• Korean Journal of Medicinal Crop Science
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• v.21 no.4
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• pp.282-288
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• 2013

Gastrodia elata Blume is a achlorophyllous orchid plant that has been used in traditional medicine to treat many human illnesses, such as vertigo, hemiplegia, and epilepsy. It contains three major pharmacological substances; gastrodin, ergothioneine, and vanillyl alcohol. Here we investigated the quantitative changes in those functional components by cultivation conditions and harvest times. The content of ergothioneine was different with cultivation areas, while gastrodin accumulated the higher levels than vanillyl alcohol regardless of cultivation areas. The smaller tubers contained the higher concentrations of gastrodin and the lower concentrations of ergothioneine than did the larger tubers. The cultivation under sun shade screen increased the concentrations of both gastrodin and vanillyl alcohol but decreased the levels of ergothioneine. We also determined the contents of functional substances depending on the harvest times. The concentration of gastrodin was higher in October than in April, while the level of ergothioneine was higher in April than in October. Interestingly, the use of sexually propagated seed tubers produced 1.9 times higher levels of gastrodin compared to vegetatively propagated seed tubers. In this study, we found that three major functional substances in G. elata tubers altered depending on various cultivation practices, which might be important to increase the economic values of G. elata tubers.

• The Korean Journal of Health Service Management
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• v.5 no.3
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• pp.89-100
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• 2011

The present study aims to determine the grade and factors of the effects that influence the stress related to job finding of the university students majoring public health administration. The data was collected for 4days from June 7, 2011. Among a total of 360 cases of the questionaries, only 324 cases were used. To data were analyzed by frequency, t-test, ANOVA, correlation and regression using PASW statistics 18.0. From the analyses, it was found that school environment and study-related stress were some of major causes for stress in job finding. There was statistically significant difference in the sub-areas of job finding-related stress by gender, age, type of school, school grade, whether or not the graduating class and satisfaction with the major selected. There was statistically significant difference among the sub-areas of job finding-related stress such as academic achievements, characters, and school and family environments and whether in graduating class of collegians and their satisfaction with the major they chose turned out to exercise statistically significant impact upon the stress of the students majoring public health administration.

• The Korean Journal of Food And Nutrition
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• v.32 no.5
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• pp.454-461
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• 2019

This study was carried out to investigate the chemical properties of safflower seeds cultivated at some areas in Korea. Safflower was used as one of the functional foods and medicinal plants for many centuries. Porximate compositions of safflower seeds were moisture, 4.8~8.1%, crude protein 16.5~19.5%, crude ash 2.7~3.3%, curde fiber 38.5~43.4%, and crude fat 16.6~24.4%, respectively. Glutamic acid, aspartic acid and arginine were the major amino acids and their contents were 2,587.4~3,143.5 mg%, 1,315.8~1,654.8 mg%, and 1,171.9~1,484.2 mg%. K, P, Ca, and Mg were major minerals and their contents were 611.6~886.3 mg%, 501.5~596.7 mg%, 208.5~641.2 mg%, and 530.6~639.5 mg%, respectively. The free sugars that were identified include raffinose, sucrose, glucose, fructose. ${\alpha}$-tocopherol content was 0.14~3.82 mg%. Contents of vitamin C was 0.43~3.39 mg%. The safflower seeds fatty acids were palmitic acid, stearic acid, oleic acid, linoleic acid and linoleic acid. The major fatty acid was linoleic acid it's content was 74.8~82.9%.

• Journal of Korean Society of Rural Planning
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• v.27 no.2
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• pp.69-76
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• 2021

This study focuses on the relationship between ginseng production per area and meteorological factors. Four areas of major ginseng production are considered in the study. Chungcheongnam-do and Gyengsangbuk-do are selected as the original major production places and Gyeonggi-do and Kangwon-do are selected as the new major places. The meteorological factors applied for study are the average temperature, accumulated precipitation, and integrated sunshine hours. With the data collected across four areas, we used a panel data analysis. From the results of Hausman test, the fixed effects model allowing to control individual area effect is preferable to the random effects model. Based on the results of the fixed effects model, the accumulated precipitation statistically and significantly affect the decreases in ginseng production. Changes in the average temperature negatively affect ginseng production, but the value is not statistically significant. The integrated sunshine positively affect ginseng production, but the value is not statistically significant.

• Journal of Environmental Impact Assessment
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• v.14 no.6
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• pp.415-425
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• 2005

To examine the geochemical behavior and pollution of soils in Gwangju City, an analysis was carried out for pH, on the contents of metals, and organic carbon. Soil samples were taken from environs areas, industrial areas and downtown areas. The major factor controlling the behavior of metallic elements in the soil was chemical weathering of clay mineral in the environs areas, industrialization, and urbanization. Heavy metals including Cu, Pb and Zn were highly enriched for the samples from central part of downtown area. This indicated that the urbanization and the industrialization affected soil pollution. The results show that soil pollution in a metropolitan city which is caused by harmful heavy metals is severest in the center of the city. In consequence, it is inevitable that practical measures should be taken to prevent soil pollution expansion.

• Research in Community and Public Health Nursing
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• v.4 no.2
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• pp.158-169
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• 1993

Health promotions have been identified as foundamental concepts for nursing practice, especially in community health nursing. Nurses have been regarded as having important role's in health promotion activities. According to a review of literature, the concepts of health promotion consist of prevention services, health protection. Health prevention services have three levels : Primary secondary and tertiary. The objectives of this study are (1) to analyze the health promotion activities in school nursing. (2) to analyze health promotion activities in community health nursing posts. (3) to analyze the health promotion activities in industrial nursing while suggesting future direction for health promotion in community health nursing areas. The major results are first, Prevention services are most actively performed rather than health protection, and health education in three areas: School, industries, and community. Health nursing, secondary prevention services follow emergency care, and ordinary diseases control are especially active. Health promotion can ultimately from changing life be accomplished styles, and health behavior. As a consequence, future directions promoting health in community health nursing are desirable areas. Focusing on health protection, and health education that is not activated presently.

• Journal of the Korean Society of Food Culture
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• v.12 no.4
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• pp.411-417
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• 1997

A survey of 28 school foodservice establishments in Seoul and Kangnung was undertaken and detailed information was collected from 3,590 elementary school students. Childrert's satisfaction with the quality of school food was evaluated by questionnaires. It was measured by assessing 15 variables. Statistical data analysis was using SAS package program for descriptive analysis and T-test. Elementary schools in Seoul were all located in urban areas, whereas elementary schools in Kangnung were in urban areas (40.4%), provincial areas (40.0%) and in isolated areas (20.0%). Children seemed to be generally satisfied with the food served, with the lowest score of milk. Mean wastes for soups and Kimchi were found to be larger than those for milk and side dishes. The major reasons for leaving leftover were 'dislike the food (27.4%)'>'too big portion size (23.6%)'>'food is not tasty (19.2%)'>'low appetite (17.6%)'>'food is too overcooked or undercooked (3.9%)'>'food is not hot enough (3.2%)' in order.

• Transactions of the Korean Society of Automotive Engineers
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• v.4 no.6
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• pp.216-222
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• 1996

This paper presents a computational technique to predict roof crush resistance in early design stage of passenger car development. This technique use a simple F.E. model with nonlinear spring elements which represent plastic hinge behavior at weak areas. By assuming actual sections as equivalent simple sections, maximum bending moments which weak areas in major members can stand are theoretically calculated. Results from prediction of roof crush resistance are correlated well with test results.

• Proceedings of the KIEE Conference
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• 1987.07b
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• pp.903-906
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• 1987

The digital private line network provides synchronous data communications over dedicated facilities at several speeds. This service became available to several major metropolitan areas in 1986 with speeds of 4800, 9600, 56000 b/s. The network is expected to grow to include many city areas. In this paper, synchronization plan for the network is proposed.

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 1983.10a
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• pp.118-123
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• 1983

A minicomputer system with the purpose of automations the operations of a Repair Service Bureau is described. SLMOS automates three major functional areas-administration, testing, and report senerations In the administration of repair sevice SLMOS performs a database maintenance functions alons with trouble collection and tracking. Trough ALT, automated testing of customer lines is performed, and the results of the test are utilized to dertermine the action taken to effect a repair. Certain problem areas may be detected and corrected by using the reports senerated by Trouble Report statics and Analysis System.