• Journal of the Korean Society of Costume
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• v.54 no.2
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• pp.79-94
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• 2004

The main purpose of this study is to discribe the transfiguration process and the symbols of theatrical costume of Sandai masque(산대놀이) during the Choson Dynasty. Sandai masque as a popular play is a very important form in the history of the Korean theatre. Furthermore in order to analyze the mutual relationship and difference between in the early and later Chosen Dynasty, Narye has is stressed deeply a national amusement event. In the early years of Choson Dynasty, non-official culture such as outside of Seoul and Seoul were subject to the official culture of the Court. In the late years, actors become more and more libral, separating themselves from the systemical restriction. The main reason for this is the growth of capitals in private sectors as well as the growth in demand for entertainment among private citizens. On these backgrounds, the transfiguration process of Sandai masque have changed the treatrical costume. The treatrical costume carries symbolic meaning to the obserber. The value of symbol changes as the time passes, overtime thereby altering its meaning as well. The caracters and plots change inevitably over years but the basic theme remains. The symbols of theatrical costume of Sandai masque are mainly focused on three subjects: first, the entrance of a dragon and tiger originated in the exorcism for good harvest; second, color symbolism expressed in the confrontation between red and black; and third, associate characteristics of dress forms related to regoinal classification of the mask dance.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2007.10a
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• pp.83-86
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• 2007

In the blind Maximum-likelihood (ML) detection for Orthogonal Space-Time Block Codes (OSTBC), the problem of ambiguity in determining the symbols has been a great concern. A solution to this problem is to apply semi-blind ML detection, i.e., the blind ML decoding with pilot symbols or training sequence. In order to increase the performance, the number of pilot symbols or length of training sequence should be increased. Unfortunately, this leads to a significant decrease in system spectral efficiency. This work presents an approach to resolve the aforementioned issue by introducing a new method for constructing transmitted information symbol. Thus, by transmitting information symbols drawn from different modulation constellation, the ambiguity can be easily eliminated in blind detection. Also, computer simulations are implemented to verify the performance of the proposed approach.

• School Mathematics
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• v.11 no.3
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• pp.351-368
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• 2009

This study presents data from a year-long teaching experiment which illustrate how two seventh graders modified their multiplicative thinking and interacted with their representing symbols in the context of combinatorial problem situations. Damon was at the process of construction of recursively multiplicative thinking by modifying his multiplicative reasoning, but Carol appeared to remain at the stage of a binary multiplicative scheme. The two students' struggles with their representing symbols or represented symbols by the teacher show that even well-organized symbolic systems from teachers' perspective do not necessarily help students advance their mathematical capacity.

• Journal of Educational Research in Mathematics
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• v.20 no.4
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• pp.511-528
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• 2010

Students' intuition in formal proof should be expressed as symbols according to the deductive process. The symbol will play a role of the mediation between the intuition and the formal proof. This study examined the evolution process of intuition mediated by the symbol in geometry proof. According to the results first, symbol took the great roles when students had the non-formed intuition for the proposition. The signification of symbols could explain even the proof process of the proposition with the non-expectable intuition. And when students proved it by symbols, not by figure nor words, they could evolute the conclusive intuition about the proposition.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.35 no.4C
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• pp.358-363
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• 2010

In IEEE 802.15.4a IR-UWB (Impulse Radio Ultra Wideband) systems, it is crucial to acquire initial carrier/timing synchronization and estimate channel response by exploiting the SYNC symbols embedded in each packet. On the other hand, it is also crucial to detect the SFD pattern followed by the header and data symbols to reliably extract the information contained in the packet. In this paper, we propose a reliable SFD detection scheme utilizing some surplus SYNC symbols in addition to SFD symbols to improve the SFD detection performance.

• Journal of KIISE:Computing Practices and Letters
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• v.8 no.4
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• pp.442-449
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• 2002

EZW (Embedded Zerotree Wavelet) is an efficient algorithm to encode wavelet-transformed image. In this algorithm, each coefficient of wavelet transformed image is given one of the specific symbols and encoded according to its significant priority. In this paper, we analysis the occurrence conditions of symbols in EZW and propose a modified EZW algorithm. In the proposed algorithm, the significance of an IZ (Isolated Zero) symbol is determined by the additional conditions as well as its absolute value. The occurrence of IZ symbols is decreased and the required bits for insignificant IZ symbols is saved, so we obtained good quality of the reconstructed image.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 1998.06b
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• pp.189-194
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• 1998

We introduce a new zerotree scheme that effectively exploits the inter-scale self-similarities found in the octave decomposition by a wavelet transform. A zerotree is useful to efficiently code wavelet coefficients and its efficiency was proved by Shapiro's EZW. In the coding scheme, wavelet coefficients are symbolized and entropy-coded for more compression. The entropy per symbol is determined from the produced symbols and the final coded size is calculated by multiplying the entropy and the total number of symbols. In this paper, were analyze produced symbols from the EZW and discuss the entropy per symbol. Since the entropy depends on the produced symbols, we modify the procedure of symbolic streaming out for the purpose. First, we extend the relation between a parent and children used in the EZW to raise a probability that a significant parent has significant children. The proposed relation is flexibly extended according to the fact that a significant coefficient is highly addressed to have significant coefficients in its neighborhood. The extension way is reasonable because an image is decomposed by convolutions with a wavelet filter and thus neighboring coefficients are not independent with each other.

• Journal of the Korea Fashion and Costume Design Association
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• v.12 no.1
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• pp.131-139
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• 2010

The ten traditional symbols of longevity are represented as 10 which means perfection in oriental philosophy, the sun, mountain, water, cloud, rock, pine tree, elixir plant, tortoise, crane and deer. each subjects symbolizing longevity had used in isolation. unlike China and Japan, the ten symbols of longevity became a fixed form and was widely used in paintings, household effects and clothes in Korea. therefore, It will be a meaningful study how the ten symbols of longevity, as one of subjects in painting, changed into a pattern on clothes. The ten symbols of longevity was affected by various philosophies and religion. especially, it laid emphasis on order by Yin-Yang and the Five Elements theory. the order was applied to arrange each subjects and use colors carefully. the sun colored with red and was on the upper. the pine tree colored with green meaned tree and was on the left. the earth and the mountain meaned the soil and was on the center. the rock meaned the iron and was on the right. the water meaned the water and was on the bottom. The subjects of the study were embroideries like spectacle cases, spoon cases and pouches. the scope of study was the Latter Part of the Joseon Dynasty because there are more relics in the Joseon Dynasty than any other times.

• School Mathematics
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• v.7 no.1
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• pp.55-75
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• 2005

Mathematical symbolizing is an important part of mathematics learning. But many students have difficulties m symbolizing mathematical ideas formally. If students had experiences inventing their own mathematical symbols and developing them to conventional ones natural way, i.e. learning mathematical symbols via expressive approaches, they could understand and use formal mathematical symbols meaningfully. These experiences are especially valuable for students who meet mathematical symbols for the first time. Hence, there are needs to investigate how early elementary school students can and should experience meaningful mathematical symbolizing. The purpose of this study was to analyze students' mathematical symbolizing processes and characteristics of theses. We carried out teaching experiments that promoted meaningful mathematical symbolizing among eight first graders. And then we analyzed students' symbolizing processes and characteristics of expressive approaches to mathematical symbols in early elementary students. As a result, we could places mathematical symbolizing processes developed in the teaching experiments under five categories. And we extracted and discussed several characteristics of early elementary students' meaningful mathematical symbolizing processes.

• Journal of the Korean Society of Fashion and Beauty
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• v.6 no.1
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• pp.39-47
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• 2008

Korean embroidery is the long historical industrial arts of real life and has handed down Korean sentiment up to now. Korean traditional embroidered pattern is designed to wish someone's health and luck, who uses the embroidery on the clothes and the goods in real life. Especially, the ten longevity symbols' design is represented as 10 which means perfection in oriental philosophy, the sun, mountain, cloud, water, crane, rock, turtle, pine tree, the elixir of life and deer; these 10 symbols show how ancient Korean believe and wish perpetual youth. However, fiber material used embroidery relic has difficulty in preserving for long period compared to other relic descended from historical events for long time and their preserved state isn't so good owing to have been used directly in the real life. Therefore, it is essentially embossed to preserve the embroidery relic and pattern, and make DB for the data. With preservation of the pictures about the handicraft, it's necessary to preserve embroidery technique and make DB through digital imagination. Through the process, we can apply Korean embroidery image to cul-duct package and digital image related field, and it will be helpful to make the tradition popular. In this study, through the research for the embroidery technique applied pattern on the embroidery relic of ten longevity symbols, we'll establish the cultural identification of Korean embroidery image and then develop a worldwide Korean image.