• Title/Summary/Keyword: remainder

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Bandwidth control for the performance improvement of BASK system (BASK 시스템의 성능 개선을 위한 대역폭 제어)

  • Kang, Seong-Ho;Lee, Chang-Young;NamKung, Wook;Hwan, Kyo-Hwan;Eom, Ki-Hwan
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • v.9 no.2
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    • pp.521-524
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    • 2005
  • We propose a method for improving the performance of BASK system using the automatic band width control of low pass filter of receive. Instead of a fixed bandwidth, proposed method is used to the fuzzy logic system. The inputs of fuzzy logic system are remainder and integral of remainder, and the output is bandwidth of low pass filter. The efficacy of the proposed method is verified by means of simulation.

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ON ISOMORPHISM THEOREMS AND CHINESE REMAINDER THEOREM IN HYPERNEAR RINGS

  • M. Al Tahan;B. Davvaz
    • The Pure and Applied Mathematics
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    • v.30 no.4
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    • pp.377-395
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    • 2023
  • The purpose of this paper is to consider the abstract theory of hypernear rings. In this regard, we derive the isomorphism theorems for hypernear rings as well as Chinese Remainder theorem. Our results can be considered as a generalization for the cases of Krasner hyperrings, near rings and rings.

The Clinical Study on the Relationship of Headache and Back shapes (두통(頭痛)과 배부체형(背部體形)과의 상관성에 대한 임상적 고찰)

  • Kim, Jang-Hyun
    • The Journal of Pediatrics of Korean Medicine
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    • v.17 no.2
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    • pp.161-171
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    • 2003
  • This study was to investigate the relationship of headache and back shape using the Moire interferometer and Questionnaire investigations. In this study the subjects consisted of 317 pupils[168 boys(53%), 149girls(47%)] attending S high school in Sungnamsi, Kyoungkido in 2002, and their ages ranged from sixteen to eighteen. The results are following. 1. In questionnaire investigation, we observed that the ratio of headache was more than 70% and the ratio of girls are more than that of boys. The inclination for ages was not shown. 2. In moire topography, the remainder values of scapular region were from 0.5 cm to 1.1 cm in boys, and from 0.45 cm to 1 cm in girls. The remainder values of gluteal region were from 0.2 cm to 0.8 cm in boys, and from 0.4 cm to 0.6 cm in girls. The reminder values of the vertical lines of cervical and buttock region were from 0.71 cm to 1.51 cm in boys, and from 0.96 cm to 1.43 cm in girls. More frequent findings of reminder value of the vertical lines of cervical and buttock region were observed that the vertical lines of cervical region were inclined to left than the vertical lines of buttock 3. Through the Pearson's Correlation analysis of headache and Moire topography, we found the close relationship of headache and the remainder values of scapular region(Pearson correlation coefficient : 0.116, P<0.05) and gluteal region(Pearson correlation coefficient : 0.153, P<0.01). But the relevances to headache and the remainder values of neck lines, sacral lines and neck-sacral lines were not found.

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A Multimedia Data Compression Scheme for Disaster Prevention in Wireless Multimedia Sensor Networks

  • Park, Jun-Ho;Lim, Jong-Tae;Yoo, Jae-Soo;Oh, Yong-Sun;Oh, Sang-Hoon;Min, Byung-Won;Park, Sun-Gyu;Noh, Hwang-Woo;Hayashida, Yukuo
    • International Journal of Contents
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    • v.11 no.2
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    • pp.31-36
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    • 2015
  • Recent years have seen a significant increase in demand for multimedia data over wireless sensor networks for monitoring applications that utilize sensor nodes to collect multimedia data, including sound and video. However, the multimedia streams generate a very large amount of data. When data transmission schemes for traditional wireless sensor networks are applied in wireless multimedia sensor networks, the network lifetime significantly decreases due to the excessive energy consumption of specific nodes. In this paper, we propose a data compression scheme that implements the Chinese remainder theorem to a wireless multimedia sensor network. The proposed scheme uses the Chinese Remainder Theorem (CRT) to compress and split multimedia data, and it then transmits the bit-pattern packets of the remainder to the base station. As a result, the amount of multimedia data that is transmitted is reduced. The superiority of our proposed scheme is demonstrated by comparing its performance to that of an existing scheme. The results of our experiment indicate that our proposed scheme significantly increased the compression ratio and reduced the compression operation in comparison to those of existing compression schemes.

Implementation of 2,048-bit RSA Based on RNS(Residue Number Systems) (RNS(Residue Number Systems) 기반의 2,048 비트 RSA 설계)

  • 권택원;최준림
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.41 no.4
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    • pp.57-66
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    • 2004
  • This paper proposes the design of a 2,048-bit RSA based on RNS(residue number systems) Montgomery modular multiplier As the systems that RNS processes a fast parallel modular multiplication for a large word partitioned into small words, we introduce Montgomery reduction method(MRM)[1]based on Wallace tree modular multiplier and 33 RNS bases with 64-bit size for RNS Montgomery modular multiplication in this paper. Also, for fast RNS modular multiplication, a modified method based on Chinese remainder theorem(CRT)[2] is presented. We have verified 2,048-bit RSA based on RNS using Samsung 0.35${\mu}{\textrm}{m}$ technology and the 2,048-bit RSA is performed in 2.54㎳ at 100MHz.