When generalized to an ionosphere with known virtual height, the secant law applicable to the plane geometry must be modified for application to the spherical geometry. In this regard, a correction ...
What began with a focus on weather forecasting has evolved toward addressing errors in scientific modeling. In the collaborative environment of the Penn State Institute for Computational and Data ...
For ENR’s special February 3, 2025, issue highlighting the winners of our annual Year in Construction photo contest, we want your help in selecting our cover photo! In this poll, we are ...