• Proceedings of the Korea Society of Design Studies Conference
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• 2005.05a
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• pp.138-139
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• 2005

• Journal of the Korea Society of Computer and Information
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• v.18 no.10
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• pp.163-172
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• 2013

This study was conducted to explore a method of displaying optimized letters that fit the size of tables using a genetic algorithm. As a result, fonts with optimized letters of different lengths were offered through optimum values of the font size, line spacing, and letter spacing by calculating the width and height of the cell and number of letters to be entered. This study is significant in that it provides a solution to letter optimization issues in fixed cells that occur in various word processors that are currently used, through the genetic algorithm.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.05a
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• pp.690-693
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• 2007

훈민정음 창제당시의 모든 한글 음절을 모두 표현함에 있어서 현재의 컴퓨터 환경은 표현방법과 폰트의 부족으로 입력 및 출력을 완전하게 할 수 없다. 본 연구에서는 훈민정음해례에서 정의한 약 399억 음절을 컴퓨터 위에서 표현할 수 있는 폰트를 제작함에 있어서 글꼴 설계의 경제적이고 효율적인 방법을 개발하는 데 초점을 둔다. 그렇게 하려면 완성형이 아닌 조합형 글꼴 설계가 요구되며, 자소들을 복자모를 뺀 오직 낱자소만으로 제작함으로써, 음절구성 형태에 따른 낱자소 8개 형식과 세 가지 타입으로 설계한다. 즉, 컴퓨터상에서는 모든 한글이 낱자소만 이용하여 풀어쓰기 형태로 입력되며, 화면에 출력할 때는 풀어쓰기 형태의 자소들을 모아쓰기로 표현하여 낱자소를 초성, 중성, 종성만으로 둘 또는 세 글자 복자모로 확장하여 표현한다. 그러므로 최소한의 폰트모양을 이용하여 훈민정음 창제 당시의 모든 한글 399억 음절을 컴퓨터에 표현할 수 있도록 한다.

• Annual Conference on Human and Language Technology
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• 2008.10a
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• pp.53-57
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• 2008

1987년 정보교환용 부호가 완성음절형 부호계로 개정되면서 한글 음절 표현은 극히 제한되어 컴퓨터상에서 한글의 표현은 제약을 받게 되었다. 1446년 훈민정음이 공포된 후로 목판, 활자시대를 지나서 타자기를 만나면서 한자와 다른 길을 걸어왔다. 특히 컴퓨터시대가 되면서 한글은 타자 이상의 적합성을 가지고 있지만 훈민정음 창제원리에 대한 이해부족으로 음절문자로 분류하여 완성음절형 부호를 지원하게 됨에 따라서 많은 문제를 야기하고 있다. 국제표준인 유니코드에는 세가지 종류의 부호가 반영되어 있는데 음절문자 중심의 부호화이므로 훈민정음의 특성을 해치는 일이며 또한 한글의 과학성을 부정하는 일이기도 하다. 본 논문은 훈민정음 창제원리에 입각하지 않음으로 생긴 문제에 대한 근본적인 해결책으로 훈민정음을 표현하는 최적 폰트 설계 방안을 검토하고 현행의 한글부코드표준의 개선 방향을 제시하고자 한다.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.29 no.11 s.242
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• pp.1509-1517
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• 2005

This paper presents the two degree-of-freedom(DOF) planar parallel mechanism called 2R$\underline{P}$R-RP manipulator, whose degree-of freedom is dependent on a passive constraining leg connecting the base and the platform. First, the kinematic analysis of the mechanism is performed analytically: the inverse and forward kinematic problems are solved in the closed font the practical workspace is systematically derived, and all of the singular configurations are examined. Then, in order to determine the geometric parameters and the operating limits of the actuators, the optimization of the mechanism is performed considering its dexterity and stiffness. Finally, the kinematic performances of the optimized mechanism are evaluated through comparing to the 5-bar parallel manipulator.

• Journal of the Korean Institute of Telematics and Electronics
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• v.27 no.8
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• pp.1239-1249
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• 1990

In this paper, using the neural network design techniques, an adaptive Mahalanobis distance classifier(AMDC) is designed. This classifier has three layers: input layer, internal layer and output layer. The connection from input layer to internal layer is fully connected, and that from internal to output layer has partial connection that might be thought as an Oring. If two ormore clusters of patterns of one class are laid apart in the feature space, the network adaptively generate the internal nodes, whhch are corresponding to the subclusters of that class. The number of the output nodes in just same as the number of the classes to classify, on the other hand, the number of the internal nodes is defined by the number of the subclusters, and can be optimized by itself. Using the method of making the subclasses, the different patterns that are of the same class can easily be distinguished from other classes. If additional training is needed after the completion of the traning, the AMDC does not have to repeat the trainging that has already done. To test the performance of the AMDC, the experiments of classifying 500 Hangeuls were done. In experiment, 20 print font sets of Hangeul characters(10,000 cahracters) were used for training, and with 3 sets(1,500 characters), the AMDC was tested for various initial variance \ulcornerand threshold \ulcorner and compared with other statistical or neural classifiers.

• Journal of Korea Multimedia Society
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• v.25 no.7
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• pp.953-963
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• 2022

We suggest the development of a mobile muscular savings account application as a more effective and consistent strategy to avoid sarcopenia, one of the elderly diseases, based on the researcher's experience conducting a handwritten 'muscle saving account' in the S city of the metropolitan area. The analysis of currently existent healthcare-related applications shows that muscle strength improvement and maintenance applications are needed to improve easy use and access without burden for elderly users because there are many functions, and it can be difficult for the elderly to use the application. A survey of participants who used handwritten 'muscle savings accounts' was conducted before the design development to measure user satisfaction. Based on this, the suggested application's design is similar to the handwritten type, functionalities are modified for easy usage by the elderly, and information is intuitively comprehended and presented properly using color contrast and Sans serif font. We plan to conduct a survey of the elderly who did not participate in the project as part of follow-up research, and afterward continue the research on the development of customized applications optimized for the prevention of sarcopenia in the elderly for muscle strength improvement and maintenance based on the results.