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최준현,이정후,윤용순 한국융합학회 2020 한국융합학회논문지 Vol.11 No.8
Rheumatoid arthritis (“RA”), whose characteristics are chronic inflammation and chronic pain, accompanies autonomic nervous system(ANS) dysfunction. In particular, ANS dysfunction in patients with chronic musculoskeletal pain was found to have increased the local pain intensity while lowering the pain threshold, thereby negatively influencing pain. It is reported that thermo-spinal massage affects relief of chronic pain and recovery of ANS in patients with chronic musculoskeletal pain. Therefore, we report a case of rheumatoid patients with chronic pain and ANS dysfunction, who experienced recovery of ANS dysfunction and pain reduction by applying thermo-spinal massage treatment.
TRT Pose를 이용한 모바일 로봇의 사람 추종 기법
최준현,주경진,윤상석,김종욱,Choi, Jun-Hyeon,Joo, Kyeong-Jin,Yun, Sang-Seok,Kim, Jong-Wook 대한임베디드공학회 2020 대한임베디드공학회논문지 Vol.15 No.6
In this paper, we propose a method for estimating a walking direction by which a mobile robots follows a person using TRT (Tensor RT) pose, which is motion recognition based on deep learning. Mobile robots can measure individual movements by recognizing key points on the person's pelvis and determine the direction in which the person tries to move. Using these information and the distance between robot and human, the mobile robot can follow the person stably keeping a safe distance from people. The TRT Pose only extracts key point information to prevent privacy issues while a camera in the mobile robot records video. To validate the proposed technology, experiment is carried out successfully where human walks away or toward the mobile robot in zigzag form and the robot continuously follows human with prescribed distance.
빅데이터 사회에서 정보 영향력에 관한 탐구적 연구 - 통계 정보와 사례 정보 중심으로 -
최준현,서동백 한국경영정보학회 2019 한국경영정보학회 학술대회논문집 Vol.2019 No.11
본 연구는 빅데이터 사회에서 발생하는 정보의 유형을 ‘통계정보’와 ‘사례정보’ 형태로 구분 짓고, 서로 다른 성격을 가진 정보가 대중들에게 어떤 영향력을 미치는지 탐색적으로 연구하고자 한다. 정확하고 신뢰성이 높은 ‘통계정보’ 는 과거 의사결정 과정에서 절대적으로 우위를 점하는 도구였다. 하지만 정보통신기술의 발달로 나타난 ‘사례정보’ 는 우리 사회에서 큰 파급효과를 낳고 있다. 따라서 ‘ 통계정보가 사례정보보다 신뢰성이 높지만, 사람들은 개인적으로 경험하는 다양한 일화적 사례정보에 훨씬 더 민감하게 반응한다’ 라는 관찰에 근거하여 탐색적으로 통계정보와 사례정보에 대해 사람들의 인식을 알아보려 한다. 이를 위해 국내외 대학생들을 대상으로 설문 조사를 하여 분석했다. 이후 연구를 통해 얻은 의의와 한계를 본 논문에서 밝히려 한다.
최준현 ( Junhuyn Choi ),김완태 ( Wantae Kim ),김상배 ( Sangbae Kim ),배인국 ( Inkook Bae ),서주범 ( Joobeom Seo ) 한국폐기물자원순환학회(구 한국폐기물학회) 2020 한국폐기물자원순환학회 춘계학술발표논문집 Vol.2020 No.-
Arsenic is one of the most dangerous inorganic pollutants, causing serious health and environmental emergencies in many areas of the world. For this reason, all over the world, arsenic concentration in soil is being rigorously regulated. In this study, a flotation process is proposed for separating the arsenicbearing minerals to recycle the soil surrounding the Janahang refinery in South Korea, which contains a high level of arsenic. To maximize the arsenic removal, several experimental parameters were systematically investigated. X-ray diffraction revealed that the contaminated soil was mainly composed of arsenopyrite (FeAsS), arsenic trioxide (As<sub>4</sub>O<sub>6</sub>), arsenic pentoxide (As<sub>2</sub>O<sub>5</sub>), and quartz (SiO<sub>2</sub>). Flotation experiments with various concentrations of potassium amyl xanthate (PAX) showed that arsenic removal increased with increasing PAX concentration. The additions of activators (Na<sub>2</sub>S, CuSO<sub>4</sub>, Na<sub>2</sub>S+CuSO<sub>4</sub>) in pulp pH greatly increased the arsenic removal. In addition, oil agglomerate flotation was conducted to enhance the arsenic removal by improving the separation of fine particles. The results showed that arsenic removal increased with increasing non-polar oil concentration. Based on the results obtained from the optimization tests, a flotation process by which the arsenic-contaminated soils can be recycled was successfully designed.
5% 여성 Dummy 적용에 따른 KNCAP 대응 방안에 대한 연구
최준현(Jun-hyun Choi),김봉석(Bong-seok Kim),최환준(Hwan-jun Choi) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
This study is not only to evaluate the injury of 5th percentile female dummy with respect to New KNCAP, but also to achieve the KNCAP target using methodological approach of variable restraint systems. In this paper, investigating dominant fatal factors using CAE analysis and optimizing restraint systems variations to reduce Head, Neck injury and Chest deflection are explained.
김사덕,최준현,Kim, Sa-dug,Choi, Joon-Hyun 국립문화재연구소 2013 保存科學硏究 Vol.34 No.-
봉화 북지리 마애여래좌상은 거대석불로 중립질의 복운모화강암으로 구성되어 있다. 불상에 대한 비파괴 정밀진단 결과, 표면박리 박락, 입상분해 등 다양한 표면손상이 확인되며 물성 또한 취약한 것으로 확인되었다. 또한 사면안정성 평가 결과 전도파괴, 평면 및 쐐기파괴 등의 가능성 제기되었다. 따라서 과학적 보존처리를 통해 암석 물성 강화와 구조적 안정성을 회복시켰으며 기존 보호각이 통풍이 원활치 못한 점과 누수문제 등이 확인되어 이를 보완할 수 있는 보호각으로 개축하였다. Bukjiri Seated Rock-carved Buddha of Bonghwa is a rock carved Buddhist Statues on the Two-Mica Granite with mid-size grains. The non-destructive diagnosis on the statues showed that their surfaces had been damaged by exfoliation or granular decomposition and their physical properties are also found to be weak. In addition, the evaluation of slope stability showed that there are the possibility of toppling failure, or planar and wedge failure. So, we have recovered the physical strength and structural stability of rock using the scientific conservation treatment. We also founded that the existing shelter was damaged by the poor ventilation and water leakage. So we constructed it in a way that there is no water leakage while the ventilation is good.