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Track 3 : 컴퓨터활용교육; 아두이노 기반 실험 교육이 갖는 피지컬 컴퓨팅의 효과
오주형 ( Joo Hyeong Oh ),김민수 ( Min Soo Kim ),최인준 ( In Joon Choi ),장명호 ( Myung Ho Jang ),김희주 ( Hee Ju Kim ),유태묵 ( Tae Muk Lyoo ),김동정 ( Dong Jeong Kim ),유헌창 ( Heon Chang Yu ) 한국컴퓨터교육학회 2014 한국컴퓨터교육학회 학술발표대회논문집 Vol.18 No.1
OECD 주요 국가에서는 과학교육을 위하여 오래 전부터 마이크로컴퓨터 기반 실험교육을 실시해 왔다. 우리나라에서도 2005년부터 현재에 이르기까지 이를 시행해 왔는데, 일부 과학고등학교에서만 실시되고 있다. 일반 고등학교에서 실시되지 못하는 이유는, 마이크로컴퓨터 기반 실험교육이 갖는 비용이 크고, 일반 고등학교에서 교육 장비를 구비하기 어려운데다가 관련 전문지식을 갖춘 교육자들이 부족하기 때문이다. 본 연구에서는 아두이노(Arduino)를 이용하여 일선 학교에서 쉽게 접근할 수 있도록 했다. 아두이노와 연결되어 사용하는 센서들도 교육 목표에 도달하기에 부족함이 없었다. 학습자들이 직접 아두이노와 센서를 결합하여 회로를 구성할 수 있었으며, 아두이노를 제어할 수 있는 C언어 기반의 PROCESSING 프로그래밍 도구를 이용하여 결과를 얻을 수 있는 프로그래밍을 하였고, 그 결과를 그래프로 가공하여 보았다. 교사의 도움 없이도 쉽게 접근하여 문제를 처리할 수 있었다. 이와 같은 아두이노 기반의 피지컬 컴퓨팅의 효과를 알아보기 위하여, 본 연구는 아두이노를 이용하여 구성된 온도 및 빛의 양을 측정하는 모듈에 대한 성능을 평가할 수 있는 실험을 함으로써, 피지컬 컴퓨팅이 갖는 효과를 알아보았다.
Kimray-Greenfield 대정맥 필터의 경피적 설치술
윤엽,오주형,최우석,임재훈,김진우,Yoon, Yup,Oh, Joo-Hyeong,Choi, Woo-Suk,Lim, Jae-Hoon,Kim, Jin-Woo 대한영상의학회 1989 대한영상의학회지 Vol.25 No.3
transvenous plcement of vena caval filtration devices has become more effective alterna-tive in the management of patients in whom anticoagulation is contraindicated or thromboem-bolism recurs despite anticoagulation. Percutaneous transjugular placement of the Kimary-Greenfield filter in the suprarenal in-ferior vena cava was successfully accomplished in 34-year-old female patient with recurrent pulmonary embolism who had suffered from bilateral deep vein thrombosis.
가토에서의 장관천공을 통한 경피적 배액관 설치시 안전성 평가
이준형,오주형,박가영,신홍섭,김인섭,윤엽,이동호,고영태,최우석,임주원,Lee, Choon-Hyeong,Oh, Joo-Hyung,Park, Ga-Young,Shin, Hong-Sub,Kim, In-Sub,Yoon, Yup,Lee, Dong-Ho,Ko, Young-Tae,Choi, Woo-Suk,Lim, Joo-Won 대한영상의학회 1996 대한영상의학회지 Vol.35 No.4
Purpose : To evaluate the safety of transgression of the bowel during intraperitoneal percutaneous catheterplacement in an animal model. Materials and Methods : Eight 8-F straight catheters were percutaneously insertedinto the small and large bowel of eight rabbits. In four animals, the catheters were left in place until autopsy,whereas in the remaining four, the catheters were withdrawn five days after insertion. Autopsy was performed inall animals ten days after catheter placement, and gross and microscopic examination was carried out. Results :Transgressing the bowel during intraperitoneal percutaneous catheter placement did not contribute to anyclinically significant complications. At autopsy, there was no bowel leakage, peritonitis, or abscess, althoughperitoneal adhesions were found around the catheter tract. Conclusion : Although further study is warranted, ourstudy with an animal model indicated that transgression of the intestine during percutaneous placement of anintraabdominal catheter did not produce significant complications.
진욱,오주형,윤엽,고영태,최우석,김의종,서진태,Jin, Uk,Oh, Joo-Hyeong,Yoon, Yup,Ko, Young-Tae,Choi, Woo-Suk,Kim, Eui-Jong,Seo, Jin-Tae 대한영상의학회 1996 대한영상의학회지 Vol.34 No.2
Purpose : To evaluate the air contamination of the gelfoam in the angio-intervention room. Materials andMethods : After exposing four groups of gelfoam(group A1 : gelfoam fragment, group A2 : gelfoam fragment+ saline +contrast media, group B1 : gelfoam powder, group B2 : gelfoam powder + saline + contrast media) to air in theangio-intervention room, we inoculated gelfoam in each group to 30 agar plates each at every fifteen minutes forone hour with aseptic cotton buds. Cultivating them in the incubator for one day, we evaluated the growth ofbacteria or fungus. Results : Out of 480 inoculated agar plates, the growth of coagulase(-) staphylococci wasvisible in 14 ; in group A1, two at 30 minutes, three at 45 minutes, and four at 60 minutes ; in group A2, one at45 minutes and two at 60 minutes ; in group B1 and B2, one each at 45 minutes. The stastical analysis on bacterialcontamination according to time sequence and group revealed no significance(p〉0.05). Conclusions : If gelfoam isexposed to room air for less than 30 minutes, it is possible to reduce contamination by air-borne bacteria. Sincecoagulase-negative Staphylococci resistant to commonly used antibiotics, it is ideal to reduce exposure of gelfoamto room air for less than 30 minutes.
진욱,최우석,오주형,김의종,윤엽,Jin, Uk,Choi, Woo-Suk,Oh, Joo-Hyeong,Kim, Eui-Jong,Yoon, Yup 대한영상의학회 1996 대한영상의학회지 Vol.34 No.2
Purpose : This study was conducted to describe the postopertive MRI findings with contrast enhancementfollowing anterior cervical fusion(ACF). Materials and Methods : Thirteen patients after anterior cervical fusionsfor disc herniation or traumatic injury were studied with MRI 1 month to 10 months after operation. MRI findingswere analysed with attention to the remained vertebral body, disc material, retropharyngeal soft tissue, graftedbone fragment, and biological orthopedic prosthesis(BOP). Results : In 8\13 cases(62%), enhancement of theretropharyngeal soft tissue was seen with good demarcation between soft tissue and surrounding vertebra or disc.In 9\13 cases(69%), grafted bone or BOP was well defined by intersurface with low signal intensity. In 4 cases ofACF with bone graft, 2 cases(50%) showed heterogeneous or homogeneous enhancement of grafted bone fragments.Remained vertebral bodies and discs showed enhancements in 8\13 cases(62%). Conclusion : Postoperative MR findingsafter ACF included good margination of enhanced retropharyngeal soft tissue, grafted bone, and remained vertebralbodies/discs. The MRI could be a useful study to differentiate findings after ACF from posoperative inflammationssuch as spondylitis or discitis, and be a good imaging modality for follow up of grafted bony fragment or BOP.