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원격 음운변동중재가 읽기부진학생의 단어인지와 읽기유창성에 미치는 효과
권민영,고선희 공주대학교 특수교육연구소 2024 특수교육논집 Vol.29 No.1
Purpose: Communication technology and electronic devices are developing rapidly, and as many students have experienced remote education since COVID-19, the interest in the necessity and effects of telepractice has also grown in the field of speech-language pathology. Accordingly, this study aimed to investigate the effectiveness of telepractice for poor readers. Method: The subjects of the study were three 2nd-3rd grade students with poor reading. They were able to read words using the phonics principle but had difficulty reading words adapted to phonological processes. For these subjects, phonological processing intervention was conducted for 4 types of 7 coda rule, lenition, tensification, and aspiration. Both intervention and evaluation were conducted remotely using ZOOM. An intermittent multiple baseline design was applied to determine whether remote phonological processing intervention had a positive effect on the word identification of poor readers, and a pre-post design was applied to confirm improvements in reading fluency. Results: Results indicate that, following remote phonological processing intervention, all students demonstrated improvements in word identification scores compared to the baseline. Furthermore, their reading fluency scores exhibited enhancement in the post-test compared to the pre-test. Conclusion: In conclusion, the study demonstrates the effectiveness of remote phonological processing intervention for poor readers. We explored models and directions for future telepractice.
집행적 작업기능이 외인성 및 내인성 주의에 미치는 영향
권민영,김민식 한국인지및생물심리학회 2004 한국심리학회지 인지 및 생물 Vol.16 No.4
Three experiments were conducted to examine whether and how executive working memory(WM) can influence the allocation of spatial attention in exogenous and endogenous cuing tasks. All the experiments involved executive WM tasks that required counting backward from a randomly selected three-digit number and spatial cuing tasks in which peripheral cues with or without predictability or central cues were presented. The results showed that when the spatial cue did not predict the location of a target, as in Experiment 1, the executive function of working memory reduced the peripheral cueing effect. However, when the spatial cue could predict the location of a target in Experiment 2, the peripheral cueing effect was not affected by the executive function of working memory. Moreover, in Experiment 3 the manipulation process of working memory did not change the central cueing effect. These results suggested that executive functions of WM such as manipulating information might affect exogenous and endogenous attention process differently. 주변단서와 중심단서를 사용한 전통적인 공간주의 과제에서 집행적 작업기억의 정보 조작(manipulation) 과정이 외인성 및 내인성 주의에 미치는 영향을 3개의 실험을 통하여 알아보았다. 모든 실험에서 정보의 조작이 필요한 작업기억 과제로서 역행 숫자 빼기 과제를 사용하였으며, 외인성 및 내인성 주의의 조작은 공간단서 패러다임을 사용하여 주변단서의 예언가(predictability)를 조작하거나 혹은 중심단서를 사용하였다. 실험 1에서는 역행 숫자 빼기 과제를 하는 동안 예언가가 없는 주변 단서 효과를 관찰하였고, 실험 2에서는 주변 단서가 표적의 위치에 나타날 확률을 증가시켜 역행 숫자 빼기 과제를 하는 동안 주변 단서 효과를 측정하였으며, 실험 3에서는 역행 숫자 빼기 과제를 하는 동안 예언가가 높은 중심 단서 효과를 측정하였다. 실험 결과, 실험 1에서 단서가 표적의 위치를 잘 예측하지 못할 때 작업기억의 집행기능의 부하는 주변 단서 효과에 부적 영향을 미치지만 실험 2와 3에서와 같이 주변 단서나 중심 단서가 표적의 위치를 잘 예측할 때는 작업기억의 집행기능의 부하가 단서 효과에 거의 영향을 미치지 않았다. 이러한 실험 결과는 작업기억의 요소 중에 정보의 조작과 같은 집행기능이 내인성 주의와 외인성 주의과정에 차별적인 효과를 미칠 수 있음을 시사한다.
권민영,우수영 한국산림과학회 2015 Forest Science And Technology Vol.11 No.4
This experiment was conducted to investigate the effect of interaction between water and light on growth and cell structure in Ulmus pumila L. One-year-old seedlings grown in a greenhouse at the University of Seoul were used in this study. Ulmus pumila seedlings were subjected to three light treatments, full sunlight (HI), 30% of full sunlight (MI), 10% of full sunlight (LI) and under well watered (WW) and water stressed (WS) conditions. Following reduction of irradiance, thinner leaf thickness could be examined by light microscopy. In HI leaf thickness increased due to larger palisade and spongy parenchyma cells. This study suggests that leaf tissue morphological characteristics was affected by light but not water conditions.
한국어 화자에 의한 영어 모음 간 설측음의 /l/-doubling 현상
권민영 한국중앙영어영문학회 2022 영어영문학연구 Vol.64 No.3
This study discusses the English intervocalic /l/ spoken by Korean speakers phonetically and phonologically. This phonetic investigation is conducted to compare the acoustic features of the English intervocalic /l/ by English and Korean speakers. The results are summarized as follows. First, English speakers produced the English intervocalic /l/ as a single [l] whether English spelling is l or ll, whereas Korean speakers pronounced the English intervocalic /l/ as a geminate, or a double [ll]. Second, the formant values of the English intervocalic /l/ by English speakers had a similar tendency to those by Korean speakers. However, Korean speakers pronounced the English intervocalic /l/ before the vowel [ɪ,i] as palatal [ʎ]. This phonetic phenomenon is analyzed phonologically in accordance with Kim (1997)’s suggestion and Clements and Hume (1995)’s feature spreading. Hearing the intervocalic clear /l/ by English speakers, Korean speakers parse the clear /l/ into the available position, coda, inserting an empty C in subsequent syllable-onset. And then, the features of preceding /l/ in coda spread to the empty C slot, implementing a double [ll]. Still, if vowel [ɪ,i] follows the /l/ in the syllable onset, the /l/ is supplied with [-anterior] of the coronal node of vowel [i] and changed into another variant, palatal [ʎʎ].
Biofilm formation of Bacillus cereus under food-processing-related conditions
권민영,Mohammad Shakhawat Hussain,오덕환 한국식품과학회 2017 Food Science and Biotechnology Vol.26 No.4
This study aims to understand the biofilm formation abilities of eight Bacillus cereus strains under foodindustry- related conditions. Biofilms were grown in microtiter plates in tryptic soy broth (TSB) or brain heart infusion (BHI) at 30 C for 24 or 48 h and quantified via the crystal violet assay. A significantly larger of biofilm was formed in TSB than in BHI after 48 h. Selected strains were used to test biofilm formation under food-related conditions produced by different surfaces (e.g., stainless steel, plastic, or glass), temperatures (25 or 30 C), carbon sources, (glucose or glycerol) and NaCl. Biofilm formation appeared to be affected by surface properties, temperature, and carbon sources. A larger biofilm was formed on stainless steel at 30 C compared to plastic and glass surfaces at 25 and 30 C. Moreover, addition of glucose in combination with NaCl in TSB produced significantly larger biofilm than glucose, glycerol and/or NaCl. These results indicate that food-industry-related conditions could promote B. cereus biofilm formation, which is relevant to food safety.
교통카드데이터를 활용한 교통약자 대중교통 환승통행패턴 분석: 버스 지하철 간 환승을 중심으로
권민영,김영찬,구지선,Kwon, Min young,Kim, Young chan,Ku, Ji sun 한국ITS학회 2021 한국ITS학회논문지 Vol.20 No.2
전 세계적으로 고령인구가 급증하고 이에 따라 이동에 불편을 겪는 교통약자의 수도 증가하고 있다. 이러한 추세에 따라 국내에서는 이동편의시설 설치 확대 등 교통약자에 대한 양질의 대중교통 서비스 제공을 위해 다양한 정책을 시행 중이다. 기존 대중교통 이동편의시설 설치는 역사의 면적, 층수, 시설 미확보역 등의 양적인 측면을 기준으로 우선적 확대·설치되고 있다. 하지만 양적 기준 보다는 실제 이용자 기준의 설치 필요 지역에 이동편의시설을 확보하는 것이 교통약자의 이동편의 증진에 더 효과적일 것으로 사료된다. 본 연구에서는 이용자 기반의 교통카드 빅데이터 분석을 통해 교통약자의 환승취약지점을 도출하고자 했다. 스마트카드 거래내역 데이터를 가공하여 환승통행데이터를 구축하고 이용자별 환승통행패턴 분석 및 환승통행시간 차이가 큰 경로를 기준으로 환승취약지점을 도출했다. 분석 결과 일반 이용자보다 교통약자의 환승시간이 오래 걸리는 것으로 나타났다. 일반과 교통약자의 환승통행시간 차이와 시설물 개수와의 상관관계는 미약한 것으로 나타났는데 현장 조사 결과 환승통행시간 차이는 시설물의 단순 개수보다는 해당 환승최단경로 내 이동편의시설의 부재로 인해 발생하는 것으로 나타났다. 향후 교통약자를 위한 이동편의시설 확대 시 실질적 이용자 기반 데이터 분석을 통한 환승취약지점을 기준으로 우선적 시설 확보 시 교통약자의 이동편의가 보다 더 향상될 것으로 사료된다. The number of elderly people worldwide is rapidly increasing and the mobility handicapped suffering from inconvenient public transportation service is also increasing. In Korea and abroad, various policies are being implemented to provide high-quality transportation services for the mobility handicapped, and budget support and investment related to mobility facilities are being expanded. The mobility handicapped spends more time for transit transfer than normal users and their satisfaction with transit service is also lower. There exist transfer inconvenience points of the mobility handicapped due to various factors such as long transfer distances, absence of transportation facilities like elevators, escalators, etc. The purpose of this study is to find transfer inconvenience points for convenient transit transfer of the mobility handicapped using Smart card Big data. This study process traffic card transaction data and construct transfer travel data by user groups using smart card big data and analysis of the transfer characteristics for each user group ; normal, children, elderly, etc. Finally, find transfer inconveniences points by comparing transfer patterns between normal users and the mobility handicapped. This study is significant in that it can find transfer inconvenience points for convenient transit transfer of the mobility handicapped using Smart card Big data. In addition, it can be applicated of Smart card Big data for developing public transportation polices in the future. It is expected that the result of this study be used to improve the accessibility of transit transportation for mobility handicapped.