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Changes in the External Heat Environment of Building Evaporative Cooling Systems in Response to Climate Change (기후변화 대응 건축물 기화냉각시스템 적용에 따른 외부 열환경 변화 연구)

  • Yoon, Yong-Han;Kwon, Ki-Uk
    • Journal of Environmental Science International
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    • v.27 no.12
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    • pp.1261-1269
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    • 2018
  • The purpose of this study was to investigate changes in the external thermal environment, following the application of evaporative cooling systems in buildings, in response to climate change. In order to verify changes in the external thermal environment, a T-test was performed on the microclimate, Thermal Comfort Index (TCI), and building surface temperature. Differences in microclimate, following the application of the evaporative cooling system in the building, were significant in terms of temperature and relative humidity. In particular, temperature decreased by more than 7% when the evaporative cooling system was applied. According to the results of the Thermal Comfort Index analysis, the Wet-Bulb Globe Temperature (WBGT) was below the limit of outdoor activities, indicating that outdoor activities were possible. The Universal Thermal Climate Index (UTCI) values were within the very strong heat stress range when the evaporative cooling system was not applied, When the system was applied, the UTCI values were within the strong heat stress range, indicating that they were lowered by one level. The building surface temperature decreased by ~10% or more when the evaporative cooling system was applied, compared to when it was not applied. Finally, the outside surface temperature of the building decreased by ~12% or more when the system was applied, compared to when it was not applied. We conclude that the energy saving effect of the building was significant.

A Study on the Attachment Building Process of Digital Products based on the User's Behavior (사용행동에 기반을 둔 디지털 제품의 애착형성과정 연구)

  • Hwang, Yeon-Hee
    • Journal of the Korea Convergence Society
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    • v.10 no.1
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    • pp.115-121
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    • 2019
  • This study presents "Indispensability" and "Irreplaceability" as new variables for studying the attachment process of digital products that are different from physical products. To analyze this quantitatively, we will set up an integrated model to explore how attachment can be formed through different product-user interactions and time value which are necessary for attachment formation. Analysis of 197 respondents' data for empirical analysis showed that system-centric interactions did not affect the duration of use, whereas user-centric interactions affected the duration of use. In addition, the effects of the period of use on the Indispensability and the Irreplaceability were demonstrated, and the effects on the Indispensability were greater than Irreplaceability.

Factors Influencing Intention of Intervening towards Elder Abuse among Nurses in the Emergency Department (응급실 간호사의 노인학대 개입의도 영향요인)

  • Jeong, Ji Hye;Jang, Mi Heui
    • Journal of East-West Nursing Research
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    • v.25 no.1
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    • pp.60-68
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    • 2019
  • Purpose: The purpose of this study was to examine the factors influencing intention of intervening towards elder abuse among nurses in the emergency department. Methods: A cross-sectional descriptive design was used. A convenience sample of 209 emergency room nurses working in university hospitals and general hospitals completed the questionnaires. Multiple regression analysis was performed to examine predictors of intention of intervening towards elder abuse. Result: Awareness of elder abuse, legal and institutional knowledge, attitude, subjective norm, and self-efficacy were positively correlated to the intention of intervening towards elder abuse. Factors of the intention of intervening towards elder abuse in emergency room nurses were awareness of elder abuse, followed by subjective norm and attitude. Conclusion: The findings suggest that it is necessary to educate emergency room nurses in order to improve awareness and knowledge of elder abuse. From the nursing practice and hospital organization level, specific interventions and strategies to increase the assessment and intervention of elder abuse are needed.

A First Principles Study of Mn on AlGaP2 Semiconductor Surface (AlGaP2 반도체내와 표면의 Mn에 대한 제일원리 해석)

  • Kang, Byung Sub
    • Journal of the Semiconductor & Display Technology
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    • v.20 no.1
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    • pp.12-17
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    • 2021
  • The electronic and magnetic properties for Mn-adsorbed on the chalcopyrite (CH) AlGaP2 semiconductor are investigated by using first-principles FPLMTO method. The clean CH-AlGaP2 without adsorbed Mn is a p-type semiconductor with a direct band-gap. The Mn-adsorbed CH-AlGaP2 exhibits the ferromagnetic state. It is more energetically stable than the other magnetic ones. The interstitial site on P-terminated surface is more energetically favorable one than the Al/Ga-terminated surface, or the other adsorbing sites. In the case of Mn-adsorbed Al/Ga-terminated surface, it is induced a strong coupling between Mn-3d and neighboring P-3p electrons. The holes of partially unoccupied minority Mn-3d state and majority (or minority) Al-3p or P-3p state are induced. Thus a high magnetic moment of Mn is sustained by holes-mediated double-exchange coupling. It is noticeable that the semiconducting and half-metallic characteristics of CH-AlGaP2:Mn thin film is disappeared.

Consumer prosocialness and the attitude-intention relations in fashion product recycling (소비자 친사회성과 패션 제품 재활용에 대한 태도-의도 관계)

  • Lee, Minsun;Lee, Hyun-Hwa
    • The Research Journal of the Costume Culture
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    • v.29 no.3
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    • pp.437-452
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    • 2021
  • The objectives of this study were: (1) to identify differences in consumer attitudes and intentions to recycle fashion products using three types of recycling (including resale, reform, and donation), and (2) to examine the moderating effects of consumer prosocialness on the relationships between attitude and intention for each type of fashion product recycling. Men and women aged 20 years and over were recruited from a marketing research firm panel. Participants completed an online questionnaire incorporating measures for attitudes and intentions to resale, reform, and donate fashion products, prosocialness, frequency of purchasing fashion products, monthly amount of spending on fashion products, and demographic information. Data from 224 participants were analyzed using SPSS 25.0 and PROCESS macro. The results demonstrated that consumers had significantly different attitudes and intentions depending on type of fashion product recycling. Consumers had more positive attitudes toward donation compared to resale and reform types of recycling. Consumer intentions toward resale and donation were significantly higher than their intention to reform. Furthermore, this study confirmed that the attitude-intention gap in fashion product recycling can be explained by individual prosocialness. The moderating effects of prosocialness on the associations between attitude and intention to recycle were significant. The implications of increasing consumers' behavior intention to recycle fashion products was discussed and future research suggestions are provided.

A Study Investigating the Relationships between Selfie Practices on Social Media, Muscularity and Body Fat Dissatisfaction among Young Korean Men (남성의 소셜 미디어 셀피 활동과 근육 및 신체 지방 불만족에 관한 연구)

  • Lee, Minsun
    • Journal of the Korean Society of Clothing and Textiles
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    • v.45 no.3
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    • pp.510-524
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    • 2021
  • Selfie practices on social media can result in negative body image for men. The current study investigated the dual body image pathway model for the relationship between selfie practices on social media and body satisfaction, with internalization as a mediator. Structural equation modeling analyses supported our research model when studying 446 young Korean male Instagram users. The results indicated that selfie editing behavior, but not selfie browsing behavior, significantly predicted an increased internalization of a body ideal. The positive associations between internalization, muscularity dissatisfaction, and body fat dissatisfaction were confirmed. Additionally, the indirect effects of selfie editing behavior on muscularity and body fat dissatisfaction due to internalization were significant. The study confirmed the detrimental effects of selfie behavior on body satisfaction for male social media users. The results provided valuable information that selfie editing may be a risky behavior since it can result in developing muscularity and body fat dissatisfaction. Theoretical contributions and practical implications were discussed. Future research should address the age and cultural differences that may elucidate the impacts of selfie practices on men's body image concerns.

Identifying Trajectories of Behavioral Problems in Children with Allergic Diseases: Secondary Data Analysis of the 5th to 7th Panel Study of Korean Children (알레르기질환 아동의 문제행동 변화유형 분석: 5~7차 한국아동패널 자료를 이용한 2차자료분석)

  • Son, Miseon;Ji, Eunsun
    • Journal of Korean Academy of Nursing
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    • v.50 no.6
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    • pp.822-836
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    • 2020
  • Purpose: This study aimed to identify latent classes of behavioral problem trajectories in children with allergic diseases and investigate their predictors. Methods: This study used data from the 5th to 7th Panel Study of Korean Children. The participants included 840 children aged 4~6 years with allergic diseases. Statistical analyses were conducted using latent class growth analysis and multinomial logistic regression. Results: The trajectories of both internalizing and externalizing behavioral problems in children with allergic diseases were classified into five groups, that is deteriorative, recovering, changing 1 (decreasing-increasing), changing 2 (increasing-decreasing), and low state persistent group. For the internalizing behavioral problems, predictors were temperament, father's education, family interaction, and disconnection in peer interaction. For the externalizing behavioral problems, predictors child's gender, temperament, marital conflict, parenting stress, family interaction, and parenting environment. Conclusion: Deteriorative group has high-risk behavioral problems in children with allergic diseases. We suggest to provide interventions considering latent problem trajectories based on ecological environments for allergic children.

Consumer shopping perceptions of an Internet of Things environment (사물인터넷 환경에서의 소비자 쇼핑 인식)

  • Lee, Minsun;Lee, Hyun-Hwa
    • The Research Journal of the Costume Culture
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    • v.29 no.1
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    • pp.1-15
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    • 2021
  • The Internet of Things (IoT) has gained enormous popularity in various fields of industry. An IoT shopping environment is considered an effective tool for convenient use by consumers. Perceived values (including convenience and privacy risks) of IoT shopping can be the main factors that influence consumers' shopping intentions. The current study proposed a research model based on a value-based adoption model, which integrated perceived benefit and sacrifice, shopping attitude, and shopping intention in an IoT shopping environment. As potential customers, participants in their 20s and 30s were recruited through a marketing research firm. Responses collected via an online questionnaire validated the proposed research model and hypothesis. The results confirmed significant, positive relationships between perceived benefit, including both remote control and access convenience, and consumers' positive attitudes toward IoT shopping. The association between perceived privacy risk and consumers' shopping attitudes was not significant. The indirect effects of two benefits of IoT shopping on shopping intention were also significant and positive. From a practical perspective, this study can help marketers and service providers manage their IoT shopping platforms or applications more effectively to attract consumers. The implications and limitations of this study are discussed. Directions for future research and development of IoT shopping environment are suggested.

The Influence of Attitude, Subjective Norm, and Self-efficacy on Prevention Behaviors of Particulate Matter (PM10-2.5) Exposure in Young Adults (성인 초기의 태도, 주관적 규범, 자기효능감이 미세먼지 노출저감화행위에 미치는 영향)

  • Shin, Hye Sook;Ji, Eun Sun;Koo, Jee Hyun;Kim, Ju Hee
    • Journal of East-West Nursing Research
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    • v.28 no.1
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    • pp.41-48
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    • 2022
  • Purpose: The purpose of this study was to identify factors influencing prevention behaviors for particulate matter exposure in young adults. Methods: A convenience sample of 330 young adults was recruited from the community. Data were collected using a structured questionnaire and analyzed by descriptive statistics, t-test, ANOVA, Pearson's correlation coefficients, and stepwise multiple regression analysis with the SPSS/WIN 26.0 program. Results: The factors affecting prevention behaviors of particulate matter exposure were self-efficacy (β=.54 p<.001), subjective norm (β=.18, p<.001) and using the air purifier (β=.-17, p<.001). These variables had a 46% variance to explain prevention behaviors for particulate matter exposure. Conclusion: Findings showed that 'self-efficacy' and 'subjective norm' were important factors influencing prevention behaviors of particulate matter exposure in young adults. Thus, we need to consider the positive impact of prevention behaviors of particulate matter exposure and increase the chances of prevention behaviors of particulate matter exposure program for young adults.

A Study on Aspects of Transmedial Enjoyment of Game Users (게임 사용자의 트랜스미디어적 향유 양상 연구)

  • Ahn, Jin-Kyoung
    • Journal of Convergence for Information Technology
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    • v.11 no.8
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    • pp.119-128
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    • 2021
  • This study defines the integrated game experience of game users that across internal and external media of game as the transmedia enjoyment of game. This study categorizes the cases and analyze features. Game users have four types of transmedial enjoyment. The expansion type is characterized by the user's desire to solve the uncertainty, and the transmission type is characterized by the emergence of alternative play spaces. In the permeation type and the circulation type, it is observed users participate more in the content can be re-contextualized and based on real world knowledge.