Abstract: Expressions for the ideal free-space backprojected image of an object with known transition matrix (T-matrix) are derived for scalar and vector electromagnetic waves in bistatic and ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

Adjacent speakers exert different forces on the material based on how the sound waves reflect off it, and by carefully targeting the floating or submerged metamaterial with precise sound waves ...

Each fiber has a small transmitter at one end that emits sound waves, while the opposite end is connected to a receiver that detects any changes in these waves. Because each transmitter operates ...

Credit: ETH Zurich The researchers have woven glass fibers into the fabric at regular intervals. At one end of each glass fiber is a small transmitter that emits sound waves. The other end of each of ...