12 Enhancement of stress and strain for FRP confined specimens. by Qingwen Li (1510687)

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Principle of FLAC-PFC coupling calculation. by Qingwen Li (1510687)

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Compressive strength of FRP confined CGC. by Qingwen Li (1510687)

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Comparison of experimental and simulation results of GFRP confined specimens. by Qingwen Li (1510687)

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Crack propagation characteristics in the failure of GFRP confined coal gangue concrete. by Qingwen Li (1510687)

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14 Elastic modulus of FRP confined CGC. by Qingwen Li (1510687)

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FRP sheets wrapped specimen. by Qingwen Li (1510687)

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Mesoscopic parameters of PFC3D-FLAC3D coupling model. by Qingwen Li (1510687)

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11 Stress-strain curves of FRP confined specimens. by Qingwen Li (1510687)

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The schematic of the mechanism of action. by Qingwen Li (1510687)

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21 Crack propagation characteristics in the failure of BFRP confined coal gangue concrete. by Qingwen Li (1510687)

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The number of strong contact and strong contact force of GFRP confined concrete specimens under three coal gangue replacement rates (0%, 50%, 100%). by Qingwen Li (1510687)

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Coal gangue concrete specimens. by Qingwen Li (1510687)

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20 Crack propagation characteristics in the failure of CFRP confined coal gangue concrete. by Qingwen Li (1510687)

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Elastic modulus of FRP confined CGC. by Qingwen Li (1510687)

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GFRP confined concrete specimens. by Qingwen Li (1510687)

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The number of strong contact and strong contact force of BFRP confined concrete specimens under three coal gangue replacement rates (0%, 50%, 100%). by Qingwen Li (1510687)

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13 Compressive strength of FRP confined CGC. by Qingwen Li (1510687)

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Model test results. by Xiaoyu Wan (644814)

“…It is found that: (1) the scale and vitality of China’s digital technology innovation have increased significantly, and there are obvious spatial differentiation characteristics, and the innovation level of "eastern coastal—central and western interior" is decreasing, forming a cluster distribution pattern in the Yangtze River Delta region, Beijing, Guangdong, and other places, and the degree of agglomeration is decreasing. (2) The overall regional differences in China’s digital technology innovation are large, the differences between the East and the West dominate the interregional differences, and the net differences between regions are the main factors leading to regional differences. (3) There is a significant positive spatial correlation between the scale and vitality of digital technology innovation, which has a significant spatial spillover effect. (4) The results confirm that the level of economic development, digital access, financial scientific and technological support, technology market development level, and R&D intensity have a significant positive impact on the scale and vitality of digital technology innovation; The investment in scientific and technological talents has a significant positive impact on the scale of digital technology innovation, but has no significant impact on the vitality of digital technology innovation.…”

Multicollinearity and Significance Testing for Model Variable Selection. by Sakib Hosan (22566685)