• Korean Journal of Childcare and Education
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• v.6 no.1
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• pp.47-65
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• 2010

The current study aims to examine differences of mother's child-rearing attitude by background variables of infant's and mothers, the influence of mother's child-rearing attitude, temperament and goodness of fit of infant's on adjustment to childcare center, and relative influence among elements. Subjects for the study were 165 infant's of two year old attending 8 childcare centers in Seoul, Gyeonggi-do and Jeju-do, and their mothers and homeroom teachers at childcare centers. As a result of the study, it was found that there was no difference in background variables such as sex and order among siblings of infant's, childcare experience and average hours at childcare centers a day, and mother's age and job, while there were differences in mother's child-rearing attitude by mother's education, household's monthly income and mother's working hours per week. Also it was observed that mother's restrictive attitude, positive attitude and infant's regular temperament influenced their adjustment to childcare centers, and relatively influential elements on general adjustment to childcare centers were mother's restrictive attitude and positive attitude. That IS, it was found that as mother's restrictive attitude and positive attitude were high, infant's general adjustment to childcare centers became high. These study results show that if infant's learn basic rules and habits from parents at home by having positive relationship with mothers, getting appropriate educative instruction, having proper autonomy and obtaining positive assessment from their mothers, rather than strict restriction or bluff, can adapt themselves to childcare centers with no difficulty.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.43 no.1 s.307
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• pp.9-16
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• 2006

This Paper proposes an adaptive error diffusioThis paper proposes an adaptive error diffusion algorithm for text enhancement followed by an efficient text segmentation that uses the maximum gradient difference (MGD). The gradients are calculated along with scan lines, and the MGD values are filled within a local window to merge the potential text segments. Isolated segments are then eliminated in the non-text region filtering process. After the left segmentation, a conventional error diffusion method is applied to the background, while the edge enhancement error diffusion is used for the text. Since it is inevitable that visually objectionable artifacts are generated when using two different halftoning algorithms, the gradual dilation is proposed to minimize the boundary artifacts in the segmented text blocks before halftoning. Sharpening based on the gradually dilated text region (GDTR) prevents the printing of successive dots around the text region boundaries. The error diffusion algorithm with edge enhancement is extended to halftone color images to sharpen the tort regions. The proposed adaptive error diffusion algorithm involves color halftoning that controls the amount of edge enhancement using a general error filter. The multiplicative edge enhancement parameters are selected based on the amount of edge sharpening and color difference. Plus, the additional error factor is introduced to reduce the dot elimination artifact generated by the edge enhancement error diffusion. By using the proposed algorithm, the text of a scanned image is sharper than that with a conventional error diffusion without changing background.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.05a
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• pp.421-424
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• 2008

This paper proposes an adaptive noise suppression system based on human auditory model to enhance speech signal that is degraded by various background noises. The proposed system detects voiced and unvoiced sections for each frame and implements the adaptive auditory process, then reduces the noise speech signal using neural network including amplitude component and phase component. Base on measuring signal-to-noise ratios, experiments confirm that the proposed system is effective for speech signal that is degraded by various noises.

• Journal of the Institute of Electronics Engineers of Korea SC
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• v.43 no.5 s.311
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• pp.1-9
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• 2006

Because most applications of vision-based object tracking demonstrate satisfactory operations only under very constrained environments that have simplifying assumptions or specific visual attributes, these approaches can't track target objects for the highly variable, unstructured, and dynamic environments like a traffic scene. An adaptive fusion framework is essential that takes advantage of the richness of visual information such as color, appearance shape and so on, especially at cluttered and dynamically changing scenes with partial occlusion[1]. This paper develops a particle filter based adaptive fusion framework and improves the robustness and adaptation of this framework by adding a new distinctive visual attribute, an image feature descriptor using SIFT (Scale Invariant Feature Transform)[2] and adding an automatic teaming scheme of the SIFT feature library according to viewpoint, illumination, and background change. The proposed algorithm is applied to track various traffic objects like vehicles, pedestrians, and bikes in a driver assistance system as an important component of the Intelligent Transportation System.

• Journal of Korea Society of Industrial Information Systems
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• v.8 no.2
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• pp.14-20
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• 2003

This paper presents a text extraction method of camera based document image. It is more difficult to recognize camera based document image in comparison with scanner based image because of segmentation problem due to variable lighting condition and versatile fonts. Both document binarization and character extraction are important processes to recognize camera based document image. After converting color image into grey level image, gray level normalization is used to extract character region independent of lighting condition and background image. Local adaptive binarization method is then used to extract character from the background after the removal of noise. In this character extraction step, the information of the horizontal and vertical projection and the connected components is used to extract character line, word region and character region. To evaluate the proposed method, we have experimented with documents mixed Hangul, English, symbols and digits of the ETRI database. An encouraging binarization and character extraction results have been obtained.

• Proceedings of the Acoustical Society of Korea Conference
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• autumn
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• pp.11-14
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• 2000

본 논문에서는 재귀적 지연추정기를 갖는 적응여파기를 이용하여 음성신호에 내재한 배경잡음을 제거하는 단일입력 적응잡음제거기를 TMS320C30 EVM 보드에서 실시간 구현하였다. 이를 위하여 샘플시간마다 지연정보를 구할 수 있는 재귀적 평균 절대차 함수를 사용하고, 정규화 된 최소평균자승(NLMS: Normalized Least Mean Square) 알고리듬을 사용하는 단일입력 잡음제거 시스템을 시뮬레이션한 (1)의 내용을 EVM 보드에 구현하였다. 그리고, (1)과 동일한 방법으로 백색 가우시안 잡음에 의해 왜곡된 음성에 대하여 SNR(Signal-to-Noise Ratio)에 따른 잡음제거 실험을 하였으며, EVM 보드에서의 실험결과를 (1)의 시뮬레이션 결과와 비교/검토하였다.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2022.09a
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• pp.37-37
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• 2022

밀은 세계 3대 작물로 국내 1인당 소비량은 지속적으로 증가하고 있다. 하지만 국내 밀의 유전적 배경 확대와 기후변화 신속 대응을 위한 국내 밀 유전자 풀의 확장은 밀의 질적 향상을 위해 매우 중요한 목표이다. 국내 자생 갯그령(Leymus mollis)은 해안가에서 번식하는 영년생 식물로 뿌리줄기를 이용한 왕성한 번식력을 가지고 있다. 또한, 해안가의 뜨겁고 염에 대한 적응성과 저항성을 가지고 있다. 이러한 특성은 밀 유전자 풀의 확장에 매우 유용할 것이다. 국내 밀 재배지 한계 극복을 위한 간척지 재배가 가능한 내염성 강화 밀 자원 개발을 위하여 모본인 보통 밀(Triticum aestivum L., Chinese Spring)과 부본인 갯그령을 원연교배하였다. 갯그령과 보통 밀의 원연 교배를 통한 종자 형성은 매우 어려우나 불가능한 것은 아니며, 최종적으로 10개의 교배 종자를 얻어 F₁ 식물체로 생장하는 과정에서 5 식물체는 고사하였고, 나머지 5 식물체는 영년생 특성인 뿌리줄기에 의해 새로운 줄기가 출현하는 것을 확인하였다. 또한, 갯그령의 DNA를 이용한 genomic in situ hybridization 방법으로 F₁ 식물체에서 갯그령의 염색체가 밀의 유전적 배경에 이입된 것을 확인하였다. F₂ 식물체는 모본인 보통 밀보다 긴 수장과 간장을 나타내고 이삭 수는 많았지만, 출수기는 보통 밀보다 3주 이상 늦어지는 것을 확인하였다. 내염성 평가를 위하여 F₂ 종자를 2% 소금물에서 발아시켜 생육이 좋은 식물체를 선발하여 50 cm 투명 아크릴 원통에 이식하고 2% 소금물을 지속적으로 관개하였다. 내염성 강화 F₂ 식물체는 염에 감수성을 보인 식물체에 비하여 상대적으로 긴 이삭과 종자 형성을 보였으며, 감수성 식물체는 종자 형성이 이루어지지 않았다. 또한, 내염성 강화 F₂ 식물체는 감수성 식물체에 비하여 좋은 뿌리의 신장과 천근성을 보였다. 이러한 갯그령의 식물학적 특성이 이입된 계통은 기후변화 대응, 환경 적응성 강화, 및 근권 강화에 좋은 작물 소재로 이용할 수 있다고 생각한다.

• Journal of Korean Home Economics Education Association
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• v.17 no.3 s.37
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• pp.71-82
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• 2005

The purpose of this study is to research on how the types of father's communication were perceived by the adolescents and how the school adjustment of the adolescents according to the communication between father's and adolescents appear. The major results of this study were as follows. First, the school adjustment showed difference according to the general characteristics (adolescent's age, father's jobs) of the students surveyed. Second, the statistic correlation appeared in the relationship of the style of communication between father and adolescents and the school adjustment of the adolescents.

• The Journal of the Korea Contents Association
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• v.17 no.5
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• pp.461-469
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• 2017

The purpose of this study was to investigate college life adaptation and loneliness of non-traditional adult learners with nursing major. A cross-sectional survey was conducted on one hundred and ten participants from selected universities in G city. A structured questionnaire which included general characteristics, a College Life Adaptation Scale and a Revised UCLA Loneliness Scale was a study instrument. Descriptive statistics, independent t-test, one-way ANOVA, and Pearson correlation coefficients were used for data analysis. The average level of college life adaptation was 44.8, while the score for loneliness was found to be 40.3. There was a significant difference in college life adaptation according to perceived health status. Loneliness showed a significant difference according to grades. A significant positive correlation was observed between college life adaptation and loneliness. In other words, the greater the loneliness, the lower the adaptation to college life. Thus, the results suggest that Korean universities should pay close attention to psychological factors such as loneliness to improve the adaptation of non-traditional adult learners with varied backgrounds to college.

• Journal of Korean Home Economics Education Association
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• v.24 no.3
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• pp.209-223
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• 2012

The purpose of this study is to investigate the influential factors which is related to stress among the children from marrried-immigrant families. The cultural adjustment factor explored as the most affective factor to the children from multi-cultural families. Associated stress with the cultural adjustment, stress which is related to Korean ability presented as the most problematic one. As the conflict related to internalized problems increased as the stress also increased. However, as social support increased as the degree of stress seems to be decreased. For those children, schools work as the safe place compare to the other social environment. Therefore, it would be beneficial to redirect the role and the function of schools for the children from the married-immigrnat families. Various educational opportunity, which is not limited to teach Korean and Korean culture, should be offered to the children as to improve his/her self-esteem.