• Title/Summary/Keyword: synergetics

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Synergetics based damage detection of frame structures using piezoceramic patches

  • Hong, Xiaobin;Ruan, Jiaobiao;Liu, Guixiong;Wang, Tao;Li, Youyong;Song, Gangbing
    • Smart Structures and Systems
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    • v.17 no.2
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    • pp.167-194
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    • 2016
  • This paper investigates the Synergetics based Damage Detection Method (SDDM) for frame structures by using surface-bonded PZT (Lead Zirconate Titanate) patches. After analyzing the mechanism of pattern recognition from Synergetics, the operating framework with cooperation-competition-update process of SDDM was proposed. First, the dynamic identification equation of structural conditions was established and the adjoint vector (AV) set of original vector (OV) set was obtained by Generalized Inverse Matrix (GIM).Then, the order parameter equation and its evolution process were deduced through the strict mathematics ratiocination. Moreover, in order to complete online structural condition update feature, the iterative update algorithm was presented. Subsequently, the pathway in which SDDM was realized through the modified Synergetic Neural Network (SNN) was introduced and its assessment indices were confirmed. Finally, the experimental platform with a two-story frame structure was set up. The performances of the proposed methodology were tested for damage identifications by loosening various screw nuts group scenarios. The experiments were conducted in different damage degrees, the disturbance environment and the noisy environment, respectively. The results show the feasibility of SDDM using piezoceramic sensors and actuators, and demonstrate a strong ability of anti-disturbance and anti-noise in frame structure applications. This proposed approach can be extended to the similar structures for damage identification.

About a synergy effect in design and engineering (디자인과 공학의 시너지 효과에 관하여)

  • Park, Sun-Woo
    • Proceeding of KASS Symposium
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    • 2005.05a
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    • pp.69-76
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    • 2005
  • This paper deals with a problem about synergy effect in design and engineering. So far a design processing is paralleled to both in Korea, A cooperation between concept design and working plan must be kept up all the way. From three Personally designed footbridges 1 will make clear a total problem for throughout design processing. If we must solve a gaps between technology and art for structural design, we can get an unexpected result. It will be synergy effect between art and technology, design and engineering.

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Organization of Independent Work of Students of Higher Pedagogical Universities of Ukraine by Means of Moodle

  • Alla, Lukіianchuk;Dmytro, Yefimov;Oksana, Biletska;Andrii, Hrytsenko;Oxana, Hevko
    • International Journal of Computer Science & Network Security
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    • v.22 no.7
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    • pp.421-426
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    • 2022
  • This study aimed to determine the effectiveness of the Moodle system in the organization of independent work of students of pedagogical profile.The purpose of the article is to analyze the Moodle platform as an innovative element of educational and pedagogical strategies and a component of the educational and methodological content for the self-study of students.Methodology is divided into clusters: general scientific (analysis, classification), ICT methods (modeling, informatization), and philosophical (synergetics). The study revealed the reorientation of Moodle from an auxiliary element to an alternative format in the organization of independent work of student teachers. Prospects for further scientific research determined in the interest of all participants in the educational process in the further development of Moodle as an effective tool for self-education of future teachers.