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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.
崔相哲,朴恩珍,朴祐善,片宗根 명지대학교 공학기술연구소 1991 공학기술연구소 논문집 Vol.6 No.-
Pyun(1986) solved the Laplace equation in rectangular domain with Dirichlet type boundary conditions by several different methods, and compared the results. The methods used are the analytical method by separation of variables, the finite difference method, the finite element method with triangular and four-node rectangular elements, and the boundary element method. As a succession of the previous study, the finite element method with eight-node rectangular elements is used to solve the problem. Comparison with the results of previous study indicates that this solution approaches to analytical solution closely with relatively few numbers of element discretizations.
Pyun, Min Ho,Park, Yong Joon Springer US 2016 NANOSCALE RESEARCH LETTERS Vol.11 No.1
<P>In this article, we report a facile approach to enhance the electrochemical performance of Li-rich oxides with vulnerable phase stability. The Li-rich oxide nanoparticles were attached to the surface of graphene; the graphene surface acted as a matrix with high electronic conductivity that compensated for the low conductivity and enhanced the rate capability of the oxides. Our novel approach constitutes a direct assembly of two materials via electrostatic interaction, without a high-temperature heat treatment. The inevitable deterioration in phase integrity of previous composites between carbon and Li-rich oxides resulted from the reaction of oxygen in the structure with carbon during the heat-treatment process. However, our new method successfully attached Li-rich nanoparticles to the surface of graphene, without a phase change of the oxides. The resulting graphene/Li-rich oxide composites exhibited superior capacity and rate capability compared to their pristine Li-rich counterparts.</P>