来自用户 燕赵孤侠 的文献。
当前共找到 4 篇文献分享。
1.
燕赵孤侠
(2025-05-30 14:15):
#paper doi:10.1126/science.adk6635, Returned samples indicate volcanism on the Moon 120 million years ago
之前,我们都觉得月球早就没有活动了,像个死寂的大石头,没想到这篇研究直接打脸 —— 人家 1.2 亿年前还在 “冒火” 搞火山活动呢!
研究团队这次用了超精准的年代测定技术。以前测岩石年龄误差不小,这次靠质谱分析,直接把误差范围缩得超小,还多管齐下交叉验证数据,这波操作简直是科研界严谨的到极致,也给以后研究太空指了条明路。
从这篇论文我特别有感触,科学探索真是永无止境。以前以为铁板钉钉的结论,碰上新技术、新方法,瞬间被颠覆。所以搞研究真不能墨守成规,得大胆创新。而且研究团队这种死磕细节、精益求精的精神,太值得学习了,这才是推动科学进步的关键。
Science,
2024-9-6.
DOI: 10.1126/science.adk6635
Abstract:
There is extensive geologic evidence of ancient volcanic activity on the Moon, but it is unclear how long that volcanism persisted. Magma fountains produce volcanic glasses, which have previously been …
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There is extensive geologic evidence of ancient volcanic activity on the Moon, but it is unclear how long that volcanism persisted. Magma fountains produce volcanic glasses, which have previously been found in samples of the Moon’s surface. We investigated ~3000 glass beads in lunar soil samples collected by the Chang’e-5 mission and identified three as having a volcanic origin on the basis of their textures, chemical compositions, and sulfur isotopes. Uranium-lead dating of the three volcanic glass beads shows that they formed 123 ± 15 million years ago. We measured high abundances of rare earth elements and thorium in these volcanic glass beads, which could indicate that such recent volcanism was related to local enrichment of heat-generating elements in the mantle sources of the magma.
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2.
燕赵孤侠
(2025-04-28 11:49):
#paper doi: CNKI:SUN:HJGL.0.2012-01-024,2012, 《环境空气质量标准》,环境空气质量标准是守护我们蓝天白云的尺子,也是守护公众健康的核心依据。这篇论文围绕标准的制定背景、技术框架、实施成效及优化路径展开研究,系统梳理了我国空气质量管控的科学逻辑与实践脉络,对大气污染治理的复杂性、科学性与紧迫性有了更深刻的认知。
如何做到科学性,这是需要依托长期监测数据、跨学科所研究出来的成果
如何与经济发展双向奔赴,这需要为未来产业升级、技术进步预留空间,实现既要又要的成果
所面临的挑战,区域差异显著、监测网络覆盖不足、执法效能待提升等
总结,唯有持续优化标准、强化执行、凝聚共识,才能让 “蓝天白云” 成为常态,为美丽中国建设筑牢生态根基。
3.
燕赵孤侠
(2025-03-31 11:26):
#paper doi:10.3969/j.issn.1000-0844.2014.03.0599 《川滇地区中小地震震源机制解及构造应力场的研究 》
对于川滇地区底壳环境,他们算出哪些断层现在压力大,再结合以往压力模型,能像天气预报一样实时盯着这些高危地段。能快速判断今年发生的地震是滑着走还是上下跳。就是要要给川滇地壳做了个健康监测系统,做到对防灾减灾心里更有数
4.
燕赵孤侠
(2025-02-28 16:27):
#paper doi:10.1016/j.scitotenv.2023.168081 2024 Combining large-scale investigation and quantum chemical calculation of pharmaceuticals: Spatiotemporal patterns of occurrence and structural insights into removal。提出出了一种新的搞环境治理的模式——环境治理科学化,就是靠数据和计算,搭建起一条完整的线,从观察环境情况,到模拟分析,再到做出治理决策。目的就是要让环境治理从以前那种被动等着污染出现了再去处理,变成主动预防污染;从以前那种比较粗糙、大概的管控,变成精准地去干预。后期把 AI 加进来,能让这个新模式更快地发展。AI 可以通过智能模型,打破数据和计算之间的障碍。比如说,AI 能直接从数据里找出分子行为的规律。这么一来,最后就能搞出一个更高效、花更少钱的污染防控系统。