• 대한예방의학회:학술대회논문집
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• 2005.10a
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• pp.435-435
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• 2005

• 대한예방의학회:학술대회논문집
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• 1999.10a
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• pp.262-262
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• 1999

• Proceedings of the Korea Water Resources Association Conference
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• 2006.05a
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• pp.546-551
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• 2006

It considered the population decrease and becoming older in age of the Rural area and operates by unmaned-non power which self-controlled gate developed. The operational principal used a buoyancy and when water level in the canal arrived to the set water level, in order for gate to be opened. The plate in order to fix to the shape in the canal which begs, it did in the quadrilateral and the rainfall it is sour intensively, canal bank comfort plate in order to ascend completely, it designed. The result which establishes Self-controlled gate, the gate upstream 1km until degree there was water level synergistic effect. It developed 4 as the research project and it established in Ah San city, and it establishes the Self-controlled gate of $B3.2m{\times}H2.4m$ size in Damyang and 100ha it does water supply in the rice field.

• Magazine of the Korean Society of Agricultural Engineers
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• v.43 no.2
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• pp.112-121
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• 2001

In this study, a spatial location-allocation model of center villages (SLAMCV) was developed for selecting spatial center villages and allocating their rear villages. In SLAMCV, rural space was considered as a network with villages for nodes and roads for connecting lines. For quantification of residents’ accessibilities in the network, a disutility index (DUI) was developed and used, which is dependent upon travelling distance between the center and its hinter villages, design vehicle speed in connecting road and population of hinter villages. SLAMCV was verified to Christaller’s hexagonal hierachical settlement system to test the theoretical reasonability and computing algorithm of the model.

• Journal of Microbiology and Biotechnology
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• v.21 no.10
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• pp.1069-1072
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• 2011

A real-time PCR assay method was established to monitor Leuconostoc spp. populations via specific amplification of the dextransucrase gene. Quantification of L. mesenteroides B-512F using both genomic DNA and cell suspensions yielded a log-linear correlation spanning approximately 5 log units. By using this method, monitoring changes of Leuconostoc spp. during sauerkraut fermentation was successfully accomplished with accuracy after inoculation of starter and sugars (sucrose and maltose).

• The Journal of the Korean dental association
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• v.12 no.9
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• pp.707-712
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• 1974

The 800 extracted permanent teeth of first and second premolar were observed and obtained the following results: Those teeth were extracted from the population of dentistless rural area. The cause of extraction of those teeth was only the dental caries. It was performed by the free dental service team from 1966 to 1973. The findings were as follows: 1. The most incidence of caries occurrence was on the distal surface and the least was mesial side occlusal surface. 2. The average rate of decayed surface was higher in the second premolar group than the first permolar. 3. The average rate of decayed surface was higher in the teeth of mandible than maxilla. 4. The average rate of decayed surface was higher in female than male. 5. The average rate of decayed surface per tooth was 3.05±1.83.

• Journal of Agricultural Extension & Community Development
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• v.6 no.2
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• pp.3-15
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• 1999

The objectives of this study were 1) to review the developmental process of agricultural extension services since 1960 in Korea, and 2) to suggest new paradigm of agricultural extension education in the 21st century. The study suggested major objectives of agricultural extension service in Korea should be focused on; 1) Agricultural technology transfer for environmentally friendly food production, 2) Diffusion of energy saving and safe farming technologies and upbringing export oriented agriculture, 3) Education and training of capable farmers for competitive world, and 4) Technological support for home improvement considering harmony of human, environment and life. To achieve major objectives of extension services the following strategies should be employed; 1) National administration and financing. 2) Farmer oriented services should be performed since extension education is originally two-way communication process to help farmers in better decision making, 3) Human resource development for extension educators to meet increasing demands of target population, and policy measures should be implemented to increase morale of extension educators, and 4) Role of public extension should be strengthened to meet needs of majority farmers and public interests in the knowledge based information society in the 21st century.

• Agribusiness and Information Management
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• v.5 no.2
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• pp.1-5
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• 2013

Demographic transition drives changes in consumer demand for food products. This study examines how rising incomes and population trends affect spending on food purchased for home. The objective of this study is to characterize the relationships between selected socio-demographic factors and food selection among South Korean households. Panel data from Rural Development Administration (RDA) in South Korea in 2010 was used (n=971). Household food purchases were classified into one of the five food groups from Composition of Foods of RDA. Multiple regression analysis was used to analyze the effects of household size and income based on the expenditure share on each food group. All statistical analyses were performed using SAS/ PC version 9.3. Results show that household socio- demographic characteristics have a strong influence on food purchasing, with the purchase of vegetables and fruit, and processed food and pre-packaged being particularly sensitive.

• 대한예방의학회:학술대회논문집
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• 1996.10a
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• pp.163-164
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• 1996

• The Journal of the Korean dental association
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• v.12 no.3
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• pp.177-182
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• 1974

The 800 extracted permanent teeth of first and second molar were observed and obtained the following results; Those teeth were extracted from the population of dentistless rural area. The cause of extraction of those teeth was only the dental caries. It was performed by the free dental service team from 1966 to 1972. The findings were as follows: 1. The most incidence of caries occurrence was on the occlusal surface and the least was lingual surface. 2. The distal surface caries rate was higher than the other surface except occlusals. 3. The average rate of decayed surface was higher in the second molar group than the first molar. 4. The average rate of dacayed surface was higher in the teeth of mandible than maxilla. 5. The average rate of decayed surface was higher in female than male. 6. The average rate decayed surface per tooth was 2.54±1.98.