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H1N1 Influenza 폐렴 환자에서 발생한 Mycobacterium abscessus 감염
정경원 ( Kyoung Won Jung ),유훈 ( Hoon Yu ),이태훈 ( Tae Hoon Lee ),권오성 ( O Sung Kwon ),최석원 ( Suk Won Choi ),강세훈 ( Se Hun Kang ),심태선 ( Tae Sun Shim ),김동순 ( Dong Soon Kim ),송진우 ( Jin Woo Song ) 대한결핵 및 호흡기학회 2010 Tuberculosis and Respiratory Diseases Vol.69 No.3
Novel influenza A (H1N1) virus is a common pathogen of febrile respiratory infection recently. Here, we report the case of a 63-year-old male patient who presented with 3 days` ongoing cough and fever. He was diagnosed with novel influenza A (H1N1) pneumonia by real-time reverse-transcriptase-polymerase-chain-reaction (rRT-PCR). During treatment for novel influenza A (H1N1), his symptoms and radiologic findings improved initially, but multiple lung nodules developed subsequently and found on chest x-ray (on the 5th hospital day). Mycobacterium abscessus was isolated repeatedly from sputum and bronchoalveolar lavage fluid. To our knowledge, this is the first reported case of Mycobacterium abscessus lung disease in a patient with H1N1 influenza pneumonia.
초고층 건물의 건전성 감시를 위한 변형률 기반 무선 센서 네트워크 기법의 기초적 연구
정은수,박효선,최석원,차호정,Jung,Eun-Su,Park,Hyo-Seon,Choi,Suk-Won,Cha,Ho-Jung 한국방재학회 2007 한국방재학회 학술발표대회논문집 Vol.2007 No.1
For smart structure technologies, the interests in wireless sensor networks for structural health monitoring are growing. The wireless sensor networks reduce the installation of the wire embedded in the whole structure and save the costs. But the wireless sensor networks have lots of limits and there are lots of researches and developments of wireless sensor and the network for data process. Most of the researches of wireless sensor network is applying to the civil engineering structure and the researches for the highrise building are required. And strain-based SHM gives the local damage information of the structures which acceleration-based SHM can not. In this paper, concept of wireless sensor network for structural health monitoring of highrise building is suggested. And verifying the feasibility of the strain-based SHM a strain sensor board has developed and tested by experiments.
김성일,이광모,최석원,정준화,김성일,Kim, Seong-Il,Lee, Kwang-Mo,Choi, Suk-Won,Jung, Jun-Hwa,Kim, Seong-Il 한국건설관리학회 2009 한국건설관리학회 논문집 Vol.4 No.3
본 연구에서는 확률적 LCC 및 확률적 성능평가를 고려한 설계 VA분석 방법을 제안하였으며, 신뢰성 해석의 개념을 도입하여 신뢰도를 확보한 의사결정을 지원하고자 하였다. 상기와 같은 목적과 방법에 따라 진행된 본 연구의 결과를 요약하면 다음과 같다: 1) 기능정의가 완료된 이후 도출된 대안들의 대안평가시 신뢰성 있는 분석을 위하여 개선된 설계VA 절차 와 가치상태함수를 정식화하였으며, 가치평가절차에서의 일관성 및 효율성을 확보하기 위하여 평가지표방안을 제시하였다. 2) 교량의 LCC분석을 위한 DB를 수집 및 분석하였다. 자료의 수집범위는 기존에 수행된 교량의 LCC분석 연구 문헌을 기초로 하여 분석하였으며, 분석결과에 대한 신뢰도 확보 및 수집된 자료의 불확실성 처리를 위해 MCS 기법을 적용하였다. 3) 대안별 성능평가를 위한 가중치 및 평가등급과 LCC 분석을 위한 LCC 분석모델, 분석기간, 할인율, 사용자비용, 안전점검 및 안전진단비용에 대한 조건을 제시하였다. 끝으로, 사례대상인 "OO대교 및 연결도로 건설공사 실시설계" 프로젝트에 대한 VA수행 사례를 중심으로 타당성을 검토하고 결론을 도출하였다. In this study, a design value analysis technique that considered stochastic LCC and stochastic performance evaluation was proposed, and by introducing the concept of reliability analysis, a decision making that secured reliability was supported. The results of this study, which was carried out according to the above objectives and methods, are summarized as follows: 1) The design value analysis procedures and value state function, improved in order to carry out a reliable analysis when evaluating alternate proposals that were extracted after the function definition was complete, were formalized, and in order to secure consistency and efficiency for value evaluation procedures, an evaluation index scheme was proposed; 2) Database collection and analysis were done for a bridge's LCC analysis. As for the collection scope of data, literature of previous research done on a bridge's LCC analysis was used as the basis for analysis, and for securing reliability regarding analysis results and dealing with uncertainty of collected data, the MCS technique was applied; 3) Weights and evaluation ranks for performance evaluation of each of the alternate proposals, as well as LCC analysis model, analysis period, discount rate, user expense, safety inspection and safety diagnosis expense conditions for LCC analysis were proposed. Lastly, a feasibility study was done and conclusion was made about "OO grand bridge and connecting road construction work execution design" project centered on value analysis execution case.
전방십자인대 재건술 시 이식건의 봉합을 이용한 기둥 고정에서 적절한 요소: 봉합사 수, 매듭 수, 봉합 방법, 봉합 수 -돼지 건을 이용한 실험적 연구-
심재앙 ( Jae Ang Sim ),최석원 ( Suk Won Choi ),전창수 ( Chang Soo Chon ),김원석 ( Won Seok Kim ),이용석 ( Yong Seuk Lee ),이범구 ( Beom Koo Lee ) 대한스포츠의학회 2014 대한스포츠의학회지 Vol.32 No.1
We evaluated the conditions required for sutures tied to a post for tibial fixation during anterior cruciate ligament (ACL) reconstruction. Harvested porcine tendon was used as a graft material and nonabsorbable suture was used for sutures. Samples were tested for ultimate tensile load and elongation according to thread numbers, knot numbers, suture techniques and stitch numbers. As thread numbers were increased, ultimate tensile load was increased and elongation was decreased. However, more than 4 strands of threads provided the sufficient ultimate tensile load more than 454 N of normal ACL for daily activities. As knot numbers were increased, ultimate tensile load was increased, but elongation was decreased. In terms of failure mode, unraveling occurred 100% in 3 and 4 knots, 81.2% in 5 knots, 54.5% in 6 knots, and 0% in 7 knots. Suture techniques and stitch numbers didn`t significantly affect the ultimate tensile load and the elongation. For sutures tied to a post for tibial fixation in ACL reconstruction, more than 4 threads, more than 7 knots, and more than 4 stitches provide adequate ultimate tensile load and elongation.