THE U.S. PESTICIDE INDUSTRY: USAGE TRENDS AND MARKET DEVELOPMENT

Agribusiness, Crop Production/Industries,

THE U.S. FERTILIZER INDUSTRY: DEMAND TRENDS AND MARKET STRUCTURE

Agribusiness,

An effective multigrid method for high-speed flows

The use is considered of a multigrid method with central differencing to solve the Navier-Stokes equations for high speed flows. The time dependent form of the equations is integrated with a Runge-Kutta scheme accelerated by local time stepping and variable coefficient implicit residual smoothing. Of particular importance are the details of the numerical dissipation formulation, especially the switch between the second and fourth difference terms. Solutions are given for 2-D laminar flow over a circular cylinder and a 15 deg compression ramp

Investigations of electron emission characteristics of low work function surfaces Quarterly report no. 2, 1 Jan. - 31 Mar. 1966

Formation and electron emission characteristics of low work function surface

Investigations of electron emission characteristics of low work function surfaces Quarterly report no. 5, 1 Oct. - 31 Dec. 1965

Electron emission characteristics of low work function surfaces from magnetic deflection probe measurements of cesium adsorption on tungste