• 한국생활과학회지
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• 제23권6호
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• pp.1127-1140
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• 2014

The purpose of this study was to explore the effects of father's socio-demographic variables and father's literacy beliefs on father's literacy interaction. Participants were 204 fathers who have children in 3 to 5 years of age. Data were analyzed by descriptive statistics, correlation analysis and stepwise multiple regression analysis. The findings are summarized as follows: (1) Father's education level was generally correlated with 'father role efficiency', 'open interaction', 'picture-book reading interaction' (2) Monthly income of the household was related 'father role efficiency', 'positive feelings on reading books'. (3) 'Literacy ability development from books', 'father role efficiency', 'positive feeling on reading books' were correlated 'open interaction' and 'picture book reading'. But, 'literacy ability development from books', 'father role efficiency', 'positive feeling on reading books' were negatively correlated 'direct interaction'. (4) The most influential factor on father's 'open interaction', 'direct interaction' was 'literacy ability development from books'. The most influential factor on father's 'picture-book reading' was 'positive feeling on reading books'. These findings highlight that 'literacy ability development from books' and 'positive feeling on reading books' may play critical roles in father's literacy interaction. So, it is very important that adequate training and support on father's literacy beliefs for father's high quality literacy interaction.

• 한국산업보건학회지
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• 제33권2호
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• pp.93-102
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• 2023

Objectives: With the evolution of direct reading sensors, it is possible to monitor several substances through telecommunication. However, there are some limitations on the use of direct reading technologies in the Occupational Safety and Health Act in South Korea, which only applies to detector tubes, noise, heat, and carbon monoxides. The number of chemicals and their amount of use have been continuously increasing in South Korea. The Ministry of Employment and Labor (MoEL) has concerns about worker's health because exposure is only covered for about 1.2% of all distributed chemicals. Using a direct reading monitor with photoionization detectors (PID-DRMs), gases and vapors chemicals can be measured. Based on the data, business owners are able to create corrective strategies, provide better working routines, and select correct respiratory equipment. PID-DRMs are less expensive and easier to handle for an owner voluntarily controlling chemicals emitted in the workplace. However, there are several limitations on using these PID-DRMs to the degree that the MoEL has not been able to select a legal monitor. The aim of this study was to review previous studies related to PID-DRMs and identify the characterization and limitation on PID-DRMs. Methods: To search for related studies on PID-DRMs, key words were used including direct reading monitors/instruments and/or photoionization detectors. Through that, four domestic and 15 international studies were reviewed. Results: Studies on PID-DRMs were conducted by chamber (enclosed, dynamic, walk-in) and in the field (experimental environment, actual environment). The concentration of PID-DRMs and charcoal tubes were compared for a single substance or mixture, or within the PID-DRMs. There was a high correlation between the two concentrations, but it did not meet the accuracy criteria (95% confidence interval, within 25%) of the NIOSH technical report (2012). In addition, differences in measured values occurred according to environmental factors (temperature, humidity) and high concentration, and concentration values tended to be underestimated due to contamination of the sensor. As a way to improve the accuracy of PID concentration, it was proposed to use correction factors, charcoal tube-based correction factors, or to calibrate the PID-DRMs in the same environment as the workplace. Conclusions: PID-DRMs can likely be used by business owners for the purpose of voluntarily managing the workplace environment, and it is expected that it will be possible to use them as legal equipment if a PID sensor can be upgraded and the limitations of the sensor (temperature, humidity, high concentration evaluation, sensor pollution) can be overcome in the near future.

• 음성과학
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• 제10권2호
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• pp.27-33
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• 2003

Bimodal speech recognition based on lip reading has been studied as a representative method of speech recognition under noisy environments. There are three integration methods of speech and lip modalities as like direct identification, separate identification and dominant recording. In this paper we evaluate the robustness of lip reading methods under the assumption that lip parameters are estimated with errors. We show that the dominant recording approach is more robust than other methods through lip reading experiments.

• 한국어교육
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• 제29권4호
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• pp.201-223
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• 2018

The purpose of this study is to observe the effects of text modification by comparing differences in Korean reading comprehension levels that arise from differences in vocabulary levels in texts. This study intends to use simplified texts with the vocabulary difficulty adjusted differently from the original text to measure reading comprehension levels of Korean learners and analyze the result. To measure reading comprehension, the researcher divided 55 Korean learners of intermediate to advanced level of fluency into two groups; the control group read the original text and the treatment group read a simplified text in which complex vocabulary were substituted with easier words of medium difficulty. Then the two groups were tested with the same questionnaire to measure comprehension levels of each group. The result showed that the groups that read simplified texts scored higher than the control group; this suggests that the reading comprehension level was increased in the treatment group. The experiment confirmed that unknown vocabulary density has direct impact on Korean reading comprehension. The result shows that the proportion of unknown vocabulary should be reduced for meaning-focused reading. It also demonstrates that comprehension of the learner was enhanced with lexical simplification rather than structural simplification i.e. simplification of grammar or sentences. Thus, diverse reading materials adjusted to the learners' level of fluency should be developed to enable reading for learning Korean. By reducing the burden of understanding the meaning of each vocabulary, learners will be able to achieve the initial goal of reading.

• 아동학회지
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• 제33권6호
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• pp.109-131
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• 2012

The purpose of this study was to investigate the effects of the home literacy environment, mother's literacy belief and parenting efficacy in terms of the interaction which occurs during reading picture books between mothers and preschoolers. Questionnaires from 378 5-year-olds' mothers in Seoul and Kyunggi province were analysed. The findings from the validated structural equation model constructed with these variables were as follows. First, the home literacy environment, the mother's literacy beliefs and the mother's general parenting efficacy affected the quantity, and the quality of interaction whilst reading books with preschoolers. Second, the mother's efficacy in education and communication had a direct impact on the quantity of the interaction during reading books through the mediation of the home literacy environment, and had an indirect effect on the quality of the interaction whilst reading books, respectively. Third, the mother's efficacy in communication directly accounted for the quality of the interaction which occurs whilst reading books with children.

• 한국문헌정보학회지
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• 제55권1호
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• pp.59-83
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• 2021

이 연구의 목적은 지난 2006년부터 2020년까지 15년간 23회 진행된 '책 읽는 청주' 지역사회 독서운동의 현황 및 문제점을 분석하고, 개선 방안을 제안하는 것이다. 특히 '책 읽는 청주'의 책 선정기준, 실제 선정 책 31권의 특성 및 독서토론에 초점을 맞추어 분석한 결과, '책 읽는 청주'는 지속성과 안정성이라는 강점을 갖지만, 책 선정기준 변경의 타당성 부족, 연령별 선정 책의 분산, 책들의 주제적 일관성 결여, 가시적 및 대중적 베스트셀러의 선호 경향, 개별 참여자의 지속성 확인 곤란, 사서의 기획자 역할 집중으로 직접적 토론과 소통 제한, 관 주도형 행사 진행 등은 개선이 필요한 것으로 나타났다.

• 영어어문교육
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• 제17권4호
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• pp.75-95
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• 2011

The purpose of this study was to evaluate a group activity, reciprocal peer tutoring (RPT), in order to investigate advantages and challenges of RPT in promoting cooperative and collaborative learning environment for EFL University reading instruction. The participants in this study were 89 students taking an English reading course at a Korean university. RPT is a learning strategy whereby learners help each other and learn by teaching. This program was supported by a Vygotskyan perspective which assumes that learners gain mastery and develop cognitive skills through social interaction with more proficient others and their environment. This study relied particularly on participant perceptions through questionnaire survey and Anonymous Online class Report of the course. This study showed various advantages for tutors such as learning through teaching and becoming more autonomous and responsible for their own learning. Non-threatening and highly motivating learning atmosphere are parts of benefits for tutees. Other advantages for tutees included improved level of academic self-confidence, and motivation. This study also revealed several drawbacks associated with the problem of inaccuracy in students' production and students' demand for more direct teacher role. (182 words).

• 대한디지털의료영상학회논문지
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• 제12권2호
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• pp.89-95
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• 2010

High contrast and high resolution are the most important factors for examining mammography images. Despite of the inconveniences of screen-film, most clinics still prefer them to computed radiography(CR) and direct radiography(DR). The reading of screen-film mammography images is influenced by the brightness from the X-ray illuminator, the exam room and incoming light from outside sources. Therefore, a comparative analysis on the results of mammo phantom images would be variated by the changes in the reading environment. There was no influence on reading results from the examiners close distance eyesight(p > 0.05); however, reading of micro lesions improved with greater darkness in the X-ray film reading room and the brightness of the X-ray illuminator(p < 0.05). Also, observation of fiber and mass images were maximized at a distance of 50 cm from the reader. Now, it is possible to observe these small classification groups using a magnifying glass without being physically close to the image. For the image of mammography, obtaining high quality images is important but in order to get an accurate clinical lesions of the reading also needs to be considered the optimal environmental factors.

• 한국도서관정보학회지
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• 제45권1호
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• pp.125-147
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• 2014

본 연구의 목적은 학교도서관에서 읽기와 쓰기를 통합 지도 할 수 있는 학습독서 전략을 개발하여 제안하는 것이다. 읽기와 쓰기 전략은 인지과정에 기반을 둔 절차와 관련된 간접전략과, 절차의 성공적 수행을 도와주는 직접전략으로 나눌 수 있다. 따라서 읽기와 쓰기를 통합한 학습독서 전략을 교수설계모형에 해당하는 간접전략과 모형의 각 단계별 구체적인 실행 방안을 담은 직접전략으로 구성하였다. 본 연구에서는 학습독서가 프로그램 형태로 운영될 수 있는 상황을 고려하여 간접전략인 기본 모형을 준비-설계-운영-평가와 같이 4단계로 설정하였다. 그리고 읽기와 쓰기를 통합 지도하는 학습독서 운영 단계는 '주제정하기-목차쓰기-탐구하기-집필하기-수정하기-출판하기'와 같이 6단계로 구성하였다. 또한 각 운영 단계별로 읽기와 쓰기 활동을 구체적으로 도와줄 수 있는 직접전략을 제시하였다.

• 한국CDE학회논문집
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• 제8권2호
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• pp.65-74
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• 2003

For virtual reality, virtual manufacturing system, or simulation based design, we need to visualize very large and complex 3D models which are comprising of very large number of polygons. To overcome the limited hardware performance and to attain smooth realtime visualization, there have been many researches about algorithms which reduce the number of polygons to be processed by graphics hardware. One of these algorithms, occlusion culling is a method of rejecting the objects which are not visible because they are occluded by other objects, and then passing only the visible objects to graphics hardware. Existing occlusion culling algorithms have some shortcomings such as the required long preprocessing time, the limitation of occluder shape, or the need for special hardware implementation. In this study, an efficient occlusion culling algorithm is proposed. The proposed algorithm reads and analyzes Z-buffer of graphics hardware using Microsoft DirectX, and then determines each object's visibility. This proposed algorithm can speed up visualization by reading Z-buffer using DirectX which can access hardware directly compared to OpenGL, by reading only the region to which each object is projected instead of reading the whole Z-Buffer, and the proposed algorithm can perform more exact visibility test by using simplified model instead of using bounding box. For evaluation, the proposed algorithm was applied to very large polygonal models. And smooth realtime visualization was attained.