• Journal of the Korean Society for Precision Engineering
• /
• v.27 no.7
• /
• pp.63-70
• /
• 2010

We developed a new punching system that generates pinholes expressing texts or images on a plastic plate. The pin-holed plate is used as a new glamorous display board reflecting colorful lights from the light emitting diode (LED) installed on the edge side of the plate. The four degree-of-freedom punching system was designed to make same multiple holes on four plastic plates simultaneously. For this motion, we designed a structure for a simultaneous motion of the system. For even reflection of the lights from texts or images on the board and fast production of the pin-holed boards, fast motion including precise position control is very important. We also built a PC-based integrated control system including a GUI program to help users easily design luminous texts or images on the plastic plate. Also, we conducted a performance test of the system to verify the punching speed and position control of the pin holes on the plate.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.15 no.1
• /
• pp.89-98
• /
• 2011

In this paper, a new touch user interface which is based on the hand operations of dragging and diversion is presented. With it, convenience and quickness for inputting of texts as well as searching and selecting of multi-layered menus are improved. The new interface also applies relative coordinate systems which display texts on the touch positions corresponding to the moving of touch location. It accommodates more text codes than those in conventional fixed coordinate systems which allocates texts to fixed location on touch screen. The suggested interface is implemented to IPTV remote control and set-top box to prove its practicality and effectiveness.

• Journal of the Korea Society of Computer and Information
• /
• v.12 no.5
• /
• pp.1-10
• /
• 2007

Many types of information provided through the web including news contents contain unnecessary clutters. These clutters make it difficult to build automated information processing systems such as the summarization, extraction and retrieval of documents. We propose a system that extracts and summarizes news contents from the web. The extraction system receives news contents in HTML as input and builds an element tree similar to DOM tree, and extracts texts while removing clutters with the hyperlink attribute in the HTML tag from the element tree. Texts extracted through the extraction system are transferred to the summarization system, which extracts key sentences from the texts. We implement the summarization system using co-occurrence relation graph. The summarized sentences of this paper are expected to be transmissible to PDA or cellular phone by message services such as SMS.

• Journal of the Ergonomics Society of Korea
• /
• v.32 no.5
• /
• pp.449-457
• /
• 2013

Objective: The aim of this study is to investigate the effect of Hangul font on reading speed when texts are displayed on the computer screen. Background: Reading performance is influenced by fonts. However, there are few studies of Hangul font from a cognitive perspective. Fonts could affect reading performance directly and indirectly, interacting with other visual-perceptual factors such as size, word spacing, and line spacing. Method: In experiment 1, two variables were manipulated; a frame condition(square frame non-square frame) and a stroke condition(serif sans-serif). According to each condition, one of the four fonts was applied to the texts. The height of the four fonts was controlled. The participants were asked to read aloud the presented texts. In experiment 2, the non-square frame fonts were adjusted to have approximately the same size, width, letter spacing, and word spacing as the square frame fonts. The experimental design and task used in experiment 2 were identical with experiment 1. Results: In general, reading speed was faster in the square frame fonts than in the non-square frame fonts. The reading speed was not significantly different across stroke conditions. Conclusion: The frame of Hangul font significantly influenced reading speed. These results suggest that the type of Hangul font is a factor to affect reading performance. Application: The frame of fonts should be considered in designing of new fonts. The square frame fonts should be the preferred choice to enhance legibility.

• Journal of The Korean Association For Science Education
• /
• v.30 no.1
• /
• pp.27-41
• /
• 2010

Scientific texts are some of major sources for scientific understanding. Therefore, reading scientific texts should be considered as an important learning activity. However, there is little research about reading scientific text in Korea. In this study, as a starting point for research about reading scientific text, lists of scientific text constituents and scientific text functions are suggested based on a comprehensive literature review. The study also reviewed how scientific text structure, familarity of scientific text and analogy involved in scientific text can affect students' scientific understanding through reading scientific text. Finally, further study plans, such as analysis of actual science textbooks using the lists suggested in this study as well as the investigation of actual students' thinking processes when reading scientific text, were described.

• The Journal of Korean Medical History
• /
• v.27 no.1
• /
• pp.1-7
• /
• 2014

Objectives : By understanding the basic information as a text about the original script, composition and characteristic of "Shanghanlunzhujie" which is included in "Uibang-yuchwi", We are evaluating value and significance of the text today. Methods : First of all, We are finding what the original script is through comparing different editions. Then by concrete analysis about texts, We are going to determine which standards affected "Shanghanlunzhujie" and "Uibang-yuchwi", and which elements included in those texts. In addition, We are figuring out what the characteristics are in the those texts roughly. Through this consideration, We could evaluate value and significance of the text. Results & Conclusions : In the course of research, We found that this publication deserves attention in the hereditary history of the "Shanghanlun" editions. First, the version of the "Shanghanlunzhujie" in the "Uibang-yuchwi" is surely the Won(元) edition. Based on recent research findings, the Won edition is the earliest version of Chengwuji's "Zhujieshanghanlun". Not only does it contain the original contents, it restored the deleted annotations of the Song edition, constituting the most accurate "Shanghanlun" edition closest to the original form of today.

• Journal of KIISE:Computing Practices and Letters
• /
• v.16 no.10
• /
• pp.1015-1019
• /
• 2010

An extensive research on exact string matching has been done, but there have been few researches on the matching in multi-byte character set texts such as EUC~KR. This paper shows that false matches may occur in multi-byte character set texts such as EUC-KR when using KMP algorithm, and presents a refined KMP algorithm without false matches applying a character-based prefix function. And also, Experimental results show that our algorithm is faster than string matching algorithms of widely used editors, Vim and Emacs, and the existing automata-based algorithm.

• Journal of Korean language education
• /
• v.29 no.4
• /
• pp.201-223
• /
• 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.

• Journal of Korean Medical classics
• /
• v.32 no.3
• /
• pp.17-29
• /
• 2019

Objectives : This paper is an analysis of the name 'Shanghan(傷寒)' and its related contents in unearthed documents. "Shanghanlun" as we know it is an edited version by Wangshuhe of the Jin period, as the original text as written by Zhangzhongjing has been unavailable. Recently in China, documents of the Xian Jin and Liang Han periods are being unearthed, allowing us to look at medical texts of previous times that Zhang referenced. The aim of this paper is to look at the developmental process of the Shanghan theory based on these medical texts. Methods : Research documents include all unearthed documents that include the name 'Shanghan'. There were a total of 4 written cases, 2 in "Wuweihandaiyijian", and one each in "Dunhuanghanjian" and "Juyanhanjian". Meaning of extracted examples were analyzed in reference to the shape of the character, then compared and analyzed with existing medical texts such as "Shanghanlun", "Jibeiqianjinyaofang", and "Bencaogangmu" Conclusions : By examining the 4 examples, Bianzhenglunzi and clinical prescriptions which are characteristics of Shanghanlun could be found. There was an 'Eliminating Wind' formula that was used to eliminate Cold pathogen of the exterior which showed remarkable resemblance to that found in "Jibeiqianjinyaofang". There are also formulas that 'Communicate to Disentangle' and 'Disentangle the Stomach' which are used in progressed stages of Shanghan disease, showing that Bianzhenglunzi had already been applied to Shanghan conditions.

• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.14 no.4
• /
• pp.91-96
• /
• 2004

In this paper, we introduce two forgery attacks on the PMAC. If it has no truncation then the attack requires about $2^{n}$ 2+1/ chosen texts, otherwise, the attack requires about $2^{n}$ 2+1/ chosen texts and $2^{n-}$$\tau$ MAC verifications where $\tau$ is the size of the MAC. We also give a forgery attack on the TMAC variant which requires about $2^{n}$ 2+1/ texts.