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A Multifactorial Analysis of Can and May in Korean EFL Learners Writings
윤태진(TaeJin Yoon),이용훈(Yonghun Lee) 한국영어학학회 2016 영어학연구 Vol.22 No.1
It is well known that can and may have similar meanings and that the choice of the modal auxiliary in the English sentences is not arbitrary in native speakers' writings. This paper compares the distributions of these two modal auxiliaries in the EFL learners' writings with those of native speakers and examines which factor made the Korean EFL learners' writings non-native. For this purpose, this study took the Competition Model (CM; Bates and MacWhitney, 1982, 1989) as a theoretical framework. We used two corpora (the Korean component of TOEFL11 corpus and the ICE-USA) and extracted all the sentences with can and may. Then, twenty factors were encoded in the extracted sentences, which were subsequently analyzed with R. The encoded data were statistically analyzed with (binary) logistic regression and Behavioral Profile. Through the analysis, the following facts were observed: (i) the uses and distributions of can and may in the Korean EFL learners' writings are similar to those of (American) native speakers' counterpart, (ii) three factors (SubjMorph, SubjPers, and Mood) make the Korean EFL learners' English non-native, and (iii) the L1 effects were also observed in spite of similarities in the use of the modal auxiliaries between Korean learners of English and native speakers of American English.
박호일(Hoil Park),엄상봉(Sangbong Eom),황준영(Junyoung Hwang),윤태진(Taejin Yoon) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
A noise map has been developed for globally analyzing special noises radiating from automotive turbochargers. This map could be obtained by replacing the efficiency with noise data in a compressor performance map. The characteristics of a special noise could be easily understood from it since the noise distribution was shown on their operating area. Turbochargers were generally operated under constant speeds for measuring their performance. This paper compared two additional operation modes to the constant speed for the noise map. First, it was operated for almost constant volumetric flow rates in a compressor. Second, it was done for constant pressure ratios. In addition, it was investigated how the maps would be changed by the different sweeping times of surge-to-choke at the constant speeds, 1/2 and 1/4 times of the reference period.