Showing 3,861 - 3,880 results of 18,171 for search 'significantly ((((((we decrease) OR (a decrease))) OR (linear decrease))) OR (teer decrease))', query time: 0.53s Refine Results
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    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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    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. …”
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