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청장년에서 관찰된 관상동맥의 비죽종성 석회화와 동맥류 : 부검증례보고
이지신,이영직,박종태 大韓法醫學會 1997 대한법의학회지 Vol.21 No.1
Coronary artery calcification(CAC) is found frequently in the atheromatous plaques. CAC is known to have increased frequency above 40 years. CAC without evidence of atherosclerosis in young adults is quite rare, however, CAC combined with aneurysms in young adults have been infrequently reported in patients with a past history of a Kawasaki disease in child. We report an autopsy case showing CAC and aneurysm in the absence of macroscopically identified atherosclerotic lesions in a healthy 23-year-old man. The autopsy examination revealed aneurysmal dilatation of the right coronary artery, which was connected with calcified lesion. A calcified lesion of the left anterior descending coronary artery was aslo noted. Microscopically, aneurysmal wall was non-specific except for hyalinized wall and foci of calcification. A striking histologic finding of calcified mass was ring calcification along the wall of the coronary artery. Antecedent Kawasaki disease in the past was suggestive as other reports.
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권영직,장굉위 대구대학교 정보통신연구소 2010 情報通信硏究 Vol.7 No.1
본 논문은 W3C의 웹 콘텐츠 접근성 지침, 미국 재활법 508조의 지침과 한국의 한국형 웹 콘텐츠 접근성 지침에 대해 연구하였다. 모든 웹 사용자들이 본 논문의 연구결과를 웹 사이트를 이용함에 있어 활용한다면 사용의 편리성 지침에 큰 의미를 갖는다고 할 수 있다. We did research the W3C's Web Contents Accessibility Guidelines, the United States Section 508 of the Rehabilitation Act and Korean Web Content Accessibility Guidelines in this paper. If all web users utilized in usability web sites the research result of this paper, you can have great significance for the convenience of use.
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AUTO CAD를 이용한 NC선반작업의 공구경로 검증을 위한 교육용 프로그램 개발
한영호,김동직 建國大學校 附設 産業技術硏究所 1993 논문집 Vol.18 No.-
Using AUTO LISP, an educational program for checking tool paths for NC turning operation has been developed under the widely used AUTO CAD environment. This program enables the NC class to give students chances for visual experience for tool path checking on a desk-top PC although the class can not afford to provide the highly expensive NC machines. The program is equipped with the ability to convert the CAD data to NC data even though it is not fully developed at the present state. A general purpose tool path checking program is expected possible for other machining jobs than the turning operation on the same basis of this study.
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권영직,신운철 대구대학교 산업기술연구소 1993 産業技術硏究 Vol.12 No.-
To achive the competitive advantage under dynamic environment, the designing and implementing of Strategic Information System(SIS) is essential issues in business organization. Thus this thesis designed to provide some guidelines for design of effective SIS.
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이영직,박종태 大韓法醫學會 1997 대한법의학회지 Vol.21 No.2
Injury is generally defined as morphological changes due to physical or chemical stress, inflammatory or repair process, or secondary events of the other disease. In the nontraumatic injuries of the lung, direct physical effects to the lung such as contusion or rupture of the lung must be excluded. So, the types of nontraumatic injuries of lung are all pathologic changes of lung except for congenital anomalies; infectious of inflammatory disease, aspiration induced injuries, environmental or occupational lung disease, postoperative pulmonary changes, poison or drug induced toxic injuries, radiation injury, etc ······.
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In_(2-x) Ga_x S_3 박막 생장과 Composition에 따른 Energy Gap의 변화
郭泳稙,金根默 수원대학교 산업기술연구소 1986 산업기술연구소논문집 Vol.1 No.-
In_(2-x)Ga_xS_3 thin films that varied in composition from x=0.0 to 1.2 were grown on thoroughly cleaned glass substrates by the spray pyrolysis method. When the substrate temperature was maintained at 350℃, β·In_2S_3 polycrystalline thin film was grown on the slide glass in case of x=0.0, and In_(2_x)Ga_xS_3 thin films in the amorphous state for composition above x=0.6. The x-ray diffraction peak intensity for the (220) plane of the β·In_2S_3 polycrystalline thin films decreased with increasing x up to 0.6. The energy gap of In_(2_x)Ga_xS_3 thin film for the β·In_2S_3(x=0.0) polycrystalline structure was found to be 2.20 eV at room temperature. The energy gap was decreased with increasing the composition in the range x=0.0 to 0.6 with a polycrystalline structure; there was an anomality at x=0.6; and then it was abruptly increased with increasing x composition with an amorphous structure.
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이화직,최종만,하영철,곽윤근 金烏工科大學校 1993 論文集 Vol.14 No.-
Openings through beams are required for the passage of utility ducts and pipes, and they are frequently encountered in the design of modern buildings. They are particularly important in multistory buildings where the use of openings in beams can mean lower story heights, leading in turn to a multiplicity of savings. Therefore, the designers are often faced with the necessity of providing adequate openings in the buildings. However, provision of openings may cause problems of excessive cracking and deflection, and may severely affect the strength of a beam. An experimental investigation is carried out on ten reinforced concrete beams with rectangular openings. The size of opening and it's location are considered as major variables. The specimens were tested under two point loading. Loads were usually applied in steps of 0.5 ton up to failure to observe the crack initiation and propagation, initial diagonal cracking midspan deflection, concrete strain and reinforcement strain.
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Zone refining에 의한 고순도 Cu 제조에 관한 연구
윤영옥,조형호,조훈,김세광,김영직 대한금속재료학회 2005 대한금속·재료학회지 Vol.43 No.3
The refining efficiency of high-purity Cu was investigated prepared by zone refining, with respect to travel rate, distribution coefficient, number of pass and zone length. Especially, to investigate refining efficiency with respect to zone length, experimental and computer simulation results were compared. The composition of the refined high-purity Cu was analyzed by GDOS (Glow Discharge Optical Spectroscopy) and GDMS (Glow Discharge Mass Spectrometer). The composition profiles of each segment at the given condition were compared with the results of micro hardness profiles. The results showed that the refining efficiency was inversely proportional to the travel rate, while it was proportional to the number of pass. The travel rate was more effective than the number of pass to enhance the refining efficiency in zone refining process. Impurities whose distribution coefficients are below 0.5 were removed efficiently. The effectively refined region increased with decreasing the zone length from 45 mm to 30 mm. Especially, the element S, which is known to be hardly removed by zone refining, could be removed to a level of under 0.1 ppm over the 60% region at 1 mm/min. (Received July 22, 2004)
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미토콘드리아 Cytochrome b5의 계면활성제를 사용한 분리ㆍ정제
李相稷,李상鎬,權英愛,郭天錫,呂基淑 嶺南大學校附設 基礎科學硏究所 1988 基礎科學硏究 Vol.8 No.-
Cytochrome ?? was separated from the mitochondrion of bovine heart. The spectrum of the cytochrome was that of oxidized one and reduced one was produced on reducing it with sodium hydrosulfite. The reduced cytochrome b? showed its absorption bands of alpha, beta and gamma. A surfactant Triton X-100 facilitated the isolation of the cytochrome from the mitochodrion.
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