Buckeye corpus에 나타난 탄설음화 현상 분석

황병후(Hwang, Byeonghoo),강석한(Kang, Seokhan) 한국음성학회 2018 말소리와 음성과학 Vol.10 No.3

This paper presents an acoustic and phonological study of the alveolar flaps in American English. Based on the Buckeye Corpus, the flapping tokens produced by twenty men are analyzed at both lexical and post-lexical levels. The data, analyzed with Pratt speech analysis, include duration, F2 and F3 in voicing during the flap, as well as duration, F1, F2, F3, and f0 in the adjacent vowels. The results provide evidence on two issues: (1) The different ways in which voiced and voiceless alveolar stops give rise to neutralized flapping stops by following lexical and post-lexical levels, (2) The extent to which the vowel features (height, frontness, and tenseness) affect flapping sounds. The results show that flaps are affected by pre-consonantal vowel features at the lexical as well as post-lexical levels. Unlike previous studies, this study uses the Praat method to distinguish flapped from unflapped tokens in the Buckeye Corpus and examines connections between the lexical and post-lexical levels.

Buckeye 코퍼스에 나타난 영어 원어민 화자의 논평 화용 표지어 억양 연구: 증거 표지어를 중심으로

황병후(Byeonghoo Hwang),이효신(Hyoshin Lee) 한국영어학회 2021 영어학 Vol.21 No.-

Intonational Variation by the Effect of Age in Jeju Korean

Byeonghoo Hwang(황병후),Seokhan Kang(강석한) 한국언어학회 2017 언어 Vol.42 No.2

This study investigated the effect of age on the intonational variation of Jeju Korean. It was hypothesized that both of the young and old Jeju Koreans would have different intonation patterns and that the effect would be various depending on the intonational features. Twenty male subjects in both groups – 10 young Jeju Koreans, 10 old Jeju Koreans – took part in the experiment. The subjects produced 13 specially constructed Jeju Korean sentences which consists of declarative (10) and interrogative sentences (3). Results suggest that the intonational features are affected by the effect of age, implying that intonation is in the mid of change process. In the experiment, the younger group showed a narrower range of F0, a fast speech rate, and a gentle slope of the declination tilt, and frequent use of rising pitch accent (L+H<SUP>*</SUP>) even in the declarative sentences. They also expressed different tone patterns at boundary from the old Jeju Korean. However, in some phonology parameters, the younger group has similar patterns with the old counterparts. It implies that intonational change occurs only in some phonetic way, but still show some limitation in the intonational change of phonological features.

Multilingualism in the Linguistic Landscape of Konkuk University Glocal Campus

장인철,황병후,Liu Zhuolin 건국대학교 GLOCAL(글로컬)캠퍼스 스토리앤이미지텔링연구소 2019 스토리&이미지텔링 Vol.18 No.-

The globalization of higher education has reshaped language use and practice on campus. As increasing numbers of international students change the campus into a more multilingual space, a variety of multilingual signs posted on bulletin boards and streets on campus become commonplace. Against such a backdrop of sociolinguistic changes on the globalizing campus in higher education, this study explores the ways in which multiple languages are chosen and used in South Korean higher education. Drawing on the framework of linguistic landscape, the present project analyzes multilingual signs displayed in public spaces of Konkuk University Glocal Campus, a local university that has pursued internationalization policies over the past decade. For this purpose, 208 public signs were collected from thirteen locations and analyzed in terms of language, producers, and communicative functions. The analysis reveals that a typical multilingual sign is in English and Korean and is created by the university authorities for referential functions. The most multilingual spaces are the library, a building for international education, and the dormitory, as these locations display various languages and language combinations. English is the most dominant foreign language in multilingual signage. Chinese and Vietnamese signs have begun to be increasingly present at KU, but their communicative functions are relatively limited. Based on such findings, implications for the university’s language and internationalization policies are also discussed.

Intonational Variation by the Effect of Age in Jeju Korean

강석한,황병후 한국언어학회 2017 언어 Vol.42 No.2

Hwang, Byeonghoo & Kang, Seokhan. 2017. Intonational Variation by the Effect of Age in Jeju Korean. Korean Journal of Linguistics, 42-2, 135-152. This study investigated the effect of age on the intonational variation of Jeju Korean. It was hypothesized that both of the young and old Jeju Koreans would have different intonation patterns and that the effect would be various depending on the intonational features. Twenty male subjects in both groups – 10 young Jeju Koreans, 10 old Jeju Koreans – took part in the experiment. The subjects produced 13 specially constructed Jeju Korean sentences which consists of declarative (10) and interrogative sentences (3). Results suggest that the intonational features are affected by the effect of age, implying that intonation is in the mid of change process. In the experiment, the younger group showed a narrower range of F0, a fast speech rate, and a gentle slope of the declination tilt, and frequent use of rising pitch accent (L+H*) even in the declarative sentences. They also expressed different tone patterns at boundary from the old Jeju Korean. However, in some phonology parameters, the younger group has similar patterns with the old counterparts. It implies that intonational change occurs only in some phonetic way, but still show some limitation in the intonational change of phonological features (Konkuk University).

BK 바이러스 DNA 정량을 위한 TaqMan Probe법 실시간중합효소연쇄반응법의 수행능 평가

정희영,김유리,황경아,최병후,박숙자,성흥섭,김미나 대한임상미생물학회 2007 Annals of clinical microbiology Vol.10 No.2

Background: We evaluated the performance of a newly developed real-time polymerase chain reaction (PCR) method using TaqMan probe (TP) and internal control (IC) for quantitation of BK virus (BKV) DNA. Methods: PCR primers and TP were targeted for the VP1 of BKV and 300 bp-region of VP1 was cloned to prepare a standard DNA. Threshold cycles (Ct) of IC was set at 33±3. The recovery rates, precision, linearity, and limit of detection (LOD) were measured using the standard DNA. To correlate TP with previous hybridization probe (HP) method, Ct of those were compared using 35 HP-positive and 15 HP-negative specimens, and the interpretation agreement was analyzed in 63 consecutive clinical specimens including 32 urines and 31 plasmas. Fifty-three53 specimens measured for IC were analyzed for positive rates and levels of BKV according to Ct of IC. Results: The average recovery rate was 101.1% and intra-assay and inter-assay coefficiency variations were 0.017∼0.059 and 0.036, respectively, with the specimens of 3 log/mL, and 0.041∼0.063 and 0.045, respectively, with the specimens of 6 log/mL. LOD was 183 copies/mL and linearity range was 2.7 log- 12 log/mL. Ct of TP were correlated with those of HP with the function of y=0.8912x+0.3164 (R2=0.9062). Among 63 clinical specimens, 16 were positive in TP and 12 were positive in HP with an agreement of 90.4%. Ct of IC were over 36 in 31 specimens (22 urines and 9 plasmas), of which BKV DNA was much higher in 7 (22.5%) BKV-positive specimens (5.9±1.7 log/mL) than in 4 (18.1%) BKV-positive specimens (3.9±1.0 log/mL) of 22 having Ct of IC ≤36.; 5.9±1.7 vs. 3.9±1.0 log/mL. Conclusion: TP warrants to be a reliable method for quantification of BKV. IC seemed to be essential to differentiate false-negative results or underestimation of BKV in clinical specimens, especially in urine.