• Title/Summary/Keyword: prior experience

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Seismic capacity re-evaluation of the 480V motor control center of South Korea NPPs using earthquake experience and experiment data

  • Choi, Eujeong;Kim, Min Kyu;Choi, In-Kil
    • Nuclear Engineering and Technology
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    • v.54 no.4
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    • pp.1363-1373
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    • 2022
  • The recent seismic events that occurred in South Korea have increased the interest in the re-evaluation of the seismic capacity of nuclear power plant (NPP) equipment, which is often conservatively estimated. To date, various approaches-including the Bayesian method proposed by the United States (US) Electric Power Research Institute -have been developed to quantify the seismic capacity of NPP equipment. Among these, the Bayesian approach has advantages in accounting for both prior knowledge and new information to update the probabilistic distribution of seismic capacity. However, data availability and region-specific issues exist in applying this Bayesian approach to Korean NPP equipment. Therefore, this paper proposes to construct an earthquake experience database by combining available earthquake records at Korean NPP sites and the general location of equipment within NPPs. Also, for the better representation of the seismic demand of Korean earthquake datasets, which have distinct seismic characteristics from those of the US at a high-frequency range, a broadband frequency range optimization is suggested. The proposed data construction and seismic demand optimization method for seismic capacity re-evaluation are demonstrated and tested on a 480 V motor control center of a South Korea NPP.

Three-Dimensional Video Microscopy: Potential for Improved Ergonomics without Increased Operative Time?

  • Yasmina Samaha;Edward Ray
    • Archives of Plastic Surgery
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    • v.50 no.1
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    • pp.125-129
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    • 2023
  • Three-dimensional (3D) video exoscopes are high-magnification stereo cameras that project onto monitors mounted in the operating room, viewable from different angles. Outside of plastic surgery, exoscopes have been shown to successfully improve the ergonomics of microsurgery, though sometimes with prolonged operating times. We compare a single surgeon's early experience performing free flap procedures from 2020 to 2021 using either a binocular microscope or a 3D video exoscope. Ten procedures were performed with the standard operating microscope and 8 procedures with the 3D exoscope. The microsurgeon, having minimal prior experience using an exoscope, reported less neck discomfort following the free flap procedures performed with the exoscope compared with the binocular surgical microscope. Total average operating time was comparable between the standard surgical microscope and the 3D exoscope (13.7 vs. 13.4 hours, p = 0.34). Our early experience using a 3D exoscope in place of a standard optical microscope demonstrated that the exoscope shows promise, offering an ergonomic alternative during microvascular reconstruction without increasing overall operating times. Future studies will compare free flap ischemia time between cases performed using the exoscope and the conventional binocular microscope. Medical Subject Headings authorized following words: free tissue flaps; operating rooms; ergonomics; microsurgery.

A study on User experience of Virtual Beauty Makeup Applications (가상 뷰티 메이크업 애플리케이션의 사용자 경험 연구)

  • Woo, Ji-Hye;Kim, Seung-In
    • Journal of Digital Convergence
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    • v.18 no.11
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    • pp.459-464
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    • 2020
  • This study is a study that analyzes the user experience of a virtual makeup application in the beauty industry where color or formulation testing is important. Recently, cases of beauty smart stores and beauty applications using AR and AI are increasing. However, since virtual makeup is different from testing a real product, it is necessary to derive needs through research from the user's side. In order to compare user preferences by using AR and AI cases, six factors based on the emotional interface model were analyzed through a questionnaire to identify items with statistically significant figures. As a result, the user felt comfortable with the virtual makeup function, but showed that it needs to be supplemented in terms of reliability. Since this study focused on the customer experience as a real user and identified the main experience factors and needs of virtual makeup through two types of comparison, it is hoped that this study will be useful as a prior study.

An Empirical Study on the Revitalization of O2O: A Unified View of Offline Channel and Mobile Channel (O2O 서비스 활성화 방안에 대한 실증 연구: 오프라인 채널과 모바일 채널의 통합적 관점에서)

  • Kim, Byoungsoo
    • Journal of Digital Convergence
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    • v.16 no.10
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    • pp.115-123
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    • 2018
  • This study explores unified service experience to boost O2O services. Previous studies on service management and marketing only focused on customer experience in offline stores, while prior works on information systems looked only at the experience of services in mobile applications. In this vein, this study took into accounts the characteristics of offline stores and the benefits of their mobile applications. Moreover, the final dependent variable was share of wallet to measure customer's expenditure within the category. The theoretical model was tested based on 219 consumers who frequently visit Starbucks and use its mobile application. PLS method was applied to analysis the research model and hypotheses. The analysis results showed that customer satisfaction about offline store is not significantly related to share of wallet, while satisfaction about mobile application plays a significant role in enhancing share of wallet. Hedonic and social benefits were found to have significant effects on satisfaction about mobile application. The analysis results help establish service marketing and strategies to enhance the unified customer experience of O2O service.

A Quest on Possibility of Artistic Activity for Strengthening Creativity of Gifted Children: Centering on Music Activity (영재의 창의성 신장을 위한 예술 활동의 가능성 탐색: 음악 활동을 중심으로)

  • Tae, Jin-Mi
    • Journal of Gifted/Talented Education
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    • v.20 no.3
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    • pp.789-807
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    • 2010
  • This study was carried out in order to explore possibility of artistic activity for strengthening creativity of the gifted children at home by analyzing influence of the gifted children's musical experience and interest level upon creativity. As a result of research, the gifted children's musical experience and interest level were distributed in the mid-lower rank as a whole. The mean in score of creativity was high. Among sub-spheres, originality, abstractness of titles, and resistance to premature closure were surveyed to be especially excellent. And the result of this study was indicated to be high in influence of musical experience and interest level upon creativity. Some conclusions and implications that were obtained through this study are as follows. First, to explore influence of musical experience as artistic activity upon creativity, first of all, the qualitative inspection needs to be given priority to musical activity itself, which is being experienced by the gifted children as the research subjects. Second, there is necessity of paying attention to the musical experience and interest level of the low gifted children. Third, for the gifted children prior to activation of art education, a clear reason why the art education is needed and the usefulness need to be presented.

A study on the increase of kiosk user experience in Non-face-to-face Era for the Elderly -Focused on the McDonald Kiosk- (비대면 시대 고령자의 키오스크 사용자 경험 증대 연구 -맥도날드 키오스크 중심으로-)

  • Ha, Jae-Hyeon;Kim, Seung-In
    • Journal of Digital Convergence
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    • v.19 no.8
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    • pp.285-292
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    • 2021
  • The purpose of this study is to increase the experience of using kiosks for elderly in the non-face-to-face age. Through prior research and literature research, feature of kiosks and characteristic of elderly user were identified, and improvement were suggested through Ethnography and in-depth interviews. The research method was conducted for 13 days from April 4 to 16, 2021 for 11 senior citizens in their 60s or older living in Incheon. A total of 11 people were interviewed by adding 3 people who had experience in using kiosks. As a result of the experiment, interfaces and psychological factors were derived with paint points in the process of use of the elderly, and the five improvement plan was proposed by combining them. This study is expected to serve as a source for research on the experience of elderly kiosk users or kiosk interface design.

How Do We Approach Quality Care for Patients from Middle Eastern Countries? A Phenomenological Study of Korean Nurses' Experiences

  • Jang, Dael;Choi, Seonhwa;Hwang, Gahui;Kim, Sanghee
    • Journal of Korean Academy of Nursing
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    • v.54 no.3
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    • pp.372-385
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    • 2024
  • Purpose: Although more people from Middle Eastern countries are visiting South Korea for medical treatment, Korean nurses lack experience in treating them. Understanding and describing Korean nurses' experiences can help them provide quality care to these patients by enhancing their competency in culturally appropriate care. This study described the experiences of nurses who provide care to Middle Eastern patients in clinical settings in South Korea. Methods: We conducted a phenomenological study to describe nurses' experience of caring for patients from Middle Eastern countries. Ten nurses with prior experience in caring for these patients were recruited from a university-affiliated tertiary hospital. Semi-structured face-to-face interviews were conducted between May 1 and June 4, 2020. The transcribed data were analyzed using Giorgi's phenomenological method to identify the primary and minor categories representing nurses' experiences. Results: Four major categories (new experiences in caring for culturally diverse patients, challenges in caring for patients in a culturally appropriate manner, nursing journey of mutual agreement with culturally diverse patients, and being and becoming more culturally competent) and 11 subcategories were identified. Conclusion: Nurses experience various challenges when caring for Middle Eastern patients with diverse language and cultural needs. However, nurses strive to provide high-quality care using various approaches and experience positive emotions through this process. To provide quality care to these patients, hospital environments and educational programs must be developed that center on field nurses and students and support them in delivering quality care while utilizing their cultural capabilities.

The Moderating effects of clothing consumers' regulatory focus on the relationship between shopping experience and impulsive buying (쇼핑체험과 충동구매간 관계에서 의류 구매자의 조절초점 역할에 관한 연구)

  • Suh, Yong-Han
    • Management & Information Systems Review
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    • v.32 no.2
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    • pp.237-257
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    • 2013
  • As there is impulsive buying that is pervasive phenomenon in the clothing consumption area, many academics and practitioners have been interested in it. Although prior studies have provided useful insights for understanding and predicting consumers' impulsive behavior, the findings do not clearly explain why different consumers influence impulsive behavior differently even when presented with the same shopping environment. Regulatory focus theory (Higgins, 1987, 1997, 2001) provides an insight for better understanding of consumers' impulsive responses to the elements of shopping experience. Thus, the purpose of our research was to understand the effect of consumers' regulatory focus (i.e., promotion focused vs. prevention focused) on their shopping experiences and impulsive behavior. A total of 157 data collected from female consumers lived in Ulsan and Pusan was used for this study. The results were as follows: First, sensitive experience and emotional experience have significantly positive effects on impulsive buying, but rational experience does significantly negatively effects on it. Second, to test the moderating effects of consumers' regulatory focus, responses were divided into two groups including promotion-focused group (n = 91) and prevention-focused group (n = 66) based on the relative strength of one type of their regulatory focus, which was introduced by Higgins (2001). Multiple regression analysis (independent variables: shopping experience, dependant variable: impulsive buying) was run within each group. The results showed that for the promotion-focused group, sensitive and emotional experience have significantly positive effects on impulsive buying. For prevention focused group, sensitive experience has significantly positive effects on impulsive buying and rational experience does significantly negatively effects on it. Chow's and Fisher's z-test were confirmed that the relationship between shopping experience and impulsive buying behavior was significantly different depending on consumers' regulatory focus.

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An Empirical on the Influence of Country Image of America and Previous Visit on the Cross-border Shopping Intention (미국의 국가이미지와 방문경험이 해외직구의도에 미치는 영향에 관한 실증연구)

  • Kim, Dong-Chun;Nam, Kyung-Doo
    • International Commerce and Information Review
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    • v.19 no.1
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    • pp.67-98
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    • 2017
  • This study intended to investigate to what extent country image of America and previous visit experience affect the cross-border shopping intention. In particular, the present study used a country image measurement brought from another research study the factors of which are economy-technology image, social-cultural image, and citizen image. A total of 155 respondents participated in the survey targeting Korean citizen for the present study. Single regression, multiple regression, and independent t-test were conducted for data analysis. The result of the single regression indicated that country image is a critical predictor of cross-border shopping intention. The Multiple regression revealed that among three factors composing country image, social-cultural image plays the most significant and economy-technology image plays the second-most significant role in influencing cross-border shopping intention. However, it was found that citizen image does not play a substantial role for some reason. Moreover, the result of t-test showed that those who have a prior visit experience to America are more likely to buy products online from America than those who don't have prior visit experience. More detailed findings and implications will be discussed in the manuscript.

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Effects of Entrepreneur Characteristics on Self-efficacy and Business Performance : Focused on Moderating Effects of Entrepreneurship Education and Experience in Business before Starting a Business (창업자 특성이 자기효능감과 창업성과에 미치는 영향 : 창업 전 실무경험과 창업교육의 조절효과를 중심으로)

  • Lee, Chun-Hee;Chun, Dal-Young
    • Journal of Digital Convergence
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    • v.18 no.2
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    • pp.223-233
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    • 2020
  • In academia, lots of startup-related research are conducted to improve startup performance. Most of them are concerned with entrepreneur characteristics, capabilities, and entrepreneurship. In particular, self-efficacy of enterpreneur is emphasized to improve startup performance in addition to entrepreneurial capabilities. Thus, the main research objectives of this study are as follows. First, the impact of entrepreneur characteristics is investigated on self-efficacy and startup performance. Second, the moderating effects of business experience prior to startup and entrepreneurship education are analyzed between entrepreneur characteristics and self-efficacy. Finally, managerial strategies are suggested to maximize startup performance via self-efficacy. 274 samples were collected from independent startups. The proposed research model and 17 hypotheses were verified with structural equation modeling techenique. The empirical findings are as follows. First, psychological characteristics such as achievement desire and risk tolerance positively influenced on self-efficacy. Second, business experience prior to startup showed significant moderating effects on self-efficacy with technological and marketing capabilities. and entrepreneurship education. Third, entrepreneurship education showed significant moderating effects on self-efficacy with achievement desire, risk tolerance, technological and marketing capabilities.