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만성 골수성 백혈병 경과 중에 발생한 말초 T 세포림프종 1 예
임충현(Chung Hyun Lim),김지현(Ji Hyun Kim),김선임(Sun Im Kim),정은주(Eun Ju Chung),윤범(Beom Yun),김응주(Eung Joo Kim),조혜제(Hye Jae Cho),유영진(Young Jin Yuh),김성록(Sung Rok Kim) 대한내과학회 2001 대한내과학회지 Vol.61 No.4
Lymphoid malignancies have been reported in association with chronic myelogenous leukemia, but the development of chronic myelogenous leukemia and T-cell lymphoma in the same patients is rare. We experienced a case of peripheral T-cell lymphoma developed in the course of chronic myelogenous leukemia. In December 1993, a diagnosis of chronic myelogenous leukemia was made. The patient was treated with hydroxyurea and busulphan. In June 1999, the patient was admitted because of a swelling in right submandibular area and throat pain. He underwent right tonsilectomy. The histologic and immunologic examination of tonsil revealed a peripheral T-cell lymphoma. This case is additional one to a few previously reported cases of concurrence of chronic myelogenous leukemia and T-cell lymphoma. (Korean J Med 61:444-448, 2001)
저온 공정에 의한 a-Si:H/c-Si 이종접합 태양전지 제조 및 동작특성 분석
임충현(Lim, Chung-Hyun),이정철(Lee, Jeong-Chul),전상원(Jeon, Sang-Won),김상균(Kim, Sang-Kyun),김석기(Kim, Seok-Ki),김동섭(Kim, Dong-Seop),양수미(Yang, Sumi),강희복(Kang, Hee-Bok),이보영(Lee, Bo-young),송진수(Song, Jinsoo),윤경훈(Yoon 한국신재생에너지학회 2005 한국신재생에너지학회 학술대회논문집 Vol.2005 No.06
In this work, we investigated simple Aㅣ/TCO/a-Si:H(n)/c-Si(p)/Al hetero-junction solar cells prepared by low temperature processes, unlike conventional thermal diffused c-Si solar cells. a-Si:H/c-Si hetero-junction solar cells are processed by low temperature deposition of n-type hydrogenated amorphous silicon (a-Si:H) films by plasma-enhanced chemical vapor deposition on textured and flat p-type silicon substrate. A detailed investigation was carried out to acquire optimization and compatibility of amorphous layer, TCO (ZnO:Al) layer depositions by changing the plasma process parameters. As front TCO and back contact, ZnO:Al and AI were deposited by rf magnetron sputtering and e-beam evaporation, respectively. The photovoltaic conversion efficiency under AMI.5 and the quantum efficiency on 1cm² sample have been reported. An efficiency of 12.5% is achieved on hetero-structure solar cells based on p-type crystalline silicon.
IT 융합을 통한 3D 지리 교구 제작과 증강현실 앱 개발
임충현(Chunghyun Lim),김명진(Myeongjin Kim),신철민(Chulmin Shin),김성백(Seong Baeg Kim),김태호(Taeho Kim) 인문사회과학기술융합학회 2018 예술인문사회융합멀티미디어논문지 Vol.8 No.3
최근에 4차 산업혁명이 도래함에 따라 제반 분야에서 변화가 일어나고 있다. 교육 분야에서도 이 러한 시대 흐름에 맞춰 IT 융합 접근을 통해 교육 방법이나 교육 내용의 변화를 시도하고 있다. 과거 에 비해 현재의 학습자들은 디지털 환경에 매우 익숙하다. 학습자들의 이러한 특성을 반영하여 교육 이 이루어져야 한다. 본 연구에서는 3D 프린팅 기술과 증강 현실 기법을 지리 교육에 접목하고자 한 다. 직접 접근하기 어려운 지형이나 지리적으로 멀리 떨어진 곳의 경우 접근성이 떨어져 지리 교육에 어려움이 따른다. 이를 효과적으로 해결하기 위해 본 연구에서는 학습하고자 하는 지형에 대해 3D 프린터를 통한 3D 교구를 제작하고 이와 연동한 증강현실 앱을 개발하였다. 구체적으로, 123 Design 도구를 이용하여 3D 프린터로 해안 지형을 제작하였다. 또한, 제작한 해안 지형 3D 교구와 연동하여 동작하는 증강 현실 앱을 유니티를 이용하여 개발하였다. 이를 통해 실제 답사하는 효과를 가져 올 수 있고, 학습자의 흥미를 유발할 수 있으며, 학습내용을 쉽게 이해하는데 도움을 주어 결과적으로 학업성취도를 높일 수 있다. Recently, as the fourth industrial revolution comes up, changes are taking place in all fields. Also, in the field of education, to meet the trend of the times, the change of educational methods or contents through IT convergence approach has been examined. Compared to the past, current learners are very familiar with the digital environment. Education should be done to reflect these characteristics of learners. In this study, 3D printing and augmented reality techniques are applied to geography education. In case of the terrain that is impossible to access or where is located in a remote distance, there is difficulty in doing geography education because of inaccessibility. In order to solve this problem effectively, we made a 3D teaching aid using 3D printer for the terrain to learn and developed an augmented reality app. Specifically, we made the teaching aid of a coastal terrain using 123 Design tool. Also, we developed the augmented reality app using Unity game engine, which can be synchronized with the coastal terrain 3D teaching aid. This can lead to the effect almost equivalent to realistic exploration, draw interest of learner, and help to bring easy understanding of learning contents, resulting in higher academic achievement.
급성 심근염과 파종성 혈관내 응고장애 및 횡문근 융해증에 의한 급성 신부전이 합병된 Influenza A Virus 감염증 1예
정은주,임충현,김응주,김선임,윤범,한성훈,박원도 인제대학교 2001 仁濟醫學 Vol.22 No.1
A 24-year-old woman, who had been well until 1 week ago before admission, was hospitalized with nausea, vomiting, and diarrhea. The clinical features and laboratory findings showed acute renal failure, due to rhabdomyolysis and disseminated intravascular coagulopathy(DIC), and acute myocarditis. The patient was diagnosed as influenza A viral infection with multiple complications. Influenza viral infection can cause viral and bacterial pneumonia and occasionally cause acute renal failure associated with rhabdomyolysis. Whereas, myocarditis associated with influenza viral infec tion is so rare. Then we report a case of influenza A viral infection complicated with acute myocarditis, DIC and rhabdomyolysis induced acute renal failure.
hCG 및 hMG 투여에 의한 특발성 시상하부성 성선기능부전증 남자의 정자형성 및 배우자의 임신 유도
김선임,임충현,정은주,윤범,박재홍,조문숙,고경수,이병두 인제대학교 백병원 2001 仁濟醫學 Vol.22 No.2
It is well known that in men with secondary hypogonadism spermatogenesis and fertility can be induced by gonadotropin or gonatotrpin-releasing hormone(GnRH) therapy. In hypogonadotropic hypogonadism(IHH) or Kallmann syndrome pulsatile GnRH or gonadotropins can be used alternatively. Clinical experience of hCG/hMG therapy for a case of male intertility in idiopathic hypogonadotrophic hypogonadism, serum levels of LH. FSH. testosterone and semen analysis, testes size were measured before therapy. Treatment was combination of intramuscular doses of 2000IU hCG applied three times a week and 75IU hMG applied three times a week. During the course of treatment control examinations were performed every one months. After 19 months of therapy the female partner was pregnancied and present, his daughter's growth and development were good.
Pulmonary Oncocytic Carcinoid 수술 시험 1례
배철영,김동원,임충현,이혁표,최수전,김정숙,김정연,조혜제 대한흉부심장혈관외과학회 2001 Journal of Chest Surgery (J Chest Surg) Vol.34 No.2
Oncocytic carcinoid는 매우 드문 종양으로 단지 몇 례만이 문헌상 보고되고 있다. 본 저자들은 좌폐 상엽에 발생한 oncocytic carcinoid 1례를 치험하였는데 환자는 56세된 여자환로 특이한 증상은 없었다. 흉부 전산화 단층촬영상 좌폐상엽에 3$\times$3.5 cm 크기의 동종의 종괴를 보이고 있었다. 수술전 검사후 외과적절제술을 시행하였는데 육안적소견상 4$\times$3cm 크기의 경계가 명확한 황갈색의 종괴였으며, 병리조직학적 검사상 괴립성 호산성 세포질이 풍부한 양상을 보였으며 면역조직학적 검사에서는 cytokeratin에 양성반응을 보였으며 EMA와 chromograin에 국소적인 양성반응을 보여, 폐에 발생한 oncocytic carcinoid로 진단하였다. 수술후 환자의 상태는 양호하였으며, 현재 외래추적관찰중이다.
고품질 실리콘 박막을 이용한 저가 고효율 실리콘 박막 및 a-Si:H/c-Si 이종접합 태양전지 개발
이정철(Lee, Jeong-Chul),임충현(Lim, Chung-Hyun),안세진(Ahn, Sae-Jin),윤재호(Yun, Jae-Ho),김석기(Kim, Seok-Ki),김동섭(Kim, Dong-Seop),양수미(Yang, Sumi),강희복(Kang, Hee-Bok),이보영(Lee, Bo-young),이준신(Yi, Junsij),송진수(Son, Jinsoo 한국신재생에너지학회 2005 한국신재생에너지학회 학술대회논문집 Vol.2005 No.06
In this paper, silicon thin-film solar cells(Si- TFSC) and a-Si/c-Si heterojunction solar cells(HJ-cell) are investigated. The Si-TFSC was prepared on glass substrate by depositing 1-3{mu}m thin-film silicons by glow discharge method. The a-Si:H/{mu}c-Si:H tandem solar cells on textured ZnO:A1 TCO (transparent conducting oxide) showed improved Jsc in top and bottom cells than that on SnO₂:F TCO. This enhancement of jsc resulted from improved light trapping effect by front textured ZnO:A1. The a-Si/c-Si HJ-cells with simple structure without high efficiency features are suffering from low Voc and Jsc. The improvement of front nip and back interface properties by adopting high quality silicon-films at low temperature should be done both for increasing device performances and production cost.
의식 변화를 주소로 응급실에 내원한 당뇨병 환자의 임상적 특성
최대식,박연희,이승훈,윤범,임충현,조문숙,이병두,류석용,김홍용 인제대학교 2000 仁濟醫學 Vol.21 No.2
Objectives: The purpose of this study was to analyze the clinical characteristics of the diabetic patients with altered mentality in the emergency room. Methdos and Materials: Retrospective study was performed from April 1994 to August 1999. We included the diabetic patients with altered mentality on the base of the daily reports of the emergency room and patient's admission database, then review the medical records of the patients. Results: The number of diabetic patients with altered mentality entering emergency room was 432 for about 4.5 years. The mean age was 62.2 years. The causes of altered mentality consisted of hypoglycemia(31.9%), neurologic problems(25.5%), hepatic encephalopathy(13.4%), hyperglycemic crises(7.6%) , and others. Patients with diabetic acute metabolic complications showed better prognosis than others. Conclusion: The diabetic patients visiting emergency room with altered mentality had carious causes. The most common cause was hypoglycemia followd by neurologic problems, especially stroke. The hyperglycemic crises relatively less common causes of the altered mentality. The rapid determination of the patients blood glucose bevel using the glucose reagents strip and acid-base status helps the physician to evaluate and manage the diabetic patients with altered mentality in a large majority.