The migrations, distribution, and feeding of American shad, Alosa
sapidissima (Wilson), were studied from February 1980 through January
1981 in the Columbia River Estuary, an important rearing zone for
young-of-the-year shad. Sampling was performed with purse seine,
beach seine, and otter trawl.
Adult shad and large numbers of juveniles from...
An analytical model leading to the pressure distribution on
the cross section of a Darrieus Rotor Blade (airfoil) was constructed. The model was based on the inviscid flow theory and the contribution of the nonsteady wake vortices was neglected. The
analytical model was translated into a computer code in order...
The effects of selected atmospheric variables on the power output
of a DOE Mod-2 horizontal-axis wind turbine are studied. Particular
attention is focused on unsteady, nonuniform flow conditions
within the rotor disc as represented by vertical profiles measured at
adjacent meteorological towers. Primary variables are wind speed,
wind direction and...
An experimental investigation has been made of the effect of
vibration on heat transfer from a cylinder in crossflow. The
cylinder used was 3/16-inch in diameter and was sinusoidally
oscillated in the vertical direction by a mechanical drive mechanism
while immersed in an open water channel. Nominal amplitude
ratios, a/d,...
Time study data was collected for two horsepower classes of rubber tired skidders from field operations controlled by Associated Pulp and Paper Mills, Ltd., Tasmania, Australia. A wide range of site and logging conditions were used to produce both production per hour and cycle time predictive equations.
The resultant equations...
