harmonic attenuation

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• Total harmonic distortion — The total harmonic distortion, or THD, of a signal is a measurement of the harmonic distortion present and is defined as the ratio of the sum of the powers of all harmonic components to the power of the Fundamental frequency.Lesser THD, for… …   Wikipedia

• Second harmonic imaging microscopy — (SHIM) is based on a nonlinear optical effect known as second harmonic generation (SHG). SHIM has been established as a viable microscope imaging contrast mechanism for visualization of cell and tissue structure and function. A second harmonic… …   Wikipedia

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• Otto Julius Zobel — Born October 20, 1887(1887 10 20) Ripon, Wisconsin Died January 1970 (age 82) Morristown, New Jersey …   Wikipedia

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