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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 Do Young(편도영),Han Jin-Wook(한진욱),Euidong Yoo(유의동) 한국스포츠산업경영학회 2008 한국스포츠산업경영학회지 Vol.13 No.1
가상광고는 광고노출이 빈번한 공간의 효과증대와 기존 경기장광고의 약점을 보완하기 위한 수단으로, 오늘날 그 사용이 급격히 증가되고 있다. 노출이 빈번한 광고의 경우, 시청자들은 높은 회상 (recall) 또는 재인 (recognition)을 이끌었다는 기존 연구의 결과를 근간으로, 본 연구는 미국 메이저리그 야구경기 중계동안 노출된 가상광고와 기존의 경기장광고에 대한 시청자들의 재인을 측정, 비교분석 하였다. 총 164명이 이 연구에 참여하였고, 야구 경기장 안 세 군데의 공간 - 포수 뒤 (가상광고), 내야펜스 (경기장광고), 외야펜스 (경기장광고) - 의 광고들에 대한 실험 참여자들의 재인능력이 비교되었다. T-test 분석결과, 실험 참여자들은 기존 경기장광고보다 가상광고에 유의적으로 높은 재인능력을 보여주었다. 또한, 분산분석 (analysis of variance) 측정 결과, 가상광고와 내야펜스에 설치된 광고간의 재인의 유의적 차이는 있었지만, 가상광고와 외야펜스의 광고 그리고 내야광고와 외야광고 사의에서의 재인의 유의적 차이는 발견되지 않았다. 연구 결과를 바탕으로, 가상광고, 경기장광고, 그리고 장소의 선택에 대한 광고 전략이 논의되었다. Virtual signage is being increasingly utilized to maximize the effectiveness of highly visible locations and to overcome limits on traditional stadium signage. Building from past findings that signage in highly visible locations had a high recall or recognition rate, the current study measured recognition rates of virtual and in-stadium signage by location in the ESPN's Sunday Night Major League Baseball games. The recognition rates were examined from 164 surveys on three different locations in a stadium. A significant difference was found between recognition of virtual and in-stadium signage. Results from a one-way ANOVA with a Tukey post hoc test indicated a significant difference between virtual and infield signage. There were no differences between virtual and outfield signage, and between infield and outfield signage. Implications regarding the use of virtual versus physical signage and locations of signs were discussed.
Comparison of waveform inversion, part 3: amplitude approach
Pyun, Sukjoon,Shin, Changsoo,Bednar, J. B. unknown 2007 Geophysical prospecting Vol.55 No.4
<P>ABSTRACT</P><P>In the second paper of this three part series, we studied the case of conventional and logarithmic phase-only approaches to full-waveform inversion. Here, we concentrate on deriving amplitude-only approaches for both conventional- and logarithmic-based methods. We define two amplitude-only objective functions by simply assuming that the phase of the modelled wavefield is equal to that of the observed wavefield. We do this for both the conventional least-squares approach and the logarithmic approach of Shin and Min. We show that these functions can be optimized using the same reverse-time propagation algorithm of the full conventional methodology. Although the residuals in this case are not really residual wavefields, they can both be considered and utilized in that sense. In contrast to the case for our phase-only algorithms, we show through numerical tests that the conventional amplitude-only inversion is better than the logarithmic method.</P>
Pyun, Su-Il,Lee, Sung-Jai,Kim, Ju-Sik The Korean Electrochemical Society 2008 한국전기화학회지 Vol.11 No.4
This article involves a unified treatment of equilibrium thermodynamics of the chemical reaction coupled with other interfacial (phase boundary) reactions. The modified (restrictive) chemical potential ${\mu}_k^+$, such as electrochemical potential, hydrostatic-chemical (mechanochemical) potential (exceptionally in the presence of the pressure difference) and surface-chemical potential, was first introduced under the isothermal and isobaric conditions. This article then enlightened the equilibrium conditions in case where the release of chemical energy is counterbalanced by the supply of electrical energy, by the supply of hydrostatic work (exceptionally in the presence of ${\Delta}p$), and finally by the release of surface energy, respectively, at constant temperature T and pressure p in terms of the modified chemical potential ${\mu}_k^+$. Finally, this paper focussed on the difference between chemical and electrochemical equilibria based upon the fundamentals of the isothermal and isobaric equilibrium conditions described above.