• Asia pacific journal of information systems
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• 제22권3호
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• pp.29-52
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• 2012

As sustainability has grown into a key global issue, more and more information technology (IT) products have adopted these concepts to attract consumers. However, these products potentially require consumers' physical or economic sacrifice at least for a short period of time. Therefore, the reason of consumers' adoption of sustainable IT products cannot be fully explained by the two traditional values: hedonic and utility values. However, expectancy-value theory, which has been used to explain the relationship between value and behavior, still takes hedonic value and utility value into consideration. The purpose of this study is to suggest an amended expectancy-value theory to better explain the adoption of IT products that consider sustainability. For this purpose, two social values-the normative value based on the Schwartz's model of moral norm and the eudemonic value of the Stoic philosophy-were added to the individual values to examine which value particularly influences the adoption of sustainable IT products. In addition, the moderating effect of perceived sustainability between four values and adoption of sustainable IT products was verified.

• 유통과학연구
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• 제15권10호
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• pp.51-63
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• 2017

Purpose - The current study examines the shopping behavior of Chinese tourists who purchase Korean cosmetics when visiting Korea, based on expectancy-disconfirmation of shopping satisfaction and brand attitude toward Korean cosmetics. A moderating effect of consumer conformity on the relationships between cosmetics selection factors and two dimensions of disconfirmation - expectation and performance is also examined. Research design, data, and methodology - We conducted a survey with 250 Chinese tourists who visited Jeju, Korea and had purchased Korean cosmetics during their stay. Excluding 43 respondents' inputs because of incomplete answers and missing values, 207 responses were used in the final analysis. All hypotheses were tested using structural equation model (SEM). Results - We found that the Chinese tourist expectations had positive impact on their satisfaction, and the factors for cosmetic selection had a positive effect on shopping satisfaction and brand attitude. A moderating effect of consumer conformity was found to be significant. Conclusions - Given the significantly increased demand for Korean cosmetics from Chinese tourists, Korean cosmetics firms need to better understand cosmetics selection attributes and preference of Chinese tourists, which can provide a guideline to develop retail stores and distribution outlets for Chinese tourists.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권8호
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• pp.3568-3584
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• 2016

In mobile opportunistic networks (MONs), human-carried mobile devices such as PDAs and smartphones, with the capability of short range wireless communications, could form various intermittent contacts due to the mobility of humans, and then could use the contact opportunity to communicate with each other. The dynamic changes of the network topology are closely related to the human mobility patterns. In this paper, we propose a social motivation-aware mobility model for MONs, which explains the basic laws of human mobility from the psychological point of view. We analyze and model social motivations of human mobility mainly in terms of expectancy value theory and affiliation motivation. Furthermore, we introduce a new concept of geographic functional cells, which not only incorporates the influence of geographical constraints on human mobility but also simplifies the complicated configuration of simulation areas. Lastly, we validate our model by simulating three real scenarios and comparing it with reality traces and other synthetic traces. The simulation results show that our model has a better match in the performance evaluation when applying social-based forwarding protocols like BUBBULE.

• The Journal of Asian Finance, Economics and Business
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• 제7권6호
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• pp.95-107
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• 2020

By applying behavioral intention theories and the theory of diffusion of innovation in organizations, this study identified several factors influencing the intention to apply management accounting in enterprises in Vietnam. Research data was collected from the questionnaire sent to Vietnamese enterprises in 2019, collecting 542 observations from accountants and directors. The data is, then, synthesized by excel file, conformity check, and processed by SPSS 20 software with descriptive statistics and multiple regression analysis. The results showed four factors that affect the intention to apply management accounting in enterprises in Vietnam: (1) Performance expectancy; (2) Effort expectancy; (3) Perceived trust; and (4) Subjective norms. The study pointed out that the above factors explain 60.618% of the variation of "intention to apply management accounting", in which, Subjective norms has the strongest impact (regression coefficient is 0.238). The findings also show that raising the awareness of managers and accountants about the role of management accounting, improving the qualifications and knowledge of accountants, and increasing the trust of managers about management accounting information are needed to increase the level of management accounting application in Vietnamese enterprises. The study also proposes recommendations to improve the effectiveness of management accounting for managers in operation and decision-making.

• 응용통계연구
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• 제33권2호
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• pp.171-184
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• 2020

미국 메이저리그 야구 경기는 야구공을 추적하는 3대의 고속 카메라를 통해 모든 투구에 대한 궤적 데이터 PITCHf/x를 수집하고 공개한다. 선행 연구에서는 PITCHf/x 데이터를 통해 각 투구의 기대 피루타수를 계산하고 이를 토대로 투구의 질을 평가했다. 다만 기대 피루타수는 경기 득점으로 매번 이어지지 않기 때문에 각 투구가 승리에 기여하는 영향을 직접적으로 평가하지 못한다. 이 논문에서는 득점 기댓값과 득점 가치의 개념을 조합해 투구에 대한 기대 득점 가치를 계산하고 이를 통해 투구의 질을 랜덤 포레스트 모형으로 평가한 뒤, 기대 피루타수를 이용한 투구의 질 평가와 비교 분석한다.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2005년도 추계학술대회 및 정기총회
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• pp.299-320
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• 2005

To rapidly respond to uncertainties in the business environment whilst remaining competitive, every organization needs to be able to successfully introduce and manage organizational change. Cognizant of the role of information systems (IS) as an enabler of organizational change, many organizations have paid attention to Enterprise Resource Planning (ERP) systems for successful organizational change primarily because of their change-driving forces across organizations. In this study, we focus attention on the role of readiness for change in the ERP systems adoption. Readiness for change described as views about the need for organizational change is posited to be and antecedent of two expectancies about the need for organizational change is posited to be an antecedent of two expectancies about the system. performance expectancy and effort expectancy, which lead to actual system use. In order to further establish th relevance of readiness for change as a determinant of two expectancies, computer self-efficacy is considered to be other key predictor as well. In addition, this study proposes that the personal characteristics of organizational commitment and perceived personal competence play roles of important determinants of readiness for change. Based on data gathered from the users of the ERP systems, structural equation analysis using LISREL provides significant support for the proposed relationships. Theoretical and practical implications are discussed along with limitations.

• 지식경영연구
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• 제16권4호
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• pp.191-213
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• 2015

With the advancement of virtual reality technology, virtual reality contents and devices are being competitively released. This research deals with an early stage adoption model of a motion-sensing input device which enhances the user experience of these virtual reality contents and devices. In contrast to the previous research on the adoption or resistance of innovative products, this work compares and analyzes the antecedents in MIR(Model of Innovation Resistance) of resistance-perspective as well as those in UTAUT2(Extended Unified Theory of Acceptance and Use of Technology) and IDT(Innovation Diffusion Theory) of adoption-perspective, and suggests a resistance-incorporated adoption model from a new viewpoint. The analysis of questionnaire data indicates the following results: Performance expectancy, effort expectancy, price value, hedonic motivation in UTAUT2 and visibility in IDT have a significant negative influence on innovation resistance. Compatibility in IDT and MIR exerts a positive influence on perceived value. Social influence and hedonic motivation in UTAUT2 positively relates to perceived value. Higher innovation resistance results in lower perceived value, with innovation resistance and perceived value negatively and positively affecting intention to use, respectively.

• 간호행정학회지
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• 제5권1호
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• pp.169-180
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• 1999

The purpose of this study was to identify the degree of stress and job satisfaction and the relationship of stress and job satisfaction of oriental hospital nurses. The subjects were 255 nurses of 9 oriental hospital in Taegu and Pusan cities and data were collected from 20 March to 10 May 1998. The instruments used for this study were a survey of genernal characteristics(7 items). stress(6 items) and job satisfaction(20 items). Analysis of data was done by use of mean, percentage, t-test, ANOVA and pearson correlation with SPSS program. The results of this study are as follows : 1) The average item score for stress was 3.08. Religion, duration of nurse expectancy and work motivation among sociodemographic characteristics were significantly different with the degree of stress. 2) The average item score for job satisfaction was 2.84. Education, religion, marital state, carrier history, duration of nurse expectancy and work motivation among sociodemographic characteristics were significantly different with the degree of job satisfaction. 3) There were significant negative correlation among the variables : working volume and group conflict factors · role implementation fators${\cdot}$personal socialization fators/nursing skill and role implementation fatal's· personal socialization fators/rolesharing with peers and role implementation fators/relationship with co-workers and group conflict factors${\cdot}$role implementation fators${\cdot}$personal socialization fators/relationship with patients and role implementation fators/relationship with supervisors and role implementation fators. And there was a significant positive correlation between role-sharing with peers and decision-making fators.

• 보건교육건강증진학회지
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• 제9권2호
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• pp.1-11
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• 1992

전세계적으로 볼 때, 보건분야는 전반적으로 향상되는 추세를 나타내고 있습니다. 특히 평균수명의 증가와 영아사망률의 감소가 대표적인 것입니다. 서기 2000년이 되면 소아마비가 사라지고, 나병, 홍역, 요오드 결핍증과 같은 문제들이 실질적으로 완전히 해결될것입니다. (중략)

• 대한기계학회논문집A
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• 제24권10호
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• pp.2654-2663
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• 2000

Steam turbine rotors are the most critical and highly stressed components of a steam power plant; therefore, the life expectancy of the turbine rotor is an important consideration for the safety of a steam power plant. The objective of this paper is to develop a life estimation program for turbine rotors for all possible operating conditions. For this purpose, finite element analysis was carried out for four normal operating modes (cold, warm, hot and very hot starts) using ABAQUS codes. The results are made into databases to evaluate the life expenditure for an actual operating condition. For any other possible abnormal operating condition, the operating data are transmitted to the server (workstation) through a network to carry out finite element analysis. Damage estimation is carried out by transmitting the finite element analysis results to the personal computer, and then the life expectancy is calculated.