• Proceedings of the Korea Technology Innovation Society Conference
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• 2004.11a
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• pp.471-484
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• 2004

• Journal of the Korean Society of Marine Environment & Safety
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• v.21 no.6
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• pp.679-688
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• 2015

Stability and security of energy resources are one of the most important factors for a national-development. In this research, we analyzed the Republic of Korea's policy making system on energy security and identified the problems from an innovation system perspective. In terms of the actors, they had limitations that ROK's navy do not have enough strategic plan for energy transportation. The links between innovation actors except defense area were relatively good, but links between the military area(navy) and other innovation actors had weak linkage. The infrastructure did't have enough consideration for military force development. For the institution; the role of the military area on energy security was not completely established. Therefore, participation of the defense area(navy) is required to be stated institutionally.

• Journal of Technology Innovation
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• v.24 no.4
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• pp.221-248
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• 2016

In this study, we conducted an in-depth literature review of the innovation characteristics of nuclear technology. We understood that the main issue may be a transition of fourth generation nuclear energy technology. We also analyzed a present status of Korean policy on nuclear energy technology and identified some implications for a successful settlement of the fourth generation nuclear energy technology. This study could provide some policy implications for maintaining the sustainable competitiveness of the fourth generation nuclear energy technology in Korea. According to our study, the factors that influence on a transition of nuclear energy technology are a policy-induced market for technical application and demonstration, stable and long-term resource allocation, constant interaction among stakeholders of innovation, accumulation of skill and know-how for an entire system. In addition, we conducted a case analysis on policy for Korean fourth generation nuclear energy technology. According to this case study, it would be necessary for Korea to pursue systematic training of human resources, active response to a social acceptance and reaction, establishment of specific plan for technical demonstration, long-term policy suggestion, and active promotion of constant interaction between stakeholders.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2001.05a
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• pp.531-544
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• 2001

The use and development of nuclear energy has a long history more than 5o years and is facing a rapid changing environment in technological innovations in order to meet the requirements of energy supply, environmental conservation and social and political demands. The innovation of nuclear technologies are also necessary continuously in order to contribute for the progress of national economy and industry development, improvement of public health, progress of nation science and technology and furthermore is very important for the survival of nuclear industry and strengthening of competition of nuclear technologies. Major directions of the innovation of nuclear technologies would be the enhance ment of safety and economy of the use of nuclear energy, securing od nuclear proliferation-resistance, safe management of radioactive wastes, technology development for newly emerging markets and improvement of public health.

• Nuclear Engineering and Technology
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• v.55 no.1
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• pp.339-352
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• 2023

Prediction of the time-related traits of pebble flow inside pebble-bed HTGRs is of great significance for reactor operation and design. In this work, an image-driven approach with the aid of a convolutional neural network (CNN) is proposed to predict the remaining time of initially loaded pebbles and the time interval of paired flow images of the pebble bed. Two types of strategies are put forward: one is adding FC layers to the classic classification CNN models and using regression training, and the other is CNN-based deep expectation (DEX) by regarding the time prediction as a deep classification task followed by softmax expected value refinements. The current dataset is obtained from the discrete element method (DEM) simulations. Results show that the CNN-aided models generally make satisfactory predictions on the remaining time with the determination coefficient larger than 0.99. Among these models, the VGG19+DEX performs the best and its CumScore (proportion of test set with prediction error within 0.5s) can reach 0.939. Besides, the remaining time of additional test sets and new cases can also be well predicted, indicating good generalization ability of the model. In the task of predicting the time interval of image pairs, the VGG19+DEX model has also generated satisfactory results. Particularly, the trained model, with promising generalization ability, has demonstrated great potential in accurately and instantaneously predicting the traits of interest, without the need for additional computational intensive DEM simulations. Nevertheless, the issues of data diversity and model optimization need to be improved to achieve the full potential of the CNN-aided prediction tool.

• Journal of Science and Technology Studies
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• v.19 no.3
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• pp.291-333
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• 2019

The regional innovation policies so far have been separated from the social problems facing the local communities. The regional innovation policies, regarding the region as the location of the business, have focused on the invigoration of business innovation activities. However, as the recent emergence of the new paradigm of innovation policy aiming the sustainability, 'transformative innovation policy,' has led to a search for regional innovation policies that begin with solving the local social problems. This research paper deals with regional innovation theory that starts from searching for solutions and system transformation for social problems such as climate crisis and energy problems. The objective is to present a new framework called 'transformative regional innovation policy' and to improve its content through case studies by combining the results of the transformative innovation policy and the regional innovation policy studies. In particular, the contribution of this paper is to analyze and discuss the concept of the transition platform, which aims to solve the local social problems, through the case studies of Gussing, Austria and Esbjerg, Denmark. Lastly, it discusses the derived implications of the cases applied in Korean society.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2001.05a
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• pp.509-530
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• 2001

For the greenhouse 9as emissions' reduction of fossil fuel, the energy policy on the promotion of alternative energy should be implemented. Accordingly, national policies on the development and promotion of alternative energy were made, and related laws and regulations are being made, and comprehensive plans should be followed. The policies and strategies for promoting the renewable energy have been insufficient in comparison with those of the developed countries. This paper suggests the spread extension plan of renewable generation through generation development and priority purchase.

• Nuclear Engineering and Technology
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• v.54 no.4
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• pp.1301-1311
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• 2022

Global climate change brings environmental quality sensitivity, especially in developed countries. Developed countries use non-renewable energy sources intensively both in their own countries and in other countries, they make productions that cause an enormous rate of increase in CO₂ emissions and unsustainable environmental costs. This has increased the interest in environmentally friendly alternative energy sources. The aim of this study is to investigate the impact of nuclear energy consumption and technological innovation on environmental quality in G7 countries using annual data over the period 1970-2015. The Panel Threshold Regression Model was used for the analysis. Empirical findings have indicated that the relationship between nuclear energy consumption and carbon emissions differs according to innovation for nuclear power plants. It was also concluded that nuclear energy consumption reduces carbon emissions more after a certain level of innovation. This result shows that the increase in innovative technologies for nuclear power plants not only increases energy efficiency but also contributes positively to environmental quality.

• Transactions of the Korean hydrogen and new energy society
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• v.35 no.3
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• pp.257-268
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• 2024

Hydrogen serves as a clean energy source with potential applications across various sectors including electricity, transportation, and industry. In terms of policy and economic support, governmental policy backing and economic incentives are poised to accelerate the commercialization and expansion of hydrogen energy technologies. Hydrogen energy is set to become a cornerstone for a sustainable future energy system. Additionally, when constructing hydrogen production plants, economic aspects must be considered. The essence of hydrogen production plants lies in the electrolysis of water, a process that separates water into hydrogen and oxygen using electrical energy. The initial capital expenditure (CAPEX) for hydrogen production plants can vary depending on the electrolysis technology employed. This study aims to provide a comprehensive understanding of hydrogen production technologies as well as to propose a method for predicting the CAPEX of hydrogen production plants.

• Journal of Energy Engineering
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• v.19 no.1
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• pp.1-7
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• 2010

This experimental study suggests some alternatives for stable growth and environmental conservation, responding to the unstability of global energy market and the regulations to greenhouse gas reduction. It introduces the energy-chain approach optimizing the whole processes extending energy production, transfer, and exploitation. And the alternatives are covered from low-carbon & environment-friendly energy-specific innovation system, transformation of major industries to low-carbon & environment-friendly industries, upgrading of energy efficiency, procurement of energy sources to policy cluster.