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유춘리,( Yuefa Jia ),( Shiping Li ),( Daryll J Dalayoan ) 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.1
NO have been a primary cause of air pollution, and it is important to find efficient and economical ways to remove NO from the atmosphere. (BiO)<sub>2</sub>CO<sub>3</sub> (BOC) and BiO<sub>2</sub>-x are both emerging Bi-based semiconductor photocatalysts. In this report, Z-scheme (BiO)<sub>2</sub>CO<sub>3</sub>-BiO<sub>2</sub>-xgraphene (BOC-BiO<sub>2</sub>-x-GR) composite photocatalyst was designed for NO removal under simulated solar light irradiation. Through the optimization of the BiO<sub>2</sub>-x content, we observed that the BOC-BiO<sub>2</sub>-x (35wt%)-GR composite exhibited superior photocatalytic activities in NO removal. Detailed microstructural observation showed that the BOC-BiO<sub>2</sub>-x heterojunction was formed between BOC (013) and BiO<sub>2</sub>-x (111) planes. Theoretical calculations confirmed that the BOC and BiO<sub>2</sub>-x heterojunction favors the transfer of photo-generated electrons, which can be further enhanced by highly conductive GR sheets. O<sub>2</sub>ㆍ- and HOㆍ were observed through the ESR measurements as the main active species.
모바일 면세점 앱에서 AR 쇼핑 사용성 향상에 관한 연구: 롯데 면세점 앱을 중심으로
유춘리,남인용,딩메이쥔,왕수홍,설원원 국제문화기술진흥원 2024 The Journal of the Convergence on Culture Technolo Vol.10 No.1
Due to COVID-19, domestic Duty-free shops have been severely impacted, and with the expansion of the untact market, the proportion of mobile shopping has increased. So far, mobile duty-free shop AR shopping is not active, and related research is scarce. Therefore, we aims to enhance Duty-free Shopping APPs with AR technology by researching the needs of foreign users. First, in the mobile duty-free shop app, the AR shopping interface must be in a prominent position to be open and easy to use. Second, there should be an explanation or help for location and function so that all users can easily recognize the AR shopping interface. Third, when wearing duty-free items in the AR shopping interface or adding them to the storage and shopping cart of interest, the interface must be simple and flexible, making it convenient to use and operate. Fourth, technical improvements must be made to prevent errors. We expect that the research will help develop AR shopping technology and domestic duty-free shop AR shopping technology and revitalize online and offline duty-free shops.
틱톡(TikTok) 운동 라이브 방송 서비스의 지속적 사용의도에 영향을 미치는 요인: 밴드왜건 효과와 챌린지 참여를 중심으로
유춘리,남인용 (주)에스비에스 2024 미디어경제와 문화 Vol.22 No.3
본 연구는 밴드왜건 효과와 챌린지 참여를 중심으로 틱톡 운동 라이브 방송 서비스의 지속적 사용의도에 영향을 미치는 여러 요인들의 직간접적인 효과를 분석하였다. 중국 이용자를 대상으로 이루어진 설문조사 분석 결과, 첫째, 틱톡 운동 라이브 방송 서비스 사용자들의 소속감이 동조와 모방에 유의한 영향을 미치는 것으로 나타났다. 둘째, 밴드왜건 효과요인들(동조, 모방)이 챌린지 참여, 만족에 유의한 영향을 미치는 것으로 나타났지만 지속적사용의도에 유의한 영향을 미치지 않는 것으로 나타났다. 셋째, 챌린지 참여가 만족에 유의한 영향을 미치는 것으로 나타났지만 지속적 사용의도에 유의한 영향을 미치지 않는 것으로 나타났다. 또한 틱톡 운동 라이브 방송 서비스에 대한 만족이 지속적 사용의도에 유의적인 영향을 미치는 것을 확인하였다. 넷째, 밴드왜건 효과 변수들(동조, 모방)이 틱톡 운동라이브 방송 서비스 지속적 사용의도에 미치는 영향은 만족에 의해 매개되는 것으로 나타났지만 챌린지 참여의 매개효과가 나타나지 않는 것을 확인하였다. 또한 챌린지 참여가 틱톡 운동 라이브 방송 서비스 지속적 사용의도에 미치는 영향은 만족에 의해 매개되는 것으로 나타났다. 마지막으로 자기표현 욕구의 조절효과 분석결과는 밴드왜건 효과요인들(동조, 모방)과 챌린지 참여 간 관계를 자기표현 욕구가 조절하는 것으로 나타났지만, 밴드왜건 효과요인들(동조, 모방)과 만족 간 관계를 자기표현 욕구가 조절하지 않는 것으로 나타났다. 또한 모방과 서비스 지속적 사용의도 간 관계를 자기표현 욕구가 조절하는 것으로 나타난반면 동조와 서비스 지속적 사용의도 간 관계를 자기표현 욕구가 조절하지 않는 것을 확인하였다. This study applied the band wagon effect theory and challenge participation factors and analyzed the direct and indirect effects of various factors affecting the intention to continue using the TikTok exercise live broadcasting service for Chinese people. First, it was found that the sense-belonging of the users of the TikTok exercise live broadcasting service had a significant effect on conformity and imitation. Second, it was found that the bandwagon effect factors had a significant effect on challenge participation and satisfaction, but they were found to have no significant effect on the intention to continue using. Third, Participation in the challenge was found to have a significant effect on satisfaction, but it was found that it did not significantly affect the intention to continue to use. In addition, it was confirmed that satisfaction had a significant effect on the intention to continue to use. Fourth, The effect of bandwagon effect variables on the intention to use was found to be mediated by satisfaction, but no mediating effect of participation in the challenge was found. In addition, it was found that the effect of participation in the challenge on the intention to continue to use was mediated by satisfaction. Finally, self-presentation desire controls the relationship between bandwagon effect factors and challenge participation, but does not control the relationship between satisfaction. In addition, it was found that self-presentation desire controls the relationship between imitation and continuous use intention of the service, while does not control the relationship between conformity and continuous use intention of the service.
유춘리,( Li Shiping ) 한국공업화학회 2020 한국공업화학회 연구논문 초록집 Vol.2020 No.-
In this study, layered V<sub>2</sub>O<sub>5</sub>@layered-ZnV<sub>2</sub>O<sub>6</sub> nanostructures were synthesized using a hydrothermal method followed with heat treatment. The heat treatment temperature has been varied to optimize the composition and CO<sub>2</sub> reduction efficient. Characterization results demonstrate that an optimized CO generation rate of 6.15 μmolg<sup>-1</sup>h<sup>-1</sup> with an approximate stoichiometric O<sub>2</sub> evolution can be achieved from V<sub>2</sub>O<sub>5</sub>@ ZnV<sub>2</sub>O<sub>6</sub> under simulated solar light irradiation, as well as relatively good selectivity and stability. The performance of optimized V<sub>2</sub>O<sub>5</sub>@ZnV<sub>2</sub>O<sub>6</sub> for CO production was 3.53 folds higher than using pure ZnV<sub>2</sub>O<sub>6</sub> sample. This reveals that ZnV2O6 nanosheets not only allow the transfer of electrons towards CO<sub>2</sub> but also provide short pathways for electron transfer, which leads to the enhanced photoactivity. In addition, V<sub>2</sub>O<sub>5</sub> presents in the sample further contribute to enhance performance of ZnV<sub>2</sub>O<sub>6</sub> hierarchical nanosheets due to enabling efficient charge carrier separation.