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喷水引纬角工艺的探讨 被引量:1
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作者 张维军 《丝绸》 CAS 北大核心 1994年第4期39-41,共3页
引纬角是喷水织造过程中的重要工艺,它直接影响到织物的质量和生产效率。针对不同品种的织物,引纬角宜作适当的调整,以期达到良好的引纬效果。
关键词 引纬角 喷水织机 丝织 工艺
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Astronomic background of global huge earthquakes at beginning of 21st century
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作者 Hu Hui Su You-Jin 《Applied Geophysics》 SCIE CSCD 2024年第3期423-432,616,共11页
Since the beginning of the 21st century,major earthquakes have frequently occurred worldwide.To explore the impact of astronomical factors on earthquakes,in this study,the statistical analysis method of correlation is... Since the beginning of the 21st century,major earthquakes have frequently occurred worldwide.To explore the impact of astronomical factors on earthquakes,in this study,the statistical analysis method of correlation is used to systematically analyze the effects of astronomical factors,such as solar activity,Earth’s rotation,lunar declination angle,celestial tidal force,and other phenomena on M≥8 global earthquakes at the beginning of the 21st century.With regard to solar activity,this study focuses on the analysis of the 11-year and century cycles of solar activity.The causal relationship of the Earth’s rotation is not obvious in this work and previous works;in contrast,the valley period of the solar activity century cycle may be an important astronomical factor leading to the frequent occurrence of global earthquakes at the beginning of the 21st century.This topic warrants further study. 展开更多
关键词 M≥8.0 earthquake astronomical factors solar activity Earth’s rotation lunar declination angle tidal force phenomena
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