• Journal of the Korea Institute of Building Construction
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• v.16 no.1
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• pp.25-34
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• 2016

From 1990's, a study on the development of exothermic concrete, a concrete which electro-conductive material is mixed, has been proceeded. However, due to the difficulty of exothermic reproducibility of concrete specimen, the study has been unable to continuously carried out. Accordingly, this study was focused on developing an exothermic concrete for the purpose of snow-melting material. Cement paste and mortar specimens mixed with graphite, conductive metal powder and chemical admixture were made. The evaluation of exothermic performance and reproducibility was conducted under $-2^{\circ}C$ of low temperature. In addition, micro-chemical analysis was carried out to investigate a cause of exothermic reproducibility. As a test result, the specimen mixed with graphite and superplasticizer with air entrained showed the best exothermic performance and reproducibility. Through micro-chemical analysis, it is judged that polymer or methacrylic acid (MAA), the contents inside the superplasticizer with air entrained, gave exothermic reproducibility by generating the electrochemical reaction with graphite.

• Korean Journal of Construction Engineering and Management
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• v.19 no.2
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• pp.73-82
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• 2018

The Environment - friendly construction industry has developed rapidly with sustained development of related technologies and government assistance. However, there is lack of consideration for nurturing professional manpower for Environment - friendly construction industry. In order to support rapid growth, it is necessary to analyze the competency of professional manpower to prepare for successful Environment - friendly construction industry. Thus, this research derive competency variables through the literature review and experts' interview was applied toward an validating of the key variables. Further, a survey of competency factors for sustainable construction was performed and analyzed through exploratory factor analysis. The result showed that four key competency factors were derived, and two factors stood out : Understanding of Sustainability and Affective Competency. The meaning of this research is to investigate relationship between the characteristics of Environment - friendly construction and importance of competency factor.

• KIEAE Journal
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• v.10 no.2
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• pp.39-48
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• 2010

PAJU Book City Plan was designed to integrate two concepts of "Publishing Productive City" and "Ecological City" with the goal of "bringing of human being and nature together". This research on the post occupancy evaluation on PAJU Book City has two aims; One is to define how people, mainly working there rather than living, recognize the city and the other is to identify the problems resulted from the first phase of planning process and to suggest feasible solutions at the same time. It would be desirable that the outcome of this research should be used as data sources to improve the second phase of the plan. The evaluation criteria were created by the pre-survey on the basis of previous researches and "Pa Ju publishing city architectural design guide book (1999)". With those criteria, on-site questionnaire was conducted among people who work in PAJU Book City and stratified sampling was used for the proper sampling. The result is as follows; the visual-aesthetic criteria had positive response, which also closely related to a city satisfaction. Considering this result, construction type, circumferential environment of the building and a place of building form were found appropriate. The evaluation on the physical-ecological criteria was relatively low. Respondents were unsatisfied with green space and required better ecological waterway and more roadside tree. As green space was given a lot of weight in satisfaction survey, more green urban areas should be planned in the next phase. The evaluation on the social-behavior criteria got the lowest score. Particularly, the accessibility and convenient facilities were remarkably low. Nonetheless, the self-conceit about PAJU Book City was highly evaluated and played a crucial role in a city satisfaction. In order to achieve the goal, physical beauty, characteristics as a publication city as well as an ecologically sustainable city should be main agenda in the second phase of Paju Book City Plan. Consequently, it is important to strike a balance between the external environment and image media in order that PAJU Book City should be re-born as a culture city.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2013.10a
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• pp.163-164
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• 2013

Two-Way CAR-FERRY land and islands, islands to islands, the connection between sustainable marine transportation in conjunction with the increasing demand of tourists, according to the associated coastal maritime tourism and passenger transport has a role. Subsequent Two-Way CAR-FERRY and the increased ease of use due to berthing maritime accidents can be reduced. Two-Way CAR-FERRY as the draft (even) in the state on both sides of the propeller, because the propeller due to the small diameter, low speed forward flight by the reaction at the shaft and propeller damage can occur. Engine output accordingly, linear and torsional vibration reducer by, elastic coupling selection transverse vibration and shaft alignment (Shaft alignment) considering the shaft design (bearing size, width, thickness) and the primary drive shaft support portion of the hull structure of evaluated for quality.

• KIEAE Journal
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• v.13 no.4
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• pp.103-112
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• 2013

The Federal Democratic Republic of Nepal(Nepal) is one of the poorest country in the world. People in Nepal are having lots of housing problems including the lack of housing provision. Even Habitat for Humanity Nepal (HfH_Nepal) has developed various programs to diffuse ecological housing, still there are many problems due to financial and technological shortage. The purpose of this study is to verify the effects of suggestion of performance improvement for HfH_Nepal eco house with introduction of the housing situation and efforts to provide sustainable housing by HfH_Nepal in Terai plain. Ideas on CGI sheet roof with poor insulation, double panel bamboo wall and adobe brick wall which can overcome structural and waterproof flaws of the thin single panel bamboo wall. The experiment result shows that both ideas adapted to adobe brick house reduces daily temperature range 50.8% and humidity adjust effect. For the effective provision of adobe brick house, compressive strength was tested for the bricks made with locally available fiber materials. Brick with jute displayed 41.1% betterment than plain brick with closest packing condition while coconut and straw showed 25.1% and 7.9% improvement respectively. Technical and economic problems brought up during the building and experiment process were listed and countermeasures established. This kinds of building prototype houses and experiments can improve the living conditions of people in developing countries with little supplement of resources. Furthermore, consideration of locally available and affordable material can help the social and ecological sustainability in the world.

• Journal of Korean Society of Rural Planning
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• v.17 no.4
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• pp.13-24
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• 2011

This study is to make the preservation plan for sustainable preservation restoration of Namsa-Yedamchon, Sancheong-gun, Gyeongsangnam-do through analyzing the site's characteristics and prototype landscape. Namsa-Yedamchon proudly presents ancient traditions and various historic resources. And several development plan and projects associated with historic resources of this site are in progress. Therefore, it was carried out to make master plan of Namsa-Yedamchon for preserving various prototype landscape. To achieve this, literature search, field survey, local residents' interview and the estimation of value on each prototype landscape were carried out. In literature search, it was analyzed to the previous studies related to this study and past data was collected like past picture, antique books, articles and so on. In field survey, it was carried out to analyze the present condition and the problems of prototype landscape in this site. In addition, the progress of landscape change in this site was analyzed through local residents' interview. The estimation of value on each prototype landscape was carried out to set up the appropriate preservation directions and preservation scope through selecting more important prototype landscape among them. Through these steps, the master plan was deducted and it was divided into 3 type; preservation conservation zone, restoration maintenance zone and renovation utilization according to landscape components, preservation scope, surroundings and so on.

• Journal of Korean Society of Rural Planning
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• v.22 no.1
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• pp.1-11
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• 2016

The analysis of research trends is used to identify key subject areas, research trends over time, and new discussions in a study field. The purpose of this study is to examine the characteristics of research articles published in the area of rural planning using bibliometric methods. Research articles published in the Journal of Korean Society of Rural Planning "Rural Planning" from 1995 to 2014 were analyzed to determine the annual publications, the number of periodical contributions, the authorship patterns, and popular research subjects and keywords. The results of this study are as follows; (1) The number of research papers and authors has increased over the 20 years periods (1995-2014); (2) The most published authors are associated with the study of rural planning. Seoul National University, Rural Development Administration, and Chonnam National University have highly contributed to the paper publications; (3) The most frequent word in titles is "Rural" for the whole period from 1995 to 2014. The most frequent words are "Village" and "Planning" from 1995-2006, and "Landscape" and "Village" in 2007-2010, and "Village" and "Area" from 2011-2014; and (4) The most used keywords are "Rural amenity", "Rural village", and "Rural landscape" for all of the different time frames.

• Proceedings of the Korea Water Resources Association Conference
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• 2011.05a
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• pp.21-21
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• 2011

Many Asian countries are suffered from various problems on water, which include the need for increased access to improves water supplies and sanitation through investments in infrastructure and capacity building, the balances water management system between development and ecosystem, and the need to reduce the human populations'vulnerability to water-related disasters, in particular, from climate variability and evolution. Decison makers are the most influential people in policy making and solving global water problems is central issue in eradicating poverty and achieving sustainable development (MDG). They across the world form an integral part of the architecture of national or regional governance. Their role covers a range of decision-making processes including passing legislation, scrutinizing government policy, and representing citizen through the election. We must ensure that these quiet but important issues get the political space, financial priority and public attention they deserve. Regional bodies such as the EU have also enacted legislation which introduces rules on water quality and other enforceable mattera across state boundaries. With this growing body of laws and policies on water issues, the role of decision makers is growing. Recognizing this role, decison makers' platform is essential to provide an opportunity to discuss crucial water issues in each country or region and for the purpose "2010 Parliaments for Water in Asia" has planned and organized to investigate our common issues and goals. During the meeting, we have an opportunity to observe water policy of Bangladesh, Bhutan, China, Mongolia, New Zealand and the Philippines and share the views on what needs to be done to move forward by decision makers for the future of water. In conclusion, the process of developing the decision makers' platform in each region would be ultimately essential point to increase the awareness of the developed and developing countries' roles, knowledge to clarify roles and responsibilities of each stake holders and finally be a major actor for resolving not only water challenges also issues of human settlements.

• KIEAE Journal
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• v.17 no.3
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• pp.51-58
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• 2017

Purpose: G-SEED's evaluation of existing buildings in Korea is an important point because the energy consumption and CO2 emissions of existing buildings are continuously increasing due to the aging of buildings over time. In 2016, the government has set up a 'Green Remodeling Certification Standard' in G-SEED in order to revitalize the green remodeling business of existing buildings. As a result, G-SEED is distinguished between buildings with green remodeling and buildings with general remodeling. Therefore, this study analyzed the system of the certification of the green remodeling building which is aimed at improving the performance of the building. Method: First, we analyze characteristics of the existing building certification standards of G-SEED(Korea), LEED(USA), and BREEAM(UK). Second, the evaluation criteria are based on the G-SEED Green Remodeling Certification, 2016, LEED for BD + C: New construction and major renovation v.4, BREEAM UK Non-Domestic Refurbishment and Fit-out 2014. Based on the analysis results, we propose the improvement direction of G-SEED Green Remodeling Certification Standard. Result: Existing buildings should be classified into 'existing building certification' for re-certification and 'green remodeling certification' accompanied by building performance improvement. In addition, building green buildings through performance improvement should include not only energy performance, but also creating a pleasant indoor environment and minimizing environmental impact. Finally, existing buildings have accumulated information on energy and resource use, and a performance improvement plan should be established based on this information.

• Korean Institute of Interior Design Journal
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• v.19 no.3
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• pp.162-171
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• 2010

In the field of architecture, the sustainable architectural concept, "green buildings," has been suggested as an alternative to solve the environmental problems; however, the concept has not yet been converted to awareness and development of related technology. The leading role of public sector has been socially and economically influential in the nation, hence green public buildings are significant to stimulate the spread of green buildings in the nation. This study is to draw an appropriate method of implementing the green building concept to the two main government office buildings of Jeju Special Self-Governing Province based on the plan to improve the work environment; it is also to provide long-term directions of implementing policies and reference for the public and private sector to utilize the green building concept. Its research methodology was the survey method. A total of 142 questionnaires were returned by government employees of the two buildings. It accounts for 20% of the total number of 711 workers of the buildings. According to the analysis of the returned questionnaire, the majority of the surveyed have a positive evaluurned toward the introduction of green buildings due to their expecturned for the possible i the buildingstheir work environment. In addition, they showed more interest in space planning with natural ventilation than automatic systems regarding applied methods for green buildings.