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HWAW방법을 이용한 고속철도 교량 상판 신축 이음부 도상 자갈의 이완상태 및 이완범위 평가
박형춘(Park Hyung-Choon),박준오(Park Jun-O),진남희(Jin Nam-Hee),노희관(Noh Hee-Kwan),배현정(Bae Hyun-Jung) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.5월
The local loosening of ballast supporting railway tract cause a differential vertical tract settlement. In the bridge, the temperature change make bridge deck to contract and expand, and this movement cause local loosening of ballast on the bridge expansion joint. Therefore, the evaluation of the status of ballast on the bridge expansion joint is important for the track maintenance of the high-speed railway. In this paper, hwaw method was applied to evaluate the status of ballast on the bridge expansion joint. HWAW method is non-detructive test to evaluate 2-D shear wave velocity map along the railway. Shear wave velocity is directly related with status of ballast. In this research, hwaw method was applied two different types of bridges and determine the degree and the range of the ballast loosening caused by movement of the bridge expansion joint.
朴魯春,李長白,徐修之,金萬在,崔龍煥,禹元亨 대한감염학회 1971 감염 Vol.3 No.1
A radiolgic examination of small intestine in 15 patients of typhoid fever admitted to Kyungpook National University Hospital was carried out during the period from Apr. 1969 to Sep. 1969. The result could be devided in two mainf findings, the first that may repressnt inflammatory changes and the second that is compatible with toxic ileus. 1. The former findings in detail were; filling defects in barium column 47%, ulceration 47%, edematous folds 20%, and extrinsic indentation 67%. 2. The latter in detail were; dilatation of loops 100%, delayed passing time 40%, gas distension 40%, segmentation & scattering 27%, and double contrast shadow 33%.
Mini - Pilot Scale Production of Homopolymer and Block Copolymer by Anionic Polymerization
Noh, Si Tae,Park, Yeung Ho,Lee, Hyung Woo,Kang, Shin Choon 한국공업화학회 2001 Journal of Industrial and Engineering Chemistry Vol.7 No.4
In order to obtain a large amount of polymer samples with a well-controlled molecular weight and polydispersity index, a bench scale reactor system for anionic polymerization was built instead of the traditional break-seal method. Homopolymers were successfully prepared from non-polar monomers in amounts of 40∼350g with well-defined structures. The major process variables were found to be the type of initiator, monomer concentration, and the volume of the reaction mixture. When a higher monomer concentration or larger reaction mixture volume was used, the removal of reaction heat became critical. In the case of a polar monomer, close control of the anionic polymerization was required to obtain a lower PDI. 1n the preparation of a diene-acryl block copolymer, it was found that the thorough removal of any impurities from the second monomer was critical for suppressing the generation of a homopolymer.
지역사회 독거노인의 건강관리 및 일상생활지원 서비스 경험: 포커스 그룹을 활용한 주제 분석 연구
박연환(Park, Yeon-Hwan),임경춘(Lim, Kyung-Choon),조비룡(Cho, Be Long),고하나(Ko, Hana),이유미(Yi, Yu Mi),노은영(Noh, Eun-Young),류소임(Ryu, So-Im),장선주(Chang, Sun Ju) 한국노인간호학회 2019 노인간호학회지 Vol.21 No.3
Purpose: The purpose of this study was to describe the experiences and needs for healthcare and daily life support services in community-dwelling elders living alone. Methods: A focus group interviewing approach was adopted for this study. From November 13 to 14, 2018, three focus groups with a total of 22 elders living alone were interviewed using semi-structured research questions. The collected data were analyzed using thematic analysis. Results: From the analysis, three main themes and six sub-themes emerged. One main theme was “complaints about lack of information”. Another theme was “pros and cons of service experiences”. The other theme was “needs for recipient-centered services”. Conclusion: The findings of the study provide deep understanding on the experiences of healthcare and daily life support services for elders living alone. Healthcare providers should be aware of these experiences and the needs of elders living alone when they develop elder-tailored integrative programs.