11月29日,国际高水平期刊《Science》刊发了北京工业大学材料科学与工程学院安全福教授团队的科研成果《Aromatic-aliphatic hydrocarbon separation with oriented monolayer ...
多环芳烃(PAHs)是含有相邻芳环的有机分子。红外发射波段表明,多环芳烃在太空中是丰富的,但在星际介质中只检测到少数特定的多环芳烃。研究者利用绿岸望远镜对致密星云TMC—1进行射电观测,发现了1—氰芘,一种四环多环芳烃芘相关的氰基取代衍生物。
Two different space telescopes have looked at the same galaxy, so you can see the difference in how they observe the universe ...
近日,一项由北京大学、加利福尼亚大学洛杉矶分校与杜克大学的联合研究揭示了中国的大气污染物防治措施对多环芳烃污染及人体暴露的影响,相关成果以“Reduction in polycyclic aromatic hydrocarbon exposure ...
The James Webb Space Telescope just captured a gorgeous image of the Sombrero galaxy. This cluster now looks more like an ...
Not far from one of Athens’ busiest highways, passing motorists stop and stare at the bucolic agricultural scene going on in ...
The Sombrero galaxy, which is about the size of the Milky Way, is positioned some 30 million light-years away. The Webb ...