The production of tone 3 by advanced Korean learners of Mandarin

Yuping Fu,이용철 경희대학교 언어정보연구소 2022 언어연구 Vol.39 No.1

This study examined the differences in tone 3 productions between advanced Korean learners and native speakers of Mandarin by implementing three analyses: acoustic, frequency, and distance metric analyses. Based on the acoustic analyses, the advanced learners exerted more articulatory effort in producing tone 3, regardless of the syllable positions within disyllabic words. Compared to the native speakers, the production of tone 3 by the learners was longer in duration, more intense, and displayed steeper falling and rising pitch movements—these are all salient cues for tone 3 as a dipping pitch contour. The native speakers, however, economized articulatory effort in their tone 3 productions. They did not lower the pitch target of tone 3, nor did they employ the steep falling and rising pitch movements to the same extent as the advanced learners. According to the frequency analyses, the native speakers yielded more variants of half-T3 than the advanced learners in both syllables of the disyllabic words. Finally, the distance metric analyses revealed that the advanced learners’ pitch contours were more different from those of the native speakers in syllable 2 than in syllable 1. Consistent with previous work, our results emphasize that the learners’ dipping pitch contour for tone 3 stems from the widespread second language pedagogy of Mandarin tones, where tone 3 is predominately described as a dipping tone. Learners, therefore, must understand and become competent using varied tone 3 patterns before attaining native-like or near-native competence.

Visualising Corpus-based Discourse Studies from 1995 to 2019 by Using a Bibliometric Analysis

Yuping Fu,Yuanzhu Liang,Zongjie Zhang,Yong-cheol Lee 한국외국어교육학회 2021 Foreign languages education Vol.28 No.2

This study employed a bibliometric method to visualize the evolution of corpus-based discourse studies between 1995 and 2019, with a total of 2,174 English-language documents and their 83,184 references collected from Scopus, the Social Science Citation Index, and the Arts & Humanities Citation Index. Co-citation analysis of the predominant authors, references, and publication sources disclosed that the field has expanded over the past 25 years from primary pattern analysis of descriptive and functional grammar to principal investigations of interdisciplinary issues, some of which are central to pragmatics and sociolinguistics. This shift of research focus is also evidenced by keyword analysis. Scholars have been progressively more fascinated by such social issues as news discourse, business discourse, gender and language, and identity. Some emerging topics like social media, media discourse, legal discourse, and the metadiscourse interpersonal model may represent research hotspots and trends in this area. Bibliometric approaches play an important role in providing hands-on evidence-based comparisons and visualizations of previous research outputs using different time bands.

A Bibliometric Analysis of International Advances in L2 Motivation Research (2004-2018)

Fu, Yuping,Zhang, Zongjie 한국중앙영어영문학회 2019 영어영문학연구 Vol.61 No.4

This paper explores the international advances of L2 motivation studies by analyzing articles published between 2004 and 2018 using VOSviewer software. A total of 752 English articles were retrieved from the core collection of Web of Science (WoS) indexed in SSCI and A&HCI journals. The dimensions of the bibliometric analysis include publications, citations, research trends, and hotspots. The results show that: 1) the annual output displays a steady surge over the past 15 years with the final year covering over five times as many studies as the first. The high percentage of articles in top journals implies a matured area; 2) the knowledge basis predominantly involves three categories, i.e., applied linguistics, educational and social psychology, and computer-assisted language learning, which adequately illustrate the interdisciplinary and multidimensional nature of the research. 3) The mainstream research will remain in variables of individual selves and differences in the classroom setting. Nevertheless, the L2 motivational self-system, technology and language motivation, and demotivation are more likely to become new trends. Hopefully, the findings from this research will provide a general view of the domain and a forum for further discussion.

A Bibliometric Analysis of International Advances in L2 Motivation Research (2004-2018)

Yuping Fu,Zongjie Zhang 한국중앙영어영문학회 2019 영어영문학연구 Vol.61 No.4

This paper explores the international advances of L2 motivation studies by analyzing articles published between 2004 and 2018 using VOSviewer software. A total of 752 English articles were retrieved from the core collection of Web of Science (WoS) indexed in SSCI and A&HCI journals. The dimensions of the bibliometric analysis include publications, citations, research trends, and hotspots. The results show that: 1) the annual output displays a steady surge over the past 15 years with the final year covering over five times as many studies as the first. The high percentage of articles in top journals implies a matured area; 2) the knowledge basis predominantly involves three categories, i.e., applied linguistics, educational and social psychology, and computer-assisted language learning, which adequately illustrate the interdisciplinary and multidimensional nature of the research. 3) The mainstream research will remain in variables of individual selves and differences in the classroom setting. Nevertheless, the L2 motivational self-system, technology and language motivation, and demotivation are more likely to become new trends. Hopefully, the findings from this research will provide a general view of the domain and a forum for further discussion.

A Corpus-Assisted Critical Discourse Analysis of South China Sea Issues in Chinese, American, and Philippine Newspapers

Wang, Jiayin,Fu, Yuping,Lee, Yong-cheol 한국중앙영어영문학회 2020 영어영문학연구 Vol.62 No.4

With a corpus-assisted discourse analysis (CADA) on South China Sea (SCS) issues in Chinese, American, and Philippine newspapers over the past 10 years, this paper aimed to reveal ways of representing the SCS issues from three leading newspapers (China Daily, the Manila Times, and the New York Times) and expound the complicated relations between language use and the historical-socio-political contexts, which, in the end, provides valuable context for the study of the dispute between Japan and South Korea as well as other significant issues. The synchronic and diachronic analyses of the issues from 2010 to 2019 were conducted through a synergy of critical discourse analysis (CDA) and corpus linguistics (CL). The results showed that the representations in China Daily are generally cooperative negotiation-oriented. Those in the Manila Times were inclined toward being proactively and radically oriented during the Aquino III period, while they were moderately oriented during the Duterte period, which is characterized by instability. Those in the New York Times showed a tendency be militarization- and internationalization-oriented. The method used in this study enabled us to find semantic fields within text corpora to explore political issues connected to relevant countries.

Drying kinetics and physicochemical properties of kumquat under hot air and air-impingement jet dryings

Si Tan,Yu Wang,Wenwen Fu,Yuping Luo,Shan Cheng,Wenfeng Li 한국식품과학회 2022 Food Science and Biotechnology Vol.31 No.6

Kumquat is famous for its unique flavor and nutritional value. In this study, the drying kinetics, moisture effective diffusivity, phytochemical properties, and antioxidant capacities of kumquat dried by hot air drying (HAD) and air-impingement jet drying (AIJD) were comparatively investigated. The results showed that drying rate, moisture effective diffusivity, and nutrient retention under AIJD were better than those under HAD. Fourteen polyphenols were identified by UPLC-QqQ-MS/MS in kumquat slices. The content of limonoid was significantly increased after AIJD. It was also found that high temperature contributed to a higher drying rate. However, most of the polyphenol components decreased at high drying temperatures. Accordingly, AIJD 60 °C was regarded as the optimum condition for kumquat drying. This work contributed to a better understanding of the drying character of kumquat under AIJD and showed the bioactive compounds and antioxidant activities are affected by drying methods.

An integrated biomass-derived syngas/dimethyl ether process

Tiejun Wang,Jie Chang,Yan Fu,Qi Zhang,Yuping Li 한국화학공학회 2007 Korean Journal of Chemical Engineering Vol.24 No.1

Cu-Zn-Al methanol catalyst combined with HZSM-5 was used for dimethyl ether (DME) synthesis froma biomass-derived syngas containing nitrogen. The syngas was produced by air-steam gasification of pine sawdust ina bubbling fluidized bed biomass gasifier with a dry reforming reaction over ultra-stable NiO-MgO catalyst packedin a downstream reactor for stoichiometric factor (H2, CO, CO2) adjustment. It constantly gave syngas with H2/CO ratioof 1.5 and containing trace CH4 and CO2 during a period of 150 h. The obtained N2-containing biomass-derived syngas% CO per-pass conversion and 66.7% DME selectivity could be achievedunder the condition of 533 K, 4 MPa and 1,000-4,000 h1. The maximized DME yield, 244 g DME/Kgbiomass (dry basis),was achieved under a gasification temperature of 1,073 K, ER (Equivalence Ratio) of 0.24, S/B (Steam to BiomassRatio) of 0.72 and reforming temperature of 1,023 K with the addition of 0.54 Nm3 biogas/Kgbiomass (dry basis).