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A study on the comparing visual images between the Real garment and the 3D garment simulation of flare skirts (플레어 스커트의 실제착의와 가상착의 이미지 비교)

  • Kim, Hyun-Ah;Ryu, Hyo-Seon;Lee, Joo-Hyun;Nam, Yun-Ja
    • Science of Emotion and Sensibility
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    • v.14 no.3
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    • pp.385-394
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    • 2011
  • The purpose of this research is to compare and analyze visual images between the Real garment and the 3D garment simulation with the various fabrics of flare skirts and to analyze the correlation between mechanical properties and visual images. The picture images (printed on paper) of the Real garment and the 3D garment simulation of experimental flare skirts were shown to the evaluation group of women in their 20s majoring in clothing and textiles, and were evaluated by questionnaires with 32 adjectives. SPSS Version 12.0 statistics program was utilized to analyze data. Factor analysis, One Way ANOVA, T-test and Duncan test were used to investigate visual effect of the Real garment and the 3D garment simulation. As the result of conducting factor analysis on the visual appearance, the images were driven with five factors: 'drapeability', 'attractive', 'body compensation', 'bulkiness', 'activeness'. Visual images were significantly related with mechanical properties of various fabrics, and the visual images between 3D garment simulations and real garment differed with various fabrics and their mechanical properties. Visual images of silk and polyester group, cotton, linen and wool group were significantly related with weight and thickness of kinds of fabrics.

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Antioxidant Activities of Ethanol and Water Extracts from Propolis (프로폴리스 에탄올 및 물 추출물의 항산화 활성)

  • Jeong, Chang-Ho;Shin, Chang-Sik;Bae, Young-Il;Shim, Ki-Hwan
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.39 no.12
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    • pp.1725-1730
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    • 2010
  • To obtain basic information on the potential use of propolis as a raw material in functional food, proximate composition, total phenolics content and antioxidant activities of different propolis extracts in Korea were investigated. Propolis had the highest level of crude fat and the lowest level of crude fiber. The total phenolics content of ethanol and water extract of propolis from Geochang (GEE and GWE), ethanol and water extract of propolis from Jeju (JEE and JWE) were 184.17, 316.19, 204.33 and 47.83 mg gallic acid equivalent/g, respectively. GWE contained relatively higher levels of total phenolics than the other extracts. The antioxidant potential of the extracts was assessed by different in vitro assays such as DPPH, ABTS, reducing power, ferric reducing/antioxidant power (FRAP) and peroxidation inhibiting activities through linoleic acid emulsion system. DPPH and ABTS radical scavenging activities of all the extracts were dose dependent. The GWE exhibited the best performance in reducing power, FRAP, and lipid peroxidation using ferric thiocyanate (FTC) assay. These results demonstrated that GWE has excellent antioxidant activities and thus it has great potential as a raw material for functional food.

AChE Inhibitory Effect and Antioxidative Activity of Submerged Cultured Products from Hericium erinaceum (Hericium erinaceum 액체배양 생성물의 Acetyl-cholinesterase 저해 활성과 항산화 활성)

  • Jung, Jae-Hyun;Lee, Shin-Young
    • KSBB Journal
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    • v.22 no.1
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    • pp.30-36
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    • 2007
  • The water-soluble or ethanol-soluble materials extracted from fruit bodies and cultured products (mycelium and broth) of H. erinaceum were prepared, and their inhibitory effect on acetylcholinesterase (AChE) activity from Electrophorous electricus was investigated. Inhibition of 75-85% for AChE activity at concentration of 10 mg/ml was obtained and the mechanism was due to general non-competitive inhibition. Especially, the supernatant of culture broth by ethanol treatment, exhibited a strong inhibition activity of 94% at 10 mg/ml. The samples from fruit body, mycelium and broth (supernatant and precipitate by ethanol treatment) which were extracted from H. erinaceum, were very effective to inhibit the initial stage oxidation of a linoleic acid at concentration of 0.1 mg/ml. The antioxidative activity of these samples were superior than rutin, vitamin C and tocopherol as antioxidative standards by FTC (ferric thiocyanate) method, and also showed the very strong antioxidative activity of 95% without significant difference of the samples by TBA-RS (thiobarbituric acid-reactive substance) method.

Investigation of Antioxidative and Tryosinase Inhibitory Activities of the Seed Extracts (종자 추출물의 항산화 활성 및 Tyrosinase 저해 활성 탐색)

  • Jeong, Jin-A;Kwon, Su-Hyun;Kim, Young-Jung;Shin, Chang-Seob;Lee, Cheol-Hee
    • Korean Journal of Plant Resources
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    • v.20 no.2
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    • pp.177-184
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    • 2007
  • Bioactive substances, antioxidant activities and tyrosinase inhibitory activities of seed extracts were evaluated to discover new functional materials, using 13 edible or medicinal plants. Total polyphenol and flavonoid contents were highest in Taxus cuspidata, with $57.51mg{\cdot}g^{-1}\;and\;7.98mg{\cdot}g^{-1}$, respectively. Seed extract of Vitis coignetiae${\times}$Vitis labruscana($RC_{30}=0.030mg{\cdot}ml^{-1}$) was found to be the most effective in DPPH radical scavenging test, and the highest ABTS radical scavenging activity was shown in Diospyros lotus($RC_{30}=0.044mg{\cdot}ml^{-1}$). Inhibitory effects on peroxidation of linoleic acid determined by ferric thiocyanate (FTC) method were similar to BHT in Diospyros kaki, Diospyros lotus, Magnolia officinalis, Styrax obassia, Vitis coignetiae, Vitis coignetiae${\times}$Vistis labruscana, Zizyphus jujuba, Zizyphus jujuba var. inermis. For the inhibition against mushroom tyrosinase, Diospyros kaki, Diospyros lotus, Poncirus tritoliata, Prunus serrulata var. spomtanea, Zizyphus jujuba and Zizyphus jujuba var. inermis exhibited inhibitory activity, and especially Diospyros lotus showed the strongest inhibition.

Analysis of Nutritional Compositions and Antioxidative Activities of Korean Commercial Blueberry and Raspberry (국내 시판 블루베리와 라즈베리의 영양성분 분석 및 항산화 활성)

  • Jeong, Chang-Ho;Choi, Sung-Gil;Heo, Ho-Jin
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.37 no.11
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    • pp.1375-1381
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    • 2008
  • The nutritional compositions and antioxidative activities of Korean commercial blueberry and raspberry were investigated. The proximate compositions were 10.47% and 22.67% in moisture, 2.66% and 2.64% in crude protein, 2.04% and 1.67% in crude fat, 81.36% and 70.19% in nitrogen free extracts, 1.48% and 0.85% in crude fiber, and 1.99% and 1.98% in ash of blueberry and raspberry, respectively. Total phenolics content were higher in blueberry (9.028 mg/g) than in raspberry (5.340 mg/g). Major elements of blueberry and raspberry were Ca (451.34 and 97.48 mg/100 g), K (355.40 and 215.20 mg/100 g), P (321.10 and 294.04 mg/100 g), and Na (137.58 and 137.67 mg/100 g). The total amino acid contents of blueberry and raspberry were 2,011.44 mg /100 g and 2,098.82 mg/100 g, respectively. Amino acid were mainly composed of glutamic acid, aspartic acid and leucine. The DPPH and ABTS radical scavenging activities of the 80% methanol extract from blueberry and raspberry were 88.67% and 62.77%, 76.34% and 30.53% at a concentration of 5 mg/mL. The 80% methanol extract from blueberry and raspberry showed considerable antioxidative activity against reducing power in dose-dependent manner. Antioxidative activities using $\beta$-carotene-linoleate and FTC method were twice higher in blueberry than raspberry.

Complementary Role of Elastography Using Carotid Artery Pulsation in the Ultrasonographic Assessment of Thyroid Nodules: A Prospective Study

  • Hahn, Soo Yeon;Shin, Jung Hee;Ko, Eun Young;Bae, Jung Min;Choi, Ji Soo;Park, Ko Woon
    • Korean Journal of Radiology
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    • v.19 no.5
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    • pp.992-999
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    • 2018
  • Objective: The aim of this study was to evaluate the diagnostic performance of gray-scale ultrasonography (US), Doppler scan, and elastography using carotid artery pulsation in the diagnosis of thyroid nodules and to find a complementary role of elastography. Materials and Methods: A total 197 thyroid nodules with 91 malignant and 106 benign pathologic results from 187 patients (41 males and 146 females; age range, 20-83 years; mean age, 49.4 years) were included in this prospective study. The gray-scale, Doppler US images, elastography with elasticity contrast index (ECI), and stiffness color were assessed. The diagnostic performances of each dataset were assessed in order to differentiate benign from malignant thyroid nodules. Results: The optimal cut-off value of the ECI was 1.71. The area under receiver operating characteristic curve (Az value) was 0.821 for gray-scale US, 0.661 for the ECI, 0.592 for stiffness color, and 0.539 for Doppler US. The Az value for a combined assessment of gray-scale US and the ECI was higher than that for the gray-scale US alone; however, there was no statistical difference between the two (p = 0.219). The median ECI values of follicular thyroid carcinoma (FTC) and follicular variant of papillary thyroid carcinoma (FVPTC) were significantly lower than those of the other malignant lesions (p = 0.005). Meanwhile, the diffuse sclerosing variant of PTC and a metastatic nodule showed the two highest median values of the ECI. Conclusion: For differentiating thyroid nodules, the diagnostic performances of the combination of gray-scale US and elastography with the ECI were similar to, but not superior, to those of gray-scale US alone. FVPTC and FTC have a significantly lower ECI value than those of the other malignant lesions.

The Effect of Electroacupuncture at the SP 6 (Sameumgyo)-GB 39 (Hyeonjong) on the EEG (삼음교-현종 전침 자극이 EEG에 미치는 영향)

  • Lee Tae-Yong;Lee Sang-Ryong
    • Korean Journal of Acupuncture
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    • v.20 no.3
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    • pp.9-27
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    • 2003
  • Objectives : The aim of this study was to examine the effects of electro-acupuncture(EA) at the SP6(Sameumgyo)-GB39(Hyeonjong) on normal human EEG using power spectral analysis. Methods : EEG power spectrum exhibit site-specific and state-related differences in specific frequency bands. In this study, power spectrum was used as a measure of complexity(LAXTHA Co., KOREA). 30 channel EEG study was carried out in 20 subjects $(20\;males;\;age=21.4{\pm}0.5\;years)$. Results : In $\alpha$(alpha) band, the power values at F4 channels(p<0.05) during the SP6-GB39 acupoints treatment was significantly increased. But, the power values at Fz channel during the non-acupoint treatment was significantly decreased . In $\beta$(beta) band, the power values at Fz, FTC1, T3 channels(p<0.05) was significantly increased during the SP6-GB39 acupoints treatment. In $\delta$(delta) band, the power values at F4, C3, Cz, CP1, Pz channels(p<0.05) during SP6-GB39 acupoints treatment were significantly decreased.

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Nuclear Design Feasibility of the Soluble Boron Free PWR Core

  • Kim, Jong-Chae;Kim, Myung-Hyun;Lee, Un-Chul;Kim, Young-Jin
    • Nuclear Engineering and Technology
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    • v.30 no.4
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    • pp.342-352
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    • 1998
  • A nuclear design feasibility of soluble boron free(SBF core for the medium-sized(600MWe) PWR was investigated. The result conformed that soluble boron free operation could be performed by using current PWR proven technologies. Westinghouse advanced reactor, AP-600 was chosen as a design prototype. Design modification was applied for the assembly design with burnable poison and control rod absorber material. In order to control excess reactivity, large amount of gadolinia integral burnable poison rods were used and B4C was used as a control rod absorber material. For control of bottom shift axial power shape due to high temperature feedback in SBF core, axial zoning of burnable poison was applied to the fuel assemblies design. The combination of enrichment and rod number zoning for burnable poison could make an excess reactivity swing flat within around 1% and these also led effective control on axial power offset and peak pin power, The safety assessment of the designed core was peformed by the calculation of MTC, FTC and shutdown margin. MTC in designed SBF core was greater around 6 times than one of Ulchin unit 3&4. Utilization of enriched BIO(up to 50w1o) in B4C shutdown control rods provided enough shutdown margin as well as subcriticality at cold refueling condition.

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Textures and Sensible Images on Structural Properties of Washable Wool and Normal Wool Knit Fabrics (Part I) -Focus on the Relationship of Subjective Evaluation, Mechanical Properties and Objective Hand Measurements and Preferences- (워셔블 울과 노멀 울편성물의 구성특성에 따른 질감 및 감성이미지 (제1보) -구성특성에 따른 주관적 평가, 역학적 특성과 객관적 태의 관계를 중심으로-)

  • Kim, Hyun-Ah;Ryu, Hyo-Seon
    • Journal of the Korean Society of Clothing and Textiles
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    • v.35 no.11
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    • pp.1362-1376
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    • 2011
  • This study examines the effect of the structural properties of F/W wool knit fabrics for woman's knitwear on the perceptions of textures and sensible images of consumers and present basic data for textile designing by analyzing the relationship among the structural properties, mechanical properties, objective hand measurements and preferences. A total of 12 kinds of knit fabrics were prepared and investigated in terms of the differences in the subjective, mechanical properties and objective hand measurements according to the structural properties of knit fabrics. The data were analyzed by t-test. The subjective hand attributes of wool knits through factor analysis are categorized into 6 factors. In particular, the 'active/comfort' factor is a meaningful result that reflects the unique characteristics of knit fabrics compared to woven fabrics. Mechanical properties and objective hand measurements have a greater effect on textures than on sensible images; in addition, the structural properties, 'gauge' was the most important factor to influence the subjective evaluation.

Antioxidant Activity of Gomchi (Ligularia fischeri) Leaves

  • Choi, Eun-Mi;Ding, Van;Nguyen, Huu Tung;Park, Sang-Heock;Kim, Young-Ho
    • Food Science and Biotechnology
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    • v.16 no.5
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    • pp.710-714
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    • 2007
  • Ligularia fischeri (LF) has been used to treat jaundice, scarlet-fever, rheumatoidal arthritis, and hepatic diseases. This study was carried out to determine the antioxidant activity of the extract from the leaves of LF by using various established in vitro systems with ${\alpha}$-tocopherol as positive control. The results showed that the ethanol extract of LF (0.05-0.5 mg/mL) displayed a strong free radical scavenging activity against 1,1-diphenyl-2-picrylhydrazyl, ${O_2}^{{\cdot}-}$, and $H_2O_2$ radicals. It was observed that LF extract (1 mg/mL) significantly decreased the levels of malondialdehyde (MDA) to 69 and 89% of control, measured by ferric thiocyanate (FTC) and thiobarbituric acid (TBA) test, respectively. LF extract (0.5-2 mg/mL) was also found to inhibit significantly the amount of malondialdehyde formed from liver homogenate to 69-56% of control. Similarly, in the high $Fe^{2+}/ascorbate$ induction system LF extract (1-2 mg/mL) inhibited carbonyl formation measured by 2,4-dinitrophenylhydrazine reaction to 89-79% of control. Like antioxidant activity, the reducing power of LF extract was excellent at concentration of 0.5-2 mg/mL. These results indicate that LF could be used as a potential source of natural antioxidant.