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English Causative Alternation and Its Acquisition
Incheol Choi 현대문법학회 2011 현대문법연구 Vol.64 No.-
Incheol Choi. 2011. English Causative Alternation and its acquisition by Korean learners. Studies in Modern Grammar 64, 183-210. This paper, building on the result of the corpus study in Choi (2010), reveals that Koran learners rarely overgeneralize the English causative alternation rule and it is mainly due to the lexical conservatism in the sense of Baker (1979). In addition, this paper suggests that Korean learners' acquisition process of the phenomenon is influenced by markedness relation coming from the universal semantic properties and Korean verbal morphological system. To support these conclusions, a grammaticality judgement test and a two-alternative forced choice test were carried out.
An Investigation of Korean EFL Learners’ Grammar of English BE: A Corpus-Based Study
Incheol Choi,Daria Soon-Young Seog 현대문법학회 2021 현대문법연구 Vol.112 No.-
The current study investigates the excessive use of BE by young Korean EFL learners for insights into their L2 English grammar construction. The findings reveal that the young Korean EFL learners’ interlanguage grammar of the English BE is not limited to L1 transfer effects but also associated with the developmental processes in the acquisition of the English language. Although be-insertion errors are caused by the conspiracy of various reasons, they trigger the appearance of inflectional category and eventually become the medium for the fully developed inflectional category.
English Agreement Revisited: A Constraint-Based Approach without Syncretism
Incheol Choi 현대문법학회 2021 현대문법연구 Vol.111 No.-
Although agreement has been treated as a rudimentary phenomenon in English syntax, this paper raises questions on the traditional conventions. Following the HPSG tradition, this paper suggests that subject-verb agreement involves referential indices whereas the determiner-noun concord involves a morpho-syntactic number feature. However, in this paper, the feature is treated as a medium between morphological signal and semantic interpretation. In addition, it shows evidence that words without overt morphological indication are exempt from the agreement requirement pace the tradition, syncretism. The theoretical basis for the analysis is HPSG-based constructional grammar, and it is shown that its feature structure regime well embraces the suggestion in this paper.
A constraint-based approach to Icelandic case system
Incheol Choi 경희대학교 언어정보연구소 2012 언어연구 Vol.29 No.3
Across languages, cases function as the most important coding features. However, Icelandic does not easily reveal the function of case system. It is mainly due to the fact that grammatical relation-based case system is interwoven with lexical quirky cases. Throughout this paper, I suggest that the ordinary default case system is dependent on the aspectual properties of the head verb (cf. Burzio’s Generalization). In addition, the information of lexical quirky cases overrides the default case-requirement. This cancellation process does not resort to the non-monotonic value cancelation. Instead, adopting configuration-based case realization approach in Kim and Choi (2004), I show that the core case assignment coincides with phrasal structure realization. The proposed analysis provides a performance-compatible description of the Icelandic case system without cyclic application of rules that destructively modifies the initial value.
The Noun Phrase Accessibility Hierarchy and Second Language Acquisition : Corpus Analyses
Incheol Choi,Jeongim Kim 한국영미어문학회 2009 영미어문학 Vol.- No.92
Among second language acquisition researchers, it has been widely accepted that the difficulty of relative clause acquisition is predictable on the basis of the noun phrase accessibility hierarchy(NPAH; Keenan and Comrie 1997). A variety of experimental evidence shows that second language learners conform to the NPAH. However, what those experiments show us most clearly is that the performance of learners mainly linked to the processing difficulty of relative clauses although the interpretation such researches varies. Our corpus analyses first show that NPAH effects are at least in part caused by the skewness of input among relative clauses. Second, Korean young learners not only perform better in subject relative clauses than in object relative clauses, but also acquire subject relative clauses earlier than object relative clauses.
Honorific Information Sharing in Korean Verbal Coordination
Incheol Choi 경희대학교 언어연구소 2004 언어연구 Vol.20 No.-
Korean honorific agreement is pragmatically constrained, requiring the consistency of honorific information between the subject and the head verb. However, the verbal honorific affix -si is often optional in non-final conjuncts of verbal coordination constructions. Taking a lexicalist view (HPSG, Pollard & Sag 1994), this paper suggests that the optionality of honorific markers in non-final conjuncts is explained by the sharing of feature structures containing honorific information between two conjuncts.
김인철(Incheol Kim),박지훈(Jihoon Park),최혜원(Hyewon Choi),이종배(Jongbae Lee),최현준(Hyeonjoon Choi) 한국신재생에너지학회 2021 한국신재생에너지학회 학술대회논문집 Vol.2021 No.7
gravitational vortex hydropower(GVHP)는 소용돌이 흐름에서 사용 가능한 에너지를 활용하여 발전하는 방식이며, 회전속도가 가장 빠른 중앙에 터빈을 배치하여 흐름과 함께 회전하여 발전한다. 현재 해외에서는 많은 연구가 진행되고 있으며, 국내에서 국가 과제를 통한 개발사례 또한 있다. Vladimir J.는 GVHP 발전 방식은 비용 중에 인건비가 가장 많이 들어갈 정도로 다른 저낙차에 비해 발전단가가 낮아 개발도상국 안에서 만들고 설치하는 것이 유리하다고 이야기를 하고 있다. 하지만 발전 RPM이 45~50 RPM에서 발전을 하기 때문에 기어박스에 대한 것을 고려하여야 하며, 다른 저낙차 터빈에 비해 효율이 떨어지는 문제점을 지적하였다. 현재 GVHP 방식의 발전은 아직 연구개발을 여지가 남아 기존 형식과 다른 유동장과 터빈을 통하여 성능곡선을 나타내었다.