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Effect of Gaze Direction of Human Faces on Cosmetic Paper Advertisement
Seungji Lee,Sung-Phil Kim 한국HCI학회 2017 한국HCI학회 학술대회 Vol.2017 No.2
In cosmetic paper advertisement, models are important components for marketers to imprint the products to customers (e.g. Kim’s essence). One possible method to attract attention from customers is gaze direction of a model. This study aimed to identify how a model’s gaze direction affects a customer’s gaze pattern and how it relates to purchase intention. The gender effect was also investigated. The result showed a near-marginally significant observation that when a model gazed toward us, fixation duration on the model became longer and the number of visit increased. In addition, customers attracted by the model at the first time were likely to buy the product. The different gaze patterns between male and female were observed. The study indicates that the gaze direction of a model can affect fixation duration on model, which is correlated with the first fixation on model and finally leading to purchase behavior.
Kim, Seong Kwang,Shim, Jae-Phil,Geum, Dae-Myeong,Kim, Jaewon,Kim, Chang Zoo,Kim, Han-Sung,Song, Jin Dong,Choi, Sung-Jin,Kim, Dae Hwan,Choi, Won Jun,Kim, Hyung-Jun,Kim, Dong Myong,Kim, Sanghyeon Institute of Electrical and Electronics Engineers 2018 IEEE transactions on electron devices Vol.65 No.5
<P>In this paper, we fabricated In<SUB>0.53</SUB>Ga<SUB>0.47</SUB>As-on insulator (OI) MOSFETs on Si substrates with different doping types to mimic ground plane doping using direct wafer bonding and epitaxial lift-off (ELO) techniques. We investigated the impact of doping types on the ground plane and the backgate biasing, which are important and preferable components in monolithic 3-D (M3D) integration, on the electrical properties of MOSFETs, such as the threshold voltage ( <TEX>${V} _{T}$</TEX>) and the effective mobility ( <TEX>$\mu _{\textsf {eff}}$</TEX>). It was found that <TEX>${V} _{T}$</TEX> and <TEX>$\mu _{\textsf {eff}}$</TEX> were significantly modulated by the backsubstrate doping and the backbiasing. These observations were explained by the change of carrier distributions, which were confirmed by technology computer-aided design simulation. Furthermore, we investigated the reusability of InP donor substrates for sequential epitaxial growth after ELO process toward a cost-effective M3D integration with the In<SUB>0.53</SUB>Ga<SUB>0.47</SUB>As channel.</P>
Expression of the Pro-Domain-Deleted Active Form of Caspase-6 in Escherichia coli
( Phil Young Lee ),( Jin Hwa Cho ),( Seung Wook Chi ),( Kwang Hee Bae ),( Sayeon Cho ),( Byoung Chul Park ),( Jeong Hoon Kim ),( Sung Goo Park ) 한국미생물 · 생명공학회 2014 Journal of microbiology and biotechnology Vol.24 No.5
Caspases are a family of cysteine proteases that play an important role in the apoptotic pathway. Caspase-6 is an apoptosis effector that cleaves a variety of cellular substrates. The active form of the enzyme is required for use in research. However, it has been difficult to obtain sufficient quantities of active caspase-6 from Escherichia coli. In the present study, we constructed a caspase-6 with a 23-amino-acid deletion in the pro-domain. This engineered enzyme was expressed as a soluble protein in E. coli and was purified using affinity resin. In vitro enzyme assay and cleavage analysis revealed that the engineered active caspase-6 protein had characteristics similar to those of wild-type caspase-6. This novel method can be a valuable tool for obtaining active caspase-6 that can be used for screening caspase-6-specific substrates, which in turn can be used to elucidate the function of caspase-6 in apoptosis.
Modelling and Analysis of Human Behavior Patterns in a Social Competitive Game
( Sung Phil Kim ),( Sang Ho Lee ),( Yang Seok Cho ) 한국감성과학회 2015 추계학술대회 Vol.2015 No.-
Human performance of economic decision processing tasks such as economic games can reveal characteristics of human behavior. In particular, iterative economic games involving competitive interaction between participants allow us to investigate how humans accomplish economic strategies and maximize their values in a social interaction environment. This study investigated human behavior patterns during learning to interact with each other in a social competitive game, so called the Chicken game. A number of pairs of participants performed a hundred of trials of the iterative Chicken game. We employed a typical payment plan for the game: (0, 0) KRW for mutual avoidance, (1,000, -1,000) KRW for (rush, avoidance) and (-2,000, -2,000) KRW for mutual rush. Every participant made decision of either rushing or avoidance within three seconds. A computational model to predict the decision of both participants in a pair for each trial was developed based on the self-concept of fairness as well as fairness of others. The behavioral results showed four distinct behavior patterns emerging in the middle of the series of trials: switching, mutual rush, mutual avoidance, and unfair. The model parameters fitted to each pattern were also differential, showing that our model could represent distinct patterns of a pair of people in the Chicken game. Compared to the previous behavior models, including Fehr-Schmidt model and Cox et al.’s model, our self-concept of fairness model revealed better fitting scores to behavior pattern results, measured by Bayesian information criterion (BIC). Our study shows that the concept of fairness for both the self and others may play an important role in social interaction in a competitive circumstance.
Histone H3 is Digested by Granzyme A During Compromised Cell Death in the Raji Cells
( Phil Young Lee ),( Byoung Chul Park ),( Seung Wook Chi ),( Kwang Hee Bae ),( Sun Hong Kim ),( Sa Yeon Cho ),( Jeong Hoon Kim ),( Sung Goo Park ) 한국미생물 · 생명공학회 2015 Journal of microbiology and biotechnology Vol.25 No.9
Granzyme A (GzmA) was identified as a cytotoxic T lymphocyte protease protein expressed in the nucleus. A number of nuclear proteins are well known as GzmA substrates, and GzmA is related with caspase-independent apoptosis. Histones H1, H2B, and H3 were identified as GzmA substrates through in vitro experiment with purified nucleosome. Here, we demonstrated that histone H3 was cleaved by GzmA in vivo during staurosporine-induced cell death. Moreover, histone H3 cleavage was blocked by the GzmA inhibitor nafamostat mesylate and by GzmA knockdown using siRNA. Taken together, we verified that histone H3 is a real substrate for GzmA in vivo in the Raji cells treated by staurosporin.