ETAMs 용액내에서 p-Nitrophenylvalate의 가수분해반응에 미치는 o-Iodosobenzoate Ion의 촉매효과

김정배 ( Jeung Bea Kim ) 한국환경과학회 2011 한국환경과학회지 Vol.20 No.1

In this study, reaction model and reactions rate accelerated by o-iodosobenzoate ion(IBΘ) on hydrolysis reaction of p-nitrophenyl valate(NPV) using ethyl tri-octyl ammonium mesylate(ETAMs) for quaternary ammonium salts, the phase transfer catalysis(PTC) reagent, were investigated. The effect of IBΘ on hydrolysis reaction rate constant of NPV was weak without ETAMs solutions. Otherwise, in ETAMs solutions, the hydrolysis reactions exhibit higher first order kinetics with respect to the nucleophile, IBΘ, and ETAMs, suggesting that reactions are occurring in small aggregates of the three species including the substrate(NPV), whereas the reaction of NPV with OHΘ is not catalyzed by ETAMs. Different concentrations of NPV were tested to measure the change of rate constants to investigate the effect of NPV as substrate and the results showed that the effect was weak. This means the reaction would be the first order kinetics with respect to the nucleophile. This behavior for the drastic rate-enhancement of the hydrolysis is referred as ``Aggregation complex model`` for reaction of hydrophobic organic ester with o-iodosobenzoate ion(IBΘ) in hydrophobic quarternary ammonium salt(ETAMs) solutions.

ETAM을 이용한 슈퍼컴퓨터의 실제 활용에 관한 연구

김승남,이영학,윤광심 朝鮮大學校 經營經濟硏究所 2004 經營經濟硏究 = Management and economics research Vol.27 No.1

고등학생의 모바일러닝 수용의도에 영향을 미치는 요인의 구조적 관계 규명 : ETAM을 중심으로

이정민,노지예 한국정보교육학회 2014 정보교육학회논문지 Vol.18 No.4

본 연구는 고등학생의 모바일러닝 수용의도에 영향을 미치는 요인의 구조적 관계를 규명하고자 확장된 정보 기술수용모형(ETAM)을 바탕으로 외부변수인 모바일효능감, 개인혁신성, 사회적영향력이 용이성과 유용성을 통 해 모바일러닝 수용의도에 영향을 미칠 것으로 가정하였다. 이를 위해 편의표집으로 고등학교의 3학년 재학생 289명의 모바일러닝 수용의도와 영향요인에 관한 설문 조사를 실시하고, 데이터를 분석하였는데 그 결과는 다음 과 같다. 모바일효능감, 개인혁신성은 용이성에 유의한 영향을 미쳤으며, 모바일효능감, 사회적영향력, 용이성은 유용성에 유의한 영향을 미치는 것으로 나타났다. 또한 유용성과 용이성은 수용의도에 유의한 영향을 미치는 것 으로 나타났다. 따라서, 고등학생의 모바일러닝 사용의도를 높이기 위해서는 학습자의 모바일효능감, 개인혁신성 과 사회적 영향력을 증진시키는 것이 필요할 것으로 사료된다. This study investigated the structural relationships among factors on intention to use mobile learning and suggests practical strategies to enhance learners’ behavior intention in secondary school. In this study, we hypothesized that mobile computing self-efficacy, personal innovativeness, and social influence had positive effects on perceived usefulness and perceived ease of use, which ultimately had positive effects on intention to use mobile learning. In order to examine structural relationship among variables, we surveyed 289 high school students in spring semester of 2014. After collecting data, we examined causal relationship among variables using Structural Equation Modeling. The results of this study are as follows: First, mobile computing self-efficacy and personal innovativeness significantly affected perceived ease of use. Second, mobile computing self-efficacy, social influ-ence, and perceived ease of use significantly affected perceived usefulness. Lastly, perceived usefulness and perceived ease of use significantly affected intention to use mobile learning of high school students.

특수대학원 비대면 강의 교육서비스 품질의확장된 기술수용모델 적용과 몰입, 지속수강의도 간 관계

김재금 인문사회 21 2022 인문사회 21 Vol.13 No.3

A Relationship Between the ETAM of Non-face-to-face Lecture Education Service Quality at Special Graduate Schools, Flow,and Continuing Course IntentionJaekum Kim Abstract: This study verified the relationship between Extended Technology Acceptance Model (ETAM), education service quality, flow, and continued course intention by applying the non-face-to-face class. An online survey was conducted(N=336). For statistical analysis, measurement model verification and path analysis were conducted with AMOS 27.0. The research results are as follows. First, the perceived ease of use had relationship between certainty>responsiveness>tangibles(-)>professionalism. Second, perceived usefulness had a relationship between tangibles>reliability>responsiveness>professionalism(-). Third, perceived ease showed a relationship with flow. Fourth, perceived ease had an effect on usefulness. Fifth, usefulness had a very large effect on continued course intention. but had no effect on flow. This study fulfill a practical role of fundamental of research in creating a satisfactory operating environment and establishing strategies for non-face-to-face classes in special graduate schools in the future. Key Words: Special Graduate School, Educational Service Quality, ETAM, Flow, Continuous Course Intention 특수대학원 비대면 강의 교육서비스 품질의확장된 기술수용모델 적용과 몰입, 지속수강의도 간 관계김 재 금* 요약: 본 연구는 확장된 기술수용모델(ETAM)의 외생변인으로 비대면 수업 교육서비스 품질을 적용하여 기술수용과 몰입, 지속수강의도의 관계를 검증했다. 이에 계속학습자인 특수대학원생이 성공적으로 학업을 마치도록 기초자료의 역할을 하는 것이 연구의 목표이다. 선행연구와 이론과 모델을 토대로 <연구문제>, <가설>을 상정하였고 온라인 설문 조사를 했다. 통계분석은 AMOS 27.0로 구조방정식으로 측정모델 검증과 경로 분석을 진행했다. 연구결과는 다음과 같다. 첫째, 특수대학원 비대면 수업 교육서비스 품질은 확신성>반응성>유형성(-)>전문성이 인지된 용이성과의 관계를 지녔다. 둘째, 인지된 유용성은 유형성>신뢰성>반응성>전문성(-)이 관계를 지녔다. 셋째, 기술수용모델의 인지된 용이성이 몰입과의 관계를 보였다. 넷째, 인지된 용이성은 유용성에 영향을 미쳤고 다섯째, 인지된 유용성은 지속수강의도에 매우 큰 영향력을 보인 반면 몰입은 영향력이 존재하지 않았다. 본 연구는 공급자 관점이 아닌 수요자인 특수대학원생의 인식조사를 바탕으로 향후 특수대학원 비대면 수업의 만족스러운 운영 환경조성과 전략 수립에 기초자료의 실무적 역할을 다하고자 하였다. 핵심어: 특수대학원, 교육서비스 품질, 확장된 기술수용모델, 몰입, 지속수강의도 □ 접수일: 2022년 6월 15일, 수정일: 2022년 6월 21일, 게재확정일: 2022년 6월 28일* 우즈베키스탄 한국국제대학교 부총장(Professor, Uzbekistan-International Univ. of Korea, Email: jkkim0328@hanmail.net)

확장된 기술수용모형(ETAM)을 적용한 혁신 전시회 관람객의 행동의도 연구: 주관적 지식의 조절효과

쩡잉,최정자,마추 한국무역연구원 2020 무역연구 Vol.16 No.3

Purpose The purpose examines the structural relationships among exhibition innovation, belief (perceived usefulness, ease of use) and visitors’ behavior intention using the Extended Technology Acceptance Model (ETAM). Moreover, this study investigates the moderating effect of subjective knowledge consisting of absolute and relative knowledge in the relationships among exhibition innovation, belief (perceived usefulness, ease of use) and attendees’ behavior intention. Design/Methodology/Approach This study collected survey data from 254 visitors at the 4th industrial revolution exhibition called the World IT Show (WIS) 2018 at the COEX in Korea. Confirmatory Factor Analysis (CFA) and multi-group analysis using structural equation modeling were used to analyze the data and test hypotheses. Findings First, this study found that the partial mediation model had a better fit of the structural relationships among the exhibition innovation, belief(perceived usefulness, perceived ease of use), and behavior intention. Second, the results of this study showed that the proposed 10 hypotheses were all accepted. Finally, it was found that subjective knowledge had a partial moderating impact on the relationship between exhibition innovation and behavior intention. Research Implications Such findings indicate that professional exhibition planners (PEOs) and exhibitors need to be aware of visitors’ predisposition to behavior intention via the belief of innovation. PEOs should take into account that visitors be provided with a broad understanding of the 4th industrial revolution and its core technologies according to their level of knowledge. Furthermore, booth managers might use product demonstrations to help visitors familiarize themselves with exhibit innovation, so that the learning curve to use the new product and service does not appear too steep.

Extended Technology Acceptance Model(ETAM) through Acceptance of Sports Applications

( Jeong Hyung Cho ),( Eun Joo Cha ),( Young Je Kim ) 한국체육학회 2015 국제스포츠과학 학술대회 Vol.2015 No.1

Purpose: This study aims to analyze the acceptance aspects of smart-phone sports applications. For this study, playfulness factors perceived to be appropriate for the sports application environment were extended, based on Davis` technology acceptance model to investigate the structural model of sports application acceptance factors. Method: In order to achieve this study purpose, the Extended Technology Acceptance Model(ETAM) was applied to users who downloaded and used sports applications. For accurate sampling, subjects were chosen using two screening questions. A total of 500 questionnaires were collected and finally, 467 questionnaires were chosen as effective samples, except 33 ones with unreliable responses. Then, collected data were processed, according to the study purpose. For analysis of collected data, frequency analysis, reliability analysis and were conducted using SPSS 21.0, and confirmatory factor analysis and structural equation model analysis were conducted using the AMOS 21 program. Result: According to the result of AMOS structural equation analysis, first, hypothesis 1 was adapted, since perceived playfulness significantly influenced perceived ease of use. Second, hypothesis 2 was adapted, since perceived playfulness significantly influenced the attitude towards apps. Third, hypothesis 3 was adapted, since perceived ease of use significantly influenced perceived playfulness. Fourth, hypothesis 4 was adapted, since perceived ease of use significantly influenced perceived usefulness. Fifth, hypothesis 5 was rejected, since perceived ease of use did not significantly influence the attitude towards apps. Sixth, hypothesis 6 was rejected, since perceived usefulness did not significantly influence the attitude towards apps. Seventh, hypothesis 7 was adapted, since the attitude towards apps significantly influenced behavioral intention. Conclusion: In conclusion, perceived ease of use and perceived playfulness is influenced attitudes in sports applications can be seen that attitude also affects the behavior. Recent research applications accepted around the perceived playfulness in numerous studies because there appears little difficult to understand the determinants of technology users only functional aspects of innovation. This may be considered the user`s side and seen that the subjective. In particular sport applications can have a communications, entertainment, factors that encourage playfulness of such information. If we believe this perceived playfulness to add a variable that it is suitable for high-impact research was verified from the results. This suggests that more users recognize the playfulness high to use the sport applications more positively.

틱톡 라이브 커머스 지속이용의도에 미치는 영향에 관한 연구

방하용(Helong Fang),김순홍(Soon-Hong Kim) 한국물류학회 2023 물류학회지 Vol.33 No.2

라이브 커머스(Live Commerce)는 새로운 온라인쇼핑 방식으로서 실시간 커뮤니케이션, 제품 및 서비스의 대리 체험, 다양한 제품 정보를 확인할 수 있어 소비자들에게 전통적인 온라인쇼핑보다 더 편리하고, 더 많은 신뢰를 받으면서 큰 만족을 줄 수 있다. 또한 코로나19(COVID-19)로 인해 언택트 소비방식이 활발하게 발전됨에 따라 라이브 커머스는 중국에서 대폭적인 성장을 이루었다. 본 연구는 중국의 대표적인 라이브 커머스 ‘틱톡’을 이용하는 사용자들을 대상으로 온라인에서 설문조사를 실행하였다. 수집된 설문지는 SPSS 22.0 및 Amos 22.0을 사용하여 분석하였다. 본 연구는 확장된 기술수용모형(Extended Technology Acceptance Model: ETAM)을 이용하여 중국에서 인기가 많은 라이브 커머스 플랫폼인 틱톡(Tik Tok)의 소비자 지속이용의도에 미치는 영향에 대해 분석하였다. 실증적 분석결과 외생변수 상호작용의 도입으로 확장된 기술수용모델이 더 나은 예측력과 설명력을 갖게 되었다. 상호작용은 지각된 쾌락성, 용이성, 유용성 및 신뢰성에유의한 영향을 미치는 것으로 나타났다. 본 연구의 응답자들은 80% 이상이 젊은 사람들이기 때문에 모두 온라인쇼핑에 익숙하고, 또한 초기의 기술수용모델에 비해 온라인쇼핑에서 지각된 용이성의 중요도가 떨어지기 때문에 지각된 용이성은 만족도에 통계적유의성이 없는 것으로 나타났다. Live Commerce is a new online shopping method that is more convenient than traditional online shopping through real-time communication, proxy experience of products or services, and various products, and can give great satisfaction while receiving more trust from consumers. In addition, due to COVID-19, untact consumption methods have been actively developed, and live commerce has achieved massive explosive growth in China. This study conducted an online survey of users using China TikTok live commerce. The collected questionnaires were analyzed using SPSS 22.0 and Amos 22.0. This study analyzed the impact of Tik Tok, a popular live commerce platform in China, on consumer sustainability intention using the Extended Technology Acceptance Model (ETAM). As for the empirical analysis results, the expanded technology acceptance model has better predictive and explanatory power due to the introduction of external factor interactions. Interaction was found to have a significant effect on perceived pleasure, ease, usefulness, and reliability. The respondents of this study are all familiar with online shopping because they are more than 80% young, and the perceived ease of online shopping is less important than the initial technology acceptance model, and the perceived ease has no statistical significance in satisfaction.

확장된 기술수용모델(ETAM)을 적용한 생활무용참여자의 O2O(Online to Offline)생활무용 매칭 서비스 플랫폼 수용 관계 분석

이지설,임선영 대한무용학회 2023 대한무용학회논문집 Vol.81 No.3

This study empirically applied the relationship between the intention to accept and the act of using the O2O Dance for all matching service plat- form, which is expected to enable more efficient access to living dance par- ticipants for living dance participants, by applying it to an expanded tech- nology acceptance model. In order to achieve the purpose of the study, the following conclusions are presented based on the results derived from the structural equation analysis after collecting and constructing the ques- tionnaire data, which is a measurement tool, for the hypotheses established. First, the perceived ease of the technology acceptance model had a sig- nificant effect on the perceived usefulness. Second, the perceived ease and perceived usefulness of the technology acceptance model had a significant effect on the acceptance intention of the O2O dance for all matching serv- ice platform. Third, the perceived enjoyment of the technology acceptance model did not have a significant effect on the acceptance intention of the O2O dance for all matching service platform. Fourth, the acceptance in- tention of the O2O dance for all matching service platform had a sig- nificant effect on the act of use.

확장기술수용모형(ETAM)을 이용한 디지털 매뉴팩처링의 성공적 도입에 영향을 주는 요인 분석

정세현,문덕희,박희창 대한산업공학회 2006 산업공학 Vol.19 No.3

확장된 정보기술수용모델(ETAM)을 적용한 SNS 특성이 온라인 구전(e-WOM)에 미치는 영향

이현수,이운영,황병조,박노현 한국유통경영학회 2024 유통경영학회지 Vol.27 No.1

Purpose: This study strove to investigate the causal relationship between SNS characteristics, extended information technology acceptance model (ETAM) and online word of mouth(e-WOM) with restaurants as the subjects. In addition, it was strove t o understand t he i nf ulential p rocess of r estaurant SNS characteristics on extended information technology acceptance model and online word of mouth, deduce the strategic factors to be considered at the time of executing marketing activities by using SNS. Research design, data, and methodology: Data collection was carried out for 5 days f rom April 5 to A pril 9 , 2022. A total of 400 c opies of questionnaires were distributed and 373 of the retrieved questionnaires after having excludes those that were completed insincerely were used in the final analysis. To verify the study hypothesis, structural equation model(SEM) analysis was executed by using statistics package AMOS ver. 25.0. Results: First, it w as f ound t hat i nformativity, reliability and amusement have significant positive ef f ect on p erceived u sef ulness. Second, it w as f ound t hat informativity, amusement and interactivity have significant positive effect on perceived ease of use. Third, it was found that informativity and amusement have significant positive effect on perceived enjoyment. Fourth, it was found that perceived usefulness and perceived enjoyment have positive effect on the sustained intention to use. Fif th, as the result of verif ication of hypothesis that sustained intention to use SNS will have significant positive effect on intention for online word of mouth, it was found to impart positive effect. Implications: T his study strove t o assess the consumer b ehavior of the S NS users with restaurants as the subjects. This study attempted to present the SNS characteristics by applying extended information technology acceptance model and can be said to be academically significant in having pursued research on the attitude of consumers in accommodating information technology. There is a need to pursue study in the future by further subdividing the s tudy subjects.