Atomistic insights into strain localization at basal twist grain boundaries in hexagonal close-packed metals

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Fri, 20 Feb 2026 20:32:04 UTC (381 KB)

Webb's sharper view also hints at possible jets from the central star. The dark lane and the way gas appears to push outward near the top of the nebula suggest an ejection that may be shaping the cloud's symmetry, a common feature when aging stars throw material in opposite directions.

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Point-in-time recovery — reconstruct files at any historical snapshot, not just the latest

货郎图早见于南宋李嵩所绘,其传世作品有4幅,尺幅都较小。明代继承并发展了这类绘画主题。目前所见,明代货郎图有近20件,其风格样式与南宋画作有所区别:一是尺幅变大,其几乎全为挂轴形制,当系悬挂张贴装饰之用;二是设色艳丽,货郎衣着华贵;三是发展出了成组的四景货郎图,或只表现单一品目(如鸟类)的货郎图。

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