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군복무 부적응 병사들에 대한 게슈탈트 관계성 향상 프로그램(GRIP)의 효과
서명규 ( Myung-kyu Seo ),김정규 ( Jungkyu Kim ) 한국게슈탈트상담심리학회 2012 한국게슈탈트상담연구 Vol.2 No.1
본 연구는 군 부적응 병사의 적응력 향상을 위한 목적으로 개발된 게슈탈트 집단치료 프로그램(GRIP)에 대한 연구이다. 연구 대상은 경기도 소재의 육군 소속부대에서 군복무를 하고 있는 보호관심병사 6명과 본 연구 사전조사를 통해 선별된 부적응병사 17명이며, 실험집단과 통제집단으로 각각 12, 11명으로 나눈 후 실험집단에게 주 2회, 100분 동안 10회의 프로그램을 실시하였다. 그 결과 게슈탈트 관계성 증진 프로그램(GRIP)에 참여한 치료집단 구성원들은 통제집단에 비해 군 생활 스트레스 및 그 하위변인 중 역할 스트레스, 외부 스트레스, 관계 스트레스에서 유의한 감소가 나타났다. 또한 치료집단의 우울수준이 통제집단에 비하여 유의미하게 감소되었으며, 불안수준에 있어서도 치료집단의 상태불안과 특성불안이 유의미하게 감소한 것으로 나타났다. 그리고 자아개념을 구성하는 하위변인 중 대인신뢰감 수준 또한 유의미한 증가를 보였다. 결론적으로 본 연구에서 사용된 게슈탈트 관계성 향상 프로그램은 병사들의 스트레스, 우울, 불안을 감소시키고, 자기개념을 증진시켜 군 적응 돕는데 효과적임을 시사한다. The aim of this study was to develop a Gestalt Relationship Improvement Program (GRIP) for maladjusted soldiers in the Korean army and to evaluate the effectiveness of the program in helping to increase their adaptability. The subjects were 23 male soldiers considered non-adaptive to army life. The subjects were divided into experimental and control groups. During the experimentation period, the experimental group was treated with ten group therapy sessions by a trained therapist twice a week, with each session lasting 100 minutes. The result of this study showed that those who participated in the GRIP made significant improvement in every main aspect of adaptability, as highlighted by four important results. First, the total scores and the scores from the three subscales of the Military Life Stress Questionnaire decreased after therapy. Second, the BDI mean score of the experimental group significantly decreased. Third, state anxiety and trait anxiety scores also decreased. Fourth, the scores from one subscale of the Sungshin Self-concept Test decreased after the program. In conclusion, the study showed that the Gestalt Relationship Improvement Program was helpful in treating soldiers with adjustment problems.
주조/단조 기술을 이용한 대형 알루미늄 플랜지 개발에 관한 연구
배원병,왕신일,서명규,조종래,Bae, Won-Byeong,Wang, Sin-Il,Seo, Myeong-Gyu,Jo, Jong-Rae 대한기계학회 2001 大韓機械學會論文集A Vol.25 No.9
The significance of the casting/forging process for reducing the production cost of large components is being noted in these days. This casting/forging process is a method of forging a workpiece preformed by casting into the final shape. In this study, the casting/forging process has been applied in manufacturing a large aluminum flange in order to reduce press capacity and material cost. Firstly, a hot compression test was performed with cast cylindrical billets in order to determine the optimum forging condition of the aluminum flange. The optimum range of forging temperature of Al 5083 was from 420$\^{C}$ to 450$\^{C}$. The suitable strain rate was 1.5 sec(sup)-1. The deformation amount of a preform of a preform in a forging process is a key role in the mechanical properties of casting/forging products. In order to find the change of mechanical properties according to effective stain of cast aluminum billets, a hot upsetting test were performed with rectangular blocks and then a uniaxial tensile test was performed with specimens cut from the upsetted billets. The tensile strength and the elongation of cast/upsetted aluminum billets were increased largely until the effective strain was 0.7. FE analysis was performed to determine the configurations of case preform and die for an aluminum flange. In the FE analysis, the forging load-limit was fixed 1500ton for low equipment cost. The cast preform was designed so that the effective stain around the neck of a flange exceeded 0.7. From the result of FE analysis, optimal configurations of the cast preform and the die were designed for a large flange. The filling and solidification analysis for a sound cast-preform was carried out with MAGMA soft. In the forging experiment for an aluminum flange, it was confirmed that the optimal configuration of the cast preform predicted by FE analysis was very useful. The cast/forged products using designed preform were made perfectly without any defects.
타이어 구름 저항 측정 방법 간 최적화된 추정 방법 연구 및 적용
서정인(Jeongin Seo),서명규(Myoungkyu Seo),염기호(Kiho Yum),장영석(Youngseok Jang),이기연(Ghiyoun Lee) 한국자동차공학회 2023 한국자동차공학회 학술대회 및 전시회 Vol.2023 No.11
To measure tire rolling resistance, majority of the industry uses two methods, ISO 28580 and SAE J1269. Differences of test procedures between them result in tradeoffs in measurement time and coverage. ISO 28580 requires 2 hours per tire measurement and it only can represent resistance under limited driving condition. on the other hands SAE J1269 requires 4 hours per tire but can represent resistances under various axial loads and pressures. Thus there has been a requirement to estimate various resistances by using simpler resistances. This study describes an optimized method to estimate tire resistance measured on SAE J1269 by using tire resistance measured on ISO 28580. This paper suggests building linear regression models between ISO 28580 and SAE J1269 on several areas separated by axial loads and tire pressures. The suggested method showed R2 of 0.9 and mean absolute error of 0.1.