• Journal of the Korean Society for Railway
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• v.14 no.2
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• pp.188-193
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• 2011

In order to solve urban transportation problems, the various alternatives are presented to the public transportation system but the master plan of construction and operation is that there is no validity. PRT unlike other public transport system, is a new transport system that can respond appropriately, to solve the traffic demand, environmental and energy problems. Meanwhile, national and international PRT system was not commercially and the actual construction and operation of the PRT in case of base research is not well established. In this paper, PRT concept was established as the new transportation system, the target area(Nan-gok area) was selected to examine the feasibility of PRT systems and the corridor analysis method has been developed to predict the PRT demand as a basic material of planning process.

• Molecules and Cells
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• v.22 no.3
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• pp.300-307
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• 2006

Brassica rapa ssp. pekinensis (Chinese cabbage) is an economically important crop and a model plant for studies on polyploidization and phenotypic evolution. To gain an insight into the structure of the B. rapa genome we analyzed 12,017 BAC-end sequences for the presence of transposable elements (TEs), SSRs, centromeric satellite repeats and genes, and similarity to the closely related genome of Arabidopsis thaliana. TEs were estimated to occupy 14% of the genome, with 12.3% of the genome represented by retrotransposons. It was estimated that the B. rapa genome contains 43,000 genes, 1.6 times greater than the genome of A. thaliana. A number of centromeric satellite sequences, representing variations of a 176-bp consensus sequence, were identified. This sequence has undergone rapid evolution within the B. rapa genome and has diverged among the related species of Brassicaceae. A study of SSRs demonstrated a non-random distribution with a greater abundance within predicted intergenic regions. Our results provide an initial characterization of the genome of B. rapa and provide the basis for detailed analysis through whole-genome sequencing.

• Journal of the Korea Convergence Society
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• v.11 no.5
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• pp.219-227
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• 2020

Rapid changes in the environment, such as the 4th Industrial Revolution, provide crises and opportunities for SMEs. The government is trying to improve and expand the SME support project, but has not been able to achieve the desired results. This study studied the effective performance factors of overseas marketing support projects in response to changes in the role of SMEs. The research was conducted based on a survey of coporations applying for export support projects. As a result of the research, the corporate competence, the support quality from the support institution, and the consultant competency have a significant influence on the utilization of the support project. In addition, it was analyzed that the utilization of support projects has a significant effect on corporate performance. In order to achieve the performance of support projects under a changing export environment, support organizations, consultants, and coporation should strengthen their competences. This study suggests the criteria for judging the actual factors necessary for the improvement of the export support project, and studies on how to strengthen the competences of each factor should be conducted in the future.

• Journal of Environmental Science International
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• v.27 no.7
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• pp.519-529
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• 2018

With rapid economic growth, the urban environment has created a problem of human physical and mental illness. In order to solve these problems, urban forests have emerged as a way to mitigate the environmental risks through improving the polluted environment of the city and improve the quality of life. As the urban forests have expanded, the school forests movement has also been taking an important place recently. The study focused on the performance of school forests by comparing the perceptions among teachers and students about their functions. The questionnaire was composed of 4 questions concerning human matters, 10 questions for space recognition, 4 questions for thermal environment, 2 questions for health promotion, and 20 total questions for composition of survey items. The reliability of the school forest function, number of tree planting areas and quantities, the harmony of the planting, and the satisfaction of the school forest were analyzed in the questionnaire conducted by the school members. Although it does not recognize school forests, it has a positive response to the green space that is built outdoors. It is considered that outdoor education and environmental education are sufficient in school forests and green spaces. The results showed that the outdoor green space was more satisfactory when compared with the general school. Teachers and students' preferences were similar to 'seasonal changes' and' trees of various colors and shapes'. The reliability analysis between each item shows that the coefficient for cronbach's ${\alpha}$ was .700 to .834. The purpose of this study is to identify the perception of forest function among school forest members and to utilize them as a basic data in the future.

• Journal of Korea Game Society
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• v.7 no.4
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• pp.135-145
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• 2007

Recently, the Online Game industry has appeared the various change of the development environment in the rapid growth. So the online game company has been trying to search games able to success and they are performing diversified researching to prepare the judgment ground of success from initial stage of development. The aim of this study is to find success factors which is in the process from development to distribute for the online game through collecting opinions of specialist and taking survey to people employed in online game development field. Consequently, we indicate success factors using Analytic Hierarchy Process (AHP) and make out success factors for the online games. Furthermore, we suggest the way which is able to apply factors objectified so that exceed the limit of using it to the company planning to develop successful games objectively.

• The Korean Journal of Pain
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• v.21 no.2
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• pp.131-135
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• 2008

Background: There has recently been a rapid increase in the number of pain clinics and significant advancement in the treatment of pain in Korea. Therefore, this study was conducted to identify possible problems associated with pain clinics and to use this information to help design future pain clinics. This assessment was conducted from the perspective of professional ballet dancers, who are at high risk for pain like other athletes. Methods: One-hundred professional ballet dancers responded to questionnaires designed to ascertain their preference for different types of clinics, the extent of the pain they experience, and their overall opinion of pain clinics. Results: All of the respondents complained of pain in one or more sites and reported that they had visited some type of clinic for treatment at least once. Overall, the respondents preferred using the following methods to treat pain: orthopedic surgery (76 dancers), oriental medicine (49 dancers), and therapy at pain clinic (48 dancers). Fifty-three percent of the 48 dancers who had received treatment at pain clinics were satisfied with their treatment. Forty-four percent of the 52 dancers who had not been treated at a pain clinic had no knowledge of the existence of such facilities. Conclusions: This survey revealed that, although professional ballet dancers have a high prevalence of pain, many have no knowledge of pain clinics. Therefore, efforts should be made by pain clinics to make information regarding their facilities widely available to professional ballet dancers so they can serve the widest range of clientele.

• Journal of the Korean association of regional geographers
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• v.22 no.4
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• pp.809-825
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• 2016

This study aims to review the existing forms and farmers'perception of the agricultural dry stonewalls under agricultural environment, based on the case of Hado-ri, Gujwa-eup, Jeju Province. The study results are as follows: First, agricultural dry stonewalls in Hado-ri are most external walls, many of which are curvy. Concrete walls have recently shown up to enclose fields. Second, the height of agricultural dry stonewalls varies according to the location, and their length was calculated 16.514km(two farming region) based on a field survey and numerical cadastral maps. Third, farmers in Hado-ri perceive a great need for agricultural dry stonewalls. This means that agricultural dry stonewalls have a sustainable value despite rapid social change. Fourth, the methods for the sustainable preservation of agricultural dry stonewalls involve improving eco-friendly agricultural environment for the stonewalls, building database by village about them, carrying out their transformation and building according to promulgated ordinances, promoting the value of the stonewalls to Jeju citizens, and educating them to perceive the value of the stonewalls.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.8 no.5
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• pp.56-67
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• 2005

Rapid and reckless economical development is causing nationwide deforestation; more and more forest is being developed to be used as a base for economic advancement. While benefiting the national economy, this destruction of forest is creating a serious problem in the National Land Plan. To solve this problem, it is imperative to understand the current condition of damaged forest and make an environment-friendly plan. This paper explains the principles of spatial plan and sets the criteria for the plan, such as patch size, connectivity, and edge of the Landscape Ecology. The paper assesses the conservational value of area that are currently being developed or planned to be developed to figure out the current environmental situation. This conservational value was verified by the field survey. The result of assessment appears that the patch size of the major mountains in site is over 1,000ha and edge is located widely beside roads. The area of the high connectivity is located agriculture area in valley or narrow roads. The research shows that the patch size is related to biodiversity the larger the patch size, the more populated the species are. The research also reveals the conservational value indicated by degree of connection to forest, difference in the structure of vegetation between core area and edge area, and effects of surrounding environment. In further study, we will assess other criteria of conservation value, such as patch shape and fragmentation to the Landscape Ecology, and apply those criteria in biological aspects of the spatial plan.

• The Journal of the Korea Contents Association
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• v.17 no.9
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• pp.145-158
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• 2017

Lately, rapid increase of household debt and economic change has affected cash flow of household, insolvent risk has increased by high repayment burden of the principal and interest. Previous researches was progressing various discussion, composed objective repayment burden index about household debt. But it was relatively insufficient about perception of consumer. This research compare and analysis determinants of subjective repayment burden in household debt by income quintile, using 2016 Household Financial Welfare Survey. The research result is follows. The income 1 and 2 quartile groups have the higher monthly rent and credit card loan and the housing preparation loan ratio, the higher burden on repayment of the principal and interest. The Income 3 and 4 quartile groups have the higher 60s or older and member of household and real estate mortgage loan, the higher burden on repayment of the principal and interest. The Income 5 quartile group has the higher loan ratio for debt repayment preparation, the higher burden on repayment of the principal and interest.

• Journal of Korean Society of Environmental Engineers
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• v.22 no.6
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• pp.1103-1111
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• 2000

With the rapid industrial development, a railway has become a main traffic means. But, rail traffic noise and vibration have become a major problem in urban area as well as a very serious issue in the living environment. Especially, noise and vibration induced by the rail operation have influenced on the residents' living nearby railway tracks. Nevertheless, adequate guidelines for the railway vibration are not yet established because of the lack of basic data and insufficient research works. In this point, the present study attempt to survey the effect and subjective response of railway vibration in urban area using questionnaire. This study also presents a basic data in establishing effective vibration plans for railway vibration in the future.