Search Results - "Rao, N. A. H. K."

Investigation of a pulse compression technique for medical ultrasound : a simulation study by RAO, N. A. H. K

“…Pulse compression techniques that are capable of producing a large signal-to-noise (SNR) enhancement, have been used successfully in many different fields. For…”
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Combining pulse compression and adaptive drive signal design to inverse filter the transducer system response and improve resolution in medical ultrasound by VENKATRAMAN, S, RAO, N. A. H. K

“…An adaptive inverse filtering technique has been incorporated into a medical ultrasound B-scan scheme that used a linear frequency modulated pulse for imaging…”
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Spatial averaging in the beam of a piston transducer by Daly, C J, Rao, N A

“…This paper presents a theoretical analysis of the spatially averaged free-field responses of phase-sensitive and phase-insensitive receivers centered in the…”
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The arccos and Lommel formulations—Approximate closed-form diffraction corrections by Daly, Charles J., Rao, N. A. H. K

“…A closed-form frequency-domain formalism for spatially integrated diffraction corrections is proposed. Spatially integrated diffraction corrections are…”
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A spatially averaged impulse response for an unfocused piston transducer by Daly, Charles J., Rao, N. A. H. K.

“…Fourier–Bessel theory is used to derive a closed-form solution for the spatially averaged velocity-potential impulse response associated with one-way…”
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Thermodynamic transition of small superconducting particles by RAO, N. A. H. K, GARLAND, J. C, TANNER, D. B

“…Measurements are presented which show that the specific heat of small Sn particles exhibits a BCS-like structure at the superconducting transition even if the…”
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Evaluation of a pulste coding technique for spacial structure characterization : Special issue on correlation techniques and applications in ultrasonics by RAO, N. A. H. K, AUBRY, M

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Time- and frequency-domain descriptions of spatially averaged one-way diffraction for an unfocused piston transducer by Daly, Charles J., Rao, N.A.H.K.

“…Time-domain and frequency-domain expressions describing spatially averaged effects of one-way diffraction in the case of an unfocused piston transmitter and…”
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Experimental point spread function of fm pulse imaging scheme by Rao, N A, Mehra, S, Bridges, J, Venkatraman, S

“…In this paper, we have examined the possibility of incorporating pulse compression techniques into a conventional medical B-scan imaging scheme. Linear…”
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Fluctuation heat capacity of amorphous Nb3Ge films by Rao, N. A. H. K., Goldman, A. M.

“…The temp. dependencies of the heat capacities of amorphous Nb3Ge films have been measured near the superconducting transition using a.c. calorimetry. From an…”
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Thermodynamic and Resistive Transitions of Thin Superconducting Films by Rao, N. A. H. K., Dahlberg, E. D., Goldman, A. M., Toth, L. E., Umbach, C.

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