A device for optimizing the anaerobic digestion of biomass and/or animal manure, and possibly to recover biogas for energy production. Digester types include batch, complete mix, continuous flow (horizontal or plug-flow, multiple-tank, and vertical tank), ...

A component made up of a cylinder barrel, end covers, a piston rod, a steel or stainless steel piston. A device which induces action or motion with compressed air being the medium through which the power is transmitted.

Enhanced Group Call

A pressure-operated switching device used in a radiosonde. In operation, the expansion of an aneroid capsule causes an electrical contact to scan a radiosonde commutator composed of conductors separated by insulators.

World Maritime University

Those parts of the ship's navigating bridge extending towards the ship's sides.

London Interbank Offered Rate

The tariff applied for chartering tonnage in a particular trade.

The amount of heat given off by a person at rest in a comfortable environment; approximately 50 Btu per hour (Btu/h).

The ratio of light output of a fluorescent lamp operated on a ballast to the light output of a lamp operated on a standard or reference ballast.

Hazardous Materials

Operator of Uninspected Passenger Vessels.

The non-combustible residue of a combusted substance composed primarily of alkali and metal oxides.

The forwarding agreement or carrying agreement between shipper and air carrier and is issued only in nonnegotiable form.

Coast Guard's Automated Mutual-Assistance Vessel Rescue System

In the direction of the vessel's head. Wind ahead is from the direction toward which the vessel's head points. In a forward direction.

The absorption of carbon into a metal surface; may or may not be desirable.

Last Visit

The angle a celestial body makes with the horizon.

A building construction technique used to create a continuous air retarder that uses the drywall, gaskets, and caulking. Gaskets are used rather than caulking to seal the drywall at the top and bottom. Although it is an effective energy-saving technique, ...