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손종민,이희주,조기흠,신성은,김세환,이춘규,Son, Jong-Min,Lee, Hui-Ju,Cho, Gi-Heum,Shin, Seong-Eun,Kim, Sei-Whan,Lee, Chun-Kyu 한국금형공학회 2017 한국금형공학회지 Vol.11 No.1
Burrs generated during shear forming such as notching and piercing may cause lifting during product assembly, which may deteriorate the productivity and quality of products. In this study, various shear angles and variable clearances between the punch and the die were applied in experimental notching tests to investigate the shear fracture surface and the burr height due to various conditions. The experimental results show that the clearance has the greatest effect on shear and fracture surfaces. It is considered that the height of the shear section increases slightly as the shear angle increases.
손종민,김세환,이춘규,Son, Jong-Min,Kim, Sei-Whan,Lee, Chun-Kyu 한국금형공학회 2016 한국금형공학회지 Vol.10 No.3
Foaming is a step of forming by the ratio of the internal combustion chamber in a state where the in flow of the material is suppressed, if the diameter is small and a high to a crack generated on the molding is not possible. The present study, we studied using as part experiments for forming the circular shape of the forming height of 10 mm without the occurrence of cracks, results preformed primary, the need to set the height of the forming than the height of the product, preformed secondary. It was able to increase the height of the molded product with less than the height of the next step to be carried out compression processing to create a small comer of the desired shape. In addition, it was found that on a great influence on the quality of the final quality on the final molding of the primary preformed, secondary.
스터럽으로 보강되어 있지 않은 초고성능 콘크리트의 전단 성능 평가
손종민(Son Jong-Min),배백일(Bae Beak-Il),최창식(Choi Chang-Sik) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.2(구조계)
When it comes to the present, high-rise and larger buildings were increasing, as the research and the use of Ultra-High Performance Concrete (UHPC) are increasing. We should be solved the weakness thing, about a brittle fracture to use UHPC at the field. Especially it is immediate problem that is brittle fracture due to shear strength. And there is no clear regulations in our country to evaluate the shear strength of UHPC. This study aims to steel fiber is how effect on the UHPC to increase shear strength. And how to evaluate shear strength of UHPC.
배백일,손종민,최창식,최현기,Bae, Baek-Il,Son, Jong-Min,Choi, Chang-Sik,Choi, Hyun-Ki 대한건축학회 2012 대한건축학회논문집 Vol.28 No.5
In this study, experiments on ultra-high-strength steel fiber reinforced concrete beams with 2% volume fraction of steel fiber had been conducted. Test was conducted by two point loading with 2,000kN actuator for slender beam specimen. Shear-span to depth ratio was 6 intending the flexural failure. For the flexural design of ultra-high strength fiber reinforced concrete member an empirical equation had been proposed. Improving accuracy of empirical equation, 9 possible stress distributions for concrete section was compared with test results. For the reliability of empirical equation, these models were compared with experiment results conducted with previous researches. As a results of comparative study, the most exact solution was the model that use the real stress distribution of ultra-high strength fiber reinforced concrete. However, more safer prediction was possible using stress block parameters that was proposed by the study results of ultra-high strength concrete and tensile stress distribution that was considered the debonding properties of fiber.
배백일(Bae Baek-Il),손종민(Son Jong-Min),최창식(Choi Chang-Sik),최현기(Choi Hyun-Ki) 대한건축학회 2012 大韓建築學會論文集 : 構造系 Vol.28 No.5
In this study, experiments on ultra-high-strength steel fiber reinforced concrete beams with 2% volume fraction of steel fiber had been conducted. Test was conducted by two point loading with 2,000kN actuator for slender beam specimen. Shear-span to depth ratio was 6 intending the flexural failure. For the flexural design of ultra-high strength fiber reinforced concrete member an empirical equation had been proposed. Improving accuracy of empirical equation, 9 possible stress distributions for concrete section was compared with test results. For the reliability of empirical equation, these models were compared with experiment results conducted with previous researches. As a results of comparative study, the most exact solution was the model that use the real stress distribution of ultra-high strength fiber reinforced concrete. However, more safer prediction was possible using stress block parameters that was proposed by the study results of ultra-high strength concrete and tensile stress distribution that was considered the debonding properties of fiber.
김상일(Sang-Il Kim),손종민(Jong-Min Son),이상욱(Sang-Uk Lee),주선영(Sun-Young Joo),오인수(In-Soo Oh) 대한정형외과학회 2011 대한정형외과학회지 Vol.46 No.2
Kimura 병은 원인이 잘 알려져 있지 않은 드문 양성 림프 증식성 염증성 질환이다. 체부에 발생한 비압통성 다발성 종괴를 주소로 내원한 48세 남자환자에 대해 절제 생검술 후 조직병리학 결과, Kimura 병으로 진단하였다. 체부에 발생한 다발성 Kimura시 병에 대해 보고하고 이에 대한 문헌을 고찰하는 바이다. Kimura's disease is a very rare, benign, Iymphoproliferative inflammatory disorder of unknown etiology. A 48 year-old man had multiple soft tissue masses in his trunk, which was diagnosed as Kimura's disease by histopathologic evaluation. Here, we report the case with a review of the literature.
관광개발을 위한 대상지의 제 조건 연구 -말레이시아 코타키나발루를 중심으로-
윤병국 ( Byeong Kug Yoon ),손종민 ( Jong Min Son ),조광남 ( Gwang Nam Cho ),이춘화 ( Chun Hwa Lee ),박삼 ( Sam Park ) 한국사진지리학회 2013 한국사진지리학회지 Vol.23 No.3
Tourism development destination conditions on the university textbooks are analyzed. This result is applied to Field Survey Kota Kinabalu area. Results are as follows. First, at the intersection of East-West, Malaysia due to the geopolitical location has served as a melting pot of cultures. Kota Kinabalu, analyzed the development of the condition of Humanities and social conditions, natural conditions, and conditions in terms of tourism resources fully equipped configuration requirements were. In particular, marine and waterfront area, which blend with the natural environment of Mt. Kinabalu as a world-class resort facilities are equipped with the condition as a tourist destination. Second, the environment is not compromised as a tourist destination and landscape management policies are applied. Kinabalu mountain areas, especially to preserve the natural environment as much as possible and not be ashamed of the past colonial history of North Borneo but to indicate the historicity facilities like a steam train and play actively compensate for the relative lack of cultural resources is trying to. According to a study for the development of Kota Kinabalu alternative tourism facilities provided in hardware, so specific wellness, healing, eco-tourism product will be strengthened by software components. In addition, Tourist areas and hierarchical characteristics, theme tourism products will be configured.
은승표,손한석,손종민,장주해,안동헌 대한골절학회 1996 대한골절학회지 Vol.9 No.3
Supracondylar fracture of the humerus is the most common fracture around the elbow joint in children, especially in the age from 4 to 9. 97% of The fractures are extension type and there are many problems in management such as the method of reduction and maintenance of reduction, Volkmann's ischemia, neurovascular injuries, cubitus varus or valgus deformity, and myositis ossificans etc. Currently the methods of treatment of supracondylar fracture include open reduction and pin fixation, closed reduction and percutaneous pin fixation, and closed reduction and immobilization by splint. 134 children with supracondylar fracture of humerus, conservatively 49 cases and operative 85 cases, were treated from January 1991 to October 1995 and were followed u p for at least 6 months. We analyzed the type of fracture, method of treatment and results and concluded that accurate reduction, minimizing soft tissue injury and maintenance of reduction are important factors for gaining good results.