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The Use of Ultrasound Methods to Detect
Heart Model Supported in Organ Culture
The Role of Collagen in Determining
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Acoustical Holography algorithm amplitude analysis angle approximately attenuation axis B-scan beam beamforming breast chirp circuit collagen correlation correlation function delay line detected device diameter diffraction echoes effect electronic elements equation experimental field filter flaws focal plane focused Fourier transform Fresnel function HAMMING WEIGHTING hologram hydrophone IEEE input integral intensity laser length lens lenses linear measured medium method Midori-Ku mode modulation noise object obtained operation optical output pattern photoconductive piezoelectric plane wave plate Plenum Press point spread function processing propagation pulse range Rayleigh waves receiver reconstructed image reference refraction refractive index resolution sample scan velocity shown in Figure shows side lobe signal simulation sonar sound spacing spatial frequency spectrum structures surface synthetic aperture synthetic aperture sonar target technique thickness tion tissue transducer transducer array ultrasonic imaging ultrasound voltage wavefront wavelength width