المؤلفون: Gragg, Robert F.

المساهمون: NAVAL RESEARCH LAB WASHINGTON DC ACOUSTICS DIV

المصدر: DTIC AND NTIS

مصطلحات موضوعية: Radiofrequency Wave Propagation, Numerical Mathematics, Acoustics, TRANSFORMATIONS(MATHEMATICS), WAVE PROPAGATION, PARABOLAS, UNDERWATER ACOUSTICS, DUCTS, DENSITY, SYSTEMS APPROACH, HELMHOLTZ EQUATIONS, ENERGY CONSERVATION, SPLITTING, MEMBRANES, MATRICES(MATHEMATICS), CONTINUOUS WAVES, WAVEGUIDES, PARABOLIC PROPAGATION, PE(PARABOLIC EQUATIONS), ODER-BY-ORDER DECOUPLING, FOLDY-WOUTHUYSEN TRANSFORMATIONS

وصف الملف: text/html

العلاقة: http://www.dtic.mil/docs/citations/ADA439175Test

الإتاحة: http://www.dtic.mil/docs/citations/ADA439175Test
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA439175Test

المؤلفون: Jensen, Finn B., Kuperman, William A.

المصدر: In: Journal of the Acoustical Society of America 67 (5), 1980: 2564-15661.

مصطلحات موضوعية: Acoustic propagation, Parabolic propagation, Differential equations, Parabolic, Parabolic equations

وصف الملف: 6 p. : ill.

العلاقة: ADA091338; 1818; SR-38; http://hdl.handle.net/20.500.12489/257Test

الإتاحة: https://doi.org/20.500.12489/257Test
https://hdl.handle.net/20.500.12489/257Test

المؤلفون: Goodman, Ralph R., Duykers, Ludwig R. B.

مصطلحات موضوعية: Underwater acoustics, Acoustic propagation, Ray acoustics, Parabolic propagation, Sound velocity in sea water

وصف الملف: 10 p. : ill.

العلاقة: AD0808753; 2301; TR-7; http://hdl.handle.net/20.500.12489/317Test

الإتاحة: https://doi.org/20.500.12489/317Test
https://hdl.handle.net/20.500.12489/317Test