Same as wind sock.

International Maritime Lecturers Association

The ratio of solar collector array area to actual land area.

Electronic Position Fixing System

FXX Radio transmission designator.Frequency modulation of main carrier other than F1B, F3E and frequency modulation facsimile.(ALRS)

A positively charged ion that migrates through the electrolyte toward the cathode under the influence of a potential gradient. See also anion and ion.

Slang name for the Q Flag. Also an old term for yellow fever.

Fracture of a metal during quenching from elevated temperature. Most frequently observed in hardened carbon steel, alloy steel, or tool steel parts of high hardness and low toughness. Cracks often emanate from fillets, holes, corners, or other stress rais ...

Aging induced by rapid cooling after solution heat treatment.

A naturally occurring radioactive gas found in the U.S. in nearly all types of soil, rock, and water. It can migrate into most buildings. Studies have linked high concentrations of radon to lung cancer.

Standing or running (adjustable) wire rigging that supports the mast from the stern; a wire mast support leading aft to the deck or another mast

An accelerated corrosion test in which specimens are exposed to a fine mist of a solution usually containing sodium chloride, but sometimes modified with other chemicals.

A hygrometer which uses a transducing element whose electrical properties are a function of atmospheric water vapor content. The humidity strip and carbon-film hygrometer element are examples of such a transducer.

Human Element

Legal Automated Workstation System

The lowest price at which a dealer or market maker will sell a.

The relationship of a building to true south, as specified by the direction of its longest axis.

Any process that uses solar radiation to produce useful heat.

A change in the terms to a Letter of Credit that is already issued. Such changes can only be made with the agreement of all parties to the Letter of Credit.

The mass of unit volume of a material at a specified temperature.