인간 시각 특성을 고려한 DTV 비디오 테스트 패턴 연구

한찬호,박양우,윤태진 경운대학교 산업기술연구소 2001 産業技術硏究論文誌 Vol.3 No.2(C)

For DTV development and testing, we propose composite a video test pattern considering human visual characteristics and compress to stream. In this paper, we use the SMPTE 274M for video input format. And we compose verity analog video test pattern and develop digital video test pattern. We propose MPEG-2 MP@HL compression algorithm for proposed still picture sequence maintaining above 40dB picture quality. Finally we test several DTV using proposed video test pattern.

청각장애 학생의 제빵 기술교육 내용 및 방법의 적합화

양한재,윤병천,권순우 대구대학교 특수교육재활과학연구소 2005 특수교육재활과학연구 Vol.44 No.1

본 연구는 청각장애학교 직업교육으로 제빵 기술 교육을 받는데 있어 이해를 쉽게 하기 위한 방법이 무엇인지를 밝히는데 목적을 두었다. 이를 위해 서울에 위치한 A학교 고등부 3학년에 재학 중인 학생 6명을 대상으로 주1회 5시간씩 실습을 하면서 문제점을 찾아내어 학생들이 쉽고 효율적으로 기술을 익힐 수 있는 방법이 무엇인지 조사하였다. 결과를 종합해 보면 청각장애 학생들이 제빵 실습을 하면서 겪게 되는 문제점을 찾아 내용과 방법의 적합화를 시도한 결과 학생들이 쉽게 적응하였다. The object of this study is to find out what they feel difficulties and how to adapt well themselves to new circumstances in the process of bakery technique education which high school students with hearing impairment received it as vocational education. To achieve goals of this study, the subjects of this study are selected 3 grade, 6 students, who received an bakery technique education five hour, one time for a week. In the process, the researcher tried to grasp difficulties which they feel and how to adapt themselves to new circumstances. In summary, after finding out problems about content and method of vocational education and then, changing for the better it, the findings of this study showed that students with hearing impairment be to easily adapted to confectionery technique education.

전종격동의 융모상피암 부검 1예

양우익,김한겸 中央醫學社 1987 中央醫學 Vol.52 No.10

A 21-year-old male, complaining of dyspnea, expired. An autopsy was performed to clarify, the cause of death. A huge tan tumor mass, measuring 13 x I1 x 7cm, was present at the anterior mediastinum in close anatomic relationship with the thymus. Large vessels around the heart were compressed by the tumor mass and hemopericardium by extensive hemorrhagic necrosis of the tumor was noted. The tumor was diagnosed as choriocarcinoma by histopathologic and immunoperoxidase method using HCG. The cause of death was right heart failure due to compression of large vessels and hemopericardium.

數種의 增量劑 粒度와 增量比率에 따른 尿素樹脂合板의 接着 特性

楊翰承,尹炯雲,李弼宇 서울대학교 농과대학 농업개발연구소 1993 서울대농학연구지 Vol.18 No.2

The purpose of this research was to evaluate and to examine the substitutional feasibility of paper sludge extender instead of wheat flour. As the extending materials, taro flour, paper sludge, wood flour and wheat were selected and dried at 103±2℃ during 24 hours in the drying oven and pulverized into three levels(-50∼+100, -100∼+200, -200∼mesh). The extenders were mixed with urea formaldehyde resin in the ratio of 10, 20 and 30%. After plywoods were manufactured by the above extended ratios, dry and wet shear strength were examined. The results obtained at this research were summarized as follows : 1) In 10% extionsion on -50∼+100 mesh particle size, paper sludge showed the highest dry and wet shear strength among the extenders. 2) As 20% extension, wheat showed the highest value. 3) the shear strength was affected by the particle size and extending ratios, and the shear strength extended by paper sludge powder was sensitively varied with particle sizes and extending ratios. 4) The shear strength extended by taro and wheat flour were less affected by the particle size of extender. Therefore, the particle size of extender would be considered along the extention ratios and extender types.

실증연구를 위한 주택용 태양열 온수기 모니터링 시스템 개발

양동조,김재열,한재호,송경석,김우진 한국공작기계학회 2004 한국공작기계학회 추계학술대회논문집 Vol.2004 No.-

The application of solar energy, in the field of alternative energy, was on the increase tendency. In the case of advanced nations, through continuous R&D, solar hot water heater with high efficiency has been used for the house and the industrial process on business, advanced nations were reached up the experimental stage of solar generation system. But, the actual circumstance of the domestic has been not accomplished the popularization of solar hot water heater and the settlement of it which is the fundamental stage of the solar energy usage. This trouble, the domestic was flooded with small enterprise for producing solar hot water heater, was caused by the popularization and the production without verification of performance. To supply the monitoring program for evaluating solar hot water heater, this research was purpose to improve the technical development of the enterprise for producing solar-heat hot-water-boiler and served as an aid for the enlargement and the popularization on solar energy.

위상 및 음압 레벨제어를 이용한 스테레오 음상 확대에 관한 연구

한찬호,박양우,장주석 경운대학교 산업기술연구소 2001 産業技術硏究論文誌 Vol.3 No.2(A)

Three-dimensional sound is a technique for generating or recreating sounds so they are perceived as emanating from locations in a three-dimensional space. Three dimensional sound has the potential of increasing the feeling of realism in music or movie soundtracks. Three-dimensional sound effects depend on psychoacoustic spectral and phase cues being presented in a reproduced signal. In this paper we propose an effective algorithm for the sound image expansion in television system using stereo image enhancement techniques. In this algorithm, a lower frequency band sound is expanded by phase control and a higher frequency band sound is expanded by cross-talk cancelation. Compared to the other techniques of three-dimensional sound, the proposed algorithm use only two speakers to enhance the sound image expansion, while maintaining the original sound characteristics.

청각장애학생을 위한 제과기술 교육내용 및 방법의 적합성 연구

양한재,권순우,윤병천,박정식 대구대학교 특수교육재활과학연구소 2005 특수교육재활과학연구 Vol.44 No.3

이 연구는 청각장애학교에 재학 중인 고등부 학생들이 직업교육으로 제과 기술 교육을 받는데 있어 어려운 점은 무엇이며, 좀 더 쉽게 적응할 수 있는 방법이 무엇인지를 밝히는데 목적을 두고 실시하였다. 이를 위해서 서울에 위치한 A청각장애학교 고등부 3학년에 재학 중인 학생 6명을 대상으로 주1회 5시간씩 실습을 실시하면서 문제점을 찾아내어 개선 방법을 제시하면서 개선되는 내용을 파악하고, 학생들이 쉽고 효율적으로 기술을 익힐 수 있는 방법이 무엇인지 조사하였다. 결과를 종합해 보면 청각장애학생의 특성을 고려하여 직업교육 내용과 방법의 문제점을 찾아내고, 이를 개선하여 적합화한 결과 청각장애학생들이 쉽게 적응하였다. The object of this study is to find out what they feel difficulties and how to adapt well themselves to new circumstances in the process of confectionery technique education which high school students with hearing impairment received an education as vocational education. To achieve goals of this study, the subjects of this study are selected 3 grade, 6 students, who received an confectionery technique education five hour, one time for a week. In the process, the researcher tried to grasp difficulties which they feel and how to adapt themselves to new circumstances. In summary, after finding out problems about content and method of vocational education and then, changing for the better it, the findings of this study showed that students with hearing impairment be to easily adapted to confectionery technique education.

非均質土層에 대한 Fragment Method에 관한 硏究

韓相賢,梁禹植,白榮植 慶熙大學校 1988 論文集 Vol.17 No.-

A Study is made on the 2-dimensional seepage problems using the fragment method. The method of fragment is an approximate analytical method of solution for any confined flow system of finite depth. The original fragment method is extended to the inclined impervious boundary and computer program is developed to obtain the head loss, discharge, and exit gradient under the dam. Accordingly, the fragment method can be recommend with confidence for practical use. The result is programed and a few case studies are examined.

남성·여성의 혼합DNA에서 Y-STR의 유효성 검토

이양한,신상철,이은정,박정우,구형남,김대열,김윤신 內務部 國立科學搜査硏究所 2002 國立 科學 搜査 硏究所 年報 Vol.34 No.-

급성사지허혈증에 대한임상적 고찰

김광한,권우형,이동식,서보양,권굉보 대한혈관외과학회 2003 Vascular Specialist International Vol.19 No.2