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RISS 인기검색어
- 검색키워드
- 저자 : Oshikiri, Masayuki (검색결과 2 건)
- 무료
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Vocabulary Analyzer Based on CEFR-J Wordlist for Self-Reflection (VACSR) Version 2
Yukiko Ohashi,Noriaki Katagiri,Takao Oshikiri Institute for Corpus Research 2023 Asia pacific journal of corpus research Vol.4 No.2
This paper presents a revised version of the vocabulary analyzer for self-reflection (VACSR), called VACSR v.2.0. The initial version of the VACSR automatically analyzes the occurrences and the level of vocabulary items in the transcribed texts, indicating the frequency, the unused vocabulary items, and those not belonging to either scale. However, it overlooked words with multiple parts of speech due to their identical headword representations. It also needed to provide more explanatory result tables from different corpora. VACSR v.2.0 overcomes the limitations of its predecessor. First, unlike VACSR v.1, VACSR v.2.0 distinguishes words that are different parts of speech by syntactic parsing using Stanza, an open-source Python library. It enables the categorization of the same lexical items with multiple parts of speech. Second, VACSR v.2.0 overcomes the limited clarity of VACSR v.1 by providing precise result output tables. The updated software compares the occurrence of vocabulary items included in classroom corpora for each level of the Common European Framework of Reference-Japan (CEFR-J) wordlist. A pilot study utilizing VACSR v.2.0 showed that, after converting two English classes taught by a preservice English teacher into corpora, the headwords used mostly corresponded to CEFR-J level A1. In practice, VACSR v.2.0 will promote users' reflection on their vocabulary usage and can be applied to teacher training.
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Suwa, Tomone,Nabara, Yoshihiro,Ozeki, Hidemasa,Hemmi, Tsutomu,Isono, Takaaki,Takahashi, Yoshikazu,Kawano, Katsumi,Oshikiri, Masayuki,Tsutsumi, Fumiaki,Shibutani, Kazuyuki,Nunoya, Yoshihiko,Okuno, Kiyo Institute of Electrical and Electronics Engineers 2015 IEEE transactions on applied superconductivity Vol.25 No.3
<P>Japan Atomic Energy Agency (JAEA) is procuring 100% of the ITER Central Solenoid (CS) conductors. The CS conductor is required to maintain the performance under 60000 pulsed electromagnetic cycles. JAEA tested two internal-tin Nb<SUB>3</SUB>Sn conductors for the CS at the SULTAN test facility. As a result of destructive examination, the twist pitches of both of the cables satisfied requirements of the ITER Organization (IO). The current sharing temperatures T<SUB>cs</SUB> of each sample were 6.6 and 6.8 K before cyclic operation, and the T<SUB>cs</SUB> values were 6.8 and 6.9 K after 9700 electromagnetic cycles, including three warm-up/cooldowns, respectively. The T<SUB>cs</SUB> performance of both samples satisfied the IO requirement. The ac losses of CSKO1-C and CSKO1-D were approximately half of typical bronze-route CS conductors at 2 and 9 T. The ac loss at 45.1 kA after the cycling was 1.5 times higher than that without the transport current. An almost constant strain of the jacket was observed after the test as a result of the residual strain measurement. Therefore, the deformation of the cable might have been homogeneous along the conductor axis. Because of the higher T<SUB>cs</SUB> of CSKO1-D than CSKO1-C, JAEA started the manufacturing of the CS conductor with the same specification as CSKO1-D.</P>
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