http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
임성환,김승우,Lim, Sung Hwan,Kim, Seung Woo 대한후두음성언어의학회 2018 대한후두음성언어의학회지 Vol.29 No.1
Trauma, congenital malformation and aging process can be a cause of the deviation of laryngeal prominence in the thyroid cartilage. Among these, the senility is the most common cause. Usually, ossification in the thyroid cartilage has occurred symmetrically, but the asymmetrical event leads to the shift of laryngeal prominence. Also, such deformity can provoke protrusion of false vocal fold. A 75-year-old man with hoarseness and globus sense in throat visited our clinic. Five years ago, he experienced a blunt trauma on left midline neck and had a concave deformity in the left thyroid cartilage lamina. Laryngoscopic findings revealed a marked protrusion in the left false vocal fold. We performed the laryngeal microsurgery to discriminate the tumorous condition. The pathology revealed non-pathologic mucosa. We report a unique and didactic case with a brief literature review.
오대산의 소황병산늪과 질뫼늪의 토양 특성 및 습지 연대 분석
임성환 ( Sung Hwan Lim ),최성철 ( Sung Chul Choi ),황정숙 ( Jeong Sook Hwang ),최덕균 ( Deok Gyun Choi ),추연식 ( Yeon Sik Choo ) 한국환경생태학회 2013 한국환경생태학회지 Vol.27 No.4
본 연구는 오대산 국립공원 내이탄습지로 알려진 소황병산늪과 질뫼늪을 대상으로 토양의 이화학적 특성을 파악하고, 두 습지의 생성 연대를 추정하기 위하여 토양시료를 채취하여 분석하였다. 소황병산늪과 질뫼늪의 토양 pH는 평균 5.5로 조사 시기 및 식물군락에 따른 유의적인 차이를 보이지 않았다. 총 이온함량은 식물군락에 따른 차이를 보이고 있지만, 각 식물 군락 내에서 조사 시기에 따른 차이를 보이지 않았다. 총 이온 함량과 마찬가지로 치환 성 양이온인 Na, K과 Mg 함량 또한 식물 군락에 따른 차이를 보였지만, 조사 시기에 따른 함량 차이를 보이지 않았다. 다른 양이온과는 달리 Ca 함량은 식물군락과 조사 시기에 따라 유의한 차이를 나타내었다. 유기물 함량과 총 질소함량은 식물군락에 따라 현저한 차이를 보였으며, 특히 물이끼(Sphagnum palustre)가 분포하는 지점에서 두 습지 모두 낮은 함량을 나타내었다. 위의 결과를 바탕으로 소황병산늪과 질뫼늪은 약산성의 bog 습지로 생각되며, 두 습지 토양의 생성 연대를 분석한 결과 소황병산늪은 AD 100년 그리고 질뫼늪은 AD 1448년으로 조사되어 소황병산늪의 생성연대는 AD 100년 그리고 질뫼늪은 AD 1448년 이전에 습지가 형성되어졌을 것으로 추정된다. In order to identify soil characteristics and to estimate the age of wetland, soil samples of Mt. Sohwangbyoung wetland and Jilmoi wetland known as peatland in Odaesan National Park. were collected and analyzed. Soil pH of Mt. Sohwangbyoung wetland and Jilmoi wetland showed average pH of 5.5, and did now show any significant difference according to the time and plant community. Total ionic content of soil showed different values among plant communities, but no difference by time in each plant community. Soil exchangeable cations such as Na, K and Mg showed a similar pattern of total ionic content. Unlike other cations, however, Ca content showed significant differences according to the plant community and time. Soil organic matter and total nitrogen contents showed remarkable differences according to plant community, and especially showed very low valeus at the place where Sphagnum palustre distributes. Based on the results of the above, Mt. Sohwangbyoung wetland and Jilmoi wetland can be considered as weakly acidic bog. From age analysis, two wetlands are estimated to have been formed before 100 AD for Mt. Sohwangbyoung wetland and 1448 AD for Jilmoi wetland, respectively.
임성환(Sung-Hwan Lim),구본관(Bon-Gwan Gu) 대한전기학회 2018 전기학회논문지 Vol.67 No.1
The winding of the motor stator coil is broken due to external stress and various factors. If the proper current is not injected when interturn fault(ITF) occurs, the fault can easily be expanded and the motor can be finally destroyed, resulting in many problems with time costs and safety. In this paper, the power loss limit concept, which is the inherent durability of each motor, is applied to secure safety by controlling the total power loss of the motor within the limits. So, we propose an algorithm that can control maximum torque per minimum power loss based on constant torque curve and power loss limit. To verify the proposed method, the simulation and experimental results with an Interior permanent magnet synchronous motor(IPMSM) having an ITF are shown.
임성환(Sung Hwan Lim),김민아(Min A Kim),김승우(Seung Woo Kim) 대한두경부종양학회 2018 대한두경부 종양학회지 Vol.34 No.2
The arteriovenous malformation (AVM) is an anomaly of capillary development that results from direct connection between branches of artery and vein without intervening capillary bed. The neurogenic tumors have a tendency to various types of degeneration. Recently, we experienced a 73-year old man with a mass in left supraclavicular area. The intraoperative findings showed severe adhesions with cervical plexus, like a neurogenic tumor. Finally, the mass was revealed as AVM. We report a unique disease pattern with a literature review.
웹기반 Visual Basic 코스웨어의 설계 및 구현
임성환(Sung-Hwan Lim),강지훈(Ji-Hoon Kang) 한국정보과학회 2002 한국정보과학회 학술발표논문집 Vol.29 No.1B
인터넷에는 많은 코스웨어가 등장하고 있지만, 초급 프로그래머의 양성을 목표로 하는 실업계 고증학교 학생들을 위한 정보처리기능사 실기 과목과 관련된 내용을 다룬 학습 사이트는 찾아보기 힘들다. 학생들의 자격증 취득 방법을 살펴보면 83.6%가 학원을 통해 자격증을 취득하고 학교에서 배운 내용을 중심으로 자기 주도적 학습을 통해 자격증을 취득하는 학생은 16.4%에 불과하다. 이에 웹을 통해 학습 방법을 자기 주도적으로 개선하도록 비주얼베이직 코스웨어를 학생들의 수준에 따라 5단계로 나누어 개발하였다.
임성환(Sung Hwan Lim),김승우(Seung Woo Kim) 대한두경부종양학회 2017 대한두경부 종양학회지 Vol.33 No.2
Dysplastic epiglottis is extremely rare congenital malformation, which usually occurs in association with other laryngeal anomalies. Hypoplasia is the most common type in epiglottic malfomations. Other abnormalities include rudimentary, aplasia and bifid etc. Mostly, they are found in infancy and early childhood, and diagnosis at adulthood is extremely rare. A 69-year-old man with chronic cough and globus sense visited our clinic. Laryngoscopic findings revealed a unique form of epiglottis. He had no history of laryngeal trauma, tumors, head and neck surgery, and radiation. There was no another anomaly in the laryngo-pharynx. Because of a mass-like lesion at the apex of epiglottis, we performed the laryngeal microsurgery. The pathology revealed as granulation tissue. We report a rare and unique case of dysplastic epiglottis in elderly patient with a brief literature review.