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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.
건설자재 표준화 및 정보화 기반구축을 위한 수요자 의식 조사 연구
최영준 ( Choi Young Jun ),이준석 ( Lee Jun Seok ),조영근 ( Cho Young Keun ),정상화 ( Jung Sang Hwa ),채성태 ( Chae Seong Tae ) 한국구조물진단유지관리공학회 2007 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.11 No.1
This study has been conducted to present reform recommendations for standardization of construction materials, based on a study on the investigation of demander's consciousness for construction materials quality and information standardization in korea. Upon investigation, it was found that the quality of korea industrial standards (KS) was given 67 points by respondents. In addition, 38% of the respondents showed that they had problems with a lack of standardized information. Good examples were found to be non-standardized materials, e.g. admixtures, waterproof agents, reinforcing fibers, concrete, aggregates, adhesives, wood, temporary materials, thermal-insulating materials, etc.
최영준 ( Choi Young Jun ),구교준 ( Koo Jun ),윤성열 ( Yun Sungryul ) 한국사회보장학회 2018 사회보장연구 Vol.34 No.4
21세기 지식기반경제에 가장 핵심적인 키워드로 등장하고 있는 혁신에 대한 정책적 관심이 국내외에 증가하고 있다. 혁신은 향후 고령화가 빠르게 진행되는 한국사회와 경제에서 성장과 생산성 향상을 견인하는 핵심적인 역할을 할 것이라고 예상되고 있다. 이러한 배경에서 본 연구는 사회정책과 복지국가가 혁신(innovation)에 미치는 영향을 탐색적으로 분석하는 것을 목표로 하고 있다. 이미 복지국가와 경제성장에 대한 연구는 상당히 진행이 된 바 있지만, 복지국가나 사회정책과의 관계는 거의 연구가 되지 않았다. 이에 본 연구에서는 기존의 혁신, 창의성, 행복, 기업가정신 등에 대한 문헌들을 광범위하게 고찰하면서 복지국가와 혁신이 어떠한 관계가 있는지에 대한 탐색을 진행하고자 한다. 이후 문헌을 통해 도출된 둘 간의 관계에 대해서 국가비교 데이터를 활용하여 탐색적 분석을 실시함으로서 실증적 증거를 제시하고자 한다. 본 연구에 따르면 복지국가는 혁신에 종속된 것이 아니며 혁신이 잘 이루어지기 위해서 복지국가가 역시 필요조건임을 밝히고 있다. 특히, 보편성과 탈상품화 수준이 적정하게 갖추어진 복지국가에서 개인이 창의성과 혁신활동이 더욱 증진될 것이라는 결론을 도출하였다. Policy-makers have been paying full attention to innovation, which has been a buzzing word in the modern knowledge-based economy. In the rapidly ageing Korean society, innovation and entrepreneurship are expected to deliver economic and productivity growth. In the context, this research aims to explore the relationship between the welfare state and innovation. Much has been written about the relationship between the welfare state and economic growth, but few studies have investigated the causality between innovation and the welfare state. First, this study extensively reviews the literature on innovation, creativity, happiness, and entrepreneurship, and explore the research question. Second, using some cross-national data on innovation and social policy, it analyses the causality between the welfare state and innovation. We argue that the welfare state is not simply subordinate to innovation and productivity growth, but the universal welfare state with a high level of decommodification could consolidate the foundation for enhancing individuals’ creativity and innovation.