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최범준,김현식 한국마케팅학회 2015 ASIA MARKETING JOURNAL Vol.17 No.2
This paper investigates how servicescape perception influences customer experience quality in hedonic service settings. In addition to the direct effect of servicescape quality on customer experience quality, the indirect effects of servicescape quality on customer experience quality via employee-to-customer interaction quality and peer-to-peer interaction quality are also investigated. We collected data through a self-administered survey. The proposed relationships were tested using structural equation modeling. The results show that servicescape quality influences customer experience quality both directly and indirectly through employee-to-customer interaction quality and peer-to-peer interaction quality, and customer experience quality influences customer loyalty. Additionally, we find that the indirect path via peer-to-peer interaction quality is significant only in a low-satisfaction customer group. The indirect effect of servicescape quality perception through peer-to-peer interaction quality is significant only in low-satisfaction customer groups. Therefore, if evaluations for this indirect effect fall below an acceptable level, it should be addressed first before improving on other attributes. However, after this point, further improvements offer few if any gains; therefore, service firms should allocate their resources to quality improvements to other factors. This study is the first to investigate the indirect effects of servicescape quality on customer experience quality via peer-to-peer interaction quality in hedonic service settings. Additionally, this study demonstrates that the significance of this indirect effect applies only to a low-satisfaction customer group.
최범준,박장식,송종관,윤병우,Choi, Beom-Joon,Park, Jang-Sik,Song, Jong-Kwan,Yoon, Byung-Woo 한국전자통신학회 2015 한국전자통신학회 논문지 Vol.10 No.2
본 논문에서는 야간 CCTV 영상을 활용하여 보행자를 검출하고 추적하는 방법을 제안하고 추적 성능을 분석한다. 유사 Haar 특징을 이용하여 Adaboost 알고리즘으로 학습하고 종속분류기로 객체를 검출한다. 파티클 필터를 활용하여 검출된 보행자를 추적한다. 야간 CCTV영상에 대하여 파티클 필터의 객체 추적에 효율적인 파티클 수와 분포를 실험을 통하여 제시하였다. 골목길 등에서 취득한 야간 CCTV영상에 대하여 검출과 추적성능을 검증하였다. In this paper, it is proposed to detect and track pedestrian and analyse tracking performance with nighttime CCTV video. The detection is performed by a cascade classifier with Haar-like feature trained with Adaboost algorithm. Tracking pedestrian is performed by a particle filter. As results of experiments, it is introduced that efficient number of particles and the distributions are applied to track pedestrian at the night-time. Performance of detection and tracking is verified with nighttime CCTV video that is obtained at alleys etc.
인포미디어리의 사용과 브랜드가 온라인상에서 소비자의 구매의도에 미치는 영향에 관한 연구
최범준(Beom Joon Choi),송미령(Mee Ryoung Song),주우진(Wu Jin Chu) 한국소비자학회 2002 소비자학연구 Vol.13 No.2
One of the biggest gains for online consumers is the decreased cost of searching for product information. In the past, search cost was so expensive that consumers had to depend on extrinsic cues such as brand and price. However as search cost went down, consumers began to obtain more information from the Internet, especially from the infomediary. Due to the plethora of product and price information on the Internet the consumers dependency on the brand is changing. Also the presence of the manufacturer brand, the online retailer brand, and the infomediary reputation is making cues more varied and complex. While examining all of the three cues mentioned above, this paper focuses on how the online consumer interprets the cues from the infomediary and the online retailer differentially, and how the two cues interact with the manufacturers brand. We found that there is a Complementary Effect between the manufacturer brand and the online retailer brand, and a Synergistic Effect between the manufacturer brand and the infomediary reputation. Namely, the role of manufacturer brand and the retailer brand is somewhat similar, so a lack of online retailer brand can be complemented by a strong manufacturer brand name and vice versa. Also there are no synergistic effect of having both a strong manufacturer brand and a strong retailer brand. However, the infomediary reputation and the manufacturer brand work in a multiplicative way to bring about either positive or negative synergies, depending on the strength of the two cues. In other words, the both cues need to be strong in order to have a strong positive effect on purchase intention.
최범준(Bumjoon Choi),이상우(Sang Woo Lee),우환영(Hwan-Young Woo),엄길호(Kilho Eom) 대한기계학회 2014 대한기계학회 춘추학술대회 Vol.2014 No.11
Amyloid fibrils, which play a vital role on disease expression, have recently been found to exhibit the excellent mechanical properties such as elastic modulus in the order of 10 GPa, which is comparable to mechanically strong proteins such as spider silk protein. We study the mechanical deformation mechanisms and properties of amyloid fibrils by using atomistic simulations. It is shown that the legnth scale of amyloid fibril governs its deformation mechanisms in such a way that shear deformation dominates the mechanics of a short amyloid fibril with its length of 10 nm. The length-dependent bending behavior of amyloid fibrils has been well depicted by Timoshenko beam model. Our study highlights the mechanical deformation mechanisms and properties of protein fibrils are governed by their structural features such as length scales.