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최성용,이주형,임홍범,윤경구 강원대학교 산업기술연구소 2003 産業技術硏究 Vol.23 No.A
The properties of mechanics and durability of LMC have been performed actively. However. little studies on analysis and properties of thermal expansion has been on the temperature variation. Especially. the low of bonding strength and tensile cracking are caused by difference of thermal expansion between LMC and the substrate concrete Therefore, this study focused on effect of thermal expansion behavior and properties of LMC according to temperature variation. To identify the property of thermal expansion of LMC. tests of modulus of thermal expansion were carried out at 28 days after casting specimen. subjected to temperature variation between 10℃ and 60℃ The results of this study showed the modulus of elastic of LMC was similar to that of ordinary portland concrete(OPC) It means that stresses caused by difference of modulus of elastic did not occur on interface between LMC and existing concrete The modulus of thermal expansion of LMC had a little smaller than that of OPC The modulus of thermal expansion of polymer modified concrete is generally larger than OPC. but the result of this test IS disagree with the fact. which may be due to the humidity evaporation difference and aggregate properties
최영호,서홍주,임영혁,김정중,박성강,이석기,임진수,김은규 조선대학교 2001 The Medical Journal of Chosun University Vol.26 No.2
Pulmonary blastoma is a very rare primary neoplasm of the lung. We experienced a case of pulmonary blastoma in a 40 years old man. The mediobasal segmentectomy of the right lower lobe was performed. The patient was discharge on the postoperative days 6. There is no evidence of recurrence or metastasis on followup study during 7 months period after operation.
최형일,맹주성,이도형 漢陽大學校 工學技術硏究所 2001 工學技術論文集 Vol.10 No.-
본 논문에서는 연속류 영역과 미끄럼류 영역의 유동을 수치계산하기 위한 혼합 비정렬격자 압력기반해법을 제안한다. 압축성 효과를 반영하는 수정된 SIMPLE법을 비정렬격자 격자점 중심법에 적용하였다. 대류항은 2차의 중앙차분법을 지연수정법으로 이산화 하였으며, 확산항은 2차 정화도의 유사 정렬격자 기법을 사용하였다. 또한, 혼합 비정렬격자에서 기억장소의 절약과 계산 효율을 저하여 모서리 자료구조와 격자점 중심법을 사용하였다. 연속류 영역 뿐 만 아니라, 미끄럼 유동의 벽면에서의 미끄럼 현상을 해석할 수 있도록 미끄럼 경계조건을 부과하였으며, 여기에는 널리 쓰이는 Maxwell 경계조건과 명에 의해 새로이 제안된 Langmuir 경계조건을 사용하였다. 제안된 수치기법을 이용하여 연속류 영역의 유동과 미끄럼류 영역의 유동에 대해 수치 계산을 수행하였으며, 본 기법의 정확도와 효율성을 입증하였다. This paper proposes a pressure based method to compute both continuum flow and slip flow on hybrid unstructured grids. The compressible version of SIMPLE algorithm is extended to unstructured grids. Convection terms are discretized using second order central differencing with deferred correction approach and diffusion terms by second-order structured grids analogy. This method also uses cell vertex scheme with edge based data structure in order for memory savings and computing efficiency for arbitrary grid topologies. As well as continuum flow, slip flows are solved by adopting slip boundary conditions, which are well known Maxwell condition and Langmuir condition recently proposed by Myong.(30) The flows in both continuum regime and slip flow regime are calculated using the above methodology, which shows that the proposed method is well-devised with respect to accuracy and efficiency.
개심술(開心術)의 임상적 고찰 : 치험 200예 200 Cases
최형호,서홍주,임영혁,김정중,배대양,이석기,임진수 조선대학교 부설 의학연구소 2002 The Medical Journal of Chosun University Vol.27 No.2
Background and Objectives: Two hundred cases of the open heart surgery due to congenital and acquired heart disease were done using the cardiopulmonary bypass in the Department of Thoracic and Cardiovascular surgery, Chosun University Hospital from November, 1980 to June, 2001. Material and Methods: The number of congenital heart disease was 132 cases. 68 cases were acquired heart disease. 'The age of the congenital heart disease was from 22 days to 45 years. In the acquired heart disease, the age was from 14 to 72 years. Result: Congenital heart disease consisted of 113 congenital acyanotic heart disease, 19 congenital cyanotic heart disease. Corrective operation was done for congenital heart disease with 4. 5 % operative mortality. Of 68 cases acquired heart disease, 44 patients were valvular heart disease, 3 cardiac tumors, 9 ischemic heart diseases, 12 aortic dissections and etc. The operative mortality was 13%. Conclusion: The postoperative complications were appeared in 68 cases and the complications were wound infection, occipital alopecia, low cardiac output syndrome, arrhythmia, septicemia etc. The mortality after open heart surgery was 15 cases and the causes of death were low cardiac output syndrome, septicemia, respiratory failure and left ventricle rupture.
최창주,서강성,박수강,조금배,백형래,임병옥 조선대학교 에너지.자원신기술연구소 2002 에너지·자원신기술연구소 논문지 Vol.24 No.2
Single phase induction motor(SPIM) is one of the most widely used type of low power AC motors in the world, especially for domestic or commercial applications where a three phase power supply is not available. Fractional horse power single phase induction motors have no starting torque their own. So there are several ways of starting single phase induction motors. The most common type is the starting capacitor installed in series with the auxiliary winding to increase the starting torque. Also, the auxiliary winding is disconnected once the speed of the motor reaches 70 to 80% of the rated speed. In the conventional systems, this function is conducted by a centrifugal switch. But the mechanical centrifugal switch has many problems such as switch malfunction. This paper presents the new methods of universal starting switch by digital controller to overcome these shortcomings of centrifugal switch.
호흡율 측정기를 이용한 폐수의 외부탄소원 이용가능성 평가
최은희,고주형,임정훈,부경민,김창원 부산대학교 환경문제연구소 2000 環境硏究報 Vol.18 No.-
In this research, we measured Readily Biodegradable COD(Ss) using respiration meter which measured OUR and calculated respiration rate due to calculate organic matter portion of external carbon sources because known organic matter analysis methods i.e. COD, BOD did not measure amount of organic matter which was used in denitrification. Based on the experimental results, leather wastewater had 40.3% Ss in TCOD and food fermentation liquid, alcoholic wastewater and petrochemical wastewater was 38%, 38% and 28.3% respectively. However in case of considering of flowrate and concentration, flood fermentation and alcoholic wastewater was revealed that they were effective external carbon sources
김주필(Joo Pil Kim),최한석(Han Seak Choi),이형민(Hyung Min Lee),이형진(Hyung Jeen Lee),이태후(Tae Hoo Lee),심주영(Ju Young Sim),조윤규(Yoon Kyu Jo),조원규(Won Kyu Jo),이준이(Joon Lee Lee) 한국거미연구소 2018 한국거미 Vol.34 No.2
2018년 10월 2일부터 3일까지 경기도 하남시 소재 검단산을 주야로 한국거미연구회 회원 13명(김주필, 최한석, 이형민, 이형진, 심주영, 이태후, 조윤규, 조원규, 이준이, 이현동, 윤혜원, 이광섭, 김형주)이 채집한 결과 22과 43속 56종이 채집되어 이에 보고 발표하는 바이다. From October 2 to 3 in 2018. Koran Arachnological Study members investigated the Spiders in the whole area Gyeonggi-do Hanam-si, and reported 22 Families, 43 Genus 56 Species of spiders. The collected spiders are placed (stored) in the Joo-Pil Spider museum.
김주필(Joo-Pil Kim),예용택(Yong-Taek Ye),최한석(Han-Seok Choi),장지현(Jee-Hyeon Jang):예성훈(Seong-Hun Ye),김태우(Tae-Woo Kim),김대희(Dae-Hee Kim),지승환(Seung-Hwan Ji),이형민(Hyung-Min Lee),이형진(Hyung-Jin Lee) 한국거미연구소 2016 한국거미 Vol.32 No.2
2016년 8월 3일부터 5일까지 제주특별자치도 서귀포시 대정읍 마라도 일대를 한국거미연구회 하계 합동채집회에 김주필, 예용택, 최한석, 장지현, 예성훈, 김태우, 김대희, 지승환, 이형민, 이형진, 신정애, 허양미, 이영경, 최라미, 이윤정 등이 채집조사한 결과 15과, 39속, 45종의 거미류가 조사연구되어 이에 보고하는 바이다. The authors investigated the spiders of the Mara Island in Jeju Island. In the present paper 45 species of 39 genera belong to 15 families were identified. These specimens are deposited at the Joo-Pil Spider Museum, Namyangju-Si, Kyunggi-Do.
김주필(Joo Pil Kim),최한석(Han Seak Choi),이형민(Hyung Min Lee),이형진(Hyung Jeen Lee),이태후(Tae Hoo Lee),심주영(Ju Young Sim),조윤규(Yoon Kyu Jo),조원규(Won Kyu Jo),이준이(Joon Lee Lee) 한국거미연구소 2018 한국거미 Vol.34 No.2
2018년 10월 13일부터 14일까지 경기도 가평군 소재 화야산을 주야로 한국거미연구회 회원 13명(김주필, 최한석, 이형민, 이형진, 심주영, 이태후, 조윤규, 조원규, 이준이, 이현동, 윤혜원, 이광섭, 김형주)이 채집한 결과 18과 41속 48종이 채집되어 이에 보고 발표하는 바이다. From October 13 to 14 in 2018. Koran Arachnological Study members investigated the Spiders in the whole area Gyeonggi-do Gapyeong-gun, and reported 18 Families 41 Genus 48 Species of spiders. The collected spiders are placed (stored) in the Joo-Pil Spider museum.