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구강 접근과 트로카를 이용한 하악 과두하부 골절의 정복과 고정
허준영,김종윤,임재형,박광호,허종기,Hur, Jun-Young,Kim, Jong-Yun,Lim, Jae-Hyung,Park, Kwang-Ho,Huh, Jong-Ki 대한악안면성형재건외과학회 2010 Maxillofacial Plastic Reconstructive Surgery Vol.32 No.1
The mandibular condyle fracture occurs at 15-30% frequency of whole mandibular fracture. The treatment of choice is open reduction or closed reduction. In many cases, closed reduction is preferred for treatment of condylar fracture because it is hard to approach to condyle and there is risk of surgical complications, such as nerve damage in open reduction. Open reduction, however, has some advantages like possibility of anatomical reduction, occlusal stability and rapid functional recovery. Furthermore, it is possible to retain original ramal heights and to decrease deviation during mouth opening. There are many surgical approaches for open reduction of subcondyle fracture. At present, transoral approach using trochar device is tried for effective and minimally invasive method for open reduction of subcondyle fracture. And the authors report the cases of reduction of subcondyle fracture with transoral approach using trochar device.
허준영(Jun-Young Hur),김종윤(Jong-Yoon Kim),임재형(Jae-Hyung Lim),전국진(Kug-Jin Jeon),김형곤(Hyung-Gon Kim),허종기(Jong-Ki Huh) 대한구강악안면외과학회 2009 대한구강악안면외과학회지 Vol.35 No.6
Villonodular synovitis, also called pigmented villonodular synovitis, is the benign lesion with the characteristic of locally aggressive proliferation of mononuclear histiocyte and giant cell. Typically it involves single joint, especially about 80% of disease occurs in the knee joint. Villonodular synovitis of the temporomandibular joint is very rare disease. Differential diagnosis includes synovial chondromatosis and tumors of the temporomandibular joint. Optimal treatment consists of complete excision of the mass and removal of the synovium including adjacent affected bony structures. This is a case report of villonodular synovitis developed in the temporomandibular joint.
장석준 ( Seok-jun Jang ),허준영 ( Joon-young Hur ) 한국정책학회 2016 韓國政策學會報 Vol.25 No.3
본 연구에서는 중앙정부의 갈등 예방 관련 법률의 입법이 부재한 상황에서 기초 지방정부가 지역 사회의 갈등 문제에 적극적으로 대처하기 위한 자율적인 조례의 채택 과정을 혁신 정책의 확산 과정으로 이해하여 확산 추동 요인을 실증적으로 분석해 보고자 하였다. 이를 위해 로짓 분석 결과를 토대로 독립변수 변화와 이들 독립 변수의 결합 조건에 따른 갈등 조례의 채택의 확률을 추정하였다. 분석 결과, 기초 지방정부의 정치ㆍ행정적 요인과 같은 지역 내부적 요인보다는 지역적 효과와 수직적 확산 메커니즘과 같은 외부적 요인과 정책 특성적 요인으로서 갈등 예방 정책의 기능적 수요인 공공분쟁 발생 변수 등이 갈등예방 조례의 확산 과정에서 중요한 역할을 하는 것으로 나타났다. 이러한 결과는 지방자치단체가 지역사회에서 경험한 공공갈등 발생에 따른 자발적인 대응으로서 갈등관리 조례를 제정하는 측면과 동시에 상위 정부의 제정여부나 주변 지자체의 도입이라는 외부적 여건에 주로 영향을 받아 정책을 채택하는 정책의 확산 과정이 작동하고 있다는 정책적 시사점을 지닌다. 다만 추가적으로, 지방정부 혁신성 지수는 보다 체계적인측정이 필요하고 갈등 예방 조례 도입 과정에 대한 심층적인 사례 분석이 보완될 필요가 있다. The purpose of this study is to identify factors that influence the diffusion of conflict prevention ordinance by local government, in that its adopting process would be understood as a diffusion of innovation policy in the situation of not an law and regulation regarding conflict prevention in the central government level. With the result of logit analysis, we estimate the adoption probability of conflict prevention ordinance by local government according to the change of independent factors and their coupling condition. The results indicate that external factors like regional effect and vertical diffusion mechanism as well as policy’s characteristics triggering functional demand play a more important role compared with the internal factors such as political·administrative factors of local government. These findings implicate that basic local governments adopt conflict prevention ordinance voluntarily against public conflicts in their territory on the one hand, and they are influenced externally not only by adoption of upper(regional) government but also neighboring local governments one the other hand. For the further study, there needs a more systematic measurement for the innovation index in the local government level and a deeper case analysis for adoption process of the conflict prevention ordinance by local government.
NURBS 제어점의 위치 및 가중치를 설계변수로 하는 스플라인 유한 요소법 기반 형상최적설계 연구
송여울(Yeo-Ul Song),허준영(Jun Young Hur),윤성기(Sung-Kie Youn) 대한기계학회 2014 大韓機械學會論文集A Vol.38 No.4
본 연구에서는 NURBS(Non-Uniform Rational B-spline)를 이용한 형상최적화 방법을 제안한다. 대부분 NURBS 기반 형상 최적화 방법은 NURBS 의 제어점 위치 좌표 값만을 설계변수로 택하고 있다. 이러한 경우, 형상최적화 과정에서 종종 제어점들이 서로 가까워져 메쉬 품질을 악화시키고 수렴이 되지 않는 등의 문제를 야기시킨다. 본 연구에서는 형상최적화에서 NURBS 제어점의 좌표뿐 아니라 가중치를 추가적으로 설계 변수로 고려하여 세밀한 형상 변화를 가능하게 하고, 제어점 위치 좌표 최적화 과정과 제어점 가중치 최적화 과정을 분리하여 단계적으로 효율적인 형상 최적화를 수행하였다. 제안한 형상최적화 방법을 예제에 적용하여 제안된 방법의 효율성을 검증하였다. A new NURBS-based shape optimization method is proposed. Most shape optimization studies consider only control point positions as design variables. Some shape optimization processes present problems with mesh quality and convergence when control points are constrained to a limited space. If the weights of the control points are regarded as additional design variables, it should be possible to attain a better degree of shape control. In this study, positions and weights of NURBS control points are used as design variables, and a shape optimization algorithm incorporates position optimization and weight optimization steps. This method is applied to shape optimization benchmarking problems to verify its advantages.
염선경 ( Sun Kyoung Yum ),유민지 ( Min Ji Ryu ),박나윤 ( Na Yoon Park ),김성민 ( Seong Min Kim ),이경욱 ( Kyong Wook Yi ),박현태 ( Hyun Tae Park ),신정호 ( Jung Ho Shin ),허준영 ( Jun Young Hur ),김선행 ( Sun Haeng Kim ),김탁 ( T 대한산부인과학회 2012 Obstetrics & Gynecology Science Vol.55 No.3
Premenstrual dysphoric disorder (PMDD) is a common condition that temporarily, but repetitively affects patient`s global function. Patients and physicians alike are often uncertain whether prescription medication for PMDD is sufficiently effective. The primary objective of this analysis is signal detection in efficacy of pharmacological treatments in PMDD. Secondary objective is to review which symptoms are likely to respond to which medications. The review included otherwise healthy women with clinician confirmed diagnosis of PMDD who participated in phase 3 clinical trials for the treatment of PMDD. Twelve pair-wise comparisons of drug and placebo for 2,420 patients with PMDD were performed. Oral contraceptives and selective serotonin receptor inhibitor were effective in alleviating symptoms of PMDD compared to placebo. Both Intermittent and continuous administration were more effective than placebo. This meta-analysis provides a signal that pharmacological treatment of PMDD is effective.