During femtosecond laser fabrication, photons are mainly absorbed by electrons, and the subsequent energy transfer from electrons to ions is of picosecond order. Hence, lattice motion is negligible ...
The UN’s 75th anniversary in 2020 arrived at a time of great upheaval and peril. If the world is to recover from COVID-19 and we are to deliver on our promises to future generations - to secure a ...
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