Phenazine Methosulfate의 Superoxide Radical 生成作用

李民化,安鳳煥,李起榮,朴昞柱,梁誠烈,薛鍾銀 全南大醫大 1984 전남의대학술지 Vol.21 No.2

Fe-29%Ni-17%Co 코바 합금의 고온 내산화성 및 열간 가공성에 미치는 Mo 첨가의 영향

이기안,조창완,성병근,김병문,김문철 대한금속ᆞ재료학회 2006 대한금속·재료학회지 Vol.44 No.3

Ascorbin酸의 自動酸化에 依한 Superoxide 이온의 發生

李民化,李起榮,張香模,梁誠烈,朴昞柱 全南大醫大 1985 전남의대학술지 Vol.22 No.2

캐릭터 연동 온라인 3D 게임을 위한 실시간 모션캡쳐 시스템 개발

이준호,유영기,노병욱,이수진 선문대학교 ·중소기업기술지원연구소 2002 선문공대 연구/기술 논문집 Vol.7 No.1

최근들어 3차원 가상현실의 발전과 더불어 동작을 트랙킹하는 모션캡쳐는 엔터테인먼트, 의학, 스포츠, 교육, 산업등에 다양하게 널리 사용되어지고 있다. 특히 엔터테인먼트분야의 애니메이션과 게임등에서는 캐릭터의 생성에 모션캡쳐 기술을 사용하는데 기존에는 마우스, 조이스틱, 미디 슬라이더(Midi Sliders) 및 기타 장치들을 사용하여 캐릭터를 직접 연기시키는 방법을 사용하였으나 모션캡쳐에 의한 방법은 이전에 볼 수 있었던 그 어떤 방법보다도 자연스러운 움직임을 만들어낼 수 있다. 본 연구에서는 캐릭터를 연동한 온라인 3D 게임을 실현하기 위하여 광센서를 이용한 저가이면서도 빠른 샘플링 빈도를 갖는 모션캡쳐 시스템을 개발하고자 한다. Motion trackings are being used in part of the entertainment, medical, sports, education and industry with the development of 3D virtual-reality. In particular, the technology is used for animation and games as a part of entertainment. We can make very smooth motion that was never realized before, if we use the technology instead of using mouse, joystick, midi-sliders and so on for making some characters. In this research, we have developed a very low priced and fast sampling system using optic sensors for capturing the motion.

기-액계면 흡착에 의한 계면활성제 및 중금속분리

이근희,남상진,김병조,박경기,박종태,신정호 釜山大學校生産技術硏究所 1997 生産技術硏究所論文集 Vol.53 No.-

CTAB에 의한 CuS 침전 미립자의 응집과 기포 흡착특성을 고찰하였다. CTAB의 기포흡착은 Langmuir흡착식을 따르며, 포말간 본체액의 동반을 고려한 회분해석으로부터 구한 흡착열은 3700cal/mol로 나타났다. CTAB에 의한 CuS미립자의 기포흡착은 기포-입자간 충돌흡착으로 설명되었고, 흡착분리에 대한 최적 농도비는 CuS의 최적 응집농도비와 일치하였으며, 그 값은 [CTAB] 대 [CuS]가 0.1로 얻어졌다. 기포에 의한 포집효율은 pH와 CTAB농도 등에 의존하나 공기의 유량에는 무관하였으며, 최대 포집효율은 최적 첨가농도에서 0.0002로 나타났다. 또한 Cu-Cd-Zn 황화물의 혼합계에서 CTAB를 사용한 기포흡착의 경우 ZnS의 선택적 분리가 가능하였다. The characteristics of the bubble adsorptive separation of CTAB(cetyltrimethyl- ammonium bromide) and CuS precipitates was investigated. The Langmuir adsorption equation was adequate at very low concentration of CTAB, and the adsorption heat was determined from the batch analysis considering the bulk liquid accompanied between bubbles. The adsorption mechanism was explained with the collision adsorption between bubbles and precipitate particles. The optimum concentration ratio of [CTAB] to [CuS] for adsorptive separation was 0.1 and coincided with the ratio for the coagulation of particles. The collection efficiency was depended on pH and CTAB concentration but not the air flow rate, and the maximum efficiency was 0.0002. The selective separation of ZnS from the mixture of Cu-Cd-Zn sulfides was able by the bubble adsorption with CTAB.

복합재를 이용한 구조물의 균열보수 대책에 관한 연구

李晟熙,韓秀贊,韓秉基,具秉俊 弘益大學校 科學技術硏究所 1997 科學技術硏究論文集 Vol.8 No.-

Recently, composite materials have widely become available to engineers. This paper briefly explains the applications of these materials and shows how these materials can be used to repair structures with damages such as crack, notch, etc. Before the fatigue test, notched and repaired specimens with thin laminate composite are prepared. Also, test apparatus is designed to perform four point fatigue test of specimens. From the experimental result, it was found that present repair technique could be used to enhance the life of damaged structures.

심인성 신체화 증상의 좌우 편재

이병욱,남궁기,민성길 大韓神經精神醫學會 1995 신경정신의학 Vol.34 No.4

Objects : The purpose of this study was to examine chief somatic complaints and their correlation to laterality in the body, and severity of anxiety and depression. Methods : The sixty-one patients were examined. The diagnostic criteria used was DSM-Ⅲ-R. The severity of depression and anxiety was assessed with Hamilton's depression scale and Hamilton's anxiety scale, respectively. The demographic data of the subjects were also analyzed. Results : The chief psychogenic somatic symptoms that were complained by patients occurred significantly more on the left side than on the right side(Left : Right : Both=62.3% : 19.7% : 18.0%). Headache was the most common somatic symptoms and headache and other symptoms were significantly more on the left. The demographic data did not make a difference between the left and right-sided groups. The diagnosis did not make a difference between the left and right-sided groups. The score of anxiety or depression were higher in the left-sided group than the right-sided group, but not statistically significant. conclusions : These results suggest that the laterality of psychogenic somatic symptoms seems to be more related with left hemisphere.

접촉 발광 소자 검사에 관한 연구

이준호,유영기,노병옥 선문대학교 ·중소기업기술지원연구소 2002 선문공대 연구/기술 논문집 Vol.7 No.1

접촉식 지문인식기에 사용되는 접촉발광소자는 투명전극층, 발광층, 기판층으로 구성되어 있고, 접촉발광소자의 기판부분에 지문이 접촉될 경우 전계(Electric Field)가 형성되어 빛을 발하게 된다. 이때 접촉발광소자에 발생되는 빛이 소자 전체에 균일하게 발생하여야 양질의 이미지를 획득할 수 있다. 본 논문에서는 이러한 특성을 검사하기 위해 비젼 시스템을 이용하여 접촉발광소자의 외형치수, 전계형성의 균일성, 지문영상의 대조 및 외부 조명에 의한 투과도 등의 센서의 성능을 검사하는 방법에 대하여 연구하고자 한다. CLED (Contact Light Emitting Device) has three layers consisting of a transparent electrode, a light emitting layer and a substrate. When the substrate of the CLED comes in contact with a fingerprint under AC input voltage, it makes an electric field between the fingerprint and the device. Due to the electric field, the light is emitted along the ridgeline of the fingerprint. The intensity along the ridge on the surface of the CLED increase in proportion to the electric field. To achieve the uniform performance of fingerprint verification devices, inspection system of CLED for quality control were required. In this research, we proposed the factors for quality controls such as dimensions of the CLED, uniformity, contrast, brightness and transmission. In addition, we realized the inspection system that is measured the quality control factors.

수치모델을 이용한 제주도 무릉리 주변해역의 조류 및 온배수확산특성

이병걸,양성기,방익찬 제주대학교 해양연구소 1996 해양자원연구소연구보고 Vol.20 No.-

The numerical models based on the shallow water wave equation and the diffusion equation were applied to the coastal mne of Murung-ri, Cheju Island to find out tidal current and thermal diffusion pheno-mena Computed maximun tidal current velocity during ebb and flood tide was almost 100 cm/sec and main directions of tidal current were South-East in flood and North-West in ebb tide, that was similar to the observation one. The thermal diffusion length of horizontal and verical directions from coastal zone were 3 km and 1 km. repectively during 1 tidal cycle based on numerical diffusion model. The diffusion pattern during tidal cycle was strongly related to tidal current velocity patterns.

RIETAN 시뮬레이션에 의한 YBCO 초전도체 결정구조 전이에 관한 연구

이상운,채기병,소대화 明知大學校 産業技術硏究所 1995 産業技術硏究所論文集 Vol.14 No.-

In this study, we have tried to focus on the practical use of YBCO high temperature superconductor as an excellent part in electronic field. When we verify the characteristic improvement of superconductance and accurate reproduce and so forth, we made use of RIETAN, we changed the lattice constant and oxygen content from 6.0 to 7.0 as for the transition of orthogonal structure and tetragonal structure at superconductor, at the result we proved that transition from tetragonal structure to orthogonal structure was made at the point of 6.6(oxygen content) by using the simualtion. In addition, we proved that the transition peak of structure is transient from 2θ=32.587。 to 2θ =32.908。 at the tetragonal peak. and is transient from 2θ=32.877。 to 2θ= 32.908。. at the tetragonal peak. Also, major oxygens are located at O(2) and O(3) at tetragonal structure and are located at O(3), O(4), and O(5) at orthogonal structure, when tertagonal structure is converted into orthogonal structure. At the result of above passage, we verified that the transition point of oxygen-ion orthorhombic critical Point is 6.6.