• Journal of Korean Society of Rural Planning
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• v.26 no.1
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• pp.137-147
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• 2020

Rural Development Administration (RDA) has developed a manufacturing technology which can increase the amount of platycodin D in Platycodon grandiflorum. A study is needed to estimate the value of this new technology and predict the market demand for a new product. This study estimates additional amount of willingness to pay (WTP) using contingent valuation method (CVM) for a new product with the technology that RDA has developed. The survey was created under virtual health functional foods market of Platycodon grandiflorums. It was conducted with 1,000 adult males and females aged between 19 and 59 years old in 17 major cities and provinces nationwide from December 4 to December 7, 2018. The amount of WTP for the health functional Platycodon grandiflorum was drawn using maxinum likelihood estimation method. The estimated average and median WTP values are 21,933.85 won per person and 10,000 won per person, respectively. The independent factors, including the ratio of monthly average health function food consumption to income, the average monthly income level of a household, and existence of family members or relatives engaged in food and nutrition-related professions in a household, have been shown to have a statistically significant influence on the WTP. This study presents the potential magnitude of health functional food market and the value of the new technology based on health functional food market.

• The Journal of Sustainable Design and Educational Environment Research
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• v.12 no.3
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• pp.26-35
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• 2013

The study aims to deduct the factors needed for the judgement on merger and abolition policies and draw out suitable types of these policies through interviews with the people concerned during the process of the merger and abolition of schools in rural communities. Following are the results of the study. For the smaller scaled schools, it was possible to notice the fact that there are positive and negative aspects associated with the curriculums and the sociality of the students. However, collectively considering with the continuous decrease in the number of school aged children along with the development of curriculums, personal characters and sociality of the students, it is better when the schools are properly scaled. Also, it is needed to consider new sets of policies as the number of school aged children is continuously decreasing - the current policy states that there should be one school per village. For the implementation while not losing centripetal points of schools within the communities, the Branch policy(1-2 years based or 1-4 years based) is considered. This implementation is considered to be possible because the Branch schools can be turned into facilities such as nursery schools and preschools which enables communities to sustain the spaces for cultural and welfare needs for their own.

• Journal of Korean Society of Rural Planning
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• v.16 no.4
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• pp.61-75
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• 2010

Daily living area can be delimited differently depending on what area is to be focused. Based on regional interaction, the present study empirically analyzed the difference between living areas focusing on rural area and ones relying on urban area. We established two types of living areas in Busan-Ulsan mega city with different focus areas (rural versus urban), using travel OD data (2006). According to the result, the fonn of spatial clusters in urban living area differed from that of spatial clusters in rural area; the boundaries of living area were not fit to those of administrative areas in both types; and living areas in both types tended to extend over more than two administrative areas. The results cast some implications concerning spatial planning and policy for living area delimitation. First, since the spatial structure and interconnection of urban area differs to those of rural area, it is required to delimit living areas discriminatively depending on the objectives of the spatial plan. Additionally, the living area should be established more specifically and systematically by further subdividing the form of spaces depending on the objectives and types of the plan. Second, the administrative areas should be consolidated now that the difference of boundaries of administrative and living areas lead to inconvenience of residents, increased administration costs and scale diseconomy. Lastly, the living areas should be delimited by the metropolitan or mega city planning and thus be reflected to its offsprings.

• Journal of Korean Society of Rural Planning
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• v.29 no.3
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• pp.91-97
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• 2023

The purpose of this research is to apply the regional development attractiveness of the national level determined in the previous study to the city and county level of Chungcheongnam-do. We verified results with the population change of the floating population data. In order to measure regional development attractiveness in 2020, Chungcheongnam-do's integrated air environment index and per capita gross regional product were gathered. Population movement data over the past five years have been used to analyze population changes in the floating population data. Regional development attractiveness depended on the data of GDP per capita, which had a large difference between the maximum and minimum values. The rate of increase or decrease in population change by city and county in Chungcheongnam-do over the past five years has changed significantly since 2021 and characteristics of each group were grouped into four groups. Based on the environment and economic feasibility of the region, it can be the starting point for a new analysis of Korea's regional development projects and the selection of target sites. Policy suggestions can also be made in spatial plans such as short-term comprehensive plans, long-term comprehensive plans, and development plans. It can be a limit of this research that regional development attractiveness was determined by the relatively large per capita gross domestic product. It is necessary to further develop regional development attractiveness by closely investigating the characteristics of the region, social problems, and emissions of environmentally harmful substances.

• Journal of Agricultural Extension & Community Development
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• v.22 no.1
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• pp.55-67
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• 2015

This study aimed at identifying theirs relative importance and the factors affecting self-sufficiency in rural multicultural families. The major findings that were drawn from this study were as follows : Frist, the difference in the self-sufficiency level of their family perceived between husband and married immigrant women was not significant. But, in the level of self-sufficiency will, the level perceived by the husband was higher than it of the women significantly. Second, the hierarchical regression analysis showed that the age of the women(${\ss}=.31$) affected most significantly the self-sufficiency in rural multicultural families, followed by the labour morale of the women(${\ss}=.25$), labour morale of the husband(${\ss}=.20$), academic background of the husband(${\ss}=.19$), academic background of the women(${\ss}=.12$), spouse support level of the women toward the husband(${\ss}=.12$). Third, as a result of a hierarchical regression analysis, the self-sufficiency will variables had more explanatory power on it than social-demographic and/or social support variables. In conclusion, based on results of this study, several plans improving self-sufficiency of the rural multicultural family were suggested. Findings of this study may be used as a basic material to establish the policy supporting self-sufficiency in rural multicultural families.

• The Journal of Asian Finance, Economics and Business
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• v.6 no.2
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• pp.33-44
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• 2019

The Indonesian government launched a new people's business credit program as part of a package of economic policy and deregulation. The interest rate is set lower than the average of the current loan interest rates, especially when compared with rural bank interest rates. To capture the social spatial aspects, quota sampling is applied to ten areas that divided based on the social culture. Further, the method utilized in this research is logit models, which designed to analyse the determinants of asymmetric information particularly on the rural bank and small micro enterprises. The study was conducted in East Java as the province with the largest number of rural banks in Indonesia. Based on the estimation of asymmetric information model to the respondent of rural banks and small businesses, the result shows that adverse selection can be avoided by strengthening the information about prospective borrowers. Regarding moral hazard, rural banks and small businessmen argued that the imposition of the collateral to the debtor has an important role to avoid moral hazard. Rural bank respondents stated that the KUR program with low-interest rates has affected their business development. The results implied the need of broadening the collaboration schemes between this people's business credit program and rural banks.

• Journal of Korean Society of Rural Planning
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• v.28 no.1
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• pp.27-35
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• 2022

This study aims to establish the indicator system of the quality of life of rural residents and to estimate the weights among criteria or sub-criteria that constitute the indicator system of the quality of life using AHP(Analytic Hierarchy Process) method. Indicator system consists of four criteria, that is, health care, eduction & culture, living environment, and income and jobs. Each criterion include three sub-criteria that make up corresponding criterion. The results show that income and jobs was most highly evaluated among the four criteria. It was followed by health care, living environment, and eduction & culture. Among the total 12 sub-criteria, annual income was most highly evaluated, followed by medical service level, job satisfaction, and public transportation environment in terms of global weight which was deduced from expert questionnaire survey. This study implies that rural development policy needs to focus on increasing rural residents' income by creating good quality occupations and increasing the level of medical services, and expanding public transportation services in rural areas. This study has failed to collect local residents' opinions regarding their quality of life in spite of the efforts to reflect the opinions from various expert groups, which is the limitation of this study.

• Horticultural Science & Technology
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• v.32 no.4
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• pp.558-570
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• 2014

This study was conducted to compare the volatile flavor compounds found in the leaves of 15 taxa of Korean native Chrysanthemum species. The volatile flavor compounds from the taxa were collected using a simultaneous steam distillation and extraction technique and were analyzed using gas chromatography/mass selective detector (GC/MSD). A total of 45 volatile flavor compounds were identified with six functional groups: 14 alcohols, 4 ketones, 19 hydrocarbons, 5 esters, 2 acids, and 1 aldehyde. The main functional group in 15 taxa of Chrysanthemum species was alcohols, accounting for 28.7% of volatile flavor compounds, followed by ketones (21.2%) and hydrocarbons (13.2%). Camphor, which is known for its antimicrobial properties, was the most abundant volatile compound (30%) in C. zawadskii ssp. latilobum and var. leiophyllum. In particular, C. indicum subspecies and C. boreale contained ${\alpha}$-thujone, which has outstanding anti-bacterial, anti-cancer, anti-inflammatory, anti-ulcer, and anti-diabetic efficacies. C. indicum var. albescens could be used in perfumes, since it showed 21 times more camphene than C. indicum. In addition, C. indicum var. acuta contained a fairly high content of 1,8-cineole, which has an inhibitory effect on mutagenesis. C. lineare contained only pentadecanoic acid compounds, whereas other taxa hexadecanoic acids. Overall, the Korean native Chrysanthemum species had considerable variation in volatile flavor compounds in their leaves. This study provides a good indication of specific potential use for various applications.

• Journal of The Korean Society of Agricultural Engineers
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• v.62 no.4
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• pp.63-73
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• 2020

The area of paddy fields for upland crop cultivation is gradually increasing. In this context, we developed a chain type mole drainer that can be attached to a tractor to prevent the wet injury of crops. To conduct a field test, we formed underdrains at 2 m intervals in a paddy field wherein soybeans are cultivated, and we investigated the status of the soil moisture, groundwater level, and soybean growth during the cultivation period. The soil moisture content decreased by 22.3~26.8% in the test plot and by 5.9~6.9% in the control plot during a period of 57~88 hour after a rainfall of 41.5~157.0 mm. The effect of underdrainage was clear as the hourly groundwater level decreased approximately 2.8 times faster in the test plot compared with the control plot. Moreover, the soybean yield was greater by 78.6 kg/10a in the test plot than in the control plot. Therefore, for soybean cultivation in paddy fields, the use of the developed mole drainer is expected to help in improving the drainage and increasing the soybean yield.

• Journal of The Korean Society of Agricultural Engineers
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• v.64 no.1
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• pp.99-110
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• 2022

In this study, the generation and emission characteristics of particulate matter and gaseous matter in a mechanically ventilated layer house were evaluated. Each concentration of PM₁₀, PM_2.5, inhalable dust, respirable dust, and NH₃ was measured and compared with occupational limit considering seasons and respiratory disorder. CAPPS (Clean Air Policy Support System) of the Ministry of Environment proposes the emission factors of PM₁₀, PM_2.5, and NH₃ for a layer houses however, emission factors are still calculated from foreign factors such as CONINAIR values. As a result, it is urgent to develop national emission factors for domestic layer house. Emission coefficients of the studied mechanically-ventilated layer house in a summer season were calculated as 0.052 kg/head/year for PM₁₀, about 12% lower than that of CAPSS, and 0.0068±0.0038 kg/head/year for PM_2.5, showing no significant difference. Emission factor of NH₃ was calculated as 0.159±0.031 kg/head/year, about 51% lower than that of CAPSS.