Sunbeams through the windows illuminate floating dust motes—and, imperceptibly, microdroplets of mucus carrying the measles virus, expelled from an infected but asymptomatic child who is hopping and ...

Biffy Clyro se minulý rok po pauze znovu přihlásili o slovo se svou desátou studiovkou "Futique". Na albu se nebáli otevřít témata osobních i kapelních problémů a naživo jej poprvé představili během e ...

IPP荣誉教授梅里·马达沙希认为，由于人类活动导致的气候变暖，包括格陵兰岛在内北极地区不仅正经历着前所未有的环境与地貌变化，也在迅速转变为一个充满地缘政治、经济与军事竞争的关键区域。随着各国在此纷纷展开战略布局，北极正在成为全球风险的“放大器”。马达 ...

研究者开发的滤波器实现了低至2.54 dB的插入损耗、高达663 MHz的带宽、覆盖7.08 GHz至21.6 GHz多个倍频程的中心频率调谐范围，以及通带内输入三阶截点大于11 dBm的高线性度。他们还通过频率可调无线电系统实验验证了该滤波器的运行性能。

On Wednesday, China successfully conducted a low-altitude demonstration and verification flight test of the Long March-10 carrier rocket, along with a maximum dynamic pressure abort flight test of its ...

On Wednesday, China successfully conducted a low-altitude demonstration and verification flight test of the Long March-10 ...