아바타와의 동일시가 가상 패션 아이템 속성 지각 및 구매의도에 미치는 영향

최우진,이유리,Woojin Choi,Yuri Lee 한국패션비즈니스학회 2024 패션 비즈니스 Vol.28 No.2

Within the metaverse platform, users engage in communication with others through 'avatars' reflecting their own identities. Users experience various virtual fashion items through avatars, and the fashion industry anticipates avatars wearing virtual fashion items as an emerging business opportunity. Many fashion brands are currently releasing virtual fashion items specifically designed for avatars. In this study, we examined the impact of user identification with their avatar on their perception of the attributes of virtual fashion items (investment attractiveness, scarcity, playfulness, and aesthetics) and its influence on behavioral intentions. The research involved a survey of 250 females with prior knowledge of the metaverse. Structural equation modeling analysis was conducted to examine research hypotheses and validate the model. The results confirmed that as users within the metaverse perceive greater identification with their avatar, they also perceive the attributes of virtual fashion items more favorably. This finding affirms the self-reference effect, where users positively evaluate objects associated with themselves. Additionally, perceiving the attributes of virtual fashion items was found to be positively linked to purchase intentions for virtual products and actual interest in the brand. Lastly, a higher intention to purchase virtual fashion items was associated with forming a more favorable attitude toward the respective brand. Consequently, this study provides academic and practical implications for marketing strategies within the metaverse, emphasizing the active utilization of avatars and elements that facilitate user-avatar identification for effective engagement.

팝업 개념을 적용한 식공간의 유형적 특징에 관한 연구 -서울시 경의선 숲길 일대 사례를 중심으로-

최우진 ( Choi Woojin ),정강화 ( Chung Gangwha ) 한국공간디자인학회 2022 한국공간디자인학회논문집 Vol.17 No.7

(Background and Purpose) Consumers in modern society want emotional experience rather than rationality and focus on brand image and value rather than product function and efficiency. Consequently, all experiences conducted in the consumption space are subject to consumption. The pop-up concept, which appeared in the 2010s with this sentimental space strategy, was introduced in pop-up stores, and the behavior of value consumption and preference consumption was conspicuous; eating space, which applied the pop-up concept, also appeared. A new form of pop-up eating space was recently created around the Gyeongui Line Forest Road. Against this background, this study analyzed pop-up eating spaces frequently found around the Gyeongui Line Forest Road in Seoul. Based on this, it is meaningful to determine the type of pop-up eating space and its characteristics and to increase the utilization of various pop-up contents in the future. (Method) In order to categorize pop-up eating space types, this study analyzed pop-up eating space examples through pop-up conceptual elements. To this end, we established a theoretical consideration of pop-up concepts and elements and organized pop-up spatial elements according to the purpose of this study. Afterward, six pop-up eating space elements were derived from a previous paper, and eight pop-up eating space cases were selected from the Gyeongui Line Forest Road, where pop-up spaces are frequently observed; subsequently, the collected data were analyzed. (Results) The types of eating spaces that appeared in pop-up eating space cases were classified into three forms according to the period in this study. It can be categorized as a single pop-up type that operates a pop-up eating space for a short period of 1-2 months through space rental or building rental, a conversion pop-up type that plans and operates pop-up contents with a unified atmosphere, and an edit pop-up type that plans and operates pop-up contents of various genres according to unspecified cycles. (Conclusions) This study confirmed that the pop-up eating space currently appearing without a clear identity is changing into a variety of pop-up contents and multiple spaces, and the types of pop-up eating spaces are classified to derive typographical features. As a result of the case analysis, it is judged that the utilization of pop-up concepts in the eating space area will increase as attempts to experience the identity of the eating space with various genre changes intersect. However, regional characteristics observed in the selected cases are limited because there are frequent pop-up restaurants around the Gyeongui Line Forest Road. It is hoped that, through this study, the importance of pop-up eating spaces will be recognized, and various pop-up content planning of eating spaces will be attempted in the future.

자동차 시트에서 자동으로 좌우 엉덩이 부분 독립제어가 가능한 Air bladder를 이용한 척추 골반 균형 개선 효과에 대한 연구

최우진(Woojin Choi),여성윤(Seongyun Yeo),강구창(Guchang Kang),김성훈(Sunghoon Kim),손문준(Moonjun Sohn) 한국자동차공학회 2022 한국자동차공학회 부문종합 학술대회 Vol.2022 No.6

This study is to investigate changes in the drivers spinal pelvis posture between imbalanced and balanced sitting in the smart car seat using radiographic parameters. A smart car seat capable of balancing the air bladders was used to automatically measure the pressure difference between the participants hips and balance them on IoT based controller. When comparing x-ray imaging of balanced seating with initial standing versus unbalanced seating for a total of 32 applicants, the shoulder and pelvic height differences were statistically significantly reduced during a 25-minute balanced seating (p=0.0026, 0.0013 versus p=0.0188, 0.0105, respectively). There was no statistically significant difference in radiographic changes between initial and 25-minute unbalanced seating. The use of smart car seats equipped with air bladder allows drivers with spinal, shoulder, and pelvic imbalance to sit balanced while driving, thereby reducing the progress of driving-related-spine diseases and ultimately contributing to improved driving comfort.

The Intrinsic Motivation for Continuous Usage Intention of Generative AI In the Fashion Design Field : A Self-Determination Theory Perspective

최우진(Woojin Choi),장세윤(Seyoon Jang),박신영(Shinyoung Park),김하연(Ha Youn Kim) 경희대학교 산학협력단 예술디자인연구원 2024 예술· 디자인학연구 Vol.27 No.1

수직적 브랜드확장 평가에 대한 확장방향과 권력거리신념의 상호작용효과

최우진(Choi, Woojin),나은정(Na, Eunjung),이학식(Lee, Haksik) 한국마케팅학회 2017 마케팅연구 Vol.32 No.1

수직적 브랜드확장은 상향확장과 하향확장으로 나뉘는데, 이 방향성은 확장브랜드의 가치 뿐 아니라 모브랜드의 가치에도 큰 영향을 미친다. 그러나 아직까지 브랜드확장 방향에 따른 소비자 평가에 어떤 변수들이 영향을 미치는가에 대한 연구는 부족한 실정이다. 이러한 선행연구의 한계에 착안하여 본 연구는 권력거리신념(power distance belief) 개념을 도입, 수직적 브랜드확장의 방향과 소비자 권력거리신념이 소비자의 확장브랜드 및 모 브랜드 평가에 어떤 영향을 미치는지를 규명하고자 하였다. 연구결과의 요약과 시사점은 다음과 같다. 첫째, 소비자 권력거리신념은 확장방향이 확장브랜드 평가에 미치는 영향을 조절하는 것으로 나타났다. 즉, 상향확장시 권력거리신념이 높을수록 소비자는 확장브랜드에 대해 부정적으로 평가한다는 것을 확인하였다. 둘째, 브랜드확장 자체에 대한 평가 및 모브랜드 평가 또한 확장방향과 권력거리신념에 따라 다른 것으로 나타났다. 상향확장(vs. 하향확장)의 경우 권력거리신념이 높은 소비자일수록 저가 브랜드의 상위시장 진입에 대해 부정적으로 인식, 모브랜드에 대해 더 부정적으로 평가하였다. 따라서 상향확장시 기업은 확장브랜드 뿐만 아니라 모브랜드에 대한 이미지가 훼손되지 않도록 소비자 권력거리를 감안, 이에 맞는 마케팅 전략을 수립하는 것이 필요할 것이다. The direction of vertical brand extension is one of the key decisions that firms must make. Stretching their brands either upward or downward will determine the position of an extended brand as well as of a parent brand. However, scant research has explored the factors influencing the effect of the direction of vertical brand extension on consumers’ attitudes toward the extension. To fill this gap in the literature, the current research examines how the direction of vertical brand extension and consumers’ power distance beliefs jointly influence consumers’ attitudes toward an extended and a parent brand. The results are as follows. First, consumers’ power distance beliefs interact with the direction of vertical brand extension to influence their evaluations of an extended brand. In the case of an upward extension versus a downward extension, as consumers’ power distance beliefs increase, their evaluations of an extended brand were negative. Second, consumers’ evaluations of a brand extension itself and of a parent brand depend on their power distance beliefs and the direction of brand extension. In an upward extension, consumers with higher power distance beliefs are more likely to perceive the entry of a lower-tier brand into an upper market as being negative, resulting in more negative evaluations of a parent brand. In conclusion, marketers would be wise to pay greater attention to the differences in consumers’ power distance beliefs in their target markets, and respond appropriately with differentiated marketing strategies.

사회적 반투명성을 활용한 온라인 그룹 학습 시스템 개발에 대한 연구

최우진(Woojin Choi),이문환(Moon-Hwan Lee) 한국디자인학회 2022 디자인학연구 Vol.35 No.4

자동차 시트에서 자동으로 좌우 엉덩이 부분 독립제어가 가능한 Air Bladder를 이용한 척추 골반 균형 개선 효과에 대한 연구

최우진(Woojin Choi),여성윤(Seongyun Yeo),강구창(Guchang Kang),김성훈(Sunghoon Kim),손문준(Moonjun Sohn) 한국자동차공학회 2022 한국 자동차공학회논문집 Vol.30 No.12

최신 산업동향을 고려한 공업단지 사용량 원단위 분석 연구

김기범,유영준,최우진,구자용,Kim, Kibum,Yu, Youngjun,Choi, Woojin,Koo, Jayong 대한상하수도학회 2017 상하수도학회지 Vol.31 No.5

This study derived the unit of industrial water usage reflecting the latest industry trends. Available for establishing plans such as the master plan for water supply system and analyzed changes in the basic unit by a comparison with the current basic unit values. This study analyzed 4,038 samples with a sampling error of less than 1.5 % at the 95 % confidence level after removing outliers according to a log-normal distribution. As a result, the unit of industrial water usage per site area in the whole manufacturing industry was 7.11 m3/1,000m2/d. The ten industrial categories (C10, C13, C20, C21, C22, C25, C27, C30, C32, C33) showed a similar unit value compared to before, and the four industrials categories (C11, C17, C22, C31) showed a more unit value than before. With regard to the nine industrial categories (C14, C15, C16, C18, C19, C24, C26, C28, C29), the unit value decreased. Cases that companies examined before were the same as the companies examined in this study were analyzed. The result that the changes in the unit industrial water usage were reasonable was obtained. However, in some industrial categories (C17, C14, C24, C29), the unit value was changed by a small number of companies with large-scale water use or unit value of sampling had a large deviation. It was considered necessary to survey them periodically. The unit of industrial water usage derived by the survey in this study reflects the current industrial trends in 2016. Water use in manufacturing companies has continuously changed by the development of manufacturing technologies and simplification of manufacturing processes. In order to deal with this, it is considered necessary to survey the usage of industrial water periodically from a long-term perspective.

An Improved Harmonic Compensation Method for a Single-Phase Grid Connected Inverter

칸 레이안,최우진,Khan, Reyyan Ahmad,Choi, Woojin The Korean Institute of Power Electronics 2019 전력전자학회 논문지 Vol.24 No.3

Grid-connected inverters should satisfy a certain level of total harmonic distortion (THD) to meet harmonics standards, such as IEEE 519 and P1547. The output quality of an inverter is typically degraded due to grid voltage harmonics, dead time effects, and the device's turn-on/turn-off delay, which all contribute to increasing the THD value of the output. The use of a harmonic controller is essential to meet the required THD value for inverter output under a distorted grid condition. In this study, an improved feedforward harmonic compensation method is proposed to effectively eliminate low-order harmonics in the inverter current to the grid. In the proposed method, harmonic components are directly compensated through feedforward terms generated by the proportional resonant controller with the grid current in a stationary frame. The proposed method is simple to implement but powerful in eliminating harmonics from the output. The effectiveness of the proposed method is verified through simulation using PSIM software and experiments with a 5 kW single-phase grid-connected inverter.

A Method to Improve the Performance of Phase-Locked Loop (PLL) for a Single-Phase Inverter Under the Non-Sinusoidal Grid Voltage Conditions

칸 레이안,최우진,Khan, Reyyan Ahmad,Choi, Woojin The Korean Institute of Power Electronics 2018 전력전자학회 논문지 Vol.23 No.4

The phase-locked loop (PLL) is widely used in grid-tie inverter applications to achieve a synchronization between the inverter and the grid. However, its performance deteriorates when the grid voltage is not purely sinusoidal due to the harmonics and the frequency deviation. Therefore, a high-performance PLL must be designed for single-phase inverter applications to guarantee the quality of the inverter output. This paper proposes a simple method that can improve the performance of the PLL for the single-phase inverter under a non-sinusoidal grid voltage condition. The proposed PLL can accurately estimate the fundamental frequency and theta component of the grid voltage even in the presence of harmonic components. In addition, its transient response is fast enough to track a grid voltage within two cycles of the fundamental frequency. The effectiveness of the proposed PLL is confirmed through the PSIM simulation and experiments.