• Title/Summary/Keyword: Symbol and Expression

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A Study on the Effective Symbolic Expression Methods of Uniform Design (유형별 유니폼 디자인의 효과적인 상징표현 방법)

  • Kim, Yun-Hee;Lee, Jae-Jung
    • Journal of the Korean Society of Costume
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    • v.56 no.8 s.108
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    • pp.148-159
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    • 2006
  • The objective of this study is to consider the uniform as visual communication, and analyze the expression of symbol shown on the uniform design by the pattern by applying the visual symbol in the communication and operation of the meaning. Also, it is to construct the systematic modeling method of the expression of design symbol by the pattern of uniform in th e various fields. This study is to analyze the symbolic expression method of the uniform design by the pattern by suggesting the symbolic expression method as a frame through the visual symbolic approach of the uniform design and the analysis of semantic symbol according to that. As a result, there arose simplification and emphasis and a method of symbolic expression with the national flag, a conceptual factor characteristically in the sports uniform design. The characteristics of symbolic expression of uniform design were mainly used in the symbolic expression with the customary code and symbol. Also, the uniform in the enterprises were widely used in the expression of uniform with the suggestion and code by the color. As for the characteristics of symbolic expression shown on the event uniform design, the method of symbolic expression by the pattern of uniform was grasped differently asa result of symbolic expression through the image. The method of symbolic expression suggested on this study could be used on a basis of uniform design in the future. Accordingly, this study has a meaning of suggesting the methodology of uniform design that would be a parameter.

Experimentation on The Recognition of Arithmetic Expressions (수식 표현의 인식에 관한 연구)

  • Lee, Young Kyo;Kim, Young Po
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.10 no.4
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    • pp.29-35
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    • 2014
  • The formula contains up between the text and the structural information, as well as their mathematical symbols. Research on-line or off-line recognition formula is underway actively used in various fields, and various forms of the equation are implemented recognition system. Although many documents are included in the various formulas, it is not easy to enter a formula into the computer. Recognition of the expression is divided into two processes of symbol recognition and structural analysis. After analyzing the location information of each character is specified to recognize the effective area after each symbol, and to the structure analysis based on the proximity between the characters is recognized as an independent single formula. Furthermore, analyzing the relationship between the front and back each time a combination of the position relationship between each symbol, and then to add the symbol which was able to easily update the structure of the entire formula. In this paper, by using a scanner to scan the book formula was used to interpret the meaning of the recognized symbol has a relative size and location information of the expression symbol. An algorithm to remove the formulas for calculation of the number of formula is present at the same time is proposed. Using the proposed algorithms to scan the books in the formula in order to evaluate the performance verification as 100% separation and showed the recognition rate equation.

Closed-form Expression for the Symbol Error Probability of Orthogonal Space-Time Block Codes with Quadrature Amplitude Modulation (QAM 변조방식을 갖는 직교 시공간 블록 부호의 심볼 오율)

  • 김상효;강익선;노종선
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.28 no.6C
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    • pp.561-569
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    • 2003
  • In this paper, for my linear orthogonal space-time block including the orthogonal space-time codes introduced by Alamouti[1], Tarokh[14], and Xia[11], the exact expression for the pairwise error probability in the slow Rayleigh fading channel is derived in terms of the message symbol distance between two message vectors rather than the codeword symbol distance between two transmitted codeword matrices. Using the one-dimensional component symbol error probability, the exact closed form expressions for the symbol error probability of linear orthogonal space-time codes are derived for QPSK, 16-QAM, 64-QAM, and 256-QAM.

Noncentral F-Distribution for an M-ary Phase Shift Keying Wedge-Shaped Region

  • Kim, Jung-Su;Chong, Jong-Wha
    • ETRI Journal
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    • v.31 no.3
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    • pp.345-347
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    • 2009
  • This letter presents an alternative analytical expression for computing the probability of an M-ary phase shift keying (MPSK) wedge-shaped region in an additive white Gaussian noise channel. The expression is represented by the cumulative distribution function of known noncentral F-distribution. Computer simulation results demonstrate the validity of our analytical expression for the exact computation of the symbol error probability of an MPSK system with phase error.

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A Study on the Application Traditional Design Elements for Contemporary Interior Space (현대실내공간에서의 전통의장요소 활용에 관한 연구)

  • Jun, Kyong-Hee;Nam, Kyung-Sook
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2005.05a
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    • pp.116-121
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    • 2005
  • This research against the method of applying a traditional design elements to modern interior space is classified and analyzed by direct expression method, a transfigure expression method, a metaphor expression method and a symbol expression method. The direct expression method means the modernizing the traditional design elements by expressing traditional material and structural formative style as they are, and the transfigure expression method is the design method of re-organizing the elements by simplifying and transfiguring the traditional design elements. Metaphor expression method includes the method of expressing visually the formative concept which does not known concretely, and the symbol expression method exchanges the rising concepts into concrete elements and expresses by new design.

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General Log-Likelihood Ratio Expression and Its Implementation Algorithm for Gray-Coded QAM Signals

  • Kim, Ki-Seol;Hyun, Kwang-Min;Yu, Chang-Wahn;Park, Youn-Ok;Yoon, Dong-Weon;Park, Sang-Kyu
    • ETRI Journal
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    • v.28 no.3
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    • pp.291-300
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    • 2006
  • A simple and general bit log-likelihood ratio (LLR) expression is provided for Gray-coded rectangular quadrature amplitude modulation (R-QAM) signals. The characteristics of Gray code mapping such as symmetries and repeated formats of the bit assignment in a symbol among bit groups are applied effectively for the simplification of the LLR expression. In order to reduce the complexity of the max-log-MAP algorithm for LLR calculation, we replace the mathematical max or min function of the conventional LLR expression with simple arithmetic functions. In addition, we propose an implementation algorithm of this expression. Because the proposed expression is very simple and constructive with some parameters reflecting the characteristic of the Gray code mapping result, it can easily be implemented, providing an efficient symbol de-mapping structure for various wireless applications.

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A Study on the Expressional Characteristics of Iconography in Modern Church Architecture (현대교회건축에 나타나는 도상학적 표현특성에 관한 연구)

  • Cho, Kyung-Soo;Oh, Kun-Soo
    • Korean Institute of Interior Design Journal
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    • v.15 no.6 s.59
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    • pp.52-59
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    • 2006
  • The study is intended to clarify the ideologies and principles applied to the formative expression of church architecture which is contained both the God and human. Iconography as the relation between described target and the meaning as meaning analysis especially emphasized since the religious reason in religious art. Iconography is the area of discussing rules and habits and involved in the pieces of transition from the piece of experience obtained by sensing to the one of the ethical structure. N. L. Prak who apply meaning theory of E. Panofsky who distinguish between iconography and iconology clear relation of mental foundation which characteristics of shape of art and its concretion in architecture categorized the shape of meaning in three steps. Among them, conscious symbol and unconscious symbol correspond to iconography and iconology of Panofsky respectively. The symbol is mainly showed in religious architecture and is not related to simple practical architecture. Such symbol system can be important discussion objects in modern church architecture and necessary expressional system for expressional characteristics.

Low-Area Symbol Timing Offset Synchronization Structure for WLAN Modem (WLAN용 저면적 심볼 타이밍 옵셋 동기화기 구조)

  • Ha, Jun-Hyung;Jang, Young-Beom
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.3
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    • pp.1387-1394
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    • 2011
  • In this paper, a low-area symbol timing offset synchronization structure for WLAN Modem is proposed. Using CSD(Canonic Signed Digit) coefficients and CSS(Common Sub-expression Sharing) technique for the filter implementation, efficient structure for multiplication block can be obtained. Function simulation for proposed structure is done by using the preamble with timing offset. Through Verilog-HDL coding and synthesis, it is shown that the proposed symbol timing offset synchronization structure can be implemented with low-area semiconductor.

Transition of Domestic Corporate Symbol Mark - Chiefly Focusing on Portfolio of CI Specialized Companies - (국내 기업심볼마크의 변천 - CI 전문회사들의 포트폴리오를 중심으로 -)

  • Lee, Jae-Hyun
    • The Journal of the Korea Contents Association
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    • v.7 no.1
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    • pp.207-214
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    • 2007
  • Symbol mark started with expressing the symbolic form through the long history of human beings, in order to transmit self or group's life and thoughts, and since the Industrial Revolution, symbol mark has beer used for the business activities of enterprise, along with the acquirement of term 'CI'. The symbol mark design of A.E.G, designed by Peter Behrens in 1907 is the onset of symbol mark in the CI concept, and the concept of CI and symbol mark was introduced to our nation in the early of 1970s. Since then, until now, CI has reflected the phase of the times as a key factor of CI, while repeating numerous changes, and recently, it is a state that the expression methods of symbol mark have been varied with the popularization of trend, appealing to emotion in the whole society and culture. Accordingly, this thesis examines the corporate symbol mark through the portfolio of representative CI specializes companies from the introduction period of CI to the present, and analyze the features of the time in order to present the basis of the direction of symbol mark design for the creation of future corporate images.

Performance Analysis of OFDMA Uplink Systems with Symbol Timing Misalignment (사용자간 상대적인 시간오차에 의한 OFDMA 역방향 시스템의 성능 분석)

  • Park Myonghee;Hong Daesik
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.42 no.2 s.332
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    • pp.17-22
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    • 2005
  • This paper presents our investigation for the effect of symbol timing errors in orthogonal frequency division multiple access (OFDMA) uplink systems. We express the symbol timing errors between users as the symbol timing misalignments with respect to the desired user. Then, we derive an explicit expression of the average effective signal-to-interference-plus-noise ratio. (SINR) as a function of the maximum value of the symbol timing misalignments. Based on the resulting SINR degradation, we evaluate the SINR gain with guard subcarriers in order to mitigate the effect of the symbol timing misalignments.