• 대한가정학회지
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• 제46권5호
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• pp.73-86
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• 2008

The purpose of this study was to investigate the effect of teachers' self-efficacy and teacher-child relationship on young children's adaptation to childcare centers, and to examine the interaction effects of teachers' self-efficacy and teacher-child relationship on young children's adjustment to childcare centers. The subjects of this study were 360, three- to four-year-old who attended childcare centers located in Chungbuk province and their 72 teachers. The results of this research indicated that the main effect of teachers' self-efficacy and the main effects of familiarity and conflicts between teachers and children on young children's adjustment to childcare centers were significant. The interaction effects of teachers' general efficacy and conflicts or familiarity between teachers and children on young children's adjustment to childcare centers were also significant.

• 한국의류학회지
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• 제26권7호
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• pp.937-945
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• 2002

The purpose of this study was to investigate the effects of internet shopping interest, fashion interest, sex on internet clothing purchase intention and selection criteria. The subjects used for the study were 76 male and l25 female college students. The clothing purchase intention was measured by five categories: formal wear, casual wear, sports wear, under wear, and fashion accessories. The clothing selection criteria consisted of four factors: aesthetics, conformity, individuality, and comfort. The results showed that there was a main effect of internet shopping interest on internet purchase intention fur all clothing categories. Also, there were differences between men and women concerning the purchase intention of casual wear and sports wear. In regard to clothing selection criteria, the results showed that fashion interest and sur had an impact on three factors of clothing selection criteria. The subjects considered aesthetics, conformity, and individuality important when they had higher fashion interest or were female. In addition to main effects, the interaction effects among internet shopping interest fashion interest, and sex were discussed.

• Natural Product Sciences
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• 제13권4호
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• pp.342-346
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• 2007

The antimicrobial activity of the essential oil from Pelargonium graveolens and its effects when it was combined with current antibiotics against antibiotic-resistant strains of Streptococcus pneumoniae were evaluated. The minimal inhibitory concentrations (MICs) of the essential oil fraction and the main components of this plant were determined for two antibiotic-susceptible and two antibiotic-resistant strains of S. pneumoniae using broth microdilution tests. The combined effects of the oil with erythromycin, norfloxacin, or oxacillin were evaluated using a checkerboard microtitre assay. The combination of the oil fraction of P. graveolens, or its main component, together with the antibiotics tested significantly lowered the MICs of the antibiotics against all of the tested strains with fraction inhibiting concentration indices (FICs) ranging from 0.16 to 1.50. In particular, the activity of norfloxacin against all of the tested strains of S. pneumoniae was enhanced significantly by combination with citronellol. In conclusion, the combination of P. graveolens oil with antibiotics could be used to reduce the effective dose of antibiotic and to modulate the resistance of S. pneumoniae strains.

• 한국환경복원기술학회지
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• 제3권3호
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• pp.81-99
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• 2000

The shelterbelts are very important to conserve and protect the sandy land, vegetation coverage, farmland, livestock and human life in the desertified land. The shelterbelts are constructed by the several row-plantings of high-adaptable species in the desertified land. The shelterbelts have various kind of type, and there are shelterbelts for conservation of farmland in dry the region, the protective shelterbelts (windbreaks for blowing-sand, artificial sanddune fixation by revegetation, and construction of farmland shelterbelts to protect farmland and pasture from wind erosion, etc.) in the semi-dry steppe, shelterbelts around the villages and oasis for sanddune fixation, shelterbelts for protection of railroads, and so on. The shelterbelts consist of main she1terbelts and minor shelterbelts. The main shelterbelts were constructed by being perpendicular to main wind direction, and the minor shelterbelts were constructed by being perpendicular to the main shelterbelts. Generally, the width of shelterbelts is 8~20m, and the number of row-planting is 4~10. The grid sizes of shelterbelts networks are $400{\times}400m$, $300{\times}500m$, $100{\times}200m$, and so on, and there are ventilation type and closing type in the type of shelterbelt. The width, number of row-planting, grid size and type of shelterbelt are selected by the local characteristics. The effects of shelterbelts are mainly the climate improvement and mitigation, such as prevention of occurrence of strong wind, cold wind and blowing-sand. And, the other effects of shelterbelts are effect of reforestation, increase of agricultural productions, establishment of greenbelts and green forests, construction of landscape-eco shelterbelts, improvement of life environment of local villages, supply of fuel wood and agricultural wood, land amelioration, effect of revegetation and restoration of desertified land, and so on. The kinds of the tree species mainly used for the construction of shelterbelts have differences between regions, but main species are Populus euphratica, Populus simonii, Populus bolleana, Populus tomentosa, Salix flavida, Salix mongolica, Tamarix chinensis, Hedysarum scoparium, and so on.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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• pp.1188-1192
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• 2004

Polyamic acid precursors were prepared by mixing various main chain dianhydrides, main chain diamines and side chain diamines. Copolyimide films with alkylcyclohexylbenzene as a side chain were prepared by thermal imidization of polyamic acid precursors. Pretilt angles on rubbed polyimides changed according to the side chain and main chain structures of the polyimide. Consequently, we found that LC pretilt angles of polyimide films with a liquid crystal structure as a side chain showed to be approximately 90$^{\circ}$ when a linear and rigid polyimide main chain and a side chain of suitable length were employed.

• Elastomers and Composites
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• 제32권1호
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• pp.20-28
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• 1997

This study have Investigated the effect of various factors related to the physical properties of vulcanizated rubber compounds. rubber type, carbon black type and carbon black loading were selected as main factors and evaluation were tested by tables of orthogonal arrays with 3 factors and 3 levels. rubber types have affected cure time, tensile strength, and $T_g$ as main factor and carbon black loading have affected viscosity, scorch time, maximum torque, hardness, 300% modulus, rebound, heat build-up, $0\;&\;60^{\circ}C$ tangent delta, PICO and CUT/CHIP loss as main factor but the effects of carbon black type have affected only bound rubber content.

• 동의신경정신과학회지
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• 제14권2호
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• pp.27-34
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• 2003

I studied connection between meridians and Dianxian(癲癎, Epilepsy). Dianxian is caused by Feun(風) based on the Blood-Deficiency(血虛) which is induced by Heart-deficiency(心虛). Therefore, when Heart and blood are in deficient condition(心血虛), Heart meridian(心經) and Pericardium meridian(心包經) can be easily affected by Feng(風), which is main cause of Dianxian. Furthermore, Liver heat(肝熱) is another main cause of Dianxian. It shows along Liver meridian(肝經) and affects Pericardium Meridian(心包經). Heart, Pericardium and Liver are main organs of human psychoconscious activities, and also are main pathological organs of Dianxian. Dianxian progresses in several ways and simtoms of Dianxian are variant according to the deficiency-exess state(虛實) of Stomach and Spleen meridians(脾胃經). So, I concluded that controling Heart, Pericardium, Liver, Stomach and Spleen meridians can make therapeutical effects on Dianxian. So I report it for the better treatment, and it shoud need further study.

• Journal of Ginseng Research
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• 제14권1호
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• pp.10-13
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• 1990

Effect of an acidic polysaccharide fraction In Korean white and red ginseng on lipolytic action of Toxohormone-L was studied. Crude acidic polysaccharide fraction was extracted from main and lateral root of Korean white and red ginseng separately and purified several times. Inhibitory effect of crude polysaccharide fraction was determined by unit (1 unit is loft inhibition rate per Is sample). Yields of purified crude polysaccharide fraction of main and lateral root of red ginseng were 2.9 and 2.2 times higher than those of white ginseng, respectively. Inhibitory effects of main root of white and red ginseng, 11.hen final reaction concentrations of sample were 50, 100, 200, 500 $\mu$g/ml, were 37.2가 and 23.7% higher than those of lateral root of white and red ginseng. Inhibitory effect of main root of red ginseng was 2.3 times higher than that of white ginseng.

• 국제강구조저널
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• 제18권5호
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• pp.1710-1722
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• 2018

Investigating remained damages from terrible earthquakes, it could be concluded that some events including explosion because of defect and failure in the building mechanical facilities or caused by gas leak, firing, aftershocks, etc., which are occurred during or a few time after the earthquake, will increase the effects of damages. In this paper, by introducing a complete risk analysis which included direct and indirect risks for earthquake (the main shock) and aftershock, the corresponding robustness index was created that called as "robustness index sequential critical events risk-based". One of the main properties of the intended robustness index is using progressive collapse percentage in its evaluation. Then, in a numerical example for a 4-storey moment resisting steel frame structure, a method is presented for obtaining all effective parameters in robustness index evaluation based on the intended risk and at last its results were reported.

• International Journal of Internet, Broadcasting and Communication
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• 제16권3호
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• pp.298-304
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• 2024

The smart factory promotion project is a project that uses ICT technology to improve the production process and the entire management environment system. In Korea, the smart factory promotion project has been continuously implemented since 2014, and the Smart Factory Promotion Team is supporting it nationally. The smart factory promotion project has shown positive results in some companies even in difficult environments such as the COVID-19 situation. In order for each company to promote the smart factory project, it must receive business approval through an evaluation based on the business plan. In order to receive business approval, it is important that the main contents described in the business plan (introduction (business) goals, qualitative goals, quantitative goals, functional composition diagram, etc.) are described consistently. In this study, we studied the cases of several companies to determine whether the main contents of the companies' business plans were consistent. The main contents to be maintained in consistency were the purpose and necessity of introduction, quantitative goals, qualitative goals, functional composition diagram, and expected effects.