Now showing items 7491-7500 of 7502
The relationship of site index to synoptic estimates of soil moisture and nutrients for western redcedar (Thuja plicata) in southern coastal British Columbia
(WSU Press, 1997)
We described the pattern of mean site index and the associated variation in site index of western redcedar (Thuja plicata Donn. ex D. Don.) in relation to categorical variables of soil moisture and nutrients as identified ...
Population Monitoring of Phacelia verna: A Federal Candidate Species
(WSU Press, 1987)
Carl Parcher Russell; an indexed register of his scholarly and professional papers, 1920-1967, in the Washington State University Library.
(Pullman Washington State University Library, 1970)
Guide to the papers of Carl Parcher Russell, historian, ecologist, and officer for the National Park Service for 34 years, from 1923 until his retirement in 1957. His work was dedicated to the study of the frontier.
An investigation of the small slope approximation for scattering from rough surfaces: Part II: Numerical studies
(Journal of the Acoustical Society of America, 1997-05)
The small slope approximation (SSA) of Voronovich [Sov. Phys. JETP 62, 65–70 (1985)] is a promising method for modeling wave scattering from rough surfaces. The SSA T-matrix series, which can be interpreted as an expansion ...
An investigation of the small slope approximation for scattering from rough surfaces: Part I: Theory
(Journal of the Acoustical Society of America, 1995-04)
The small slope approximation (SSA) of Voronovich [Sov. Phys. JETP 62, 65–70 (1985)] is a promising method for application to scattering from many natural surfaces. The theory gives a systematic expansion that can be ...
Inverse imaging of the breast with a material classification technique
(Journal of the Acoustical Society of America, 1998-03)
In recent publications [Chew et al., IEEE Trans. Blomed. Eng. BME-9, 218–225 (1990); Borup et al., Ultrason. Imaging14, 69–85 (1992)] the inverse imaging problem has been solved by means of a two-step iterative method. In ...
A finite-difference time-domain solution to scattering from a rough pressure-release surface
(Journal of the Acoustical Society of America, 1997-12)
The finite-difference time-domain (FDTD) method is a numerical technique that makes no explicit physical approximations to the underlying problem. The quality of a FDTD-based solution typically is determined by the ...
Acoustic scattering from a fluid-elastic solid interface using the small slope approximation
(Journal of the Acoustical Society of America, 1994-09)
In this paper the small slope approximation is applied to acoustic scattering from a randomly rough fluid–elastic?solid interface. Expressions for the zeroth?, first?, and second?order bistatic scattering cross sections ...
The method of the local parabolic approximation for rough surface scattering
(Journal of the Acoustical Society of America, 1993-10)
A method for evaluation of scattering from rough surfaces which is similar to the Kirchhoff approximation is considered. However, it is based on a local parabolic approximation of the surface irregularities rather than a ...