석탄폐석 및 광재의 유해물질 침출특성 연구

우영국,강성환,임재명,한동준,김병욱 강원대학교 석재복합신소재제품연구센터 1996 석재연 논문집 Vol.1 No.-

광산에서 배출되는 광재폐기물은 산과 계곡에 투기 또는 매립되어 강우등에 의하여 주변 소하천을 오염시키고 있다. 따라서 본 연구는 광재의 물리적특성과 이화학적 특성을 조사하고 회분식과 칼럼식실험을 수행하여 오염물질의 침출특성을 고찰하고자 하였다. 실험결과, 다음과 같은 결론을 얻을 수 있었다. 1) 광재는 점토질 및 실트질의 크기를 지니고 있으나 점착력과 소성적 성질이 없는 사질토의 특성을 지니고 있다. 2) 광재의 투수계수는 대부분 10(???)³-10(???)cm/sec의 범위이며, 일반 사질토의 투수계수보다 낮음을 알 수 있었다. 3) 회분식과 칼럼식 용출시험의 결과, 대상 광산의 광재폐기물 일부에서 기준치 이상의 중금속농도가 침출되었으며, 이에대한 방지대책의 심각성을 알 수 있었다. 4) 광재 폐기물의 칼럼식 용출시험 결과 kg폐기물 당 인공강우 투여량 비가 증가할수록 침출수의 중금속 및 유해물질 농도는 크게 감소되어 어느정도 진행된 이후부터는 대부분 일정한 농도가 유지되나, 산성강우시 침출정도 및 침출시간은 지속되는 것을 알 수 있었다. 5) 광재는 많은 중금속과 유해물질을 함유하고 있으나 양적인면에서 자원화의 가치가 높을 것으로 판단된다. 따라서 광재내의 자원회수, 건설 재료등의 재활용및 자원화 연구가 필요하다. Tailing wastes producedat metal mines have been disposed of by dumping or landfiling in depression. Mine drainage developed at pile of the tailing wastes has high concentrations of various kinds of heavy metals and harzardous materials, and these contaminants are leached out from the tailing wastes by water infiltration or when they collapse. In this study, both batch test and column test were performed in order to investigate the physical and leaching characteristics of tailing wastes. The batch test results were compared with those by EPT and DLT, and column test was carried out at acidic and neutral pH ranges. The results showed that high concentrations of heavy metals and sulfate were contained in the leachate of the some tailing wastes. In column test, levels of heavy metals in the leachate produced during the initial rainfall period were found higher.

NF3D 환경의 모바일 3D 레이싱 게임 엔진 구현

우상혁,박병관,어윤,박동규 국립7개대학공동논문집간행위원회 2005 공업기술연구 Vol.5 No.-

Advances in mobile hardware enables high-end and high quality 3D mobile game. Mobile 3D game engine is a development library that handles graphical rendering, manager the game, the images, input, output, and general functions like AI, collision detection and other rendering facilities. Our objectives are implementing global functions existing on a mobile racing game in a single core block, separating graphical routines and game logic on Mobile environment. In this paper, we will survey current state of the art of Mobile 3D platform and show our mobile racing game on NF3D environment.

스포츠 에어로빅시 High Kick 동작의 운동학적 분석

우병훈,인희교,이수재 한국운동역학회 2001 한국운동역학회지 Vol.11 No.3

This study serves the purpose of understanding the principles of kicking moves through kinematics analysis on elite sports aerobic athletes making the movement of high kicking. The study also intends to not only help instructors and coaches understand the accurate move of high kick and make a better judgement for athletes but also lay a basic resource for them to rely on. To accomplish all this, the time span of the each phase, the displacement of COG, the velocity of left/right forefoot, the angle displacement of left/right hip joint and the angle displacement of left/right ankle joint have been studied. The conclusions were as follows; 1. It took less time at phase 3(0.40sec) and phase 5(0.40sec) of returning the leg than at phase 2(0.56sec) and phase 4(0.43sec) of kicking up. 2. The displacement of COG was low at phase 1, 3, 5(103.02±5.70, 95.33±2.45, 96.66±3.20 cm) and high at phase 2(111.18±9.97) and phase 4 (111.61±5.62 cm). 3. About the velocity of left/right forefoot, kicking up the right foot was faster than returning it at phase 1-2(1081.63±40.62an/sec) and phase 2-3(992.92±45.68 cm/sec). With the left foot, kicking up was faster than returning at phase 3-4(1116.25±63.46cm/sec) and phase 4-5(1043.63±40.62cm/ sec). 4. The left and right angle displacement of hip joint showed the maximum extension at phase 1(174.4±52.36, 162.6±05.40deg/sec), phase 3 (170.66±5.94, 165.89±4.36deg/sec), phase 5(166.18±4.83, 157.05±3.59deg/sec), phase 2(26.19±5.40deg/sec) showed the minimum angle of the right angle and phase 4(27.67±5.31deg/sec) showed the minimum of the left angle. 5. In the left and right angle displacement of knee joint, the angle displacement on the right knee joint showed the maximum extension at phase 1, 2, 3, 4(169.10±2.96, 169.91±6.20, 153.14±6.32, 162.11deg/sec) and flexion at phase 3(140.45±10.37deg/sec). The left knee joint showed the maximum extension at phase 1, 3, 4, 5(169.15±4.25, 157.99±10.82, 172.14±3.06, 168.72deg/sec) and flexion at phase 2(148.17±9.64deg/sec). 6. The angle displacement on the right ankle joint showed flexion at phase 1, 3, 4, 5(125.15±4.81, 101.66+2.80, 102.88±8.89, 106.27±5.76deg/sec) and the maximum extension at phase 2(152.22±5.18deg/sec) The left ankle joint showed flexion at phase 1, 2, 3, 5(104.90±48.10, 116.06±15.84, 106.55±8.84, 118.79±6.89deg/sec) and showed the maximum extension at phase 4(153.57 ±4.65deg/ sec).

리듬체조시 Balance 동작의 운동학적 분석

우병훈,인희교 한국운동역학회 2000 한국운동역학회지 Vol.10 No.1

The purpose of this study was to analyze kinematics variables on basic information for the improving the skill of balance attitude with understanding principle and development of balance attitude. For this study, national champion skilled 4 female rhythmic sport gymnastics were selected as subjects, and 3-demensional coordinates computation was used to DLT(Direct Linear Transformation) method of Walton(1981). 1. As for each phase performance time, all subjects are mo difference from phase 1 to phase 3, but phase 4 must stop attitude almost 0.433sec like as JEJ, CYR. To phase 5, during right leg gather, performance time act 0.267sec like as JEJ. 2. To displacement of COP, phase 1 is resulted lowest, and in phase 2, phase 3, phase 4 order to be high. And phase 5 is resulted again to be low. 3. To angle displacement of left heel , phase 1 is prepare position, and phase 2 is high, from phase 3 to phase 4 is resulted average 75.0. JEJ is resulted very ideal position to 85.5˚ 4. To angle displacement of right knee, phase 1 is prepare position, and phase 2 is resulted generally knee angle to be small, and phase 3 and phase 4 is resulted maximal extension to knee angle. CEJ is resulted ideal position from phase 2 to phase 5. To angle displacement of left knee, phase 1 is prepare position, and phase 2 is that support left leg and knee deep flexion during rising left leg to horizontal plane, phase 3 is extended maximal angle during maximal extension to knee angle of left support leg, phase 4 is decreased knee angle when right left is maximal rising and then resulted little power of supporting leg. But LNY is resulted very ideal left knee angle. 5. To displacement of hip joint angle, phase 1 is prepare position, and phase 2 is reduce angle during rising right leg to horizontal plane as hop joint is resulted by complex. When knee angle of left support leg is maximal extension to phase 3 and right leg is rising maximal to phase 4, the grater this angle magnitude to hip joint and then physical position straightly resulted. CEJ is that phase 4 is resulted 116.6˚ 6. To right toe velocity, toe velocity is very fast during right leg is down. Phase 1 is prepare position, and phase 2 is fast toe velocity during rising right leg to horizontal plane, phase 3 and phase 4 is resulted stop attitude to slow toe velocity. To summarize above, for fast right foot performance, accurate stop attitude and hip joint little complex, I think that performed very ideal position and effective motion as a lot of flexibility exercise training.

심인성 뇌색전 환자에 있어서의 일차적 또는 이차적 뇌졸증 예방실태

윤병우,김병건,노재규 대한신경과학회 1996 대한신경과학회지 Vol.14 No.1

1996년과 1999년 경기지역 초등학교 학생들에서 유행성이하선염에 대한 면역도 조사

나병국,이주영,고운영,이진수,신구철,이주연,최보율,기모란,양병국,강춘,김우주,김지희 대한감염학회 2001 감염 Vol.33 No.3

Background : Although massive use of live attenuated mumps virus vaccines successfully reduced the incidence of mumps virus infection worldwide, mumps outbreaks have not been completely eliminated, even in vaccinated populations. In recent years, the incidence of mumps has been remarkably increased in Korea. This study was designed to evaluate the recent seroprevalence rate of mumps IgG among children in Kyonggi province at 1996 and 1999. Methods : Study population included students from 8 elementary schools in Kyonggi province. Serum samples were collected twice at 1996 and 1999 and tested for mumps-specific antibody by enzyme-linked immunosorbent assay (ELISA). We also conducted a questionnaire survey on the parents and collected the records including history of vaccination and mumps infection. Results : The seropositive rates against mumps were 89.47% and 89.74% at 1996 and 1999, respectively, and they were not significantly different when compared to age, sex, and region. Although the first vaccination rates were 92.17% and 92.25% at 1996 and 1999, respectively, the second vaccination rates were only 37.89% and 38.03% at 1996 and 1999, respectively. Infection rate showed no significant difference between vaccinated groups and nonvaccinated gropus. Seropositive rate of infected group was higher than that of noninfected group but it was not significantly different between the vaccinated and the nonvaccinated. Conclusions : This study showed the seropositive rate and vaccination against mumps in children. There were no significant relationships between vaccination and infection. Therefore, it seems likely that the vaccination is not fully protective against mumps infection. This study will be helpful for the establishment of guideline for prevention and treatment of mumps in Korea. (Korean J Infect Dis 33: 157∼164, 2001)

廣告露出度가 大學 브랜드 態度와 選擇意圖에 미치는 影響에 關한 硏究

유병우 瑞逸大學 1999 論文集 Vol.17 No.-

100m 단거리 출발 구간에 대한 운동학적 분석

이강우,강관희,안병석 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

The purpose of this study was to find the most important kinematic parameters of the starting phase. For three dimension motion analysis, Four video cameras used to take a picture the man's high school department final game in 33th spring season junior and higher school athletic contest. The analysis subjects choose from rank 1 to 5 in the final game. The kinematic variables analyzed the time, velocity ad angles about three stride. The result were as follows; 1) For the faster velocity in the starting phase, the subjects appeared to do landing in a short stride on the first foot and the support time after landing. 2) For the faster velocity in the starting phase, the subjects appeared to do take a slowly change in a front lean angle of the trunk during stride. 3) For the faster velocity in the starting phase, The subjects appeared to do increase rotation force through a fast flexion and extension in the hip and knee joint. Especcially, all the subjects appeared to do increase a fast flexion and extension in more the right leg than the left leg.

獨占的優位의 韓國 投資企業에 關한 小考

兪炳祐 瑞逸專門大學 1993 論文集 Vol.11 No.-

실시간 문자 및 모델번호 인식기술

심병균,이우송,Nguyen Van Quyet,Nguyen Huu Cong,한성현 한국공작기계학회 2008 한국공작기계학회 춘계학술대회논문집 Vol.2008 No.-

The purpose of this research is to develop the robot vision technology based on pattern recognition for non-contacting inspection optical lens slant or precision parts, and including external form state of lens or electronic parts for the performance verification, this development can achieve badness finding. And, establish to existing reflex data because inputting surface badness degree of scratch's standard specification condition directly, and error designed to distinguish from product more than schedule error to badness product by normalcy product within schedule extent after calculate the error comparing actuality measurement reflex data and standard reflex data mutually. Developed system to smallest 1 pixel unit though measuring is possible 1 pixel as 37㎛×37㎛ (0.1369×0-4mm²) the accuracy to 1.5×10^(-4)mm minutely measuring is possible performance verification and trust ability through an experiment prove.