• Title/Summary/Keyword: Stop

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Reinterpretation of the Perception of Place Cues in the Reduced Closure Duration of Stop Consonant Clusters (폐쇄자음군의 폐쇄구간 축소에 따른 위치성 지각에 대한 재해석)

  • 이석재
    • MALSORI
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    • no.45
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    • pp.1-14
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    • 2003
  • This paper criticizes S. Kim (1992), claiming that the perception of place cues in the reduced stop consonant clusters ('reducing' means 'cutting off' the acoustic silence in stop clusters) largely depends on the acoustic characteristics such as formant transition and noise frequency distribution of stop burst, rather than the closure duration time as advocated by S. Kim (1992). The claim is based on the perception test conducted upon 111 stimuli over 10 subjects. The finding is that, when the closure duration is cut off up to the point where only one stop is perceived, place of the second stop, not the first one, in the cluster is in most cases perceived regardless of the places of the first and second stops. It is likely that the place cues of the stop in the prevocalic position mask those in the postvocalic position.

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A Study on Electrical Characteristics Improvement on Field Stop IGBT Using Trench Gate Structure (Trench Gate를 이용한 Field Stop IGBT의 전기적 특성 분석에 관한 연구)

  • Nam, Tae-Jin;Jung, Eun-Sik;Chung, Hun-Suk;Kang, Ey-Goo
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.25 no.4
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    • pp.266-269
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    • 2012
  • The most recently IGBT (insulated gate bipolar mode transistor) devices are in the most current conduction capable devices and designed to the big switching power device. Use this number of the devices are need to high voltage and low on-state voltage drop. And then in this paper design of field stop IGBT is insert N buffer layer structure in NPT planar IGBT and optimization design of field stop IGBT and trench field stop IGBT, both devices have a comparative analysis and reflection of the electrical characteristics. As a simulation result, trench field stop IGBT is electrical characteristics better than field stop IGBT.

The phenomenological study on the Experience of the Stop-out of Korean Medicine Students (한의대생의 휴학경험에 관한 현상학적 연구)

  • An, Hyo Ja;Shin, Heon Tae
    • Journal of Society of Preventive Korean Medicine
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    • v.20 no.2
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    • pp.39-51
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    • 2016
  • Objectives : This study was to identify the stop-out experiences of Korean Medicine Students(K.M.S.). The stop-out is defined as a withdrawal temporarily from enrollment at a university. Methods : Data was collected through in-depth individual interviews from 2013 to 2016 and analyzed with Colaizzi's phenomenological methodology. The participants were interviewed once or twice, for 30minutes to 50minutes per interview. Results : Ten theme-clusters were identified from 21 themes. These theme-clusters were divided to 4 divisions as when they made the decision for the stop-out, during their stop-out period, when they went back to school and the meaning of their stop-out. 'A difficult situation to continue the study', 'Uncertainty about their decision and anxiety of the future' are 2 theme-clusters for when they made the decision for the stop-out, 'Conflict and anxiety', 'Novel and free time', 'Improving family relationship and finding new relationship' are 3 theme-clusters for during their stop-out period, 'Anxiety for the returning to school', 'New relationship and sense of relief' are 2 theme-clusters for when they went back to school, and 'Making a present for me', 'An opportunity for the emotional growth', 'Recovery of learning will' are 3 theme-clusters for the meaning of their stop-out that they gave to it. Conclusions : The stop - out of K.M.S. began at the hope that they want to take the lead for their lives. And they would find themselves more mature after the experience of their stop-out. This result could be a basic reference for the counselling of the faculty working with K.M.S.

Experimental Study on Fatigue Crack in Welded Crane Runway Girders (2) -Repair methods of Fatigue Crack- (크레인 거더의 피로균열에 관한 실험적 연구 (2) -피로균열의 보수법-)

  • Kim, Jin-Ho;Im, Sung-Woo;Chang, In-Hwa;Shiga, Atsumi
    • Journal of Korean Society of Steel Construction
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    • v.10 no.2 s.35
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    • pp.303-315
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    • 1998
  • Four types of repair procedures are applied to the fatigue cracked crane runway gilders, which are stop-holes as crack arrester stop-holes reinforced with high strength bolts, welding repair and reinforcement with high strength bolted splices. The fatgiue cracks are reinitiated at the region where stop-holes and weld repairments are applied, while none of the cracks are observed in the cases of stop-holes reinforcement and reinforcement with high strength bolted splices. When using stop-holes and hole-reinforcement all repaired regions show a same fatigue strength to the one before the repairments. The experiments also reveal that the proper weldment is an essential factor when applying the welding repairement as a properly welding produces the same level of fatigue strength after the repairement. When the situation permits to use reinforcement with high strength boilted splices, the experiments shows the repairment is the best possible method among the procedures available.

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Temporal Structures of Word-initial /s/ Plus Stop Sequences in English Words Produced by Korean Learners

  • Seo, Mi-Sun;Kim, Hee-Sung;Shin, Ji-Young;Kim, Kee-Ho
    • Speech Sciences
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    • v.13 no.1
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    • pp.43-54
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    • 2006
  • The purpose of this study is to examine temporal structures of English words beginning with an /s/ plus stop sequence through production experiments with native speakers of Korean learning English and native speakers of English. According to the results of our production experiment, both a beginner and an advanced group of Korean English learners produced /s/ shorter than a following stop, while the opposite pattern was observed in English native speakers' production. An advanced group of Korean English learners were good at producing a stop after /s/ as unaspirated, but their production of a stop following /s/ was different from English native speakers' production in that the closure duration of the stop was much longer.

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An Effective Stop-and-Wait ARQ Scheme for Variable-Euor-Rate Channels (가변 에러율 채널에 효과적인 Stop-and-Wait ARQ방식)

  • 김윤호;정두영
    • Journal of Korea Multimedia Society
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    • v.5 no.2
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    • pp.198-205
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    • 2002
  • Most studies of the ARQ schemes are conducted under the limited error rate of a fairly stationary channel. In nonstationary channel, error rates vary considerably and variety of error rate is wide. This paper proposes an effective Stop-and-Wait ARQ scheme which estimates the channel state in a simple manner based on the received acknowledgement messages, and can adaptively switch its operation mode in a channel where error rates vary slowly. It provides higher throughput than other comparable Stop-and-Wait ARQ schemes under a wide variety of error rate conditions.

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A Study on the performance Improvement of the Adaptive Blind Equalizer Using the Soft Decision-Directed Stop-and-Go Algorithm (연판정지향 Stop-and-Go 알고리즘을 이용한 적응 블라인드 등화기의 성능 향상에 관한 연구)

  • 정영화
    • The Journal of Information Technology
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    • v.2 no.1
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    • pp.103-113
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    • 1999
  • In this paper, we propose th soft decision-directed sto-and-go algorithm combining a concept of the stop-and-go algorithm with soft decision-directed algorithm. The proposed algorithm has an enhanced equalization performance according to using the more confidential error signal than two algorithms. By computer simulation, it is confirmed that the proposed algorithm has the performance superiority in terms of residual ISI and convergence speed compared with the adaptive blind equalization algorithm of CMA, Modified CMA(MCMA), Stop-and Go algorithm and simplified 50ft decision-directed algorithm.

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Aspects of the word-final stop releasing and its phonetic correlates in reading the English isolated words enumerated (영어 나열형 고립 단어 읽기에서 어말 폐쇄음의 파열 양상 및 그 음성적 상관성)

  • Rhee Seok-Chae;Kang Sooha;Park Jihyun;Hwang Sunmin
    • Proceedings of the KSPS conference
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    • 2003.05a
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    • pp.61-68
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    • 2003
  • This experimental research shows that, in reading of the English isolated words that are enumerated, the releasing of the word-final stop is employed for signaling enumeration in company with the well-known intonational pattern for it. Furthermore, this study tries to find the conceivable phonetic correlates of the releasing of the stop in word-final position, focusing on the association of the stop releasing/nonreleasing with i) the POA (Place of Articulation) distinction of the word-final stop, ii) the various qualities of the preceding vowel placed before the final stop, and iii) the voice distinction of the stop in the word-final position.

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A Study of Novel Stop-&-Go Equalization Using Bank Structure (Bank 구조를 이용한 Novel STOP-&-GO)

  • 조경철;강영창김선형
    • Proceedings of the IEEK Conference
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    • 1998.10a
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    • pp.1195-1198
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    • 1998
  • A Novel Stop-&-Go Algorithm which incorporate a Bank structure for blind equalization is investigated in this paper. 16-QAM and $\pi/4-DQPSK$ modulation used in this paper. A Proposed novel algorithm of characteristic is high speed transfer by implementation of the equalization algorithm with less computations capacity. The computer simulations result reveal that the proposed Novel Stop-&-Go shows the comparable performance to the conventional Stop-&-Go, while requiring much less computations.

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STOP AND GO CRUISE CONTROL

  • Venhovens, P.;Naab, K.;Adiprasito. B.
    • International Journal of Automotive Technology
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    • v.1 no.2
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    • pp.61-69
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    • 2000
  • This paper will address the basic requirements for realizing a stop and go cruise control system. Issues discussed comprise: functional, sensor and basic HMI requirements, primary characterization of naturalistic stop & go driving, and the basic approach of the transformation of situational knowledge in an elementary controller.

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