Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Joseph E. Murphy"'
Autor:
Camilla Lieske, Anna M. Schotthoefer, Lucinda B. Johnson, Catherine M. Johnson, Joseph E. Murphy, Patrick K. Schoff, Rebecca A. Cole, Val R. Beasley
Publikováno v:
Journal of Wildlife Diseases. 39:510-521
Skeletal malformation rates for several frog species were determined in a set of randomly selected wetlands in the north-central USA over three consecutive years. In 1998, 62 sites yielded 389 metamorphic frogs, nine (2.3%) of which had skeletal or e
Autor:
Todd Lawmaster, Joseph E. Murphy, Val R. Beasley, Kimberlee B. Beckmen, Rhian B. Cope, Julie K. Johnson
Publikováno v:
Ecotoxicology. 11:243-254
Declines of amphibians have been attributed to many factors including habitat degradation. The introduction of grass carp (Ctenopharyngodon idella) as a biological agent for aquatic plant control in ponds and lakes managed narrowly for human recreati
Publikováno v:
Business and Society Review. 99:35-51
Autor:
Stanley A. Chin‐Bing, Joseph E. Murphy
Publikováno v:
The Journal of the Acoustical Society of America. 99:2475-2500
Modeling shear conversion with finite‐element/finite‐difference codes at a kilohertz and above is difficult due to the number of computational elements needed for such small wavelengths. Typically six to ten nodes per wavelength are required to a
Publikováno v:
The Journal of the Acoustical Society of America. 99:845-850
Accurate numerical solutions generated with a new computational model are presented for several range‐dependent underwater acoustic problems involving penetrable ocean bottoms. The multifilament source model [Boag et al., ‘‘Analysis of acoustic
Publikováno v:
The Journal of the Acoustical Society of America. 96:2313-2317
An orthogonality relation for the Rayleigh–Lamb modes of vibration of an isotropic, vertically layered elastic plate is derived. The derivation allows arbitrary variation of the plate properties in the vertical direction and includes the effects of
Publikováno v:
Journal of Applied Physics. 75:5196-5204
The behavior of an electron cloud moving in a closed quantum double‐barrier heterostructure is reexamined. The charge trapped in the double barrier acts as a nonlinear potential in the time‐dependent Schrodinger equation and it is verified that i
Publikováno v:
Journal of Computational Acoustics. :321-333
Several radiation boundary conditions for inhomogeneous acoustic media are investigated. Previous investigators have developed various approximate radiation conditions and have studied their accuracy by calculating an effective reflection coefficient
Autor:
Joseph E, Murphy, Kimberlee B, Beckmen, Julie K, Johnson, Rhian B, Cope, Todd, Lawmaster, Val R, Beasley
Publikováno v:
Ecotoxicology (London, England). 11(4)
Declines of amphibians have been attributed to many factors including habitat degradation. The introduction of grass carp (Ctenopharyngodon idella) as a biological agent for aquatic plant control in ponds and lakes managed narrowly for human recreati