The coupled trickling filter-activated sludge process : design and performance /

Mode of access: Internet.

Report on tests of welding filter plates /

Mode of access: Internet.

Fine solids removal following combined chemical-trickling filter treatment /

Mode of access: Internet.

Wastewater stabilization lagoon : intermittent sand filter systems /

Mode of access: Internet.

High daily rate trickling filter performance : under the direction of the Board of State Health Commissioners, Upper Mississippi River Basin Sanitaton Agreement /

Includes bibliographical references.

Laboratory and full-scale parametric studies of the rolling resistance of radial- and bias-ply heavy service truck tires. Final report.

National Highway Traffic Safety Administration, Office of Heavy Duty Vehicle Research, Washington, D.C.

Results of rolling resistance measurements on twelve radial passenger car tires.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

Long term recharge of trickling filter effluent into sand /

Mode of access: Internet.

Noise and traction characteristics of bias-ply and radial tires for heavy duty trucks. Final report.

Transportation Department, Office of Noise Abatement, Washington, D.C.

A preliminary investigation of the effectiveness of a diatomite filter in the removal of radioactive phosphorus from water /

"November 1, 1951."

Evaluation of filter flammability and filter bank fire detection systems /

"U.S. Atomic Energy Commission Contract AT(29-1)-1106."

Designs of filter plants, January 1900.

Mode of access: Internet.

Digital filter synthesis

"Cornell Aeronautical Laboratory, Inc. has assigned Report no. XA-2177-B-1 to this document."

Radial flow behavior of artificial recharge from surface cavities,

Bibliography: p. 53.

Back scattering of a plane electromagnetic wave from an infinite cylinder of plasma with small axial gradients and arbitrary radial gradients of electron density : normal incidence /

"Prepared under contract no. NOrd 18053."