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수동형 전개힌지를 이용한 전개형 우주 구조물의 전개 동특성 해석
최영준,오현웅,최용훈,이경주,Choi, Young-Jun,Oh, Hyun-Ung,Choi, Yong-Hoon,Lee, Kyung-Joo 한국군사과학기술학회 2008 한국군사과학기술학회지 Vol.11 No.3
The deployable space structure is necessary to minimize the satellite volume and launch cost. For the deployment, passive deployment mechanism has widely been used to attenuate a latch shock induced when the structure is just fully deployed. To reduce the latch shock, viscous damper is applied to the passive deployment mechanism and it can control the deployment speed of the structure. In this paper, dynamic analysis of the deployable space structure using the passive deployment mechanism with the viscous damper has been performed. The viscous damping values have been optimized through numerical simulation. The satellite's attitude influenced by pyro activation for the release of the structure has also been investigated.
장골 이식을 동반한 임플란트 수술 후의 합병증; 증례보고
최영준,최원철,Choi, Young-Jun,Choi, Won-Cheul 대한악안면성형재건외과학회 2007 Maxillofacial Plastic Reconstructive Surgery Vol.29 No.4
In a one-stage approach, where the implant installation is performed simultaneously with the iliac bone graft, various complications are observed. The observed complications are as follows; severe bone resorption at the maxillary anterior region and the area adjacent to the nasal cavity, shortage of soft tissue to cover the augmented alveolar bone, difficulties with oral hygiene care caused by the diminished vestibular space and non-esthetic prosthesis. These are good reasons for choosing the two-stage approach over the one-stage approach in spite of all the advantages it has, and should be taken into careful consideration when diagnosing and planning treatment using the one-stage approach.
한방 병원에 경추 통증으로 내원한 환자들의 흉추부 만곡 및 경추부 추간판탈출증의 상관 관계에 관한 보고
최영준,유수빈,문병헌,정재현,윤영웅,김길환,남항우,이차로,Choi, Young-Jun,Yoo, Su-Bin,Moon, Byung-Heon,Chung, Jai-Hyeon,Yun, Yeong-Ung,Kim, Kil-Hwan,Nam, Hang-Woo,Lee, Cha-Ro 척추신경추나의학회 2015 척추신경추나의학회지 Vol.10 No.1
Objectives : This study is planned to classify correlation between thoracic kyphosis angle and prevalence of cervical intervertebral disc. Methods : We Measured the thoracic kyphosis angel of the 110 men and 179 women patients with neck pain in 00 Korean Medicine Hospital. We use Cobb's angle method and Thoracic cage dimension method for measuring the thoracic kyphosis. And We use Magentic Resonance Imaging(MRI) for classifying the patient who has cervical intervertebral disc or not. Results : 1. There was statistical difference on the thoracic cage dimension with gender(P<0.001), while there was no statistical difference on Cobb's angle with gender(P=0.882). 2. Age and thoracic cage dimension(r=0.383) is statistically more correlative than age and cobb's angle(r=-0.59). Conclusions : 1. Thoracic cage dimension and gender, Thoracic cage dimension and age were statistically concerned on patient who has neck pain, while Cobb's angle had no statistical correlation with age and gender. 2. There was no statistical difference on the Cobb's angle and Thoracic cage Dimension between patient who has one or more cervical disc herniation(Protrusion disc, Extrusion disc) segment and patient who didn't have cervical disc herniation(Protrusion disc, Extrusion disc) segment.
무용, 영상 그리고 음악을 연결하는 상호작용 행위예술 기술 현황과 향후의 미래 고찰
최영준(Young jun choi) 청운대학교 방송예술연구소 2006 미디어와 공연예술연구 Vol.1 No.-
무용, 영상 그리 고 음악이 컴퓨터에 의해 종합지어지는 예술의 형태는 더 이상 낯선 장르 가아니다. 더욱이 무용과 영상, 영상과 음악, 음악과 무용 간에 얼마만의 interactivity가 구현되었느냐에 많은 작가들의 관심은 집중 되어 지고 있으며 이러한 새로운 기술 구현이 작품의 완성도로 비추어지는 경우 도 간혹 생긴 다. 그리하여 이러한 기술의 현황을 살펴보고 발전 방향을 고찰 해 보는 것이 아티스트들에게는 매 우 흥미로운 논쟁거리가 되고 있다. It is not strange anymore that we combine dance, video and music to make a new form of art. Especially artists focus the completion of interactivity between dance and video, video and music, music and dance. Sometimes these smooth accomplishments of the technologies could give the artist a big achievement. Thus, it is a good topic to artist to review current and future technologies.
중고령층의 자영업 경험이 복지인식에 미치는 영향에 관한 연구
최영준(Choi, Young Jun),이승준(Lee, Seung Jun) 한국사회정책학회 2015 한국사회정책 Vol.22 No.1
베이비붐 세대 중고령층이 조기에 주된 일자리에서 퇴직하면서 자영업의 과잉진입과 조기폐업 등이 사회적 이슈가 되고 있다. 또한, 중고령층의 자영업 실패가 불안한 노후로 이어지는 것에 대한 우려도 높아지고 있다. 이와 관련하여 자영업 진입이나 퇴출과 관련된 연구들과, 노후소득보장이나 빈곤 등에 관한 연구들이 진행되었다. 하지만 자영업의 동태적인 경험이 이들의 복지인식에 어떠한 영향을 미치는지에 대한 연구는 수행되지 못하였다. 사회정책이 국민의 지지가 중요한 변수이며, 핵심적인 유권자 계층인 중고령층의 상당수가 자영업을 경험한다는 차원에서 이들의 복지인식은 복지국가 정치적 지속가능성에 중요한 함의를 가진다. 이에 본 연구에서는 2007년 경제위기라는 특수적 상황 이후인 2008년과 2009년에 새롭게 자영업에 진입한 이들의 사회경제적 특성을 한국노동패널과 한국복지패널을 통하여 파악하고, 이러한 경험이 이들의 복지인식에 어떠한 변화를 주었는지를 추적하고자 한다. 새롭게 자영업에 진입한 이들의 변화를 지속적으로 자영업에 있었던 집단 및 상용직에 있었던 집단과 비교함으로써 자영업 경험이 주는 복지인식 변화를 명확히 하고자 한다. 본 연구를 통해서 자영업의 불안정성을 파악하고, 사회정책의 사각지대에 놓인 자영업의 경험이 사회정책에 대한 부정적 인식을 강화시킴을 규명하였다. The early retirement from the primary job and the excessive entry to the self-employment has become one of the serious social problems. After the excessive entry, it is reported that many of them failed their business, which would lead to the economic insecurity of their old-age. Much has been written about the entry and the exit of the self-employment, but there are few studies on how the vulnerability of the self-employed has influenced their welfare attitudes. Given that the political sustainability of the welfare state relies on people’s supports and many of middle and older people have experienced self-employment, it is important to research the effect of self-employed experiences on welfare attitudes. In this context, this research aims to analyze experiences of the new self-employed after the financial crisis in 2007 and to analyze how these experiences have affected their welfare attitudes. It will use the Korean Labor Panel and the Korea Welfare Panel for the analysis. This study will discuss the vulnerability of the self-employed and will argue that the experience of the self-employed tend to decrease welfare supports rather than increase.
콘크리트용 혼합골재 표준화를 위한 실태 조사에 관한 연구
최영준(Choi Young Jun),조영근(Cho Young Gun),문규돈(Moon Gyu Don),최영철(Choi Young Chul) 표준인증안전학회 2012 표준인증안전학회지 Vol.2 No.1
Recently, ready-mixed concrete companies are using disqualified aggregates which lack in both grade and grain shape due to the shortage of natural aggregate. However, still there aren t any clear and accurate blending method and quality standard existing. In this paper, we surveyed ready-mix concrete companies about the quality level and blending of aggregates in order to standardize the blended aggregates on concrete. Survey results indicated that blending of aggregates is common for the aim of quality improvement, and usually grade and grain shape were the main cause of the blending. To sum up the ready-mixed concrete companies view point, once the blended aggregate s quality standard is set, the supply shortage and quality problem of aggregates can be solved.
최영준(Young-Jun Choi),전희(Hee Chun),김학주(Hark-Joo Kim),이시영(Si-Young Lee),염성현(Sung-Hyun Yum),최영하(Young-Ha Choi),신용습(Yong-Seop Shin),정두석(Doo-Seok Chung) (사)한국생물환경조절학회 2007 생물환경조절학회지 Vol.16 No.1
참외의 저온기 무가온 시설재배에서 원적외선 흡수율이나 무적성 등의 물리적 특성을 향상시킨 필름 피복이 참외 과실품질에 미치는 영향을 조사하기 위하여 과실 성분을 조사하였다. 일반 PE필름과 기능성이 추가 된 5가지의 필름을 6동의 하우스에 피복하여 성주지역 2곳에 각각 설치한 후 재배하였다. 하우스 내부 온도는 높은 적외선 흡수를 보였던 필름인 J-l과 J-2에서 K-3에 비해 약 2~5℃정도 높았다. 과실의 β-carotene 함량과 당함량은 기능성 필름과 일반필름에서 유의성 있는 차이를 보여 J-l, J-2, J-3 및 K-l에서 높게 나타났는데 이것은 필름의 특성에 따른 보온효과 때문인 것으로 생각된다. 성숙후 단맛을 좌우하는 sucrose 함량도 기능성 필름에서 높았는데 이로 인해 당도도 향상되는 결과를 보였다. Ascorbic acid 함량은 투광량과 보온성이 낮은 K-2에서 더 높은 경향을 보였고 무기원소 함량은 처리 간에 차이가 없었다. 이상의 결과는 참외의 저온기 단동 하우스재배에서 보온성과 투광성을 향상시킨 필름을 피복함으로써 참외 과실의 품질을 일부 개선할 수 있음을 시사하였다. This study was conducted to investigate the effect of functional cover film on oriental melon fruit quality under unheated plastic greenhouse cultivation in cold period. The 6 kind of films having different characteristics were covered at plastic greenhouses and oriental melon seedlings were cultivated at 2 regions of Seongju, respectively. The air-temperatures in plastic greenhouses of J-1 and J-2, having high infrared absorption rate, were about 2~5℃ higher than K-3. The contents of β-carotene and sugar of fruit showed significant difference between functional and normal films. The sucrose, determining a sweetness during maturation, and soluble solids content of fruits cultivated in J-1, J-2, J-3, and K-1 were higher than those of K-2 and K-3. Ascorbic acid of fruits was highest in K-2 having low light transmission rate and thermo-keeping capacity. There was no significant difference in mineral content among all of cover films. These results indicated that the use of functional greenhouse covering films could improve fruit quality such as β-carotene and sugar content of oriental melon.
최영준(Young Jun Choi),김화룡(Hwa Ryong Kim) 한국사회체육학회 2012 한국사회체육학회지 Vol.0 No.50
The purpose of this study is to present theoretical evidence that can apply usefully to determine or establish strategic priority by evaluating selective attributes importance and satisfaction of taekwondo gymnasium using IPA method. Subjects were the 487 people who registered taekwondo gymnasium children`s parents in Seoul and Gyeonggi Province. Collected data were conducted several tests followed: frequency analysis, factor analysis and t-test using SPSS WIN Version 18.0 Program. As a result of these data analysis, the conclusions of this study are as follow. First, the variables that belong to 1 quadrant were safety condition, clean condition, sports facilities and maintenance of educational apparatus, air conditioning and heating, ventilation, stability of studio surrounding, harmful environment of studio surrounding, cleanliness of studio surrounding. Second, the variables that belong to 2 quadrant were instructor`s sincerity, instruction career, educational contents faithfulness, professionalism, kindness, personality and behavior, leadership, planning, interest, contents of taekwondo program, intimacy of taekwondo studio. Third, the variables that belong to 3 quadrant were variety of taekwondo program, age of instructor, sex of instructor, discount system of taekwondo goods, image of taekwondo studio, vehicle, distance. Fourth, the variables that belong to 4 quadrant were fitting room, shower room, lounge, lighting state, fully furnished, reputation, academic background of instructor, fee.