科普:奥密克戎毒株为何“需要关注”,现有防疫工具是否有效
Although initially linked to Gauteng, the variant did not necessarily originate there. The earliest sample showing the variant was collected in Botswana on 11 November. Scientists say that the unusual constellation of mutations suggests it may have emerged during a chronic infection of an immunocompromised person, such as an untreated HIV/Aids patient.
高熵合金首见新机制!极端载荷条件下实现结构转变
研究成果以“Amorphization in extreme deformation of the CrMnFeCoNi high-entropy alloy”为题发表于顶级期刊《ScienceAdvances》中。
美国独门稀土分离技术,或改变稀土、铀游戏规则?
今天看到一家美国公司发明了一种新的矿物分离技术,可以大幅提高稀土、铀等矿物的分离效率,降低成本,减少污染。
学科前沿:高水平国际期刊地学论文导读
Genetic model of the El Laco magnetite-apatite deposits by extrusion of iron-rich melt。
国际原子能机构如何评估战火中的扎波罗热核电站?欧洲最大核电站安全吗?
在完成短暂考察后,国际原子能机构发布了俄乌冲突下首份关于欧洲最大核电站安危的报告。据新华社报道,国际原子能机构对乌克兰扎波罗热核电站的安全情况表示严重关切,呼吁在核电站区域设立“核安全保护区”。
中科院半导体所金鹏团队:成功破解异质外延金刚石厚膜开裂难题
近期,中科院半导体所金鹏团队在 Functional Diamond发表题为 《Growth evolution and stress distribution in heteroepitaxial diamond with laser-patterned templates》 的研究论文,系统揭示了激光刻槽模板如何调控异质外延金刚石的生长演化与应力分布,为实现毫米级无裂纹自支撑单晶金刚石提供了新机制。
科普:奥密克戎毒株为何“需要关注”,现有防疫工具是否有效 Omicron: everything you need to know about new Covid variant
Although initially linked to Gauteng, the variant did not necessarily originate there. The earliest sample showing the variant was collected in Botswana on 11 November. Scientists say that the unusual constellation of mutations suggests it may have emerged during a chronic infection of an immunocompromised person, such as an untreated HIV/Aids patient.
特别关注|USCG强烈建议采取七项预防措施
船舶燃油系统如果受到水分和其他污染物的影响可能会对船舶运行造成危害,无论是国际航行的大型商船还是内水运营的拖船和休闲船艇,都必须确保供应不含水分和污染物的燃料,否则可能会造成严重灾难。针对这个问题,近期美国海岸警卫队(USCG)发布了一份安全提示。