The Poynting vector includes time-independent contributions which, since they represent photons of zero frequency, need to be absent; this removal resolves several paradoxes that arise when they are ...

In a new study published in The Astrophysical Journal, a researcher from The University of Alabama in Huntsville (UAH), a part of the University of Alabama System, explores critical aspects of a ...

Abstract: A reflector beam shaping method is presented, which includes an efficient algorithm. This efficient algorithm based on the Poynting vector tracing method is employed to analyze the procedure ...

1 Key Lab of Submarine Geoscience and Prospecting Techniques, Ministry of Education, Ocean University of China, Qingdao, China 2 Evaluation and Detection Technology Laboratory of Marine Mineral ...

Reverse time migration (RTM) is based on the two-way wave equation, so its imaging results obtained by conventional zero-lag cross-correlation imaging conditions contain a lot of low-wavenumber noises ...

ADELPHI, Md. --Imagine a small aerial drone navigating a field with electrical power lines. How will it see them? More importantly how will it avoid this significant obstacle in its flight path? At ...