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- 저자 : Ziyou Zhou (검색결과 2 건)
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Ziyou Zhou,Wenhua Chen,Ce Yang 대한기계학회 2023 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.37 No.11
The optimized variational modal decomposition (VMD) algorithm is widely used in the diagnosis of rolling bearing faults. However, the subjectivity of the optimization range can compromise the effect of fault feature extraction under strong background noise (SBN). To enhance the fault diagnosis accuracy of rolling bearings under SBN, an adaptive range selection for parameter optimization of the VMD algorithm was developed. The proposed algorithm utilizes a method based on peak spectral clustering and center frequency to determine the optimal range of mode number and penalty factor. An optimization process based on the weighted kurtosis spectrum L 2 /L 1 norm is then employed as the fitness function to obtain the optimal values of modes and penalty factor. Experimental results have demonstrated that the proposed method achieves a 20.02 % increase in fault diagnosis accuracy compared to the classical adaptive variational mode decomposition (AVMD) method.
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周子又(Ziyou Zhou) YIXIN 출판사 2024 教育教学研究论丛 Vol.2 No.3
本文立足于新时代背景下外语教材建设的内涵,聚焦高校韩语教材建设的具体路径,围绕课程思政,新文科建设,数字化转型三个方面探讨高校韩语教材建设如何完成外语教材肩负的时代使命:第一,如何将中华文化有机融入高校韩语教材;第二,高校韩语教材建设如何适应跨学科要求,实现学科间的交叉融合;第三,如何建设高校韩语数字化教材。通过对这些问题的探讨,期望能为新时代外语教材建设的相关学术研究及实践探索提供借鉴和启示。 This article is based on the connotation of foreign language teaching material construction in the context of the new era, focuses on the specific path of Korean language textbook construction in colleges and universities, and explores how the construction of Korean language textbook in colleges and universities can fulfill the mission of the times shouldered by foreign language teaching materials from three aspects: curriculum ideology and politics, new liberal arts construction, and digital transformation: First, how to organically integrate Chinese culture into Korean language textbooks in colleges and universities; second, how to build Korean language textbooks in colleges and universities to adapt to interdisciplinary requirements and achieve cross-integration between disciplines; and third, how to build digital Korean language textbooks in colleges and universities. Through the discussion of these issues, we hope to provide reference and inspiration for related academic research and practical exploration of foreign language teaching material construction in the new era.
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