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- 저자 : Jinju Jang(장진주) (검색결과 2 건)
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항공사의 환경적 CSR이 고객 태도 및 충성도에 미치는 효과: 환경보호 관심의 조절효과를 중심으로
장진주 ( Jinju Jang ),유예경 ( Yekyoung Yoo ),김인신 ( Insin Kim ) 관광경영학회 2021 관광경영연구 Vol.101 No.-
The current study aims to examine the roles of airline's corporate social responsibility(CSR). Specifically, the effect of airline's environmental CSR on passengers’ attitude towards the airline and loyalty was investigated. The relationship between passengers’ attitude and loyalty was also examined. In addition, the moderating function of environmental concern was verified. The conceptual model of the study was designed based on the previous research and the research model was empirically tested. The web-based survey was conducted and analyzed the data collected from the 426 passengers who had traveled abroad by airplane within one year because the passengers should recall their flight experience. The analysis results indicated that the airlines’ environmental CSR activities influenced passengers’ favorable attitude and enhanced their loyalty; and the effect of passengers’ attitude on loyalty was also significant. Moreover, environmental concern played a significant moderating role in the relationship between airline's environmental CSR activity and customer attitude. The results of the research provided academic and practical implications.
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Jinju Jang(장진주),Taeyang Kwak(곽태양),Young Chul Kim(김영철),Heung-Jae Chun(전흥재),Dohyung Lim(임도형) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
With the introduction of additive manufacturing by selective laser melting, complex shape such as porous structure became to manufacturability. However, it is reported that the additively manufactured Ti-6Al-4V implant has low ductility due to the needle-shaped alpha prime martensitic microstructure, and can be increased through heat treatment. Therefore, this study was to confirm the effect of heat treatment through changes in the microstructure and mechanical strength of porous Ti-6Al-4V implants additively manufactured. In the case of the specimen, an irregular porous structure like bone was applied to the cervical cage. And heat treatment was performed at 650°C for 2 hours and at 800°C for 2 hours. The specimens were measured the change in microstructure with EBSD, and mechanical strength was evaluated according to ASTM F2077 standard. As a result, it was confirmed that alpha prime phase decomposition occurred and precipitation of the beta phase in the specimens heat treated at 650°C and 800°C for 2 hours. And it was confirmed that the particle size of the beta phase grew at 800°C compared to 650°C. In addition, it showed improved ductility compared to the decreased strength at 800°C. We confirmed that heat treatment at 800 °C for 2 hours on the additively manufactured porous cervical cage is a suitable condition to improve the microstructure characteristics and ductility.
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