• Journal of Korean Institute of Industrial Engineers
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• v.26 no.1
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• pp.9-16
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• 2000

In these days, the interior interface design for vehicle drivers was recognized as important affairs. Thereby, many studies are being performed for this. These studies emphasize the physical factors and usability of human, but those for the cognitive factors are not enough. Cognitive factors are very important elements to determine the drivers' performance. In this study, it was studied about the method to extract a driver's cognitive map on IP(Instrument Panel) in dynamic situation, and BPM(Blind-Pointing Method) was proposed for this. The BPM is the method to extract a cognitive map by subject's pointing action under the blinded condition. The experiment was conducted to validate compatibility of BPM as the method to extract a cognitive map. In the experiment, subjects were divided in two groups, the first group of subjects has their own vehicle and driver license, and the second group of subjects doesn't have own vehicle but has driver license. The result shows that the IP form of cognitive map is not different between two groups, and BPM is the compatible method to extract a cognitive map.

• Proceedings of the IEEK Conference
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• 2003.11a
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• pp.449-452
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• 2003

This paper propose a extracting method of the region for image using segmentation and edge information. First propose algorithm extract information using canny edge detector and the image was divided by watershed segmentation. And it extract the mage with edge information by merging region. Finally we compare the proposed method with levelset method. In the result proposed method not only extract the image with accurate region but also reduce operation time.

• Journal of Pharmacopuncture
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• v.11 no.1
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• pp.119-125
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• 2008

Objective : This experimental study was performed to investigate the effects of Houttuyniae Herba extract on anti-inflammation and anti-oxidation. Methods : The cytotoxicity of Houttuyniae Herba water extract and ethanol extract about viability of Raw 264.7 cell were tested using a colormetric tetrazolium assay(MTT assay). We investigated the inhibitory effects of Houttuyniae Herba water extract and ethanol extract on Propionibactrium acnes using paper disk diffusion method. To investigate the anti-inflammation effects of Houttuyniae Herba water extract and ethanol extract on LPS-induced macrophage Raw 264.7 cell, we used ELISA kit. We evaluated anti-oxidation effects of Houttuyniae Herba water extract and ethanol extract on HaCaT cell by Enzyme recycling method. Results : 1. In Houttuyniae Herba water extract and ethanol extract, cell toxicity depended on the density and wasn't difference between two extracts. 2. Houttuyniae Herba water extract and ethanol extract has not the significant inhibition effect of Propionibactrium acnes. 3. Concentration of 50, $100{\mu}g/m{\ell}$ Houttuyniae Herba water extract inhibited the production of NO in the Raw 264.7 cell stimulated with LPS. 4. All extracts except for $20{\mu}g/m{\ell}$ Houttuyniae Herba water extract showed anti-oxidation effect by decreasing the DPPH radicals. Conclusion : These results indicate that Houttuyniae Herba extract has anti-inflammation and anti-oxidation effects. If further study is performed, the use of Houttuyniae Herba extract will be valuable and benificial in the therapy of Propionibactrium acnes.

• The Journal of Internal Korean Medicine
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• v.25 no.1
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• pp.106-118
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• 2004

Antigenotoxicity test (SOS chromotest), antimutagenecity test (Ames test), and antioxidant test (NBT method and xanthine-xanthine oxidase method) were carried out using water-soluble and methanolic extracts from Puerariae Flos. Against the mutagens MNNG and NQO, antigenotoxic activity of methanolic extracts were much more effective than that of water-soluble ones. When the methanolic extract was added to the certain concentration $(100{\mu}{\ell}/tube)$, antigenotoxic acivity against the mutagen MNNG was enhanced. Contrary to the water-soluble extract, the methanolic extract showed high antigenotoxicity against the mutagen NQO with increment of the extract. Against the mutagen MNNG with Ames test, antimutagenic activity of the methanolic extract at $300{\mu}{\ell}/tube$ was 96% as an inhibition ratio of revertant forming CFU/plate. The antioxidant activity of water-soluble extract was comparatively higher than that of the methanolic one.

• Journal of Physiology & Pathology in Korean Medicine
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• v.21 no.6
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• pp.1506-1512
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• 2007

In order to investigate the totale yield, the content of soluble polysaccharide and the others of FEW extract from the yeast fermentated Ganoderma lucidium by supersonic method, the yeast strain was inoculated after pretreatment and subsequently followed fermentation and supersonic extract. The main construction of the extract method is composed of the main glucose and together with the xylose, fucose, galactose and mannose. Results show that because of the generated lactic acid and ethanol, pH value of extract decreases and the safety as well as the preservation is improved. The extract yield, the total soluble polysaccharide, SOD-like activity, cytotoxic effect and growth inhibitory effect against cancer cell line are much higher in FE method than RE method, especially FEW3 extracts fermented during 24hrs. It is concluded that yeast fermentation makes the extract yield increase because of the cell disintegration, the useful ingredients of the germ body, the metabolic products, the insoluble ingredients due to the generation of ethanol, and the cell fragmentation caused by the supersonic waves vibration. Content of generated ethanol, total soluble polysaccharide and extract yield all increase during the fermentation time from 24 to 72 hours and the optimum fermentation condition is at $27^{\circ}C$ for 72 hours. The bitter taste and smell of the Ganoderma lucidium extract is diminished, fragrant-bitter taste and smell is generated so that the whole functional quality is improved.

• Korean Journal of Environmental Agriculture
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• v.33 no.3
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• pp.213-219
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• 2014

BACKGROUND: In an environment-friendly agriculture, plant extracts have been perceived as alternatives of synthetic pesticides. The Environment-friendly Agriculture Promotion Act of Korea has approved cinnamon extract as a matter for the production of commercial biopesticides. Thirteen commercial biopesticides containing cinnamon extract have been marketed locally. However, the analytical method for the quality control of these biopesticides containing cinnamon extract has not been studied. METHODS AND RESULTS: Cartridge clean-up method for the determination of cinnamaldehyde, cinnamylalcohol and salicylaldehyde in biopesticides containing cinnamon extract was developed and validated by gas chromatography (GC). The clean-up method was optimized with HLB SPE cartridges for the bioactive substance in biopesticides containing cinnamon extract, and the eluate was analyzed by GC. The developed method was validated, and the LOQ and recovery rates of cinnamaldehyde, cinnamylalcohol and salicylaldehyde were 0.139, 0.067 and $0.062mgL^{-1}$ and 84.2, 86.5 and 82.1%, respectively. The contents of cinnamaldehyde, cinnamylalcohol and salicylaldehyde were analyzed using the developed method in the 13 commercial biopesticides. Results showed 0.06-17.37%,

• Korean Journal of Food Science and Technology
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• v.26 no.5
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• pp.520-525
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• 1994

This study was carried on the garlic-seasoning oil production by autoclaving method and evaporating method in order to research a developed method. The raw, flake, extract states of garlic was added 40%(w/w) of total amounts to corn salad oil. All samples treated with various conditions analyzed the volatile flavor components(VFC) during incubating ($40{\pm}2^{\circ}C$) and heating ($185{\pm}2^{\circ}C$). In the garlicseasoning oils, the contents of propane, pentane, methyl allyl trisulfide and diallyl trisulfide as the major VFC were decreased while the contents of propenal and hexanal increased according to the storage and heat treatment. The order of flavor contents among garlic states were raw>extract>flake, but flavor stability were raw>flake>extract states during storage, while flake>raw>extract states in heat treatment. VFC in garlic-seasoning oil made by evaporating method were about 66.1% level of those made by autoclaving method, but the changing tendency of their content during storage and heat treatment were shown to be similar. According to those results, autoclaving method and evaporating method were thought to the rational method in preparation of garlic-seasoning oil.

• Korean Journal of Pharmacognosy
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• v.33 no.4 s.131
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• pp.364-371
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• 2002

Yew (Taxus cuspidata Sibe) selected cultivation as drug, food and decorative plant in Gyong-gi province in Korea. To extract the water soluble active ingredients, as a extracting method, there was extracted with 20g of dried seeds with each 20g of butylene glycol(BG) and propylene glycol(PG), and 40 mL of water mixing 72 hours at $40{\pm}5^{\circ}C$, and then they were filtrated by 400 mesh. Appearance of extract of seeds was pale brown, $pH=4.5{\pm}0.5$, $gravity=1.013{\pm}0.05$, a reflective $index=1.373{\pm}0.05$, and yield=75%. Also, to extract the high purity oil from seeds, it minutely pulverized the dried seeds and added the hexane, mixing 2 hours at $20{\pm}57^{\circ}C$. And then, this filtrated it with 400-mesh. It got the purified oil through evaporating them at $55^{\circ}C$ during under vacuum. As the results, appearance was slightly brown, gravity=0.922 acid value=0.12, saponification value=192, and it should be obtained the $40{\pm}5%$ of yield. As the efficacy evalution of cosmetic field, the antioxidative activities by NBT method were stronger 86.0% from extract of talus seeds than 52.0% from green tea extract and 35.0% from skullcap extract as well as the antioxidative activities by DPPH method were stronger 93.7% from extract of seed than 60.3% from extract of green tea and 27.1% from extract of skullcap. These are more effective than other plant extracts. The collagen synthesis rate on the activating fibroblast for Taxus cuspidata Sibe extract showed 35.43%. As the activity of the skin elasticity, PPE(porcine pancreatic elastase)-inhibitory activities of talus extract was 50.8%. Anti-inflammatory activity was more effective to be taken 41.1% of taxus seed oil than 24.2% of steady glycyrrhetinate (SG) as a control.

• The Korean Journal of Food And Nutrition
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• v.24 no.4
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• pp.797-802
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• 2011

I assessed the B($a$)P content from the Ginseng extract, Red ginseng extract, and Ssangwha extract which have high viscosities. It wasn't easy to extract oil from these samples, consequently measuring of B($a$)P was difficult. In order to know the exact detecting contents, I injected standard material of B($a$)P to the above extractions and pre-treated for measurement but it was also difficult to measure of contents exactly. To improve of detecting method, I removed mucinous materials using a 85% phosphoric acid solution or 10% citric acid solution and then processed continuously with $60^{\circ}C$ hot water. The analysis revealed that extracting the samples contained B($a$)P determined the rate of each 70%, 55%, 67% could increase. As a result the detecting method of B($a$)P contents could be improved.

• Proceedings of the IEEK Conference
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• 2002.06d
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• pp.133-136
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• 2002

In this paper, we propose a method to extract vertical stripes projected on human face using Gabor filter, Previous work cannot extract continuous vertical stripes in the eye and mouth region due to their horizontal lines, Proposed method use Gator filter adaptively according to main frequencies and directions of stripes in each block. Experimental results show that Proposed method can extract continuous vertical stripes in the eye and mouth region