Zobrazeno 1 - 10
of 133
pro vyhledávání: '"V. Twersky"'
Autor:
V, TWERSKY
Publikováno v:
The Biological review of the City College. 9(1)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::44d3150a714ef3d2ce676b32cce74c10
https://pubmed.ncbi.nlm.nih.gov/20287811
https://pubmed.ncbi.nlm.nih.gov/20287811
Publikováno v:
Applied optics. 7(12)
Theory and prototype (at wavelength lambda = 5 mm) partial coherence scattering data for optical applications in diagnostic measurements on two component suspensions or gases are presented. Results are given for equal volume mixtures of two sizes of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1168517cbfd6435b4e71276edcf185ef
https://pubmed.ncbi.nlm.nih.gov/20069011
https://pubmed.ncbi.nlm.nih.gov/20069011
Autor:
N. E. Berger, V. Twersky
Publikováno v:
The Journal of the Acoustical Society of America. 89:604-616
Expressions for underwater propagation in bubble regions based on the index of refraction (η) in uncorrelated random distributions of monopole resonators are restricted to sparse bubble packing (very small volume fraction w). As w increases, correla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::090936d81b804640dd9f112bc9a419f5
https://doi.org/10.1121/1.400385
https://doi.org/10.1121/1.400385
Autor:
Neil Berger, V. Twersky
Publikováno v:
Journal of Statistical Physics. 61:1187-1201
A simple recursive relation is derived for the momentsM n ,n=1, 2,..., of the Percus-Yevick correlation functionh(r) for identical hard spheres. TheMn are rational functions of the volume fractionw occupied by the spheres; the first ten are given exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9095611c8651fc2d374a92ce59ea000d
https://doi.org/10.1007/bf01014371
https://doi.org/10.1007/bf01014371
Autor:
V. Twersky, C. Beard
Publikováno v:
WESCON/58 Conference Record.
Part I Theory, and Design of "Macroscopic Gas" A general theory for propagation through random distributions of arbitrary objects is applied to treat "gases" of spheres large compared to wavelength. In order to use microwaves to determine the range o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84f9a582728839a0d1fad02a5c97a2f4
https://doi.org/10.1109/wescon.1958.1150199
https://doi.org/10.1109/wescon.1958.1150199
Publikováno v:
The Journal of the Acoustical Society of America. 89(3)
Recent results for low-frequency scattering by polydisperse distributions of correlated low-refracting particles averaged over orientation are analyzed numerically. The roles of shape and correlations (parameterized by c) and polydispersity (specifie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::689d8cf1c890e05a16e5b4232e8ad280
https://pubmed.ncbi.nlm.nih.gov/2030227
https://pubmed.ncbi.nlm.nih.gov/2030227
Autor:
R. J. Lucas, V. Twersky
Publikováno v:
The Journal of the Acoustical Society of America. 81:619-623
Data obtained by Medwin and D’Spain [J. Acoust. Soc. Am. 79, 657 (1986)] for low‐frequency propagation over gravel‐covered rigid planes are inverted by applying the procedure [J. Acoust. Soc. Am. Suppl. 1 79, S68 (1986)] developed for regularly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aaee4dd7b025b20c0501561301b6bd06
https://doi.org/10.1121/1.395115
https://doi.org/10.1121/1.395115
Autor:
R. J. Lucas, V. Twersky
Publikováno v:
The Journal of the Acoustical Society of America. 80:1459-1472
We apply our results for the coherent response to a point source irradiating an embossed plane [J. Acoust. Soc. Am. 76, 1847 (1984)] to interpret and invert data obtained by Medwin et al. [J. Acoust. Soc. Am. 76, 1774 (1984)]. As emphasized earlier [
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14fb91b7dd662033020ce5a6666ca236
https://doi.org/10.1121/1.394401
https://doi.org/10.1121/1.394401
Autor:
V. Twersky, R. J. Lucas
Publikováno v:
The Journal of the Acoustical Society of America. 76:1847-1863
We consider a point source of sound exciting a planar rough surface, and write the coherent response as the Sommerfeld‐Weyl integral in terms of the reflection coefficient (R) for correlated distributions of protuberances (bosses) on rigid or free
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4cce5911bbb84e0e04c44c5178e56261
https://doi.org/10.1121/1.391485
https://doi.org/10.1121/1.391485
Autor:
V. Twersky, R. J. Lucas
Publikováno v:
The Journal of the Acoustical Society of America. 78:1838-1850
Earlier low‐frequency results for scattering and reflection by random distributions of relatively arbitrary bosses on rigid or free base planes are applied numerically to completely rigid or free ellipsoidally embossed isotropic and anisotropic sur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c902d7cff9631eb2b1e7295762fd291
https://doi.org/10.1121/1.392770
https://doi.org/10.1121/1.392770