• Title/Summary/Keyword: A487

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The Scheduling of Real-Time tasks using Performance Evaluation through fuzzy-random in Real-Time Systems

  • Cho, H-G;Kim, H-B
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.487-487
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    • 2000
  • The scheduling of real-time tasks needs both correctness and timeliness. But it is not easy to schedule real-time tasks having different characteristics in a single system. In this paper we solve the problem through an approach using the performance evaluation of real-time tasks through fuzzy-random variables. Using the performance evaluation through fuzzy-random variable, we can achieve flexible and efficient scheduling for real-time systems.

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삼각함수의 Mathematization에 관한 연구

  • Kim, Boo-Yoon;Chung, Young-Woo
    • East Asian mathematical journal
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    • v.26 no.4
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    • pp.487-507
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    • 2010
  • We study mathematization of natural thinking and some materials developed in geometric construction of regular n-polygons. This mathematization provides a nice model for illustrating interesting approaches to trigonometric functions and trigonometric ratios as well as their inter-connections. Thereby, results of this paper will provide the procedure of the development for these concepts in natural way, which will be helpful for understanding background knowledges.

Isolation and characterization of Brucella abortus isolates from wildlife species in South Korea

  • Truong, Quang Lam;Kim, Kiju;Kim, Jong-Taek;Her, Moon;Jung, Suk-Chan;Hahn, Tae-Wook
    • Korean Journal of Veterinary Research
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    • v.56 no.3
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    • pp.147-153
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    • 2016
  • A total of 782 blood and 465 tissue samples from 1,039 wild animals and 127 dairy goats were collected from January 2011 to December 2013 in 10 provinces of South Korea and tested for the presence of brucellosis. The Rose Bengal test revealed that 8.0% (52/650) of the serum samples were seropositive, while 4.2% (33/782) of the serum samples were positive for Brucella antibodies by competitive enzyme-linked immunosorbent assay. Of the 650 sera examined, only 16 (2.5%) were positive by both serological tests. Direct polymerase chain reaction (PCR) assay using B4/B5 primers for Brucella abortus (BCSP31) revealed the prevalence of Brucella to be 26.5% (129/487) in blood samples and 21% (98/465) in tissue samples while, 16S rRNA PCR detected Brucella DNA in 6.8% (33/487) and 2.6% (12/465) in blood and tissue samples, respectively. Of PCR-positive samples, only 6.2% (30/487) of blood samples and 2.4% (11/465) of tissue samples were found to be positive by both BCSP31 and 16S rRNA PCRs. However, Brucella strains were isolated by blood culture from only two out of 487 blood samples (0.4%). This characterization and identification of pathogenic Brucella isolates is the first to clearly indicate that the organisms were Brucella abortus biovar 1.