유비쿼터스 지능공간에서 uDA 상황인지 미들웨어 개발

오승환(Seong-Hwan Oh),이성형(Sung-Hyung Lee),김재현(Jae-Hyun Kim),노병희(Byeong-Hee Roh) 한국통신학회 2007 한국통신학회 학술대회논문집 Vol.2007 No.7

임상원저 : 악골낭종에 대한 임상적 연구

오승환(Sung Hwan Oh),이동근(Dong Kuen Lee),김태성(Tae Seong Kim),민승기(Seung Ki Min),문철(Cheol Moon) 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.3

This clinical study was made of 214 cases of the jaw cysts which were diagnosed histopathologically in the Department of Oral and Maxillofacial Surgery, Wonkwang University Dental Hospital from Jan. 1, 1991 to Dec. 31, 1998. Medical records, radiographs, histopathological reports of 214 cases with jaw cysts were retrospectively reviewed. The results were as follows: 1. Among the total patient of 214 cases, male were 143 cases, and female are 71 cases, male predominated by the ratio of 2.04. 2. The periapical cysts and the dentigerous cyst are the most common cyst, irrespective of 116 cases (54.2%) and 58 cases (27.1%). 3. The periapical cyst has no gender prediction, male were 70 cases and female were 54 cases, the mean ages were 39.3 years (SD=18.4). The most common involving teeth were maxillary anterior teeth (59.7%). 4. The dentigerous cyst predominantly occurred in third decade (18 cases: 31%), and the mean ages were 31.9 years (SD=14.8). Dentigerous cysts predominantly occurred in male by the ratio of 7.29 (male: 51 cases, female: 7 cases). Maxillary anterior teeth (43.1%) and mandibular molars (32.8%) were most frequently involved. 5. The odontogenic keratocyst predominantly occurred in second and third decade and mean ages were 23.5 years (SD=17.2). The mandibular molars (60%) were most frequently involved. 6. All nasopalatine cyst occurred after fourth decade, mean ages were 49.5 years (SD=10.4). In the gender incidence of nasopalatine cyst, 1 case occurred in female and 10 cases occurred in male. 7. In the surgical intervention of jaw cyst, cyst enucleation and marsupialization performed in 156 cases. Cyst enucleation with bone graft performed in 58 cases and iliac autogenous bone grafts most frequently performed in 29cases. 8. The diameter range of cyst enucleation with bone graft were from 15mm to 120mm with a cyst diameter of 33.3mm. (SD=15.2) The diameter range of cyst enucleation and marsupialization were from 7mm to 82mm with a cyst diameter of 20.4mm. (SD=9.0)The diameter of cyst enucleation with bone graft were significantly greater than diameter of cyst enucleation. (p<0.05) 9. Post-operative complications occurred in 9 cases (15.5%) in which cyst enucleation with bone grafts performed and occurred in 31 cases (19.9%) in which cyst enucleation.

안면 비대칭 환자에서 Cone Beam Computed Tomography를 이용한 하악골 해부학적 변이의 분석

박성원,오승환,이재인,Park, Seong-Won,Oh, Sung-Hwan,Lee, Jae-In 대한악안면성형재건외과학회 2012 Maxillofacial Plastic Reconstructive Surgery Vol.34 No.1

Purpose: The study was performed to compare patients with anatomical variations in facial asymmetry with patients in the normal range using cone-beam computed tomography (CBCT) and to take the preoperative condition into consideration in the case of a sagittal split ramus osteotomy (SSRO). Methods: The study was conducted on 46 adult patients composed of 2 subdivided groups, an asymmetry group (n=26) and a symmetry group (n=20). The asymmetry group was divided between patients with hemimandibular hyperplasia (HH, n=8) and hemimandibular elongation (HE, n=18). Using cross-sectional computed tomography images, the thickness of cancelleous bone in the buccal area of the mandible, thickness of buccal cortex in the buccal aspect of the mandible, thickness of cancellous bone in the inferior aspect of the mandible, thickness of buccal cortex in the inferior aspect of the mandible, and cross-sectional surface area of the mandible were measured. Results: In the asymmetry group, the cross-sectional area of the mandible including the inferior alveolar nerve positioned on the affected side was significantly different from the symmetry group. Thickness of cancelleous bone in the buccal aspect of the mandible, thickness of cancelleous bone in the inferior aspect of the mandible, and cross-sectional surface area of the mandible in the affected site of hemimandibular hyperplasia was significantly smaller than in the symmetry group. Conclusion: The inferior alveolar nerve runs lower and in a more buccal direction and shows a smaller cross-sectional surface of the mandible in the hemimandibular hyperplasia patients with asymmetry.

새만금 지역 지반의 변동성 분석

허준 ( Joon Heo ),김성필 ( Seong-pil Kim ),박진현 ( Jin-hyeon Park ),전상옥 ( Sang-ok Jeon ),강병윤 ( Byung-yoon Kang ),오승환 ( Seung-hwan Oh ) 한국농공학회 2016 한국농공학회 학술대회초록집 Vol.2016 No.-

결정론적 방법의 한계를 극복하기 위한 노력이 최근 국내외에 활발히 진행되고 있다. 최근에는 결정론적인 안정해석과 확률론적인 안정해석 방법을 같이 사용하는 경우가 많이 행하여지고 있다. 이는 지반강도 정수 설정이 안전율 산정의 결정적인 결과를 나타내고 있으므로 지반의 불확실성을 하나의 대표값으로 표현하여야 하는 문제점이나 약점을 보완하기 위한 방법이다. 확률론적인 해석 방법에서는 지반 물성치의 분산성 및 인위적인 오차에서 나타나는 불확실성을 보다 합리적으로 고려할 수 있다. 이중 신뢰성 해석(Reliability Analysis)이란 확률적인 접근방법에 의한 해석으로 토질 정수들이 갖고 있는 불확실성을 고려하기 위하여 각 정수들을 분산성을 갖는 확률 변수로 취급하여 해석하는 방법이다. 그 결과 신뢰성 해석은 파괴의 가능성을 정량적인 파괴확률(probability of failure)로서 산정하게 되며, 확률변수의 민감도에 따른 파괴확률의 변화도 알 수 있다. 따라서 불확실성을 정량적으로 나타내는 신뢰성 해석은 정성적인 개념의 안전계수를 이용하는 결정론적 해석을 보완할 수 있다. 신뢰성 기반의 해석과 설계기법이 가지는 장점에도 불구하고 공간 변동성이 충분히 고려되지 않으면 지반 물성의 변동성을 과대평가하게 되며 예측한 지반 거동의 불확실성을 확대하는 측면이 있다. 본 논문에서는 새만금 지역의 지반조사 자료 분석을 통해 통계적 특성치를 검토하고, 각 지반자료의 적합한 확률분포 형태와 변동계수를 제안하고자 한다. 본 연구에서 제시된 확률분포 형태는 새만금 지역 지반의 확률론적 해석의 기초 자료고 사용될 수 있을 것으로 판단된다.

옥상녹화의 우수유출량 저감효과에 관한 연구 -토심 및 식생유무를 중심으로-

이동근 ( Dong Kun Lee ),오승환 ( Seung Hwan Oh ),윤소원 ( So Won Yoon ),장성완 ( Seong Wan Jang ) 한국환경복원기술학회 2006 한국환경복원기술학회지 Vol.9 No.6

전환시대 지역혁신생태계 분석과 과제

김선우(Sunwoo Kim),정미애(Mi Ae Jung),오승환(Seung Hwan Oh),성지은(Jieun Seong),송위진(Wichin Song),박찬수(Chansoo Park),임채윤(Chae Yoon Lim),이윤준(Yoon Jun Lee),박동배(Dongbae Park),전지은(Jieun Jeon),정효정(Hyojung Jung),김지은(Jieu 과학기술정책연구원 2019 정책연구 Vol.- No.-

The South Korean society is now in the middle of crisis caused by chronic low-growth, income polarization, low birth rate and aging population. These crisis factors are causing geographical imbalance and inequality, so some regions are known to be on the verge of extinction. The present study aims to present possible solutions for achieving sustainable regional growth by capitalizing on the transitional factors. The ‘4P (Private-Public-People-Partnership)’ framework was applied to analyze the regional innovation ecosystem. This tool employs both quantitative and qualitative approaches. It quantitatively analyzes private and people elements while diagnosing public and partnership elements qualitatively. The quantitative analysis was conducted in cooperation with the Korea Enterprise Data (KED) using its corporate transactions network database. For the qualitative diagnosis, the research team collaborated with the Korea Small Business Institute (KSBI) by referencing KSBI’s regional development policy analyses. In a transitional era, regional innovation policy requires a location-based innovation policy approach. Now, it has become important to redefine the roles between the central and regional players, so that regional players take the lead while the central government only plays a supporting role instead of trying to solve regional issues with the policy lead of the central government. Therefore, regional innovation policies need to be based on the mutually beneficial relations between the central and regional players and be implemented by 1) linking R&D and non-R&D, 2) balancing science and technology innovation and lifestyle, 3) taking a comprehensive and integrated approach to science and technology, environment, energy and industrial policies and 4) combining various policies into a policy package. Against this backdrop, the present study has identified the following 10 policy initiatives from the analysis of regional innovation ecosystem; 1) building a real-time monitoring system to assess business ecosystem by region, 2) encouraging changes in pivot companies’ roles for the transformation of existing companies and supporting their growth to create more pivot companies, 3) building regional brands based on the entrepreneurship of residents living in regional cities and provinces, 4) enhancing integrity between the central government’s balanced regional development plan and regional governments’ own development plans, 5) strengthening planning capacity of regional players, 6) building a quantitative statistical base to monitor policies for supporting regional SMEs, 7) establishing an inter-ministerial mechanism for coordinating laws and regulations relevant to regional issues, especially those for designating special locations, 8) providing support differentiated by designated location, 9) developing new growth engines and opportunities to overcome regional crises, and 10) devising and implementing a policy mix based on cooperative governance.

아동청소년정책 패러다임의 전환

이혜원(Hye Won Lee),김성천(Sung Chun Kim),오승환(Seong Hwan Oh),이태수(Tae Soo Lee),정익중(Ick Joong Chung) 한국아동복지학회 2009 한국아동복지학 Vol.- No.28

이 연구의 목적은 우리나라 아동청소년정책의 통합시기를 맞이하여 새로운 패러다임을 모색하는 것이다. 이를 위해 선행연구에 근거하여 1960년대부터 최근까지 전개되어 온 아동청소년정책의 패러다임을 고찰하고, 현행아동청소년정책과 5개년 기본계획을 Gilbert & Terrell(2005)의 분석틀에 근거하여 분석하였다. 이 연구의 결과는 다음과 같다. 첫째, 아동청소년을 위한 사회투자의 관점과 유엔아동권리협약의 관점을 통해 새로운 패러다임이 구축되어야 한다. 둘째, 현재 진행되고 있는 정부의 정책은 오랫동안 강조되어온 통합의 필요성이 구현된다는 점에서는 바람직하지만, 재정효율화가 지나치게 강조되거나 급여확대가 동반되지 않는 문제점을 낳고 있다. 셋째, 사회적 할당 측면에서는 연령에 대한 일관성 있는 정비가 시급하며, 사회적 급여 측면에서는 일반아동청소년에 대한 소득보장과 참여권보장을 위한 대책이 요구되며, 초등학교학생과 요보호아동청소년에 대한 활동지원도 강화되어야 한다. 18세 이후 청년들에 대한 정책개발도 시급하다. 전달체계 측면에서는 공공의 책임이 강화되는 동시에 서비스기관들에 대한 네트워크기능이 강화되어야 하며, 재정 측면에서는 아동청소년기금이나 특별회계의 도입과 함께 대폭적인 재원 확충이 시급하게 마련되어야 한다. The purpose of this study is to suggest the new direction and paradigm of policy for the children and adolescents in Korea. Based on the literatures about the history of Korean child welfare and youth welfare, the former policy paradigm for the children and adolescents from the 1960s to the present was reviewed. Based on the UN Convention on the Rights of the Children(CRC), the principle for the new paradigm was also reviewed. Based on the Gilbert & Terrell(2005)`s framework, the present policy and the five years` planning for the children and adolescents in Korea were analyzed. The results of this study were as follows. First, the new paradigm should be established in the perspective of the social investment and of the CRC. Second, the present integrating policy of the government could be positive in the light to realize the necessity of the integration, which has been emphasized for a long time. However it has fatal problems of overemphasizing the efficiency of finance without expansion of the social provisions. Third, on the ground of the new paradigm, the `social allocation` policy needs to be urgently accompanied with consistency in accordance with age group. At the same time, in terms of the `social provisions`, the income-supported benefits and the participation rights have to be guaranteed for all the children and adolescents. The support strategy for the activities of the children in primary schools and the children under the protection should be reinforced. The policies for the adolescents over 18 years old should be provided urgently. On the ground of the delivery strategy, the public responsibility should be strengthened and, at the same time, the network function of the service facilities should be complemented as well. The substantial expansion of finance is indispensible through the induction of the funds or the special budget accounts for the children and adolescents.

옥상녹화조성에 따른 온도저감효과에 관한 연구 -서울대학교 실험구를 중심으로-

이동근 ( Dong Kun Lee ),윤소원 ( So Won Yoon ),오승환 ( Seung Hwan Oh ),장성완 ( Seong Wan Jang ) 한국환경복원기술학회 2005 한국환경복원기술학회지 Vol.8 No.6

八味地黃湯 煎湯液의 投與가 마우스의 自然致死 細胞의 活性度 및 免疫反應에 미치는 影響

朱松竹,李彦政,吳昇煥 圓光大學校 韓醫學硏究所 1992 원광한의학 Vol.2 No.1

This study was done to know the effects of Palmijihwangtang(八味地黃湯) on the cytotoxic activity of NK cells, the phagocytic activity of macrophages, the antibody production of B cells, and delayed-type hypersensitivity reaction by T cells in the mouse. The results were as follows. 1. The administration of Palmijihwangtang enhanced the cytotoxic activity of NK cells against YAC-1 cells. 2. The administration on Palmijihwangtang increased the production of reactive oxygen intermediate(ROI) production from macrophages without any effect on phagocytic activity. 3. The administration of Palmijihwangtang decreased the delayed-type hypersensitivity against dinitrochlorobenzene without affecting T cell subtypes. 4. The administration of Palmijihwangtang increased the antibody production against sheep red blood cells. The above results suggest that Palmijihwangtang could be used for the prevention and treatment of the diseases caused by the abnormalties of the body's immune functions.

피질골 절제술을 응용한 구치의 원심직립 이동

김상철,강경화,오승환,이인성,김선영 대한치과교정학회 2004 대한치과교정학회지 Vol.34 No.5

빠르며 정확하고 안전한 치아이동을 목표로 삼고 있는 교정치료에서 새로운 패러다임이라고 여겨지는 피질골 절제술과 견인 골형성술을 응용한 구치의 원심직립이동에 대하여 알아보았다. 일반적인 방법으로는 어렵거나 치료 기간이 길어질 것으로 판단되는 구치의 원심직립 이동을 피질골 절제술과 견인 골형성술을 응용하여 도모하였다. 각각의 원심직립 증례를 통해 피질골 절제술과 견인 골형성술의 적용 술식, 견인장치 등을 논하고 그 효과를 파악하였다. 빠른 치아이동과 이에 따른 교정치료 기간의 단축이 가능하고 통상의 교정치료로는 이동에 한계가 있었던 치아이동을 구치의 정출이나 고정원의 상실 없이 도모할 수 있었다. Tooth movement facilitated by corticotomy and distraction osteogenesis, a new paradigm in orthodontics, was discussed. Molar uprighting was thought to be either difficult or nearly impossible. In this study, a section of cortical bone. which may act as resistance to tooth movement in alveolar bone, was removed. Active bone deposition was also made possible in the tension side. This forms the main concept of tooth movement facilitated by corticotomy and distraction osteogenesis. Molars in two cases were uprighted at such a speedy rate as we could not Imagine in conventional tooth movement, which lead to reduction of the total treatment period. And molar uprighting was possible without side effects, for example, supraversion of the tooth or anterior anchorage loss. These were the superior aspects to conventional orthodontics.