• 기술경영경제학회:학술대회논문집
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• 기술경영경제학회 1999년도 제15회 하계 학술발표회 논문집
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• pp.176-202
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• 1999

Korea has exerted her efforts to assimilate nuclear power technology, and reportedly localized 95 percent of nuclear power technology by 1995. This paper investigates the evolution of nuclear power program in Korea to exploit the development process of the nuclear power industry and key factors for the technological localization of nuclear power plant. In developing countries, an imitative catching-up process can be shown as a course for developing the absorptive capacity of foreign technology, which depends on prior knowledge base and the intensity of effort. The process of technological learning consists of five stages including preparation, implementation of foreign technology, acquisition of peripheral technology, acquisition of core technology, and improvement f foreign technology. Moreover, this paper discusses six essential factors that have influenced the successful achievement of technological localization of nuclear power plants in Korea. They include the role and strategies of the government, the leading role of utility firm, the development and cooperation of the related organizations, the development of human resources and their efforts, market conditions and the assistance of foreign donors, and social conditions. Finally, this paper discusses about implications offered by the Korean experience for other developing countries.

• 전자통신동향분석
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• 제36권4호
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• pp.61-71
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• 2021

Navigation satellite systems (GPS, GLONASS etc.) provide three main services, i.e., positioning for location based services, navigation for multi-modal transportation services, and timing for communication and critical infrastructure services. They were started as military systems but were extended to civil service. Navigation satellite navigation system began with GPS in the USA and GLONASS in Russia at nearly the same time. Indian NavIC and Chines BDS announced their FOCs in 2016 and 2020, respectively and European Galileo and Japanese QZSS are catching up others. In these days, Navigation Satellite System, Positioning, Navigation, and Timing services are part of our daily life very closely. They are required for autonomous driving car, Unmanned vehicles like UAV, UGV, and UMV, 5G/6G telecommunications, world financial system, power system, survey, agriculture, and so on. The services among navigation satellite systems are very competitive and also cooperative one another. This article describes the status of these systems and evolution in the technical and service senses, which may be helpful for planning korea positioning system(KPS).

• International journal of advanced smart convergence
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• 제2권2호
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• pp.1-6
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• 2013

Convergence in technology and media makes it possible to augment nurturing by making blended infrastructures with new digital resources available in learning environments at schools. A game-based provision of educationally-valuable content within a collective, virtual environment combined with an analysis of events in the game after it has been played (blended nurture environment) may help to better communicate human values especially where old-fashioned discussion methods fail or do not fulfill the promise of effective, educational institution-based methods of bringing up. In this paper we discuss the use of behavioural metaphors in game-based blended-nurture scenarios for computer games and pedagogical-psychological tests. Upbringing demands an active intervention in the process of children growing up and the courage to place higher expectations on ourselves and our own lifestyles. Decisions and the behaviour of the younger generation are often irrational and the resulting effects can have destructive consequences. Nowadays, games take on the role of modern storytellers. With the help of complex analogies in games, a variety of situations can be depicted in an eye-catching way and later discussed.

• 한국안전학회지
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• 제20권4호
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• pp.114-121
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• 2005

Railroad shunting movements connecting and disconnecting train sets are very susceptible to human errors since they depend on human decision-making and action procedure that are variable to situation to situation. Nevertheless, in the investigation of railroad accidents, all the accident causes related with human factors have merely been categorized as 'careless treatment' of the workers without any systematic approach of behavioral sciences or the analysis of human errors. In this research, therefore, 137 accident cases occurred during railroad shunting movements and 435 accident cases occurred during driving were analyzed with a special interest of human errors. According to results, the traditional accident investigation scheme used for last several decades did not seem to be appropriate for catching up true accident causes with respect to human errors. In addition, both signal men and locomotive drivers made many mistakes in judgement/action stage while the former mainly commit judgement tasks where as the latter mainly commit cognition tasks. Ant those tasks such as 'confirmation of signal and route', 'location check-up of connected train sets', and 'route identification for a shift of track' ranked highly for accident susceptibility.

• 천문학회보
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• 제46권1호
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• pp.55.1-55.1
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• 2021

Ram-pressure stripping (RPS) is known as a typical mechanism of quenching star formation (SF) of galaxies orbiting in clusters, but it can also boost the SF activity within a short period of time. Jellyfish galaxies, with eye-catching blue tails and knots, are such starburst galaxies undergoing strong RPS in galaxy clusters. Thus, they are very useful targets to understand their SF activity in relation to RPS. We study the SF activity of three jellyfish galaxies in massive clusters at z=0.3-0.4 (MACSJ1752-JFG2, MACSJ0916-JFG1, and A2744-F0083) with Gemini GMOS/IFU and compare our results to those of jellyfish galaxies in low-mass clusters. We obtain total star formation rates (SFRs) of up to 60 Mo/yr and SFRs in the tails of up to 15 Mo/yr, which are much higher than those of jellyfish galaxies in low-mass clusters with the median SFRs of 1.1 Mo/yr in total and 0.03 Mo/yr in tails. In addition, these SFRs are also significantly higher than the SF main sequence of galaxies at the redshifts of the three jellyfish galaxies. This implies that their SF activity is much more enhanced compared to jellyfish galaxies in low-mass clusters due to extreme RPS in massive clusters.

• 기술혁신연구
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• 제14권1호
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• pp.147-175
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• 2006

One of the biggest problems of Korean economy is polarization of firms for export and domestic demand and that of conglomerates and SME's achievement. One of the culprits lies weakness of intermediate industry such as machine tool. Since intermediate industry is important path where export performance affects domestic demand and whose actor usually is SMEs with high spill over effect in labor market. Especially, intermediate industry Is vulnerable because of industrial policy biased In backward linkage effect. However if a country fails to develop intermediate industry above some critical point, that country would fall in low-tech equilibrium without growth. In case of benign circle where final goods industry growth leads growth of intermediate industry and again it leads that of final goods industry, it can reach high-tech equilibrium. By contrast, in opposite case where in industrialization latecomer fails to link industries likewise above some critical point that country would fall in low-tech equilibrium without growth. Moreover, for several reasons, machine tool firms of Korea have difficulty in catching up technology above critical point. Firstly. Conglomerate demander neglects their product. Secondly, even after success of development overcoming difficulties they fail to get market share for response of dumping of foreign competitors. And the last one is patent litigation of foreign competitors that incapacitate the technology development. For these, Korean machine tool firms fell in 'middle-income country trap' itself, since they stuck in some extent when they technologically catch up. Consequently, for latecomer country in machine tool industry to leapfrog meaningfully policy support is necessary, Weak intermediate industry does not Induce domestic firms and remained fragile. Therefore, localization, policy should reflect condition of technological catch up more than before, in order to be effective and fruitful. There should be turning point over relationship between conglomerates, major demander of machine tool and SME's, for only with active purchasing of conglomerate Korean machine industry can grow.

• 기술경영경제학회:학술대회논문집
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• 기술경영경제학회 2004년도 제24회 동계학술대회 논문집
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• pp.288-315
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• 2004

This paper has examined the leapfrogging thesis with the case of catch-up in digital TV by the Korean firms. Despite the disadvantages implied by the technological regime of digital TV and the risks facing early entrants in trajectory choice and initial market formation, the Korean firms had achieved a 'path-creating catch-up' in the sense they chose a different path from the Japanese forerunning firms. As they have been closely watching the technological trends and the standard setting process, there was less risk of choosing the right or wrong technological trajectory. Also, despite the lack of sufficient capability and core knowledge base, the Korean firms had some complementary asset, such as the experience of producing analogue TV, and were able to develop the prototype digital TV and the ASIC chips, given the accesses to the foreign knowledge via overseas R&D posts and acquisition of a foreign company. To secure the initial market size, the Korean targeted the US market from the beginning, and their sources for competitive advantages were the speedy setting up the production system for mass production of products at the initial stage. The initial failure of the Japanese firms and the success of the Korean firms do suggest that the period of paradigm shift, like this toward digital technology, can serve as a window of opportunity for late-comers while penalizing the forerunner.

• 한국수산과학회지
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• 제21권3호
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• pp.184-192
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• 1988

제주도 연안에서 분기초망어선의 집어등에 의해 집어된 멸치의 집어상태를 1987년5월~8월간에 매월 중순을 기준하여 223해구와 233해구에서 분기초망어선에 어군탐지기(SR-385형)를 설치하여 수면상 2m 높이에 선수 전방 1m에 수상집어등 1Kw, 백열등 1개를 교류전압 100V로 수면에 조사했을 때의 멸치군의 유영수심, 집어등의 수중조도, 어획량의 변동, 그에 따른 집어효과를 조사한 결과는 다음과 같다. 1. 분기초망에 의한 멸치의 어획량은 월령의 상순 (1-10일)과 하순 (20-30일)에 전 어획량(259 M/T)의 $90\%$가 어획되는 반면 중순 (11-20일)에는 전어획량의 $10\%$정도로 낮았다. 2. 수상집어등에 의한 멸치군의 집어수심은 2~5m였고, 이 때의 수중조도는 223해구에서 20~42 Lux, 233해구에서는 24~48 Lux이다. 3. 수면상 2m 높이인 멸치 분기초망어선의 선수에 수상집어등 1Kw 백열등 1개를 교류전압 100V로 집어한 결과 수중조도 1.9~7 Lux인 수심 10~15m에서 유영하던 멸치군이 수중조도 20~42 Lux인 수심 2~5m까지 부상하므로서 분기초망어선의 집어등에 의해 집어되는 멸치군의 수중조도는 집어하기 이전의 수중조도보다 7~12배 정도 더 강한 수중조도 범위에 집어되었다. 4. 현재 제주도 연안에서 조업하고 있는 멸치분기초망의 어획수심은 수심 2~3m 까지이고, 최종 어획단계에서 수상집어등을 교류전압 100V에서 80V로 강압하므로서 집어등을 2m 높이에서 4m 높이로 이동시키지 않더라도 같은 집어효과를 얻을 수 있다.

• 마케팅과학연구
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• 제15권3호
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• pp.49-65
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• 2005

현대인들은 의식적 혹은 무의식적으로 많은 광고에 노출되고 있다. 이에 기업에서는 매력적인 모델을 광고에 사용함으로써 자사의 광고에 소비자들의 주목도를 높이려는 것이 일반적인 경향이다. 의류의 경우, 소비자는 주로 잡지, 신문, 카탈로그, TV 광고 등의 마케터 주도적 정보원을 통해 정보를 수집하는 것으로 나타나, 마케터가 제시하는 광고가 의류 소비자의 구매행동에 영향을 미친다는 것을 알 수 있다. 따라서 본 연구에서는 의류광고에 사용되는 모델이 소비자에 의해 의류광고에 적합하다고 판단되어지는 경로를 이론적으로 도출하고 이를 실증적으로 검증하였다. 그 결과, 모델의 매력도 차원에는 '관능성'과 '귀염성', 두 차원이 존재하며, 이 차원은 각각 다른 경로로 의류광고 적합도를 향상시키는 것으로 나타났다. 관능성은 '모델답다', '전형적인 모델이다'로 여겨지는 '모델 전형성'을 통해 의류광고 적합도를 향상시키며, 귀염성은 모델 전형성을 거치지 않고 의류광고 적합도에 직접적으로 영향을 미치는 것으로 나타났다. 이러한 결과는 기업이 의류모델을 선정함에 있어 유의한 시사점을 제공한다.

• 한국인터넷방송통신학회논문지
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• 제15권6호
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• pp.43-49
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• 2015

본 논문에서는 운전 중 스마트 폰 사용에 따른 위험도를 사전에 차단할 수 있는 스마트 폰 안전 애플리케이션을 설계 및 구현한다. 이 안전 앱은 운전 중 휴대전화 사용시 운전자의 집중력을 쉽고 자연스럽게 높여 안전 운전을 하는데 도움을 주기 위한 목적을 가지고 있다. 그러나 갑작스러운 상황이 발생해서 운전자가 운전을 포기하고 식사를 위해 이동한다든지 또는 관광지로 이동 할 경우에는 운전 중이라는 오류 텍스트를 계속 보낼 것이다. 본 논문에서는 이러한 문제점을 해결하기 위해서 퍼지규칙을 이용한 교통안전 모의실험을 수행하였다. 모의실험 결과 정지 상태 및 차량 이동 상태를 정확하게 구분할 수 있으므로 스마트폰 안전 애플리케이션을 사용 했을 때에 갑작스러운 상황으로 운전을 포기하고 식사 및 휴식을 취하는 경우에 발생하는 자동 전송 메시지 오류를 크게 줄일 수 있을 것으로 예측되었다.