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남혜원,현영희,변진원 동아시아식생활학회 2004 동아시아식생활학회지 Vol.14 No.6
This study was performed to develop a standardized recipe for yuza pyun made of citron juice that is by-product of citron tea, to increase the utilization of citron. The effects of mungbean starch(15%, 18%) and dilution ratio of yuza extract(100%, 75%, 50%) on the quality characteristics were evaluated. The quality characteristics of the samples were estimated in terms of sweetness, color difference, texture profile analysis and sensory evaluation. Sweetness of the 18% mungbean groups were higher than 15% groups(p<0.001). The values of Hunter color system indicated that higher content of yuza extract tended to increase yellowness significantly(p<0.001). Texture profiles of hardness, adhesiveness, springiness, cohesiveness, gumminess of yuzapyun showed no significant differences among samples. For sensory evaluation, color and sourness were decreased as yuza extract was diluted, whereas elasticity and sweetness were increased. Yuza pyun containing 18% of mungbean starch with 50% diluted extract was the most preferred in overall acceptability. According to multiple regression analysis, color, sweetness, elasticity and sourness(in order) were important control factors in overall acceptability.
Danielle Ooyoung Pyun,Miri K. Chung,Ho Jung Choi 고려대학교 언어정보연구소 2013 언어정보 Vol.17 No.-
Pyun, Danielle O., Chung, Miri K. & Choi, Ho Jung. 2013. KFL learners’ acquisition of Korean locative particles: A corpus-based contrastive interlanguage analysis. Language Information. Volume 17. 23-46. Adopting the contrastive interlanguage analysis methodology, this study investigates KFL (Korean as a Foreign Language) learners’ acquisition of Korean locative case particles. A learner corpus compiled from eighty-seven intermediate learners of Korean was compared with a native speaker corpus on the frequency distribution of the five semantic categories of the Korean locative case (i.e, static location, dynamic location, time, goal, and source). In addition, learner errors on the use of locative case particles were quantified and examined according to the five semantic categories. The results of this study showed that KFL learners’ use of locative case particles substantially deviated from native speakers’ usage in frequency. Learners’ inaccurate and limited use of locative case particles were attributed to such factors as L1 transfer, overgeneralization, prior input, and interlanguage development.
Pyun, Chang-Won,Kim, Ji-Han,Han, Kyu-Ho,Hong, Go-Eun,Lee, Chi-Ho Published for International Union of Biochemistry 2014 Biofactors Vol.40 No.5
<P>BALB/c mice were exposed to chronic alcohol-induced oxidative stress by intragastric administration of excessive ethanol (5 g/kg body weight) during the 24-week period. Curcumin (0.016%) or capsaicin (0.014%) containing diets were fed with or without ethanol treatment in four groups. There was no statistically significant difference in the behavioral test between all groups during the experimental period. Only one alcohol-treated mouse fed a normal diet showed a behavioral disorder and died before the raising period was completed. There were no effects on the activity of catalase and superoxide dismutase in the brain. However, curcumin or capsaicin treatment prevented alcohol-induced decline in brain weight. Furthermore, the levels of malondialdehyde and phosphatidylcholine hydroperoxide were significantly reduced in the brain tissue extract. The findings of this study demonstrated and confirmed the antioxidant effect of curcumin and capsaicin against alcohol-induced oxidative stress, and they suggest a direction for further studies.</P>
Study on Thermal Environmental Characteristics of Water-Retentive Asphalt Pavement
Pyun, Hee Bum,Kim, Ree Ho,Lee, Sang Ho,Park, Jong Bin Trans Tech Publications, Ltd. 2010 Materials science forum Vol.658 No.-
<P>Urban area may be warmer than surrounding regions due to asphalt and concrete for roads, buildings, and other artificial structures. Especially, pavements have become an important contributor to this effect by altering land-cover over significant portions of an urban area. Therefore, researchers have studied ways to reduce the heat island effect such as cooling pavement, porous pavements such as water-retentive or water absorbing pavements. Accordingly, this study aims at the development of water-retention asphalt pavement for urban areas in order to solve problems related to the distortion of water cycle and the heat island phenomena. Experimental results indicated that asphalt pavement using developed water retaining material was effective to decrease its surface temperature compare to other pavements. A correlation between air temperature and surface temperature of the pavement was obtained to estimate the efficiency of the developed pavement materials.</P>
Epistasis between polymorphisms in ACVR2B and ADAMTS19 is associated with premature ovarian failure
Pyun, Jung-A,Kim, Sunshin,Kwack, KyuBum by The North American Menopause Society. 2015 Menopause Vol.22 No.2
OBJECTIVE: This study investigated whether epistasis between single nucleotide polymorphisms (SNPs) within ACVR2B (activin A receptor, type IIB) and ADAMTS19 (ADAM metallopeptidase with thrombospondin type 1 motif, 19) genes is associated with premature ovarian failure (POF). METHODS: One hundred twenty women with POF and 152 controls were recruited for stage I, and 1,641 additional female controls participated in stage II. GoldenGate assay with VeraCode technology was used for genotyping ACVR2B and ADAMTS19 SNPs in stage I. In stage II, we obtained genotype data for SNPs using Affymetrix Genome-Wide Human SNP array 5.0 and imputed data using IMPUTE program from the Korean Genome Epidemiology Study. RESULTS: In stage I, five combinations showed significant synergistic interactions after Bonferroni correction. One SNP (rs1468077 within 5&vprime; flanking region) and two intronic SNPs (rs2268753 and rs2268757) in ACVR2B and three intronic SNPs within ADAMTS19 (rs13158524, rs1476083, and rs1972624) were involved in synergistic interactions in a recessive manner. In stage II and combined analyses, we could not find any significant interactions between the SNPs. However, diplotypes within ACVR2B and ADAMTS19 that consist of risk genotypes or alleles in the results of significant synergistic interactions between SNPs showed significant interactions after Bonferroni correction. Thirteen and nine significant synergistic interactions were found in a dominant model in stage II and combined analyses, respectively (strongest association in combined analysis: odds ratio, 5.93; 95% CI, 2.47-14.20; P = 6.65 × 10). CONCLUSIONS: Epistasis between polymorphisms within ACVR2B and ADAMTS19 is significantly associated with susceptibility to POF.