Astronomers from the University of Turku in Finland and elsewhere have performed a broadband spectral and timing study of an ...

Sign Out ADVANCED SEARCH Journals & Magazines > IEEE Antennas and Wireless Pr... > Volume: 24 Issue: 5 Locally Optimal Periods in Periodic Optically Transparent Two-Metal-Layered Refractive ...

This paper demonstrates that unit cell asymmetry with respect to the transversal axis —or transversal asymmetry— is an essential design parameter in periodic leaky-wave antennas (P-LWAs). Specifically ...

A longstanding mystery of the periodic table involves a group of unique elements called lanthanides. Also known as rare earth ...

Find out which football teams are leading the pack or at the foot of the table in the Eredivisie on BBC Sport ...

Quick geology lesson: There are 17 types of rare earths, and they’re used as the building blocks in cars, semiconductors, missiles, drones, and more. China mines 70% and processes 90% of the ...

Quick geology lesson: There are 17 types of rare earths, and they’re used as the building blocks in cars, semiconductors, missiles, drones, and more. China mines 70% and processes 90% of the world’s ...