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.

Performance characteristics of automotive engines in the United States. First series-- report no. 14. 1975 Mazda Rotary 70 CID (1.1 liters), 4V. Interim report.

Transportation Systems Center, Cambridge, Mass.

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.

Long term recharge of trickling filter effluent into sand /

Mode of access: Internet.

Evaluation of the ADDCO flip-disc variable message sign.

Federal Highway Administration, Washington, D.C.

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

"November 1, 1951."

Emulation of disc file processor /

"June, 1971."

Evaluation of filter flammability and filter bank fire detection systems /

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

Energy versus stress theories for combined stress; a fatigue experiment using a rotating disc,

"Department of Army Project no. 5B99-01-004, Ordnance R and D Project no. TB2-0001. Office of Ordnance Research Project no. 1348 Contract no. DA-19-020-ORD-3520."

The transparency by black and white Secchi disc of the waters of New York and Newport Bights : Cruise STIRNI I, July-September 1951 /

Caption title.

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."