• Journal of Power Electronics
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• 제19권3호
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• pp.827-834
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• 2019

Wireless power transfer via coupled magnetic resonances has been a hot research topic in recent years. In addition, the number of related devices has also been increasing. However, reverse signals transfer is often required in addition to wireless power transfer. The structure of the circuit for a wireless power transfer system via coupled magnetic resonances is analyzed. The advantages and disadvantages of both parallel compensation and series compensation are listed. Then the compensation characteristics of the inductor, capacitor and resistor were studied and an appropriate compensation method was selected. The reverse signals can be transferred by controlling the compensation of the resistor. In addition, it can be demodulated by extracting the change of the primary current. A 3.3 MHz resonant frequency with a 100 kHz reverse signals transfer system platform was established in the laboratory. Experimental results demonstrate that wireless power and reverse signals can be transferred synchronously.

• Nuclear Engineering and Technology
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• 제49권8호
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• pp.1617-1628
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• 2017

In the passive residual heat removal system of a molten salt reactor, one of the residual heat removal methods is to use the thimble-type heat transfer elements of the drain salt tank to remove the residual heat of fuel salts. An experimental loop is designed and built with a single heat transfer element to analyze the heat transfer and flow characteristics. In this research, the influence of the size of a three-layer thimble-type heat transfer element on the heat transfer rate is analyzed. Two methods are used to obtain the heat transfer rate, and a difference of results between methods is approximately 5%. The gas gap width between the thimble and the bayonet has a large effect on the heat transfer rate. As the gas gap width increases from 1.0 mm to 11.0 mm, the heat transfer rate decreases from 5.2 kW to 1.6 kW. In addition, a natural circulation startup process is described in this paper. Finally, flashing natural circulation instability has been observed in this thimble-type heat transfer element.

• 대한산업공학회지
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• 제34권3호
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• pp.355-361
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• 2008

Technology developers in academia tend to be short of professional knowledge and recognition of technology transfer strategies. It is even severe in Korea where the concept of employee's invention has just started to effect in academia. Wasteful contract negotiation disputes cannot only be painful but also can hamper better invention. The main purpose of this paper is to design guidelines for an optimal contract strategy for technology transfer from the perspective of the technology developer in academia, the intermediary and the receiver. Applying conjoint analysis, this study shows not only the relative importance of the attributes related to the technology transfer contract but also the most important conditions of the contract. It is expected that this study may improve the efficiency of technology transfer activities in academia in Korea.

• 한국기술혁신학회:학술대회논문집
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• 한국기술혁신학회 2017년도 춘계학술대회 논문집
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• pp.195-218
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• 2017

The paper tests the above socio-cognitive model with four empirical case studies of leading Korean science and technology research and technology transfer organizations. The case studies demonstrate clear differences in individuals' frames about the technology transfer process and arising conflicts. As a result, technology transfer process is not fully controllable and is highly contextual. We argue, whereas public policy in countries approaching technology frontier provides essential support for defining and exploiting best practices (routines/pathways) for technology transfer at organizational level, they have not matured enough to support the timely identification and resolution of conflicts between individual actors, hence the inefficiencies. Therefore, among others, public policy for technology transfer could consider allowing an inclusive approach to recognition of best practices for technology transfer and innovation processes, increased social interactions between technology transfer actors, and their training on resolution of individual level cognitive conflicts.

• International Journal of Railway
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• 제2권2호
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• pp.60-69
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• 2009

In recent years, technology developments in different countries, especially in newly industrialized countries, are extremely indebted to appropriate technology transfer by these countries. Nevertheless the technology transfer process in the present situation is complex, and its success is related to the coordination rate with the political, economic, social, and environmental objectives of countries. Today debates related to the transfer of the technical know how accompanied by equipment hardware has found remarkable importance such that countries seek increasing comprehensive capabilities in the field of transferred technology for which Preventive Maintenance (PM) is one of the aspects. This research with the purpose to determine the technological capability level and to study the role of PM in the effective & appropriate technology transfer in subway industry is carried out for presenting a suitable model for the technology transfer in this industry with an attitude towards the effects of principal PM factors. For this purpose, after the study of different and relevant models existing in the field of suitable methods for technology transfer, some equipment PM theories and models were selected as the base for the compilation of the questionnaire. With the help of questionnaire, main PM factors that are effective in the field of technology transfer were extracted, and finally, their effects on technology transfer were analyzed, identified and a comprehensive model suggested in this connection.

• 벤처창업연구
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• 제11권1호
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• pp.121-130
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• 2016

본 연구에서는 상생형 현장체험 창업교육의 일환인 새가게운동이 대학생 창업의도와 현장체험 대상기업인 소상공인 경영개선에 미치는 영향을 분석하였다. 본 연구의 주요 결과는 다음과 같다. 첫째, 새가게운동 체험이 기업가정신, 창업태도, 창업의도를 향상시키는 것으로 나타났다. 둘째, 기업가정신은 창업태도에, 창업태도는 창업의도에 정(+)의 영향을 미치는 것으로 나타났다. 셋째, 소상공인들의 창업가 역량(경영역량)과 기업가정신이 향상되고 이들의 향상은 재무적, 비재무적 성과에 유의한 정(+)의 영향을 미치는 것으로 나타났다. 본 연구의 시사점은 새가게운동과 같은 새로운 상생형 체험 프로그램이 참여한 대학생과 업주에게 양방향적으로 긍적적인 영향을 주고 있는 것이다. 따라서 창업교육에 있어서 세대별로 단절되는 것보다는 새가게운동과 같이 청장년이 같이 노력해서 그 결과가 상생적인 양방형 현장체험학습의 강화가 필요하다고 볼 수 있다.

• 유통과학연구
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• 제12권1호
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• pp.35-46
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• 2014

Purpose - This Study aims to promote technology transfer commercialization and ultimately make contribution towards enhancement of the success rate of commercialization of technology transfer at national level by deducing the factors that impart influence on the negotiation at the time of technology trading between the seller and buyer of technology of public research institutions subjected to transfer and sales. Research design, data and methodology - This Study deduced 5 research hypotheses through preceding researches related to technology transfer commercialization related technology marketing for technology trading negotiation. This Study was conducted by verifying the hypotheses through multiple regression analysis. Results - As the result of the Study, the research hypothesis H1, 'Promotion of commercialization of technology transfer trading will be affected in accordance with the innate characteristic factors of the technology', and H5, 'Promotion of commercialization of technology transfer trading will be affected in accordance with the mutual factors of the parties of the technology trading', among the 5 research hypotheses were chosen. Conclusions - It was found that the technology seller must be able to demonstrate technological value of the technology being sold in order to successfully conclude technology transfer trading negotiation and mutual understanding and harmonious communication between the parties.

• 기술혁신연구
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• 제13권2호
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• pp.157-178
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• 2005

During the transformation of the agro-technology extension in rural China, many new Policy experiments are emerging to rebuild the lost linkages and to improve technology transfer with the system and among systems. Applying the Triple Helix Model of academy-agriculture-government relations, this paper explores a new pattern of technology transfer with the case of BaojiCity. The authors interpret the mechanism of 'Courtyards for Agro-experts', as well as the comparison between different types of courtyards. This article concludes that the Triple Helix in the agro-sector improves technology transfer and accelerates knowledge-based regional development. In the interest of farmers there should also be concern over reducing inequity the reform.

• 벤처창업연구
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• 제13권6호
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• pp.191-198
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• 2018

기술이전은 기술공급사와 기술도입사간의 위험과 이익을 공유함에 따라 다양한 동기를 가지고 기술이전을 결정하게 된다. 기술공급사는 기술도입사가 제공하는 경제적 요인, 위험요인, 정부의 정책 및 제도와 해당 기술이전기업들의 경영전략 등 여러 결정요인을 복합적으로 고려하여 기술이전 결정을 하게 된다. 본 연구에서는 화학산업에서 기술이전에 영향을 미치는 요인을 파악하고 기술이전 의도에 미치는 영향력을 분석하였다. 본 연구결과 기술이전 영향요인은 경제적 혜택 요인, 기술적 요인, 위험요인, 사회문화적 요인으로 나타났다. 기술도입사와 기술공급사의 기술이전 영향요인의 유의미한 차이는 경제적 혜택 요인은 기술공급사보다 기술도입사가 중요하게 고려하는 것으로 나타났으며, 기술적 요인은 기술공급사가 기술도입사보다 중요하게 고려하는 것으로 나타났다. 기술이전 의지는 기술도입사가 기술공급사보다 높게 나타났다.

• World Technopolis Review
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• 제4권2호
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• pp.62-78
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• 2015

The importance of university technology transfer has widely been brought to the center of attention over the last decades. Research and practice thereby often concentrate on issues related to patenting and licensing or entrepreneurship but abstract away from relationship- and network-focused initiatives. In this paper, we argue that efforts to systematically develop close, long-term collaboration partnerships - although complex and resource intensive - are likely to be more beneficial for both universities and industry in the long run. Drawing on data derived from interviews with technology transfer executives of 22 leading European and U.S. universities, we analyze and discuss well-established practices of network and relationship management and their possible impact on technology transfer success. Our findings indicate that dedicated relationship management approaches can yield a sustainable competitive advantage for universities. We thereby shift the focus away from transaction-orientation towards more forward-looking relationship-centric approaches and discuss their institutionalization in great detail.