Crack characteristics of sandstone subjected to 0 freeze-thaw cycles at loading rate of 0.05mm/min. (a) <i>t</i>_<i>p</i>-49.19s, (b) <i>t</i>_<i>p</i>-12.03s,... حسب Wenyu Lv (20139458)

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Crack characteristics of sandstone subjected to 70 freeze-thaw cycles at a loading rate of 0.20mm/min. (a) <i>t</i>_<i>p</i>-107.3s, (b) <i>t</i>_<i>p</i>-15.26... حسب Wenyu Lv (20139458)

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Variation law of RA and AF in sandstone with different freeze-thaw cycles under a loading rate of 0.20mm/min. حسب Wenyu Lv (20139458)

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(a) 48 sandstone samples used in this experiment, (b) ZYB-II vacuum pressurized water saturation device, (c)static strain gauge, (d) diagram of experimental system, including uniax... حسب Wenyu Lv (20139458)

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Stress-strain curves of four groups of typical sandstone samples. حسب Wenyu Lv (20139458)

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Crack characteristics of sandstone subjected to 70 freeze-thaw cycles at a loading rate of 0.05 mm/min. (a) <i>t</i>_<i>p</i>-100.01s, (b) <i>t</i>_<i>p</i>-19.... حسب Wenyu Lv (20139458)

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Variation law of RA and AF in sandstone with different freeze-thaw cycles under a loading rate of 0.05mm/min. حسب Wenyu Lv (20139458)

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Variation law of AE events rate of sandstone under different freeze-thaw cycles at a loading rate of 0.05 mm/min. حسب Wenyu Lv (20139458)

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Variation law of attenuation constant of sandstone with different loading rates. حسب Wenyu Lv (20139458)

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Variation law of AE <i>b</i>-value of sandstone under different freeze-thaw cycles at a loading rate of 0.20mm/min. حسب Wenyu Lv (20139458)

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Detailed table of sandstones mechanical parameters change. حسب Wenyu Lv (20139458)

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Stress-strain curves of freeze-thaw cycling sandstone under different loading rates. حسب Wenyu Lv (20139458)

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Crack characteristics of sandstone subjected to 0 freeze-thaw cycles at loading rate of 0.20 mm/min. (a)<i>t</i>_<i>p</i>-29.84s, (b) <i>t</i>_<i>p</i>-5.32s, (... حسب Wenyu Lv (20139458)

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Comparison of UCS tests and models of sandstone under different loading rates and freeze-thaw cycles. حسب Wenyu Lv (20139458)

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Variation law of AE <i>b</i>-value of sandstone under different freeze-thaw cycles at a loading rate of 0.05 mm/min. حسب Wenyu Lv (20139458)

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Variation law of AE events rate of sandstone under different freeze-thaw cycles at a loading rate of 0.05 mm/min. حسب Wenyu Lv (20139458)

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Variation law of UCS. حسب Wenyu Lv (20139458)

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Migration map of the center of gravity of older adults’ health level in the Yangtze River Economic Belt. حسب Mengmeng Yang (475288)

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GTWR results of factors affecting the health level of older adults in the Yangtze River Economic Belt. حسب Mengmeng Yang (475288)

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Interaction hotspot maps of influencing factors on older adults’ health level in the Yangtze River Economic Belt. حسب Mengmeng Yang (475288)

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