The mathematical technique of overrelaxation is used here to speed the convergence of a numerical method for solving viscous, incompressible fluid flow problems. The method, called MAC, involves approximating the complete two-dimensional incompressible Navier-Stokes equations with analogous finite-difference equations. The MAC method was developed by the Los Alamos Scientific Laboratory...
This study was designed to learn the effect a specific herbicide practice on plant communities. Data were obtained from brushfields that had been aerially sprayed with 2,4-D (2,4 dichiorophenoxyacetic acid) and/or 2,4,5-T (2,4,5 trichlorophenoxyacetic acid). Qualitative data on species composition, cover percent, height, response to herbicide and site description were...
This dissertation describes a new radio-frequency power-amplifier circuit and mode of operation that exceeds the efficiency of the conventional class C amplifier in the low and medium h-f range. It will be found useful in applications where linearity between the input and output are not required, as in all applications...
A laboratory investigation was undertaken to evaluate the effect
of lateral spacing and lateral diameter on the flow characteristics of
a three dimensional blowing manifold.
The model used in the experimental work was constructed of
clear cast acrylic pipe, five inches in diameter. Laterals of two and
four inch diameter,...
A sampling criterion which provides a numerical relationship
between sampling rate and worst-case peak error for linear interpolation
of sample points is presented. The criterion, based upon the
second derivative of a waveform, is derived, its properties are observed
for a sine wave, and its applicability to complex signals is...