• Optical Science and Technology
• /
• v.14 no.4
• /
• pp.14-21
• /
• 2010

• KOREAN POULTRY JOURNAL
• /
• v.35 no.5 s.403
• /
• pp.94-98
• /
• 2003

• KOREAN POULTRY JOURNAL
• /
• v.35 no.2 s.400
• /
• pp.75-76
• /
• 2003

• Asia Marketing Journal
• /
• v.13 no.3
• /
• pp.209-231
• /
• 2011

Internet is having strong impact on the consumer's decision making process. Information search has been done actively through internet today. The online reviews can be crucial information cue to evaluate the alternarive products. The online WOM(Word-Of-Mouth) effect depends on the characteristics of information sender, receiver, and WOM. This study is to examine the influence of the online word of mouth on the consumer purchase intention and the moderating role of product involvement, consumer regulatory focus and self-efficacy. Positive customer reviews on the products influence the purchase intention positively and negative customer reviews influence it negatively. Moderating role of involvement in the causal relation between the valence of online reviews and purchase intention is tested. In case of positive WOM, it is predicted that purchase intention for high involvement products is higher than that of low involvement. In case of negative WOM, purchase intention for high involvement product is lower than that of low involvement product. And this study invetigate the moderating role of regulatory focus. In case of positive WOM, it is predicted that promotion focus oriented consumers have higher purchase intention than prevention focus oriented consumers. In case of negative WOM, prediction is that prevention focus oriented consumers have lower purchase intention than promotion focus oriented consumers. Then we examine the moderating role of self efficacy in the causal relation between the valence of online reviews and purchase intention. In case of positive WOM, it is predicted that consumers with low self efficacy have higher purchase intention than consumers with high self efficacy. In case of negative WOM, it is predicted that consumers with low self efficacy have lower purchase intention than consumers with high self efficacy. Emprical results support our prediction and four hypotheses derived from our conceptual framework are all accepted. This study suggest that the level of product involvement, consumer regulatory focus and the level of self-efficacy influence the consumer responses of the valence of online reviews. Therefore marketers need to manage online reviews based on the level of product involvement, regulatory focus orientation and the level of self-efficacy of target consumers.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
• /
• v.10 no.6
• /
• pp.215-223
• /
• 2015

Recently, in OECD countries, youth unemployment has become one of the most serious problems in society. Entrepreneurship creates innovative new companies that create more jobs than big traditional companies. In addition, entrepreneurship develops creative human resources leading to fertile ground for new technology and business innovation. Recently, regulatory theory has drawn a lot of attention and interest in the literature of psychology and marketing management. However, the theory has not been applied to the study of entrepreneurship. In this article, we try to examine the relationship among regulatory focus, entrepreneurial orientation, and entrepreneurial intentions of korean college students who show their interests in entrepreneurship. From our empirical study, we find the followings. First, promotion focus thriving on optimism, taking risks, and trying new actively affect positively on entrepreneurial orientation and entrepreneurial intention. Second, prevention focus concentrating on security, fulfilling responsibilities and maintaining efficiency does not always affect negatively on entrepreneurial orientation and entrepreneurial intention. In other words, prevention-focused students do not always have bad impression on entrepreneurship and may consider entrepreneurship as viable career path similar to average college students. Third, our empirical findings are consistent with previous studies that entrepreneurial intention is positively affected by entrepreneurial orientation.

• Korean Journal of Optics and Photonics
• /
• v.9 no.3
• /
• pp.134-141
• /
• 1998

A high performance afocal zoom telescope has been designed to operate in the 7.6${\mu}{\textrm}{m}$ to 10.3${\mu}{\textrm}{m}$ waveband for thermal imaging system. This IR zoom telescope is characterized by using of two movable optical element groups, variator and compensator, with mechanically compensated method and the positioning of these groups is controlled by means of a computerized program. The optical performance over the entire 4:1 zoom range and $\pm$2.31~$\pm$9.36 degrees field of view is near diffraction limit while maintaining a constant F-number. The all refracting surfaces of this system except only one aspheric surface are spherical curvature and the material for the optical elements is selected Ge and ZnSe which is used for correction of chromatic aberration.

• Journal of Digital Convergence
• /
• v.16 no.5
• /
• pp.199-206
• /
• 2018

The current study investigated mediating effects of self-regulatory system in the context of public service announcements (PSAs). We conducted a survey to collect participants' orientation of self-regulatory systems, emotional response and evaluation of PSAs. A total of 70 undergraduate students with mean age of 22.49 (SD = 3.22). Results showed that emotional engagement to the PSAs is affected by ad liking and, in turn, directly influences intention to act as a campaign outcome. Furthermore, our findings suggested that promotion-oriented individuals are more likely to commit PSA messages than do the prevention-oriented individuals. Therefore, messages of the PSA campaign should include hope and aspiration, indicating the connection of accomplishment and advancement.

• Journal of Korea Multimedia Society
• /
• v.12 no.4
• /
• pp.502-511
• /
• 2009

In order to simulate a depth-of-field effect in real world, there have been several researches in computer graphics field. It can represent an out-of-focused scene by calculating focal plane. When a point in a 3D coordinate lies on further or nearer than focal plane, the point is presented as a blurred circle on image plane according to the characteristic of the aperture and the lens. We can generate a realistic image by simulating the effect because it provides an out-of-focused scene like human eye dose. In this paper, we propose a method to calculate a disparity value of a viewer using a customized stereoscopic eye-tracking system and a GPU-based depth-of-field control method. They enable us to generate more realistic images reducing side effects such as dizziness. Since stereoscopic imaging system compels the users to fix their focal position, they usually feel discomfort during watching the stereoscopic images. The proposed method can reduce the side effect of stereoscopic display system and generate more immersive images.

• Journal of Korea Society of Industrial Information Systems
• /
• v.26 no.3
• /
• pp.23-39
• /
• 2021

Investment of organization in information security is increasing, but information security threats within the organization are not decreasing. The purpose of this study is to suggest a direction to increase the information security compliance intention of employees. In detail, the study presents the positive effects of security motivation and organization trust on the information security compliance intention, and presents the moderating effect of work promotion focus. Research model and hypothesis verification are confirmed through structural equation modeling and the study conducted a questionnaire technique to the employees of the organization applying the information security policy for quantitative verification. As a result, information security punishment and value congruence had a positive affect on the compliance intention by mediating organization trust. In addition, work promotion focus had a moderating effect on the positive relationship between the precedent factors on the compliance intention. The research has academic and practical implications from the viewpoint of presenting the factors of the organization's efforts to improve the level of information security compliance by insiders.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2015.05a
• /
• pp.557-560
• /
• 2015

자동초점이란 영상을 획득하는 시스템에서 고정된 촬상면에 자동으로 초점이 맺히도록 렌즈를 구동시키는 방식으로 컴퓨터비전과 카메라 등에서 매우 중요하게 사용된다. 소형 카메라의 경우 자동초점에서 렌즈구동부인 actuator의 기술은 대량생산이 이용이하고, 위치센서가 불필요하며, 회로구성이 용이한 VCM방식이 널리 사용되고 있으며, 구동의 안정성에 비해 크기와 소음이 큰 스테핑모터 방식, 크기는 가장 작지만 납 함유문제 및 습도 취약성을 갖는 피에조 방식이 있다. 그 외에 액체렌즈방식이 있는데, 소형 구조에 저전력의 장점이 있지만 화질 및 신뢰성 검증 그리고 고압이 필요한 특징을 가지는 구조도 있다. 본 논문에서 5Mpixel급 이미지 센서를 통해 획득한 영상의 선예도를 이용하여 VCM의 actuator처럼 액체렌지를 제어하여 자동으로 초점을 맞추는 제어방식을 구현하고 검증하였다.