Low frequency load identification under high noise level using weighted total least squares

Xin, Dakuan; Zhu, Junchao; He, Congshuai; Hua, Hongxing

doi:10.1016/j.measurement.2024.115125

Measurement

2024

DOI: 10.1016/j.measurement.2024.115125

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Low frequency load identification under high noise level using weighted total least squares

Dakuan Xin,

Junchao Zhu,

Congshuai He

et al.

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2024

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Cited by 2 publications

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Data-driven coordination of theoretical and practical education in higher education institutions

Wang,

Liu

2024

Applied Mathematics and Nonlinear Sciences

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It is an indisputable fact that there exists a non-integrated phenomenon between educational theory and practice, and educational theory and practice have the correlation of both interdependence and mutual deviation, so how to make the two coordinate and harmonize the development of the two has become a hotspot of the current research. In this paper, under the perspective of evidence-based education, we explore the coordinated development of the two, construct the coordinated index system of theoretical and practical education, and utilize the entropy weighting method to assign weights to the index system. Subsequently, taking School A as an example, the data-driven web crawler technology was utilized to obtain the relevant data, and the internal coordination level and future development trend of its theoretical and practical education were measured by the linear weighting method, the coupled coordination degree model, and the GM(1,1) model, respectively. The results show that the coupling coordination degree of its theoretical and practical education increases from 0.1489 in 2013 to 0.5609 in 2022, and although it maintains an upward posture, the overall values are lower than 0.6, and the coupling coordination level is low. In addition, the level of theory and practice education coordination is showing a continuous upward trend, with an average growth rate of 15.19%, but has shown a slowing trend. The coordinated and healthy development of theory and practice education in higher vocational colleges and universities can be realized from three aspects: enriching the form of theory and practice education activities, strengthening the atmosphere of theory and practice education, and school-enterprise cooperation.

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Data-driven coordination of theoretical and practical education in higher education institutions

Wang,

Liu

2024

Applied Mathematics and Nonlinear Sciences

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Serial–parallel cooperative assembly approach for precision micro-assembly of axial holes

Dong,

Ma,

Cao

et al. 2024

Mech. Sci.

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Abstract. The assembly of high-density axial holes represents a crucial step in integrating highly sophisticated components for electronic equipment. This process faces two primary challenges: stringent precision requirements and the need for robust control during delicate adjustments. Given the miniaturization of components, manual assembly becomes inefficient. To address these challenges, this study introduces a novel dual-robot assembly system. The system incorporates a serial robot for force-controlled compliant assembly of precision axial holes, leveraging joint force sensors for direct force-feedback control to ensure enhanced positional accuracy. Additionally, a parallel robot facilitates precise positional adjustments, with its positioning accuracy further refined through kinematic calibration techniques validated through rigorous simulations. Ultimately, the established dual-robot assembly experimental platform successfully demonstrated the precision assembly of high-density axial holes, offering robust technical support for the precise integration of highly integrated components in electronic equipment.

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Low frequency load identification under high noise level using weighted total least squares

Cited by 2 publications

References 30 publications

Data-driven coordination of theoretical and practical education in higher education institutions

Data-driven coordination of theoretical and practical education in higher education institutions

Serial–parallel cooperative assembly approach for precision micro-assembly of axial holes

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