http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이동한 ( Dong-han Lee ),이정재 ( Jung-jae Lee ),김동규 ( Dong-kyu Kim ),김강민 ( Kang-min Kim ),한솔 ( Sol Han ),이동일 ( Dong-il Lee ),이훈수 ( Hoon-su Lee ),이정현 ( Jung-hyun Lee ) 한국농업기계학회 2023 한국농업기계학회 학술발표논문집 Vol.28 No.2
최근 국내에서 건조과일의 수요가 증가하고 있다. 또한 건강에 대한 관심이 꾸준히 증대되고 있어 대체당을 이용하여 과일의 당도를 높이지만 체내에는 흡수되지 않아 맛과 건강을 챙길 수 있는 기술에 대한 연구가 진행되고 있다. 효소처리 스테비아는 최근 주목받고 있는 대체당 중 하나로 스테비아 추출물에 α-글루코실전이효소 등을 이용하여 글루코스를 부가시켜 제작된다. 효소처리 스테비아도 다른 대체당과 마찬가지로 단맛을 내지만 체내에 흡수되지 않고 배출되기 때문에 저칼로리 식품에 많이 사용되고 있다. 그러므로 효소처리 스테비아를 이용한 건조 사과의 제작에 대해 실험하여 사과의 갈변현상을 방지하고 당도를 높여 향상된 품질의 건조 사과를 제조할 수 있는 기술로서의 검토가 필요하다. 따라서 본 연구에서는 효소처리 스테비아를 사과에 침지 전처리하고, 동결 건조하여 건조 품질특성을 확인하는 것을 목적으로 하였다. 건조시료로서 한 변이 15mm인 정육면체 형태로 절단된 사과를 스테비아 20g, 60g, 100g을 각각 증류수 200ml와 혼합한 10%, 30%, 50%의 희석액에 2시간 동안 침지하였으며 침지한 시료를 21시간 동안 동결건조하여 침지용액의 농도에 따른 시료의 당도, 색도, 중량의 차이를 확인하였다. 당도는 증류수 40ml에 시료 20g을 넣고 80,000RPM으로 혼합한 뒤 당도측정계(PAL-1)을 이용하여 측정하였으며 색도는 색도계(CM-2600d)를 이용하여 시료 3면의 L, a, b 값을 측정하였다. 실험 결과 효소처리 스테비아 용액에 사과를 침지한 후 건조를 하였을 때 전처리 없이 건조한 사과보다 갈변현상이 적게 발생하였고 당도도 증가한 결과를 보였다. 또한, 효소처리 스테비아 용액의 농도가 높을수록 중량, 당도, 색도의 L 값이 증가하였고 색도의 a 값이 감소하였다. 따라서 건조 사과를 제조할 때 효소처리 스테비아 전처리하는 과정을 거친다면 갈변현상은 감소시키고 당도를 증가시킨 건조 사과를 제조할 수 있을 것으로 판단되었다.
플립러닝을 활용한 초등영어 학습부진아를 위한 수업지도방안
이동한(Lee Dong Han),김동규(Kim Dong kyoo) 영상영어교육학회 2016 영상영어교육 (STEM journal) Vol.17 No.1
The purpose of this research is to develop an English class plan for English underachievers in Korean elementary schools through flipped learning. This study first seeks to outline the characteristics of English underachievers in accordance with the findings of previous studies. Current practices and teaching methods for English underachievers in Korean elementary schools were then examined to find weaknesses in the existing classroom model. In the next step, a teaching and learning method, flipped learning, was introduced as an English class plan. Finally, an English class model using flipped learning was provided with the goal of improving English ability for underachievers in elementary schools. Four steps of English class procedures in the class model were introduced: the pre-class, the in-class, the post-class, and the daily life time class. The in-class procedure was divided into three stages that include the opening, middle, and closing stages. In each stage, the contents of class activities and interactions between teacher-student and student-student were presented as class modules. It was found that in order for a successful application of flipped learning into elementary school classrooms for English underachievers to be instituted, there should be constant interaction between teachers and students.
이동제(Dong-Je Lee),김형만(Hyung-Man Kim),이동호(Dong-Ho Lee),홍기호(Ki-Ho Hong),배명환(Myung-\han Bae) 한국자동차공학회 2002 한국자동차공학회 지부 학술대회 논문집 Vol.2002 No.3
In the present study, surface temperature measurement of the cylinder head was done in a diesel Engine by K-type and E-type thermocouples. The thermocouples are welded on the surface of the cylinder head to measure the surface temperature, and drawn out through the hole of safety valve. A connector is designed and manufactured in the hole of safety valve, and Ceramic bond was used to prevent the leakage of combustion gas. Surface temperature distribution of the cylinder head have been measured with various engine torque. The results show that the surface temperature of exhaust valve side is much higher than other parts.<br/>
간문맥 혈전을 동반한 Alpha-Fetoprotein 분비 췌장 선암
이동후(Dong Hoo Lee),박경남(Kyung Nam Park),이민호(Min Ho Lee),기춘석(Chun Suhk Kee),박문향(Moon Hyang Park),한동수(Dong Soo Han),윤병철(Byung Chul Yoon),이오영(Oh Young Lee),손주현(Joo Hyun Sohn),함준수(Joon Soo Hahm),고병희(Byung H 대한소화기학회 1997 대한소화기학회지 Vol.29 No.5
A 39-year-old male with alpha-fetoprotein (AFP) producing pancreatic adenocarcinoma is reported. Abdominal ultrasonography, computed tomography and magnetic resonance imaging showed a tumor extending from head to tail of the pancreas and portal vein thrombi. Neoplastic cells were confirmed by fine needle aspiration cytology from pancreas head mass and portal vein thrombus. Immunohistochemical stainings for a -fetoprotein and a 1-antitrypsin showed a strong reactivity in the neoplastic cells. We report this case with a review of the literature. (Korean J Gastroenterol 1997; 29: 699-705)
이동후(Dong Hoo Lee),이민호(Min Ho Lee),기춘석(Chun Suhk Kee),최호순(Ho Soon Choi),한동수(Dong Soo Han),윤병철(Byung Chul Yoon),이창범(Chang Beom Lee),이오영(Oh Young Lee),박경남(Kyoung Nam Park),손주현(Joo Hyun Sohn),함준수(Joon Soo 대한소화기학회 1997 대한소화기학회지 Vol.29 No.2
Ulcerative colitis is a chronie inflammatog disorder of unknown cause, which primarily involves the eolonic mucosa. There is increased incidence of carcinoma in patients with uicerative colitis. The major independent factor for coloreetal cancer in patients with ulcerative colitis is duration of disease, extent of involvement, and onset of age. We report two cases of colon cancer which arose in patients with a long history of ulcerative colitis, A 52-year-old house wife was admitted due to bloody diarrhea. She had a 10 years history of ulcerative colitis with pancolitis. The pathologic specimen shows multicentric cancer in rectosigrnoid region and proximal ascending colon with histologic features of mucinous adenocarcinoma. She died of cancer recurrence in the rectum 13 months later. Seeond case is a 62-year-old woman who presented with diffuse abdominal pain. She had a 6 year history of ulcerative colitis with pancolitis. Right hemicolectomy was done. Pathologic specimens showed adenocarcinoma with crypt abscesses and mild dysplasia in the adjacent cecal mucosa. After chemotherapy, she is still alive without complication. (Korean J Gastroenterol 1997; 29:259 - 266)
이동한(Lee, Dong-Han),이석주(Lee, Suk-Ju),김종현(Kim, Jong-Hyun),박민원(Park, Min-Won),유인근(Yu, In-Keun) 한국신재생에너지학회 2006 한국신재생에너지학회 학술대회논문집 Vol.2006 No.06
In this paper an integrated model of PV-AF (Photovoltaic-Active Filter) and PV-SPE(Photovoltaic Solid Polymer Electrolyte) system using PSCAD/EMTDC were explained in detaiil. The main concept of PV-AF system starts from the 'harmonics'. In order to deliver power to utility, PV system essentially needs a converter system. Here PV-AF system adds the function of active filter to the converter system installed in PV system, which was introduced already in several papers. PV-SPE system has been studied as a replacement of existing hydrogen production technology that emits large amount of carbon dioxide into atmosphere. Until now, these two systems, PV-AF and PV-SPE, have been considered separately However, in this paper, characteristics and advantages of combined system are discussed in detail.
Flipped Learning을 통한 영화 활용 영어 수업 모형 개발 방안 연구
이동한 ( Dong Han Lee ) 한국중등영어교육학회 2016 중등영어교육 Vol.9 No.1
A rising teaching and learning method, Flipped Learning, has recently received a lot of attention in the various fields of school classroom environments. The application of Flipped Learning in the classroom has shown to have a positive educational effect on a variety of areas such as academic achievement, attitude, collaborative learning, and self-directed learning. However, a variety of limitations of applying Flipped Learning in school environments, especially in English classroom environments, has also been the topic of much discussion. As a way of resolving the limitations of applying Flipped Learning to English teaching, it is suggested that a combination of Movie and Flipped Learning be introduced into English lessons. The purpose of this study is to develop an English class model that uses movies through Flipped Learning. To do this, English class modules are introduced by blending movie-watching methods and Flipped Learning class procedures. Three steps of English class procedures are provided: the pre class, the in class, and the post class. Moreover, the in class procedure is divided into three stages that include the opening, central, and closing stages. In each stage, the contents of class activities and interactions between teacher-student and student-student are presented as class modules.