proper management are required.