Mathematicians from the University of Utah have developed a new mathematical theory that could explain how waves and other disturbances in the universe move through materials in varying conditions of ...

Mathematicians propose a theoretical framework to understand how waves and other disturbances move through materials in conditions that vary in both space and time. The theory is called 'field ...

ABSTRACT.Axially symmetric telescopes produce well-known Seidel off-axis third-order aberration patterns: coma, astigmatism, curvature of field, and distortion. When axial symmetry is broken by the ...

A U.S. Army soldier displays the new camouflage uniform soldiers can start buying on July 1. U.S. Army photo A U.S. Army soldier displays the new camouflage uniform soldiers can start buying on July 1 ...

Microwave antennas used for communications systems such as wireless local area networks. The antennas operate at frequencies up to 60 GHz at distances of 2 km to 3 km. Find a way to test microwave ...

An NPA, resembling its radiofrequency counterpart, consists of several typically identical optical antennas. Each antenna emits light of a specific amplitude and phase to form a desired far-field ...

The authors are president and vice president, respectively, of Communications Technologies Inc., a consultancy in Marlton, N.J. Fig. 1: Measured vertical (purple) and horizontal (blue) field strength ...