• Journal of the Korea Institute of Information and Communication Engineering
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• v.21 no.7
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• pp.1455-1463
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• 2017

Global economy has recorded low growth, low consumption, high unemployment rate, high risk, short boom and long recession. As a result, maritime economy declines and the reduction of maintenance costs is inevitable. Thus, Studies such as green ship, eco ship, and smart ship are being actively conducted to save energy of ship. Power management system that use batteries in green ship is an important research area. In this paper, we analyze the heavy load control of a power management system of a general ship using only a generator, and study a heavy load control algorithm for a battery connected power management system. To study this, a structure of battery connected power management system is proposed and a battery connected power simulator was constructed based on the proposed system. Through the simulator, the operation of the battery according to the heavy load control is defined and confirmed in the battery connected power management system.

• Asian Journal of Innovation and Policy
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• v.11 no.1
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• pp.1-29
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• 2022

Climate action is at the top of the agenda in the international community, as demonstrated at the 2021 G7 Summit and the 2021 UN Climate Summit. Major developed countries are scrambling to make a transition to a green economy and create a new growth momentum. Following the Paris Climate Agreement in 2016, they focus on "carbon neutrality" as an effective means of tackling climate change. The Republic of Korea, a high-carbon economy, submitted its second Nationally Determined Contribution and announced carbon neutrality as a top policy priority. Accordingly, the country increases government budget in research and development (R&D) and science and technology (S&T) policies. Against this backdrop, this study analyzed policies on carbon-neutral S&T and R&D in major advanced countries. The analysis was made by identifying globally pending issues in carbon-neutral policies and climate technology. In addition, focus group interviews were conducted six times with 10 experts to come up with three R&D strategies and action plans for government-funded research institutes to achieve carbon neutrality. To be specific, the following measures were suggested. First, creative and innovative R&D programs are required to solve the problem of carbon emissions. Second, it is necessary to establish carbon neutrality policies and infrastructure which are sustainable to run and manage. Third, it is crucial to promote cooperation in climate technology based on excellence. In conclusion, the strategies proposed in this study are expected to provide directions and implications for policymakers, researchers, and scholars in science and technology to develop effective strategies to achieve national carbon neutrality.

• Journal of the Korean Institute of Landscape Architecture
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• v.30 no.6
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• pp.47-56
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• 2003

The purpose of this study is to clarify the components for the improvement of outdoor spaces in farmyards and to suggest guidelines for the planning of these spaces. The objects of this study were the general farmyards located around farmhouses which had government support for the construction of on-site gardens. The results were as follows: 1. Although over 50% of the general farmyards did not have gardens, most gardens of farmyards (90% and over) featured trees and/or flowers. This demonstrated that the residents of the farmyards thought positively about green spaces. 2. With the establishment of a garden, the self-image of the household improved along with the physical environment. Thus, the construction of the garden brought about psychologically and physically positive results. 3. Regarding the degree of satisfaction with green space and shade, the rate of farmyards with gardens was higher than those without. With more government support for developing such green spaces, satisfaction with them could increase. The same result was obtained regarding the degree of satisfaction towards visual harmony with nearby farmyards, indicating that neighboring farm households want to have positive relationships with one another. 4. The frequency of use of living space increased through the construction of gardens in farmyards, in spite of decreased working space. %is aspect could be used as data in the planning of gardens in farmyards. 5. The perceived necessity of gardens in the general farmyards and desire to construct new gardens rose. This preference was high in gardens with abundant greenery and a lot of rest facilities. This study suggests those reasons result from a poor farm economy. With government support, general farmyards without gardens could construct gardens. And we might infer that the residents' desire to construct a garden in general famyards had been influenced by a neighbor with a garden.

• Journal of the Speleological Society of Korea
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• no.95
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• pp.15-21
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• 2009

Global village warming and carbon dioxide CO2 gas, and the human efforts for their healing and necessary alternative technology would be much more difficult things than that of making necessary funds and efforts to lay to sleep angry nature on the earth. The limited natural resources of fossil fuel would be dried up in several decades, and the intensity of diplomatic negotiations for natural resource guarantee among countries may be showed looking alike an war. The drain of fossil fuel called a new word of alternative policy like an environment-friendly green-growth, and the solar-cell and lighting technology for the solar energy applications were developed still more repeatedly day by day from oil lantern to LED high-tech illumination in great economy. Therefore, it was studied that the low-carbon green-growth illumination technology in cave applications with SOLAR-LED system which was produced and unified in connection with solar-cell and LED from the semiconductor production technology, and it was also clarified in necessary with useful cave lighting in heatless and with no photosynthesis of plant production in underground space.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.12 no.2
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• pp.27-33
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• 2013

In this study we analyzed the on-road driving performance of two parallel-type diesel-hybrid buses which have been driven in Daegu metropolitan area. A real-time on-board data logger was facilitated to measure the vehicle information such as vehicle speed, idle stop, state of charge of battery, and engine operating conditions. These diesel-hybrid buses ran as a commuter at Daegu Exco area and Dalsung industrial complex. The driving pattern in Exco area comprised more frequent idle stop and relatively lower speed than at Dalsung area, where comprised no idle stop. Due to those different driving patterns, the fuel economy at Dalsung showed $3.7\;km/{\ell}$, which is about 8% higher than that of Exco. The main causes of this come from the higher portion of regenerative braking and higher speed which moves to the operating points of diesel engine with a lower fuel consumption.

• Advances in environmental research
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• v.10 no.1
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• pp.17-41
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• 2021

Kazakhstan's cities experience high concentrations levels of atmospheric particulate matter (PM), which is well-known for its highly detrimental effect on the human health. A further increase in PM concentrations in the future could lead to a higher air pollution-caused morbidity and mortality, causing an increase in healthcare expenditures by the government. However, to prevent elevated PM concentrations in the future, more stringent standards could be implemented by lowering current maximum allowable PM concentration limit to Organization for Economic Co-operation and Development (OECD)'s limits. Therefore, this study aims to find out what impact this change in environmental policy towards PM has on state economy in the long run. Future PM10 and PM2.5 concentrations were estimated using multiple linear regression based on gross regional product (GRP) and population growth parameters. Dose-response model was based on World Health Organization's approach for the identification of mortality, morbidity and healthcare costs due to air pollution. Analysis of concentrations revealed that only 6 out of 21 cities of Kazakhstan did not exceed the EU limit on PM10 concentration. Changing environmental standards resulted in the 71.7% decrease in mortality and 77% decrease in morbidity cases in all cities compared to the case without changes in environmental policy. Moreover, the cost of morbidity and mortality associated with air pollution decreased by $669 million in 2030 and $2183 million in 2050 in case of implementation of OECD standards. Thus, changing environmental regulations will be beneficial in terms of both of mortality reduction and state budget saving.

• Korean Journal of Organic Agriculture
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• v.13 no.3
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• pp.261-279
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• 2005

This study tried to examine the possibility of rural tourism policy in Nam-Hae county and to provide a strategy for development of the local economy. It was carried out on a basis that the rural tourism businesses are operated by the local government(Nam-Hae county office). In doing so, this study investigated social, cultural and geographical characteristics and the regional tourism resources of Nam-Hae area. Based on the survey, it classified the types of rural tourism and suggested provisional tourist maps by the type. This study assumed that the local government has a full responsibility for the rural tourism businesses from the initial stage of setting up development plans to the operation of the businesses. Rural tourism theme courses of each small-position area provided tourists with tour courses and time schedules depended on geographical features of the areas. It produced a map that actually makes possible the theme rural tourism. The conclusion of this study is that the quality of living in Nam-Hae county would be improved with the rural tourism businesses which lead to increase in farm household income and to develop local settlement areas.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.53
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• pp.155-180
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• 2012

Korea has the plans to improve nation and corporate global competitiveness through reducing the logistics costs. Ministry of Knowledge Economy, as the government department of in charge of the plan, establish industrial logistics policies in 2002 and 2007 and it's about time to set up the third industrial logistics policy in 2012. There are new trends for the logistics environment in terms of environment-friendly logistics, logistics securities, win-win collaboration etc. This study propose some harmonious plans between logistic productivity and the new trends in the field of logistics. For the purpose of that, we have evaluated the second industrial logistics policy. We propose the vision and objectives of the new industrial logistics policy. The vision is entering the line of industrial logistics developed nations through the sustainable logistics innovation, and the objects are smart & green logistics, win-win collaboration, lead the new logistics trends etc. We also propose the set the system and rules to push promote the new plan. In addition, industrial logistics is the new terminology setting out use by Ministry of Knowledge Economy.

• Environmental and Resource Economics Review
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• v.25 no.2
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• pp.179-197
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• 2016

The development of overseas resource is a driving force to secure the energy security in Korea with low sufficiency rate of energy. This paper analyzes the effect of overseas oil resource development on the economy by presenting a real business cycle model with consolidated energy price index. A linear-quadratic dynamic programming is adopted to raise computational transparency and efficiency. The analysis shows that the overseas oil resource development project during 2010 and 2012 decreases the energy price by 1.2% per annum which effect is equivalent to the positive 0.47% to the GDP. The implication calls for steady and robust support for overseas resource development projects to enhance energy resilience.

• Journal of the Korean Institute of Rural Architecture
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• v.22 no.2
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• pp.35-42
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• 2020

The new urbanization is one of prestige growth engines to lead the next generation of China economy, it promotes new sustainable urban development models guided by various planning polices to improve urban livability and sustainability in accommodation with economy, social, and environmental consideration. The expanding urban periphery to rural area should leverages existing assets, infrastructure, local context and plans as a showcase of environmental and economic balance in a responsibly high-density, green community designed to human development and ecological settlement. The Beijing Chaoyang District and Tianjin Binhai area are a strategic advancement in the policy of building one of the most powerful economic regions, the Bohai Rim. Recently released 'Jingjinji development plan' supports various urbanization policies and encourages sustainable developments including 2 significant city center projects which are under way in global attention. The study compared on the characters of development policies and the cutting-edge smart design strategies by which they are applied, the master plan of the Beijing Chaoyang District expansion plan and Tianjin Yujiapu CBD project embrace innovative sustainable technologies.