A small local current usually caused by tidal streams as they ebb and flow around or against obstructions.

An angle piece fitted over the edge of boxes, crates, bundles and other packages to prevent the pressure from metal bands or other types from cutting into the package.

Abbreviation for "Electronic Data Interface." Generic term for transmission of transactional data between computer systems. EDI is typically via a batched transmission, usually conforming to consistent standards.

International data interchange standards sponsored by the United Nations. See UN/EDIFACT.

The area (in sq inches) of the filter element that is exposed to the flow of air or fluid for effective filtering.

Ability of a filter to remove particle matter from an air stream. Measured by comparing concentrate of material upstream and downstream of the filter. Typical particulate sizes range from .3 micron to 50 micron.

Is the ratio of the theoretical work requirement to the actual work required to be performed on the gas for compression and delivery.

Is the ratio of the theoretical work calculated on an isothermal basis to the actual work transferred to the gas during compression.

Is the ratio of the thermodynamic work requirement in the cylinder to actual brake horsepower requirement.

Is the ratio of the polytropic compression energy transferred to the gas to the actual energy transferred to the gas.

Is the ratio of actual capacity to piston displacement, stated as a percentage.

A compressor belonging to the group of dynamic compressors.

The medium or material that does the actual filtering or separating. May be paper, wire mesh, special cellulose, inorganic plastic, or a combination.

A charge for services performed in connection with floating elevators.- Charges assessed for the handling of grain through grain elevators.

An act of Congress (1903) prohibiting rebates, concession, misbilling, etc. and providing specific penalties for such violations.

To go aboard the vessel; to put onboard a vessel.

A tiller that is designed to be used in the event that wheel steering fails.

The sovereign power to take property for a necessary public use, with reasonable compensation.

Contraction for Empty Repositioning. The movement of empty containers.

The ability of a non-water-soluble fluid to form an emulsion with water.