Showing 161 - 180 results of 29,387 for search '(( significant large increases ) OR ( significant processes decrease ))', query time: 0.75s Refine Results
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    The large diameter offshore drilling platform. by Weikuan Wang (17480939)

    Published 2023
    “…The results show that the eight-legged supporting structure can intercept and divert water flow, eliminating the impact of the water flow on the main piles during large waves. Additionally, as the diameter of the structure increases under the same wave conditions, the influence of the base volume and surface curvature gradually increases, deteriorating the stress environment of the main pile and decreasing the supporting effect of the eight-legged support structure. …”
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    The stress-strain curve in rock failure process. by Ruocheng Zhang (20442445)

    Published 2024
    “…As the ultrasonic vibration frequency (20–40kHz) increases, the mechanical specific energy (MSE) initially decreases and then increases. The MSE reaches a minimum value at a frequency of 20–25 kHz, representing a decrease of 15.52%–22.24% compared with conventional rock breaking, which can significantly improve the rock breaking efficiency and reduce the drilling cost. …”
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