• 한국기술혁신학회:학술대회논문집
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• 한국기술혁신학회 2003년도 춘계학술대회
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• pp.121-128
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• 2003

본 고는 정보통신연구개발사업 중 2001년도 산업기술개발사업을 수행하는 민간기업의 연구개발비 집행행태를 분석하고 평가등급과의 상관성을 제시하였다. 우수한 결과를 도출한 과제는 실패한 과제와 상이한 연구개발비 집행행태를 보이고 있으며, 집행행태를 토대로 과제의 성공률을 제고하기 위한 관리기법의 논리적 근거를 제시하였다.

• 기술혁신연구
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• 제6권2호
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• pp.101-121
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• 1998

Recent entrepreneurship studies emphasize the importance of entrepreneurial activities of entrepreneurs. This study focuses entrepreneurial behaviors, especially entrepreneurial networking activities of Korean high-tech ventures. Networking activities can utilize external resources which are critical to success, with less resource commitment. This study examines the relationship between characteristics of entrepreneurial networking and performance, and analyses influencing factors of entrepreneurial networking activities. Based on the data from 55 new high-tech ventures in Korea, hypotheses that the characteristics of entrepreneurial networking are related to the performance of new high-tech ventures are tested using regression analysis and t-test. Major findings of this study are as follows: (1) entrepreneurial networking are related to the performance of new high-tech ventures, (2) significant differences are found in the characteristics of entrepreneurial networking between high- and low-performance firms, (3) characteristics of entrepreneurs and firm' technological capabilities are related to the degree of entrepreneurial networking activities. Finally, managerial and policy implications of the study are presented and future research directions are also suggested.

• Journal of information and communication convergence engineering
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• 제21권4호
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• pp.306-315
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• 2023

This study proposed an SCA advice system. It is an ontology-based recommender that provides advice on appropriate computer curricula based on the behavior of high school students. The three computer curricula at Chiang Mai Rajabhat University include computer science (CS), information technology (IT), and web programming and security (WEB). This study aims to design the ontology framework for an SCA advice system. The system considers three core ontologies: student, computer-curriculum, and advice. After analyzing student behaviors, the behavior types of CS, IT, and WEB were determined to be SB-2, SB-1, and SB-5, respectively. All subjects in these three curricula were analyzed and grouped into seven groups. Their curricula were synthesized in terms of basic skills, basic knowledge, and characteristics. Finally, advice results can be obtained by consolidating the curriculum nature of the CS, IT, and WEB curricula.

• Nuclear Engineering and Technology
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• 제53권3호
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• pp.776-792
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• 2021

Conventional integral effect test facilities were constructed to enable the precise observation of thermal-hydraulic phenomena and reactor behaviors under postulated accident conditions to prove reactor safety. Although these facilities improved the understanding of thermal-hydraulic phenomena and reactor safety, applications of new technologies and their performance tests have been limited owing to the cost and large scale of the facilities. Various nuclear technologies converging 4th industrial revolution technologies such as artificial intelligence, drone, and 3D printing, are being developed to improve plant management strategies. Additionally, new conceptual passive safety systems are being developed to enhance reactor safety. A new integral effect test facility having a noticeable scaling ratio, i.e., the (UNIST reactor innovation loop (URI-LO), is designed and constructed to improve the technical quality of these technologies by performance and feasibility tests. In particular, the URI-LO, which is constructed using a transparent material, enables better visualization and provides physical insights on multidimensional phenomena inside the reactor system. The facility design based on three-level approach is qualitatively validated with preliminary analyses, and its functionality as a test facility is confirmed through a series of experiments. The design feature, design validation, functionality test, and future utilization of the URI-LO are introduced.

• Journal of Smart Tourism
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• 제3권2호
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• pp.23-36
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• 2023

Due to the phenomenon of aging, a new consumer segment known as the "new-silver generation" is emerging. Unlike the previous silver generation, this generation possesses significant economic power and consuming willingness, attracting attention from consumer goods companies. However, both the new-silver generation and the elderly face challenges in adopting contactless or self-service technologies such as self-order kiosks, resulting in negative reactions. Therefore, this study aims to investigate the attitude and response of the newsilver generation towards kiosks, as well as the factors influencing their resistance to such technology. By applying theoretical perspectives from the innovation resistance model, technostress theory, and the value-based model, this study identifies influencing factors for innovation resistance among the new-silver generation when using contactless technologies implemented in fast-food restaurants. The findings indicate that a lower awareness of new technologies and services corresponds to decreased adoption resistance, while a higher perceived value leads to more positive behaviors and attitudes among the new-silver generation utilizing kiosks at fast-food restaurants.

• 한국산업정보학회논문지
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• 제22권1호
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• pp.89-104
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• 2017

본 연구는 경쟁시장에서 기업의 기술혁신이 정체되는 이유를 '소비자의 기술이해도'와 '진화게임이론'을 사용하여 설명하고자 한다. 본 연구에서 소비자의 행동은 I영역과 II영역으로 나누어진다. 본 연구의 내용은 다음과 같이 정리할 수 있다. 먼저, I영역에서 무수히 많은 기업들은 기술경쟁을 통해 동일 범주 디지털제품의 기술적 속성을 급속히 발전시키려고 노력하며, 소비자집단은 자신들의 소비패턴을 저기술 제품에서 고기술 제품으로 빠르게 이행하려고 한다. 반면, II영역은 소비자의 기술 이해력이 점점 약해지는 구간으로 기술이 발전함에 따라 소비자집단의 제품사용에 대한 효용이 서서히 감소한다. 이에 기업들은 현재의 기술수준에 최대한 머무르고자 하고, 소비자집단 역시 이 시점의 제품기술을 최적이라고 생각하게 되면서 결국 기업들은 기술혁신을 늦추게 된다.

• 디지털융복합연구
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• 제16권4호
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• pp.69-77
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• 2018

최근 조직은 팀을 중심으로 하는 기업 구조의 변화를 겪고 있다. 따라서 본 연구에서는 팀 리더십의 중심인 공유리더십과 구성원의 혁신행동과의 관계를 살펴보고, 이들의 관계에서 신뢰가 어떠한 조절 역할을 수행하는지를 파악하고자 한다. 이를 위해, 문헌조사를 통해 공유리더십이 혁신행동에 영향을 미칠 것 이라는 연구모형 및 가설을 설정하였다. 또한, 이들의 관계에서 신뢰의 조절효과를 파악하였다. 실증분석을 위해, 대구 경북 지역의 대기업에 종사하는 조직 구성원을 대상으로 설문조사를 진행하였고, 다중회귀분석 및 계층적 회귀분석을 실시하여 가설검증을 실시하였다. 분석결과, 공유리더십은 혁신행동에 유의미한 영향을 미치는 것으로 나타났다. 특히, 구성원간의 신뢰는 공유리더십과 혁신행동의 관계를 조절하는 것으로 나타났다. 이러한 연구 결과는 인적자원의 중요성이 증대되는 현 시점에서의 기업 조직의 주요한 전략적 인적자원활용 방안으로 활용 될 것이다.

• International Journal of Naval Architecture and Ocean Engineering
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• 제10권6호
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• pp.692-710
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• 2018

The Three-dimensional (3-D) dynamical behaviors of a fluid-conveying pipe subjected to vortex-induced vibration are investigated with different internal flow velocity ${\nu}$. The values of the internal flow velocity are considered in both subcritical and supercritical regimes. During the study, the 3-D nonlinear equations are discretized by the Galerkin method and solved by a fourth-order Runge-Kutta method. The results indicate that for a constant internal flow velocity ${\nu}$ in the subcritical regime, the peak Cross-flow (CF) amplitude increases firstly and then decrease accompanied by amplitude jumps with the increase of the external reduced velocity. While two response bands are observed in the In-line (IL) direction. For the dynamics in the lock-in condition, 3-D periodic, quasi-periodic and chaotic vibrations are observed. A variety of CF and IL responses can be detected for different modes with the increase of ${\nu}$. For the cases studied in the supercritical regime, the dynamics shows a great diversity with that in the subcritical regime. Various dynamical responses, which include 3-D periodic, quasi-periodic as well as chaotic motions, are found while both CF and IL responses are coupled while ${\nu}$ is beyond the critical value. Besides, the responses corresponding to different couples of ${\mu}_1$ and ${\mu}_2$ are obviously distinct from each other.

• Structural Engineering and Mechanics
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• 제71권1호
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• pp.65-75
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• 2019

In this article, the dynamic fracture instability characteristics, including dynamic crack propagation and crack branching, in PMMA brittle solids under dynamic loading are investigated using the discrete element method (DEM) simulations. The microscopic parameters in DEM are first calibrated using the comparison with the previous experimental results not only in the field of qualitative analysis, but also in the field of quantitative analysis. The calibrating process illustrates that the selected microscopic parameters in DEM are suitable to effectively and accurately simulate dynamic fracture process in PMMA brittle solids subjected to dynamic loads. The typical dynamic fracture behaviors of solids under dynamic loading are then reproduced by DEM. Compared with the previous experimental and numerical results, the present numerical results are in good agreement with the existing ones not only in the field of qualitative analysis, but also in the field of quantitative analysis. Furthermore, effects of dynamic loading magnitude, offset distance of the initial crack and initial crack length on dynamic fracture behaviors are numerically discussed.

• 유통과학연구
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• 제17권10호
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• pp.125-134
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• 2019

Purpose - Environment-friendly behaviors are diverse and can be motivated by different factors. For example, magnitude of factors affecting recycling behavior could be different from those affecting purchasing of environmentally-friendly products. In this study, the focus is on usage satisfaction of consumers who have purchased environmentally-friendly products. Research design, data, and methodology - For this purpose, data were collected from a total of 345 users of environmentally-friendly products, consisting of 177 users of electric vehicles and 168 users of environmentally-friendly detergents. The study analyzed the relationships among consumer's innovation propensity, consumer's environmental concern, and usage satisfaction. In addition, the moderating effect of the product's innovativeness was examined. Results - The result shows that there is a relationship between consumer's innovation propensity and consumer's environmental concern. In particular, it is shown that both consumer's innovation propensity and consumer's environmental concern have positive effects on usage satisfaction. Further, there was a moderating effect of the product's innovativeness. Namely, products rated higher in innovativeness showed a greater effect of consumer's innovation propensity on usage satisfaction. The degree of the product's innovativeness also affected the directional paths of the relationships. In the electric vehicle (i.e., high product innovativeness) case, consumer's innovation propensity had a direct effect on usage satisfaction, as well as an indirect effect through consumer's environmental concern. In the environmentally-friendly detergent (i.e., low product innovativeness) case, consumer's innovation propensity only had an indirect effect on usage satisfaction, through consumer's environmental concern. Conclusions - Theoretical contributions of this study are as follows. Foremost, this is the first study that suggests an existence of a relationship between consumer's innovation propensity and consumer's environmental concern. Second, this study showed the positive effect of consumer's innovation propensity on usage satisfaction of environmentally-friendly products. Third, this study expanded the scope of previous studies by showing the interaction between consumer's innovation propensity and consumer's environmental concern. Lastly, this study showed that the effect of these variables on usage satisfaction can differ by the degree of innovativeness of the environmentally-friendly product. The results of the study will have implications for marketers and policy makers in formulating marketing activities and policies.