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    Study on Distribution Law of Ground Stress in Main Coal Seam of Qinshui Coalfield by Feng Youliang, Wu Longyun

    Published 2025-01-01
    “…With increasing depth, the following trends can be observed approximately: the maximum and minimum horizontal principal stress values generally exhibit an increasing trend, and the geological structures throughout the mining area are primarily dominated by horizontal tectonic movements; the lateral pressure ratio gradually decreases and tends to concentrate near the value of 1; the relative difference between the maximum and minimum principal stresses tends to increase, with the horizontal principal stress difference ratio concentrating near 0.5. …”
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    Free Vibration Analysis of Arbitrary-Shaped Plates Based on the Improved Rayleigh–Ritz Method by Wenjie Guo, Qingsong Feng

    Published 2019-01-01
    “…In this investigation, an improved Rayleigh–Ritz method is put forward to analyze the free vibration characteristics of arbitrary-shaped plates for the traditional Rayleigh–Ritz method which is difficult to solve. …”
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