Megaw, E. C. S. (see following communication). Scott, J. M. C., unpublished memorandum (1944). (I am indebted to the Chief Scientist, Ministry of Supply, and to Mr ...

due to scattering by the atmosphere. A barrier is most effective when placed either very close to the source or to the receiver. It should be remembered that a barrier's performance can be severely ...

There have been dramatic advances in the natural sciences thanks to inventions such as telescopes and microscopes that enable ...

To efficiently compute where waves of light, sound, or earthquakes will go when ... Its minimal memory requirements allowed them to scale up wave scattering calculations by two orders of magnitude ...