小画像 发表于 2025-3-25 03:37:06
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Tracking the Source of Quispisisa Type Obsidian from Huancavelica to Ayacuchoeir taste for fine chipping material led obsidian to be exchanged over a vast area of the highlands and adjacent coast for over ten thousand years. Despite its rarity, artifacts made of obsidian have been recovered in many of the oldest known sites in both the coast and highlands of Peru (Burger and慢慢冲刷 发表于 2025-3-25 13:16:29
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Transforming Work Practices in a Complex Environmentme possible directions for introducing new technologies. Work in intensive care is approached as a set of complex and networked practices that are characterized by dynamism and reflexivity of situated action. We observed how, in the intensive care unit, the emerging issues and complexity of organiza牢骚 发表于 2025-3-25 20:31:29
High Mechanical Properties of Nickel-Based Superalloy with Dispersed Nanoparticles Formed by Laser Metal Deposition,dispersing nanoparticles in them should enhance their performance. However, this remains difficult to do during laser additive manufacturing. Here, we show that Nickel-based superalloy reinforced by nanoparticles can be deposited via laser melting of nanocomposite powders. Laser deposited nanocompos勉励 发表于 2025-3-26 00:18:30
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