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PSC 박스거더 상태평가를 위한 외부텐던 재료시험 절차
김종호 ( Kim Jong Ho ),차영욱 ( Cha Young Wook ),지승구 ( Ji Seung Gu ),이흥수 ( Lee Heung Soo ),정수형 ( Jung Soo Hyung ) 한국구조물진단유지관리공학회 2017 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.21 No.1
The safety issue of PSC box girder bridge stood out. So, we developed material testing method and procedures and applied them to existing bridge. Consequently, We found that the procedure we developed is very reasonable.
대한천식알레르기학회 알레르기비염 진료지침: 파트 2. 비약물치료의 업데이트
박상철 ( Sang Chul Park ),정수지 ( Soo Jie Chung ),최정희 ( Jeong-hee Choi ),이용주 ( Yong Ju Lee ),양현종 ( Hyeon-jong Yang ),박도양 ( Do-yang Park ),김동규 ( Dong-kyu Kim ),이일환 ( Il Hwan Lee ),김수환 ( Soo Whan Kim ),김도현 ( 대한천식알레르기학회 2023 Allergy Asthma & Respiratory Disease Vol.11 No.3
Allergic rhinitis is the most common chronic disease worldwide. Various upper airway symptoms lower quality of life, and due to the recurrent symptoms, multiple treatments are usually attempted rather than one definitive treatment. There are alternatives to medical (medication-based) and nonmedical treatments. A guideline is needed to understand allergic rhinitis and develop an appropriate treatment plan. We have developed guidelines for medical treatment based on previous reports. The current guidelines herein are associated with the “KAAACI Evidence-Based Guidelines for Allergic Rhinitis in Korea, Part 1: Update in pharmacotherapy” in which we aimed to provide evidence-based recommendations for the medical treatment of allergic rhinitis. Part 2 focuses on nonpharmacological management, including allergen-specific immunotherapy, subcutaneous or sublingual immunotherapy, nasal saline irrigation, environmental management strategies, companion animal management, and nasal turbinate surgery. The evidence to support the treatment efficacy, safety, and selection has been systematically reviewed. However, larger controlled studies are needed to elevate the level of evidence to select rational non-medical therapeutic options for patients with allergic rhinitis. (Allergy Asthma Respir Dis 2023;11:126-134)
부분입사형 초음속 터빈 익렬내 유동 특성에 관한 수치적 연구
신봉근(Bong-Gun Shin),조종재(Jong-Jae Cho),정수인(Soo-In Jeoung),김귀순(Kui-Soon Kim),이은석(Eun-Seok Lee) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.4
Turbo-pump system, an essential component of liquid rockets and induced weapons, adopts a partial admission axial turbine which drives pump. And the turbine of a turbo-pump system is usually operated at supersonic condition due to its high loading chracteristics. Therefore, reseaches about flow and performance characteristics of a partial admission supersonic turbine must be preceeded to progress the aerospace and defense industries as well as the development of turbo-pump systems. In this study, flow characterisitics within blades of the partial admission supersonic turbine are numerically investigated by using Fine Turbo, a commercial CFD Code. Before performing the numercial analyses, to verify accuracy of the numerical result computed by Fine Turbo, I performed the comparison between the numerical results with J.J.Cho’s experimental results. It is found that the numerical results show good agreement with the experimental results. Computations about the partial admission supersonic turbine have been performed to investigate flow characteristics including shock patterns. It is also found that the flow and performance of partial admission supersonic turbine are largely depend on shocks ocurred in the nozzle and at the leading edge of blades, expansion or compression at exit of nozzle and separations occurred in passage.