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어선용 고효율 시리즈 (KF 시리즈) 프로펠러에 대한 성능 연구
장진열(Jin-Yeol Jang),김문찬(Moon-Chan Kim),이원준(Won-Joon Lee),문원준(Won-Jun Mun),이창섭(Chang-Sup Lee),문일성(Il-sung Moon) 한국해양환경·에너지학회 2012 한국해양환경·에너지학회 학술대회논문집 Vol.2012 No.5
The MAU series has been usually used for the fishing vessel"s propeller, which has been improved in consideration of the efficiency as well as the cavitation point of view in PNU The high efficiency standard series propeller(KF series) has been applied to the design of 52ton class fishing vessel"s propeller in the previous study. The experimental study for the performance of the design propellers called KF series for 52ton class fishing vessel has been conducted with five cases in KORDI towing tank The model tests have been carried out at different pitch ratio and expanded area ratio in comparison with the standard propeller to make the series chart‘ The KF series chart and the formula for performance expression will be completed on the basis of the experiment result.
어선용 고효율 시리즈 (KF 시리즈) 프로펠러에 대한 성능 연구
장진열(Jin-Yeol Jang),김문찬(Moon-Chan Kim),이원준(Won-Joon Lee),문원준(Won-Jun Mun),이창섭(Chang-Sup Lee),문일성(Il-sung Moon) 대한조선학회 2012 대한조선학회 학술대회자료집 Vol.2012 No.5
The MAU series has been usually used for the fishing vessel's propeller, which has been improved in consideration of the efficiency as well as the cavitation point of view in PNU. The high efficiency standard series propeller(KF series) has been applied to the design of 52ton class fishing vessel's propeller in the previous study. The experimental study for the performance of the design propellers called KF series for 52ton class fishing vessel has been conducted with five cases in KORDI towing tank. The model tests have been carried out at different pitch ratio and expanded area ratio in comparison with the standard propeller to make the series chart. The KF series chart and the formula for performance expression will be completed on the basis of the experiment result.
기술수용모형을 통한 디지털 물류 플랫폼에서의 사용의도에 미치는 요인에 관한 연구
장진열(Jin-Yeol Jang),송상화(Sang Hwa Song) 한국SCM학회 2022 한국SCM학회지 Vol.22 No.1
With the growth of the global economy, along with the rapid spread of mobile devices, e-commerce and COVID-19, transactions between shippers and logistics service companies and domestic import and export trades have shown a drastic increase. Platforms merging from the 4th industrial revolution have allowed Small and Medium Enterprises (SME) logistics service companies to participate as equal bidding service providers in Business-to-Business (B2B) logistics field. However, SME logistics services have experienced difficulties in accessing and utilizing the B2B logistics platforms because of the existing trading practices, such as information asymmetry and closures led by existing large corporations in the logistics industry. Therefore, it is necessary for the SME to study the factors that influence users’ decision to use the platform when securing its competitiveness in the logistics field. Since it is difficult to reflect a company’s relationship characteristics of B2B transactions with existing Technology Acceptance Models(TAMs), it is extended by adding fair trade and risk factors to study the technology acceptance behavior of users. The studies show that social influence, price efficiency and fair trade are the crucial variables for the users’ decision to use the platform. It also demonstrates that fair trade, in correlation to risk, has the significant impact on users’ acceptance of the platform. Based on the results of this study, it is beneficial if a company designs a platform structure from the perspective of fair trade and risks when developing a B2B platform in the future.
진영호(Young Ho Jin),박상규(Sang Gyu Park):권석환(Seok Hwan Kwon):윤태호(Tai Ho Yoon),장기용(Kie Young Jang),정원후(Weon Hu Chung):장진열(Jin Yeol Jang) 한국중독정신의학회 2000 중독정신의학 Vol.4 No.1
The purpose of this study is to identify characteristic personality trait of methamphetamine abuse patients by analyzing MMPI profiles. 52 methamphetamine abuse patients and 52 healthy subjects completed MMPI. MMPI profiles in two groups were analyzed by t-test and discriminant function analysis. The mean T scores of MMPI profiles in methamphetamine abuse patients were analyzed by multivariate cluster analysis to identify differences and characteristics among 4 groups with similar MMPI profile findings. Methamphetamine abuse patients showed higher scores in F, Hs (1), Hy (3), Pd (4), Pa (6), Sc (8), and Ma (9) profiles of MMPI than normal controls did, especially higher score in Pd (4). Methamphetamine abuse patients didn t have a single typical personality trait, but most of them had antisocial personality traits. They showed increased hostility, impulse control impairment, and decreased frustration tolerance. To establish therapeutic plan and predict prognosis in methamphetamine abuse patients, the understanding of characteristic personality trait is needed.