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- 저자 : 홍지숙 ( Ji Sook Hong ) (검색결과 33 건)
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초등 저학년 인공와우이식(CI) 아동의 대화차례 주고받기 특성
홍지숙(Ji Sook Hong),허현숙(Hyunsook, Heo),이윤경(Yoon Kyoung Lee) 한국언어치료학회 2012 언어치료연구 Vol.21 No.2
The aim of this study was to investigate the turn-taking characteristics of children with cochlear implants (CI). Ten children with CI, 10 typically- developing children chronologically age-matched with CI children (CA), and 10 participated in this study. Conversational samples were elicited by the examiner during a 30-minute free conversation and then 10-minute conversational samples were analysed. Total turn-taking frequency and rate of initiation, response, and disruption were measured according to adequacy. The research findings were as follows; (1) CI children produced significantly lower conversational turn-taking rates and higher conversational turn-taking rates than CA and LA controls. (2) CI children revealed significantly lower rates of total and appropriate initiation than CA controls. (3) CI children showed significantly lower rates of total and appropriate responses, but a higher rate of inappropriate responses than LA controls. (4) CI children produced significantly more differed responses than CA and LA controls. The results of this study help us to understand the conversational characteristics of CI children and will be useful for assessing and intervening in their conversation abilities.
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코팅 방법에 따른 SnO<sub>2</sub>/Ti 전극의 제조 및 전기화학적 특성
김한주,손원근,홍지숙,김태일,박수길,Kim Han-Joo,Son Won-Keun,Hong Ji-Sook,Kim Tae-Il,Park Soo-Gil 한국전기화학회 2006 한국전기화학회지 Vol.9 No.2
The study is coated tin(IV) oxide coated on the titanium substrate electrodes by electrodepositon and dip-coating method and studied about that physical and electrochemical characterization by coating methods. After titanium substrate is etched in HCl, electrodespotion is coated $SnCl_2{\cdot}2H_2O$ in nitrate solution by pulse technique, dip-coating method is also used $SnCl_2{\cdot}2H_2O$ in 1;1V% HCl and coated by dipping and annealing process. tin(IV) oxide coated on titanium substrate electrodes by two coating methods are studied x-ray diffraction (XRD), scanning electron microscopy (SEM) to compare physical characterization of electrode and potential window by cyclic voltammetry (CV) to observe electrochemical characterization.
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우훈희 ( Hoon Hee Woo ),홍지숙 ( Ji Sook Hong ),서정권 ( Jeong Kwon Suh ),이관영 ( Kwan Young Lee ),이정민 ( Jung Min Lee ) 한국공업화학회 2002 응용화학 Vol.6 No.2
In order to seek optimum conditions for ZSM-5 formation in the absence of organic template,the effects of both starting composition and water glass as silica source were examined. Water glass was most inexpensive among silica sources, but this was difficulty in reactant control because of contained much alkali ingredient, Considering environmental problem and economic performance,chose alkali drawing-out method to use methanol newly to remove alkali ingredient of waterglass. Characterization of ZSM-5 was carried out by means of XRD, SEM.
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서정권 ( Jeong Kwon Suh ),홍지숙 ( Ji Sook Hong ),이창하 ( Chang Ha Lee ),이정민 ( Jung Min Lee ) 한국공업화학회 2003 공업화학 Vol.14 No.2
Zeolite X/activated carbon composite (zeocarbon) was synthesized from rice hulls. The adsorption equilibrium of H_2O on zeocarbon was compared with that of zeolite 13X, Langmuir-Freundlich, Excess Surface Work (ESW) and Multi-BET isotherm models were used to fit the experimental data of H_2O adsorption on zeocarbon and zeolite 13X. In the case of zeocarbon, the minimum error of 1.39% resulted when the Langmuir-Freundlich model was applied at 313.15 K. In the cases of Multi-BET and ESW models, the minimum errors were 2.29% and 0.47% at 131.15 K and 353.15 K, respectively. In the case of zeolite 13X, the minimum error was 0.10% at 0.68%, at 313.15 K and 353.15 K, respectively. ESW model was found to be in better agreement with the experimental values than Langmuir-Freundlich model or Multi-BET model. Considering that monolayer adsorption occurs in low-pressure region, while the capillary condensation phenomenon prevails in high-pressure region, ESW model fitted well under all the temperature and pressure conditions.
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