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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, Sang-Yong,Cho, Bong-Rae Korean Chemical Society 2005 Bulletin of the Korean Chemical Society Vol.26 No.7
Elimination reactions of $XC_6H_4CH_2CO_2C_6H_3-2-Y-4-NO_2$ have been studied under various conditions. When X was moderately electron-withdrawing, Y = H, and base-solvent was $R_2$NH-MeCN, the reaction proceeded by the E2 mechanism via an E1cb-like transition state. Concave downward curve was noted in the Hammett plots. When X = 4-$NO_2$, Y = Cl, $CF_3,\;NO_2$, and the base-solvent was ${R_2NH/R_2NH_2}^+$ in 70 mol % MeCN(aq), the reaction proceeded by the E2 mechanism. The mechanism changed to a competing E2 and E1cb when X = 4-$NO_2$ and Y = H, MeO, and to the E1cb when X = 2,4-($NO_2)_2$, and Y = $NO_2$. From these results, a plausible pathway of the change of the mechanism from E2 to the E1cb extreme is proposed.
Pyun, Hyung-Chick,Lee, Kyung-Hee,Kim, Jaerok Korean Nuclear Society 1973 Nuclear Engineering and Technology Vol.5 No.2
General physical properties and radiation durabilities of some domestic woods and imported lauans were measured and discussed as a preliminary study on the preparation of W. P. C. The data obtained indicate that 1) the hardness of wood is generally proportional to the specific gravity and to the bending strength, 2) the hardness of wood measured in tangential direction to the annual ring increases along with the distance from the center of the annual ring to the peel, 3) the changes of specific gravity under 100 Mrad gamma irradiation are not remarkable, 4) the hardnesses of the soft woods are decreased more -readily than those of the hard woods, but the decreases of hardnesses are not extreme upto 10 Mrad sugges ting that the woods are sufficiently durable to gamma irradiation of below 10 Mard in the preparation of W. P. C.
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.