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.

An instrument for measuring the pressure of the atmosphere. The two principle types are aneroid and mercurial.

Units in a unit trust where the income from the trust's investments is reinvested in the trust.

The owners of a ship are entitled to payment as freight for merchandise returned through the fault of either the consignees or the consignors. Such payment, which is over and above the normal freight, is called backfreight.

(See EUVROU.)

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), ...

The angle a celestial body makes with the horizon.

A fund in which the objective is to outperform the market average by actively seeking out stocks.

The range through which the input may be varied without initiating a response. Usually expressed as a percentage of full-scale range.

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

1.Wolrd Maritime Organization2.World Meteorological Organisation

Governing International Fisheries Agreements

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

Underwriters Laboratories

Oil Pollution Act of 1990 (USA)

A letter of credit that contains a limited engagement clause which states that the issuing bank promises to pay the beneficiary upon presentation of the required documents at its counters or the counters of the named bank.

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.

Unless Used In Which Case Time Actually Used To Count

International Code for Vessels Carrying Chemicals in Bulk (IMO)

A vessel or tank where heat produced from the combustion of fuels such as natural gas, fuel oil, or coal is used to generate hot water or steam for applications ranging from building space heating to electric power production or industrial process heat.