The phenomenon leading to fracture under repeated or fluctuating stresses having a maximum value less than the tensile strength of the material. Fatigue fractures are progressive and grow under the action of the fluctuating stress.

A general name for instruments which detect the presence of (but do not necessarily measure) small electrical charges by electrostatic means. Compare to electrometer.

National Union of Mrine, Aviation & Shipping Transport Officers

Removing the thick layer of oxides formed on some metals at elevated temperatures.

A compressor cooled by atmospheric air circulated around the cylinders or casing.

After mast on a schooner or sailing ship carrying a spanker; usually the fourth mast of a five or six masted schooner.

An atmosphere in an area of heavy industry with soot, fly ash, and sulfur compounds as the principal constituents.

Direct current supplied by a device employing a power source external to the electrode system of a cathodic protection installation.

A building energy auditing technique used to determine and/or locate air leaks in a building shell or envelope.

On square-rigged ships, the lines which are lead from the masthead to the ends of the yards to support them.

Fixed ports that do not open which are placed in the deck or cabin to admit light.

The maximum cyclic stress value that a metal can with stand for a specified number of cycles or length of time in a given corrosive environment. See corrosion fatigue strength

Transportation charge advanced by one carrier to another to be collected by the later carrier from the consignor or consignee.

A material that can be used to store thermal energy as latent heat. Various types of materials have been and are being investigated such as inorganic salts, eutectic compounds, and parrafins, for a variety of applications, including solar energy storage ( ...

The cost of storing a physical commodity, consisting of interest on the invested funds, insurance,.

A mercury barometer designed for use aboard ship. The instrument is of the fixed-cistern type (see Kew barometer). The mercury tube is constructed with a wide bore for its upper portion and with a capillary bore for its lower portion. This is done to incr ...

(1) A type of corrosion attack (deterioration) uniformly distributed over metal surface. (2) Corrosion that proceeds at approximately the same rate over a metal surface. Also called general corrosion.

A professional working for a fund manager or broker whose job is to analyse key industry sectors.

Generation of energy at the location where all or most of it will be used.

A vector term which includes both wind speed and wind direction.