• 디지털융복합연구
• /
• 제17권1호
• /
• pp.43-53
• /
• 2019

이 연구는 국내 대학 소속 교수학습개발센터(CTL)의 운영과정을 신제도주의 동형화 이론을 바탕으로 고찰하는데 목적이 있다. 신제도주의자들은 조직의 구조와 행동이 조직의 자율적, 합리적 선택이라기보다는 사회에서 인정되는 가치와 규범을 반영하는 것으로 본다. 광범위한 선행연구와 관련 문헌연구 방법을 통해 그리고 동형화 이론적 틀을 바탕으로 CTL의 도입 및 확산, 제도화 과정을 분석한 결과, 국내 대학 CTL의 도입 및 확산 과정에서는 정부 주관의 강제적 동형화와 대학 간 상호 모방 효과가 상대적으로 크게 작동하였다. 또한 전문협의체인 대학교육개발센터협의회는 규범적 동형화의 직접적인 주체로서 핵심적인 역할을 수행하였다. 즉, 국내 대학 CTL은 환경에 대한 외적 정당성 확보를 위한 과정으로 볼 수 있고, 특히 대학은 정부의 평가 기준에 순응 및 동조하면서 조직 형태를 동형화시켰음을 확인할 수 있었다. 급변하는 대학교육 환경의 변화에 대응하여 CTL이 주도적으로 대학교육 발전의 엔진이 될 수 있도록 고유한 가치와 전략을 개발하고 이를 대학 실정에 맞게 발전시키는 노력이 필요하다.

• 지식경영연구
• /
• 제17권4호
• /
• pp.129-145
• /
• 2016

Nowadays, owing to the diffusion of smartphones and the growth of social networking services (SNS), the number of people who share their life with other SNS users by posting photos is increasing. The number of Instagram users has been particularly increasing since Instagram started its service in 2010. Compared to other SNS such as Facebook and Twitter, Instagram runs its service by focusing solely on photos, which is a major differentiation factor compared with other existing SNS. Previous studies, however, do not examine SNS that focus on photo sharing adequately. Therefore, we establish a hypothesis relating to the motivations behind a user's photo sharing attitude and posting intention through Instagram. Moreover, this will be achieved by employing TRA(Theory of Reasoned Action) and focusing on intrinsic and extrinsic motivations. The analysis results show that intrinsic motivation influences a user's sharing attitude and subjective norms. Apart from this, Instagram's expressivity influences a user's photo sharing attitude and posting intention.

• Asia pacific journal of information systems
• /
• 제23권2호
• /
• pp.87-109
• /
• 2013

While many surveys show very positive attitudes on the part of consumers towards eco-friendly products, the market share actually reflecting green IT purchases remains low in most countries. The motivations behind green IT purchase behavior are still obscure. Several studies have addressed the question of green IT diffusion from economic and normative viewpoints in an attempt to interpret IT adoption behavior. This study comes at the question from a different angle, namely negative frame, examining threat and coping behaviors using the Ordered Protection Motivation (OPM) model and threat appraisal theory. The results show that attitudes toward fairness and positive change, which are precedents of threat appraisal, play an important role in determining threat appraisal. Perceived threats in the green IT arena include habit change and ecological change. Appraisal for coping with these threats directly affects initial adoption behaviors regarding available green IT, and then indirectly encourages the purchase of new green IT products.

• East Asian Economic Review
• /
• 제27권1호
• /
• pp.61-85
• /
• 2023

The study aims to investigate the factors pursuing the women entrepreneurs to accept Islamic microfinance (IMF) in urban and rural areas of Malaysia. For this purpose, the study applies the Theory of Planned Behavior (TPB) and Innovation and Diffusion Theory to explain Islamic microfinance adoption. Using the structural equation model (SEM) with primary data collected from 384-woman entrepreneurs in Malaysia, the current study uses a 5-point Likert scale. On the basis of theory and collected data, the seven hypotheses are developed. All hypotheses are validated by both directly and indirectly, as well as through a mediating factor. Among the factors, knowledge about IMF and subjective norms significantly influence the acceptance of IMF. On the other hand, the perceived complexity does not show any substantial relationship to the acceptance of IMF. This outcome will be helpful in supporting policymakers, academics, and future studies and must take into account the supported factors. Therefore, the study contributes to develop an innovative framework, to create self-employment for women entrepreneurs.

• East Asian mathematical journal
• /
• 제39권3호
• /
• pp.271-278
• /
• 2023

We consider a 1-dimensional reaction diffusion equation with the following boundary conditions arising in a theory of the thermal explosion {-u"(t) = λf(u(t)), t ∈ (0, l), -u'(0) + C(0)u(0) = 0, u'(l) + C(l)u(l) = 0, where C : [0, ∞) → (0, ∞) is a continuous and nondecreasing function, λ > 0 is a parameter and f : [0, ∞) → (0, ∞) is a continuous function. We establish the extension of Quadrature method introduced in [8]. Using this extension, we provide numerical results for models with a typical function of f and C in a thermal explosion theory, which verify the existence, uniqueness and multiplicity results proved in [6].

• Geomechanics and Engineering
• /
• 제23권2호
• /
• pp.151-163
• /
• 2020

Grouting method is an effective way of reinforcing cracked rock masses and plugging water gushing. Current grouting diffusion models are generally developed for horizontal cracks, which is contradictory to the fact that the crack generally occurs in rock masses with irregular spatial distribution characteristics in real underground environments. To solve this problem, this study selected a cement-sodium silicate slurry (C-S slurry) generally used in engineering as a fast-curing grouting material and regarded the C-S slurry as a Bingham fluid with time-varying viscosity for analysis. Based on the theory of fluid mechanics, and by simultaneously considering the deadweight of slurry and characteristics of non-uniform spatial distribution of viscosity of fast-curing grouts, a theoretical model of slurry diffusion in an oblique crack in rock masses at constant grouting rate was established. Moreover, the viscosity and pressure distribution equations in the slurry diffusion zone were deduced, thus quantifying the relationship between grouting pressure, grouting time, and slurry diffusion distance. On this basis, by using a 3-d finite element program in multi-field coupled software Comsol, the numerical simulation results were compared with theoretical calculation values, further verifying the effectiveness of the theoretical model. In addition, through the analysis of two engineering case studies, the theoretical calculations and measured slurry diffusion radius were compared, to evaluate the application effects of the model in engineering practice. Finally, by using the established theoretical model, the influence of cracking in rock masses on the diffusion characteristics of slurry was analysed. The results demonstrate that the inclination angle of the crack in rock masses and azimuth angle of slurry diffusion affect slurry diffusion characteristics. More attention should be paid to the actual grouting process. The results can provide references for determining grouting parameters of fast-curing grouts in engineering practice.

• 한국IT서비스학회지
• /
• 제11권2호
• /
• pp.93-106
• /
• 2012

Recently, a Game Shut-down policy, partially limiting the time for the use of online game service, has been implemented in order to protect the youth from the excessive use of games by limiting their access to games in the late hours, based on the serious side effects of online games on the youth. However, the effectiveness of a Game Shut-down policy becomes a social issue. Thus, this study aims to investigate the alternative policies through the levels of the communications suggested by the theory of excellence, for the successful implementation of the policy. As a result of the study, the government and students, the recipient of those policies, need to strengthen their two-way communication in respect of the Game Shut-down policy, breaking from the existing views on the perception. The problem is that the current government's way of the communication for the Game Shut-down policy is one-way and it is aiming at achieving the objectives only. Thus, the communication in this manner will cause the side effect. 'the opportunistic violation of the system in the future', even if the students seemingly accept the system. Two-way communication will enhance the motivation for the voluntary acceptance of the system and lower the motivation for the opportunistic violation of the system. Thus, the government needs to strengthen two-way communication in the future.

• Wind and Structures
• /
• 제36권2호
• /
• pp.133-147
• /
• 2023

The random vibration of saddle membrane structures under wind load is studied theoretically and experimentally. First, the nonlinear random vibration differential equations of saddle membrane structures under wind loads are established based on von Karman's large deflection theory, thin shell theory and potential flow theory. The probabilistic density function (PDF) and its corresponding statistical parameters of the displacement response of membrane structure are obtained by using the diffusion process theory and the Fokker Planck Kolmogorov equation method (FPK) to solve the equation. Furthermore, a wind tunnel test is carried out to obtain the displacement time history data of the test model under wind load, and the statistical characteristics of the displacement time history of the prototype model are obtained by similarity theory and probability statistics method. Finally, the rationality of the theoretical model is verified by comparing the experimental model with the theoretical model. The results show that the theoretical model agrees with the experimental model, and the random vibration response can be effectively reduced by increasing the initial pretension force and the rise-span ratio within a certain range. The research methods can provide a theoretical reference for the random vibration of the membrane structure, and also be the foundation of structural reliability of membrane structure based on wind-induced response.

• 방사성폐기물학회지
• /
• 제16권3호
• /
• pp.291-299
• /
• 2018

파이로 공정에서는 사용후핵연료 관리 공정 개발의 일환으로 산화 우라늄을 고온 용융염 전해질계에서 전기화학적 방법으로 환원시키기 위한 전해환원 공정이 개발되고 있다. 이에 따른 전해환원 공정의 반응기 설계를 위해서는 전기화학적 이론에 기초한 모델이 요구되고 있다. 본 연구에서는 상 분리를 설명하는 phase-field 이론에 기초하여 우라늄 산화물의 전해환원 모사를 위한 1차원 모델이 개발되었다. 모델은 우라늄 산화물 내 산소 원소의 확산과 펠렛 표면에서 전기화학 반응 속도를 나타내는 매개변수를 사용하여 외부로부터 내부로 진행되는 전해환원을 잘 모사하고 있으며 계산 결과 전체 전류는 산소원소의 내부 확산에 크게 의존하는 것으로 나타났다. 전해환원 반응에 대한 모델은 대용량 장치 설계에 최적화된 조건 도출에 활용될 것으로 예상되며 장치 설계가 완료되면 공정 연계 모사에 직접 사용될 것으로 기대된다.

• 한국콘텐츠학회논문지
• /
• 제14권9호
• /
• pp.538-555
• /
• 2014

빅데이터와 관련 기술에 대하여 학계, 산업계, 공공의 관심이 크지만 아직까지 빅데이터 기술수용에 대하여 체계적으로 연구된 사례는 매우 드물다. 본 연구는 국내 초기 시장인 빅데이터 기술수용 연구를 위해 기술수용모델(TAM)을 중심 틀로 혁신확산이론(Innovation Diffusion Theory) 및 과업기술적합성(Task Technology Fit)이론을 통합적으로 활용하여 연구모형을 설정하였으며 빅데이터 기술 수용의 목적성을 기술수용모델의 조절변인으로 확장하였다. 연구결과 '주관적 규범'과 '과업기술적합성'이 TAM의 외생변인으로 가장 크게 영향을 가졌으며 기술기반의 새로운 서비스나 상품을 기획하고 개발하고자 하는 목적의 '기술활용자' 집단에게 '조직의 혁신성향'은 기술의 수용의도에 영향을 미치는 유의한 외생변인이나 단순히 기술을 이용하고자 하는 '기술이용자' 집단에게는 오히려 '주관적 규범'이 영향력을 가진 것으로 나타났다. 마지막으로 매개효과 검증에서도 유의한 차이점이 검증되었다.