• Analytical Science and Technology
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• v.7 no.3
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• pp.349-359
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• 1994

A gas chromatographic method for analyzing the gas odorants concentration in natural gas was studied. Eight odorants involving TBM and THT were completely separated by using OV-10 column. The optimization of several interrelated key parameters affecting the response of FPD such as hydrogen flow rate, air flow rate and detector temperature were accomplished. A permeation device was used to obtain calibration curves of TBM and THT. This analytical method has applied to measure TBM and THT used as a natural gas odorant blend in natural gas pipeline. In order to elucidate the relationship between odor level and odorant level feasibility test of fragrance meter was demonstrated.

• Horticultural Science & Technology
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• v.32 no.3
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• pp.415-419
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• 2014

A Cymbidium variety 'Snow Bell' (C. kanran ${\times}$ C. Jack Frost) was developed at the National Institute of Horticultural & Herbal Science, Rural Development Administration in 2011. A cross between C. kanran with small-sized greenish colored flowers and C. Jack Frost with bright pink colored flowers, was conducted in 1999. Based on flower color, leaf shape, flower stalk, and vigor one line was selected. Evaluation and selection trials were conducted from 2006 to 2010. 'Snow Bell' has a light pink sepal (RHS, R56D), red lip (R56A) and a leaf length of 47.5 cm. The average number of flowers on each peduncle is 13.8 and the flower diameter is 6.2 cm. The characteristics of petals and sepals show some incurve and some spreading. 'Snow Bell' has a vigorous growth and a round flower. It has an adequate peduncle height of 50.7 cm compared with leaf length of 47.5 cm, and start blooming in December. In electronic nose analysis, the degree of fragrance between 'Snow Bell' and the C. kanran was similar and both of them showed strong scents, although they had different fragrance patterns.

• Korean Journal of Human Ecology
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• v.17 no.5
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• pp.1015-1026
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• 2008

This study explores the attributes of the color cosmetic products and prices, and their effects on the brand trust. In doing so, our sample population has been segmented according to their lifestyle on color cosmetic to understand the group differences. Based on the previous researches, we have chosen four important characteristics of the customer's lifestyle. The number of iteration on factor analysis revealed that our sample population can be formed into three different groups. The significant group differences resulted on the following study variables; the product functionality, the product fragrance/color, the product vessel design, the price value, the price information, the price rationality. Also, from the product aspect, the product functionality, the product fragrance/color, the product vessel design, explained the significant portion of the Y variance. While, on the aspect of price, the value, the rationality, and information in order, significantly contributed on the brand trust.

• Journal of English Language & Literature
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• v.58 no.6
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• pp.1023-1039
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• 2012

The rising urban space in the United States at the turn of the twentieth century was an exemplary site of struggles between the dominant white population and those who migrated from the imperial peripheries. By setting up the space of Chinatown as a segregated sphere within the urban space, the dominant white American society attempted to recreate the sense of distance between themselves and the racial "others." Accordingly, the dominant narrative representations of San Francisco Chinatown at the turn of the century endeavored to produce and maintain the spatial dichotomies between the orderly spaces of natives and the disruptive immigrant communities within the larger boundary of modern American city space. As a Eurasian woman writer, Sui Sin Far attempted to provide distinctive portrayals of the space of Chinatown and its inhabitants that were far different from those of her contemporaries. Through her portrayals of San Francisco Chinatown in her collection of short-stories, Mrs. Spring Fragrance and Other Writings (1912), Far challenges against the false stereotypes and misreading of this unique immigrant space within and efforts to present the Chinatown as a heterotopic diaspora space where the "insiders" and the "outsiders" of the American urban space intermingle and influence each other.

• Korean Journal of Weed Science
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• v.31 no.2
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• pp.146-151
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• 2011

Essential oil was extracted from cones of metasequoia (Metasequoia glyptostroboides) by steam distillation, fragrance was determined by sensorial analysis and chemical compositions were analyzed by gas chromatography-mass spectrometry with solid-phase microextraction apparatus. Metasequia contained 0.40% of essential oil in the cone. Major impact fragrances of the essential oil were woody, coniferous and herbal, and minor impact fragrances were minty, spicy and oily. There were nine constituents in the essential oil : 8 hydrocarbons and 1 oxide. Constituents were limonene (66.18%), ${\delta}$-3-carene (11.11%), ${\beta}$-caryophyllene (6.66%), ${\beta}$-myrcene (5.92%), ${\beta}$-pinene (4.14%), caryophyllene oxide (2.39%), camphene (2.32%), ${\alpha}$-caryophyllene (0.85%), and tricyclene (0.43%). Herbal and minty frangrances could be due to limonene and ${\delta}$-3-carene, spicy frangrance to caryophyllene, woody and coniferous frangrances to ${\alpha}$-pinene and ${\beta}$-pinene, and oily fragrance to camphene.

• Korean Journal of Weed Science
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• v.32 no.3
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• pp.195-203
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• 2012

The essential oil was extracted by steam distillation from the aerial part of erect bur-marigold (Bidens tripartita L.), one of the noxious weed in paddy field. The composition of the essential oil was analyzed by gas chromatography-mass spectrometry. The fragrance of the essential oil was green, herbal, oily, spicy. There were 42 constituents in the essential oil：17 hydrocarbons, 6 alcohols, 6 acetates, 5 N-containing compounds, 3 ethers, 3 ketones, 1 lactone and 1 S-containing compound. Major constituents were ${\alpha}$-phellandrene (22.50%), ${\alpha}$-pinene (22.21%), 2,4-dimethyl (2,5-dimethylphenyl) methyl ester benzoic acid (15.11%), limonene (10.66%), ${\beta}$-pinene (35.43%), and ${\beta}$-cubebene (5.27%). The $IC_{50}$ value in MTT assay using HaCaT keratinocyte cell line was 0.018%. However, attachment of patch with 0.1% of the erect bur-marigold essential oil for 24 hr did not show any skin toxicity. Overall results of this study suggest that the essential oil of erect bur-marigold could be used as a source for the development of perfumery industrial products.

• Horticultural Science & Technology
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• v.28 no.5
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• pp.899-901
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• 2010

'Sweet Pinky' was developed by National Institute of Horticultural & Herbal Science in 1995. The seedling materials, obtained after selfing of dark pink medium variety 'Pinglong' from 1996 to 2002, were cultivated to 169 seedling lines. The dark pink medium-phalaenopsis '95-183-54' was selected for excellent fragrance and branching habit by individual selection. The selected line was multiplicated and the growth characteristics were investigated for the first examination from 2003 to 2007. It was named as 'Wonkyo F2-17' in 2008 and investigated for the second examination of growth characteristics. The examination was executed for stability, uniformity, yearly reproductibility, and public fancy. It was selected as a high quality cultivar with sweet fragrance and excellent branching habit from the selection council of new cultivars for agricultural products; thereafter, it was registered as variety 'Sweet Pinky' in 2008.

• Journal of Mushroom
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• v.21 no.4
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• pp.247-253
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• 2023

In this study, we examined the effects of gamma irradiation dosage on the mycelial growth of Auricularia auricula-judae and performed analyses of fruiting body yield, growth characteristics, taste, fragrance, and mineral composition. Assessments of mycelial growth in response to gamma irradiation at different intensities revealed an enhancement in the growth of fungi exposed to irradiation at 200 Gy. Fruiting body yield was also highest at 200 Gy, followed by 800 Gy and the control group. On the basis of these observations, we subsequently applied gamma ray doses of 200 and 800 Gy to examine the effects of irradiation on fungal quality characteristics. In terms of the taste of fruiting bodies, we detected no significant differences among the control, 200 Gy, and 800 Gy groups. Contrastingly, with respect to fragrance, we found that fungi treated with 200 Gy were characterized by a pattern that differed from those of the control and other treatment groups. Furthermore, whereas we detected no significant difference among treatments with respect total dietary fiber content, calcium content was found to be higher in the treatment groups compared with the control group, with the highest content being measured in fungi exposed to 800 Gy irradiation. Copper content was confirmed to be higher in the control group, whereas there were no significant differences between the fungi irradiated with 200 and 800 Gy. Contrastingly, the highest levels of zinc were detected in response to 200 Gy irradiation, followed by 800 Gy. Collectively, our findings thus indicate that gamma irradiation can contribute to promoting increases in the fruiting body yield and mineral contents of mushrooms.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.24 no.2
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• pp.100-127
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• 1998

The first part of the paper concerneded about the history, meaning and function of the aromatherapy. And the next part is about the therapeutic effects by the inhalation fragrance or permeation of essential oil through the skin, which are all based on the recent experiments. Today, the aromatherapy is public interest in the world. And also many cosmetic companies have been making use of the aromatherapy as the concept of their new products. But any Korean manufacturer has not taken the application of the aromatherapy in the cosmetics. Why we can't do this. Therfore I try to explain this problem at the last part of the paper and also introduce some Aromatherapy products.

• Proceedings of the Korea Contents Association Conference
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• 2014.11a
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• pp.475-476
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• 2014

본 논문에서는 아동 교육시 활용할 실감형 교육 콘텐츠(Realistic Educational Content)를 구축하여 수업활동시 활용했을 때의 학습향상 효과를 살펴 본 결과 시각 청각을 이용한 콘텐츠보다, 후각을 추가하여 수업을 진행하였을 때 학생들의 집중과 수업에 대한 몰입감이 높아진 것을 실험결과 알 수 있었다.