• Journal of Korea Game Society
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• v.11 no.4
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• pp.27-35
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• 2011

Concentration is one of the most important factor in learning ability. It is important to improve concentration for learning ability. Most digital kids have been accustomed to addictive media like games since childhood, so traditional methods of teaching and learning has been difficult to give interests for them. Therefore introducing a new teaching methods was inevitable for students with low concentration. This is an experiment to prove the hypothesis that the concentration training by certain serious game would be helpful for improving students' concentration. Not only some serious games but also meditation by music was effective to improve concentration in the experiment. Average people is hard to immerge in meditation. but some serious games involve fun factors like curiosity, challenges, competitions and rewards. Games are not more negative to young people, will be helpful to society in various forms.

• Journal of Korea Technology Innovation Society
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• v.16 no.1
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• pp.101-129
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• 2013

Technological innovation is one of critical challenges for small and medium enterprises(SMEs) as well as larger firms. This study focuses on empirical test about the role of absorptive capacity on the relationship between technological collaboration and technological innovation outcomes in the context of SMEs. To achieve the purpose, we conducted hierarchical regression analysis through 266 samples from Korean manufacturing SMEs that is defined as an enterprise less than 300 employees. As a result, more diverse exploitations for types of technological collaboration have significant and positive impact on technological innovation outcomes. Additionally, the results show that absorptive capacity based on knowledge realization capability strengthens the impact on which external sources and types of technological collaboration affect technological innovation outcomes. Based on the results, we propose that SMEs require intense management efforts in establishing capability to create new knowledges, by combining existing knowledges, because excessive exploitations for external sources of technological collaboration necessarily do not help enhance technological innovation outcomes.

• Journal of Korea Technology Innovation Society
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• v.17 no.1
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• pp.174-194
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• 2014

Collaborative technology development is now one of the most significant modes of activity in the global scientific community. However, the international cooperation of science and technology simultaneously provides opportunities and challenges, and the results of global R&D collaboration can be positive or negative as the cooperation conditions of the parties may be different according to the types or characteristics of the participants and the pattern, purpose, and motivation of cooperation. In order to minimize the risk and improve the performance of cooperation, more comprehensive as well as micro-level research is needed. This study investigates a case of successful collaborative R&D conducted by several firms, universities, and public research organizations in both Korea and the U.S.A. The aim of this study is to identify the factors of successful R&D collaboration.

• Journal of the Institute of Electronics and Information Engineers
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• v.52 no.10
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• pp.118-128
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• 2015

Compressive sensing (CS) has to face with two challenges of computational complexity reconstruction and low coding efficiency. As a solution, this paper presents a novel spatially scalable Kronecker two layer compressive sensing framework which facilitates reconstruction up to three spatial resolutions as well as much improved CS coding performance. We propose a dual-resolution sensing matrix based on the quincunx sampling grid which is applied to the base layer. This sensing matrix can provide a fast-preview of low resolution image at encoder side which is utilized for predictive coding. The enhancement layer is encoded as the residual measurement between the acquired measurement and predicted measurement data. The low resolution reconstruction is obtained from the base layer only while the high resolution image is jointly reconstructed using both two layers. Experimental results validate that the proposed scheme outperforms both conventional single layer and previous multi-resolution schemes especially at high bitrate like 2.0 bpp by 5.75dB and 5.05dB PSNR gain on average, respectively.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2019.11a
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• pp.107-108
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• 2019

In the past, regional pilot service is provided by individual pilots directly on board each ship, but it will be difficult to provide this type of service in the near future when autonomous vessels are activated. This can be seen as the need for automation and intelligence of pilot service and provision of remote control system. In this paper, we propose a method, system, and service target that can carry out the electronic pilot service through the intelligence aids to navigation for smart port operation.

• Journal of Technology Innovation
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• v.22 no.3
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• pp.193-223
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• 2014

Socio-technical systems are receiving growing attention as a core concept in the process of searching for proper solutions to sustainable growth. In this paper, we review the way for governing socio-technical transitions from a governmental perspective. Based upon the governance studies and transition research, we set social coordination and locus of transition pressures as transition contexts to differentiate transition policy governance. We propose four types of policy governance for sustainable socio-technical transitions: leading, facilitative, coordinative and persuasive. Analysis on four case based upon this typology shows different transition polices of each transition pathway in analytical aspect. It provides basic criteria for policy makers to design effective transition policies in normative aspect. Also, this paper can contribute to closing the gap between transition research and governance studies.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.40 no.1
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• pp.78-87
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• 2015

Content-Centric Networking(CCN) is a new networking paradigm to search for the routing information needed to find a data from the content name, unlike conventional IP networks. In CCN, the mobility management, one of the CCN challenges, is consists of consumer mobility and content provider mobility. Among both, in the case of the content provider mobility, it requires too much overhead and time to update routing information on the corresponding routers. In this paper, we propose Popularity-based Pushing CCN(PoPCoN) which considers the content popularity to support effective mobility of content provider in CCN. Our proposed algorithm shortens content download time for the consumer and reduces the network overhead during mobility as compared to the existing approaches.

• The Journal of Korean Society for School & Community Health Education
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• v.19 no.2
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• pp.11-29
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• 2018

목적: 산업장 안전보건교육에서 근로자의 자발적인 참여는 그 효과와 관련된 핵심적인 도전과제이다. 본 연구는 PRECEDE 모델을 중심으로 일부 제조업 사업장 근로자의 안전보건교육 참여도와 관련된 요인을 규명하는데 그 목적을 두었다. 방법: 전국 133개 제조업체의 450명(50인 미만 사업장 근로자 160명, 50인 이상 사업장 근로자 290명)의 근로자를 대상으로 자기기입식 설문조사를 실시하였다. 설문지는 일반적 특성과 함께 산업재해 및 안전보건교육과 관련된 역학적, 교육적, 생태학적 특성에 관한 문항으로 구성되었다. 결과: PRECEDE 특성 중 대규모 사업장 근로자의 사내 안전보건교육 관련 교육.생태학적 여건이 소규모 사업장 근로자보다 나은 것으로 나타났다. 근로자의 사내 안전보건교육 참여도와 관련된 PRECEDE 특성은 소규모 사업장에서는 안전보건교육 담당자에게 필요한 연수교육요구도, 안전보건교육을 위한 사회적 지지, 전체적인 사내 안전보건관리 수준이었는데, 사업장 규모 50인 이상의 사업장에서는 근로자의 연령, 사내안전보건교육 효능감, 사내교육을 위한 사회적 지지도, 사내 안전보건교육담당자의 교육역량이었다. 결론: 소규모 사업장 근로자의 사내 안전보건교육 참여도와 관련된 요인은 주로 조직 수준의 특성이었는데 반해(사내교육을 위한 환경적, 사회적 지지), 50인 이상 사업장에서 유의미한 특성은 주로 개인 수준의 특성으로(안전보건교육 효능감, 사내교육담당자의 교육역량) 사업장 규모에 따라 다른 양상을 보였다. 이를 기반으로 사업장 규모에 따라 차별화된 사내 안전보건교육 지원이 이루어져야 하겠다.

• The Journal of the Korea institute of electronic communication sciences
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• v.14 no.3
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• pp.619-626
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• 2019

The advances of semiconductor and circuitry technology dovetailed with nano processing techniques have further enhanced micro-miniaturization, sensitivity, longevity and reliability in MID(Medical Implant Device). Nevertheless, one of the remaining challenges is whether power can sufficiently and continuously be supplied for the operation of the MID. Self-powered MID that harvest biomechanical energy from human motion, respiratory and muscle movement are part of a paradigm shift. In this paper, we developed a rechargeable pacemaker through self-power generation with the triboelectric nanogenerator. We demonstrate a fully implanted pacemaker based on an implantable triboelectric nanogenerator, which act as a storage as well as active movement on a large-animal(dog) scale. The self-power pacemaker harvested from animal motion is 2.47V, which is higher than the required pacemaker device sensing voltage(1.35V).

• Journal of Science and Technology Studies
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• v.19 no.2
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• pp.85-116
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• 2019

This research examines the characteristics of the newly emerging 'transformative innovation policy' and discusses the current status and issues of the Korean social problem solving R & D policy. Transformative innovation policy is a new paradigm that aims to transform socio-technical systems to address societal challenges. In this study, we analyzed 'the policy plan for solving social problems based on science and technology'. In the "Policy Plan", efforts are being made to establish new direction of science and technological innovation activities such as emphasis on social values, network formation of innovation actors, and spreading of social impact. But in this "Policy Plan", the perspective of transformative innovation policy is weakly reflected. The Policy Plan refers to system improvement that adds new elements to existing system, but it is not discussing system transformation. In order to develop social problem solving R & D policy from the viewpoint of the transformative innovation policy, it is necessary to construct the innovation platform deliberating vision and prospect for the socio-technical transformation.