A new material developed at Penn State defies a fundamental law of physics, opening doors to highly efficient solar cells.

A novel time-domain wave propagator is introduced. A two-dimensional (2-D) finite-difference time-domain (FDTD) algorithm is used to analyze ground wave propagation characteristics. Assuming an ...

This work presents an extension of the recently developed finite-difference time-domain (FDTD) technique for modeling electromagnetic wave interactions with bianisotropic (BI) media, known as BI-FDTD, ...

What is a heat advisory? A heat advisory is typically issued within 12 to 24 hours when the heat index value is expected to reach between 96 degrees and 104 degrees for two consecutive hours ...

In areas of Bergen, Passaic, Union, Hudson, and Essex counties, covered by the NY Office, the criteria was not listed on the NWS website, but archived criteria shows a heat advisory is issued when ...

An excessive heat advisory is in effect for several New Jersey counties as hot temperatures and high humidity will make feels-like temperatures reach near 100 degrees, a prelude to an impending heat ...