Showing 5,321 - 5,340 results of 18,768 for search 'significantly ((((((we decrease) OR (a decrease))) OR (mean decrease))) OR (observed decrease))', query time: 0.64s Refine Results
  1. 5321

    The amplitude curve. 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. …”
  2. 5322

    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. …”
  3. 5323

    Finite element modeling of PDC cutter with rock. 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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  17. 5337

    List of the cells used in this study. by Carsten Alexander Baltes (22190513)

    Published 2025
    “…We found no significant change in contractility after MiuA treatment. …”
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    Table 1_Trends and projections of Hepatitis A incidence in eastern China from 2007 to 2021: an age-period-cohort analysis.docx by Hui Peng (116756)

    Published 2024
    “…</p>Conclusion<p>The incidence of Hepatitis A in Jiangsu Province has significantly decreased from 2007 to 2021, primarily due to public health measures and vaccination programs. …”