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심보토모코 ( Tomoko Shimbo ),노채환 ( Chaehwan Roh ) 한국외국어대학교 언어연구소 2009 언어와 언어학 Vol.0 No.44
This paper aims to analyze the phonological phenomena that occurred on the acquisition of a Korean monophthong system of Japanese speakers. It is mainly examined in terms of the internal representation of vowels within the theoretical framework of the Element Theory. The commonality of the internal structures of [i, e, a] explains the easy acquisition of those vowels by Japanese speakers of Korean. While substitution errors of [□] for [o], or [□] for [u] which are found in Japanese learners`` pronunciation are derived from adapting Japanese constraints to Korean. Also Japanese-speaking learners sometimes pronounce [o] as [□], and [u] as [□]. We argue that these errors occurred on the process of acquiring Korean licensing constraints as a result of the overgeneralization of them. (Hankuk University of Foreign Studies)
한국어의 음절구조 관점에서 본 일본어 특수박의 발음교육
윤은경(Yoon, Eunkyung),심보토모코(Shimbo, Tomoko) 한국외국어교육학회 2012 Foreign languages education Vol.19 No.4
The purpose of this study is to examine the effect of a teaching method on morae in Japanese by comparing syllable structures in Korean and Japanese. Generally, Korean speakers of Japanese tend to ignore a rhythmic unit, a mora, and regard special phoneme /N, Q/ as codas of a syllable resulting in a shortage of a number of mora. This paper, therefore, focuses on a number of mora using a Korean syllable structure. The special phonemes /N, Q/ are represented by a new syllable to describe the rhythmic unit in a satisfactory way. In order to create this new syllable, one vowel and one consonant were combined by extending a vowel before special phonemes /N, Q/ and a variant based on the place of articulation of a special phoneme. Subjects were six students enrolled in college. The production tests were conducted to assess the subjects’ language proficiency as a pre-test, and two hour training sessions were carried out with explicit production practice as described above for a total period of three weeks. The results for the production tests revealed that there were statistically significant differences between the pre-/post-tests (64.2 vs. 89.3). However, it was found that the more complex the syllable structure, the harder it was acquired even after the lessons. It should be emphasized that the teaching method using a syllable structure of Korean for Japanese morae was extremely effective when observed pre and post test.
Lee, Seng-Kue,Tokita, Masatoshi,Shimbo, Yoshio,Kang, Kyung-Tae,Takezoe, Hideo,Watanabe, Junji Korean Chemical Society 2007 Bulletin of the Korean Chemical Society Vol.28 No.12
A new series of chiral bent-shaped liquid crystals with an asymmetric central core based on 1,6- dihydroxynaphthalene and chiral terminal chain prepared from (S)-(?)-2-methyl-1-butanol, 1,6-naphthalene bis[4-(4-alkoxyphenyliminomethyl)]benzoates [N(1,6)-n-O-PIMB(n-2)*-(n-4)O (n = 8-11)] were synthesized. Their mesomorphic properties and phase structures were investigated by means of electro-optical, polarization reversal current, and second harmonic generation measurements in order to confirm the relationship between the molecular structure and phase structure. All odd n (n = 9 and 11) compounds, N(1,6)-9-O-PIMB7*-5O and N(1,6)-11-O-PIMB9*-7O exhibit antiferroelectric phase, whereas even n (n = 8 and 10) compounds was flexible, N(1,6)-10-O-PIMB8*-6O exhibits the ferroelectric phase but N(1,6)-8-O-PIMB6*-4O exhibits the antiferroelectric phase. These results come from the decrease of the closed packing efficiency within a layer and the lack of uniform interlayer interaction between adjacent layers, which were caused by the asymmetrical naphthalene central core. Thus, we concluded that the structure of central core as well as the terminal chain plays an important role for the emergence of particular polar ordering in phase structures.
Seng Kue Lee*,Masatoshi Tokita,Yoshio Shimbo,Kyung-Tae Kang,Hideo Takezoe,Junji Watanabe 대한화학회 2007 Bulletin of the Korean Chemical Society Vol.28 No.12
A new series of chiral bent-shaped liquid crystals with an asymmetric central core based on 1,6-dihydroxynaphthalene and chiral terminal chain prepared from (S)-(-)-2-methyl-1-butanol, 1,6-naphthalene bis[4-(4-alkoxyphenyliminomethyl)]benzoates [N(1,6)-n-O-PIMB(n-2)*-(n-4)O (n = 8-11)] were synthesized. Their mesomorphic properties and phase structures were investigated by means of electro-optical, polarization reversal current, and second harmonic generation measurements in order to confirm the relationship between the molecular structure and phase structure. All odd n (n = 9 and 11) compounds, N(1,6)-9-O-PIMB7*-5O and N(1,6)-11-O-PIMB9*-7O exhibit antiferroelectric phase, whereas even n (n = 8 and 10) compounds was flexible, N(1,6)-10-O-PIMB8*-6O exhibits the ferroelectric phase but N(1,6)-8-O-PIMB6*-4O exhibits the antiferroelectric phase. These results come from the decrease of the closed packing efficiency within a layer and the lack of uniform interlayer interaction between adjacent layers, which were caused by the asymmetrical naphthalene central core. Thus, we concluded that the structure of central core as well as the terminal chain plays an important role for the emergence of particular polar ordering in phase structures.
Perfluoropolymer Surface for Shock-free Homeotropic Alignment of Smectic Liquid Crystals
Jeong, Soon Moon,Kim, Jin Ki,Shimbo, Yoshio,Araoka, Fumito,Dhara, Surajit,Ha, Na Young,Ishikawa, Ken,Takezoe, Hideo WILEY-VCH Verlag 2010 ADVANCED MATERIALS Vol.22 No.1
<B>Graphic Abstract</B> <P>Perfect homeotropic alignment of smectic liquid crystals is demonstrated using an amorphous perfluoropolymer as an alignment layer (see figure). The hydrophobic surface of the perfluoropolymer allows rapid recovery to the homeotropic orientation from the damaged layer structure caused by mechanical shock— for example pressing with tweezers— or crystallization. <img src='wiley_img/09359648-2010-22-1-ADMA200901777-content.gif' alt='wiley_img/09359648-2010-22-1-ADMA200901777-content'> </P>
Ken Yoshida,Hideya Yamazaki,Satoaki Nakamura,Koji Masui,Tadayuki Kotsuma,Hironori Akiyama,Eiichi Tanaka,Nobuhiko Yoshikawa,Yasuo Uesugi,Taiju Shimbo,Yoshifumi Narumi,Yasuo Yoshioka 대한부인종양학회 2015 Journal of Gynecologic Oncology Vol.26 No.3
Objective: To assess actual rates of late vaginal stenosis and identify predisposing factors for complications among patients with previously untreated cervical cancer following high-dose-rate brachytherapy. Methods: We performed longitudinal analyses of 57 patients using the modified Dische score at 6, 12, 18, 24, 36, and 60 months after treatment, which consisted of 15 interstitial brachytherapys and 42 conventional intracavitary brachytherapys, with a median follow-up time of 36 months (range, 6 to 144 months). Results: More than half of the patients developed grade 1 (mild) vaginal stenosis within the first year of follow-up, and grade 2 (97.5%, moderate) to grade 3 (severe) stenosis gradually increased with time. Actual stenosis rates for grade 1, 2, and 3 were 97.5% (95% confidence interval [CI], 92.7 to 97.5), 60.7% (95% CI, 42.2 to 79.3), and 7.4% (95% CI, 0 to 18.4) at 3 years after treatment. Pallor reaction grade 2–3 at 6 months was only a statistically significant predisposing factor for grade 2–3 late vaginal stenosis 3 years or later with a hazard ratio of 3.48 (95% CI, 1.32 to 9.19; p=0.018) by a multivariate Cox proportional hazard model. Patients with grade 0–1 pallor reaction at 6 months showed a grade ≥2 vaginal stenosis rate of 53%, whereas the grade 2–3 pallor reaction group achieved a grade ≥2 vaginal stenosis rate at 3 years at 100% (p=0.001). Conclusion: High-dose-rate brachytherapy was associated with high incidence of late vaginal stenosis. Pallor reaction grade 2–3 at 6 months was predictive of late grade 2–3 vaginal stenosis at 3 years after treatment. These findings should prove helpful for patient counseling and preventive intervention.