Gross Registered Tonnage

Turbulence encountered by aircraft when flying through air space devoid of clouds. Thermals and wind shear are the main causes.

Little or no wind and flat seas

Credit cards branded with the name of a charity or trade union. Often give a small donation to the.

Inlet butterfly valve. These are fitted on the inlet of most types of compressor and the valve opens and closes to throttle the air flow. However, the term IBV is usually associated with turbo compressors.

A device used to simulate the angle of the sun for assessing shading potentials of building structures or landscape features.

Any process that uses solar radiation to produce useful heat.

A metric unit of energy or work; the energy produced by a force of one Newton operating through a distance of one meter; 1 Joule per second equals 1 Watt or 0.737 foot-pounds; 1 Btu equals 1,055 Joules.

An anode that is insoluble in the electrolyte under the conditions prevailing in the electrolysis.

Light, bulky articles.

A chronograph used to make a time-record of certain measured meteorological elements. The most common type, the triple register, records wind direction and speed, duration of sunshine, and amount of rainfall (sensed respectively by a contact anemometer, M ...

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

Less than Container Load

Measuring point for compressor acceptance test. Pressure before an orifice or nozzle, downstream of compressor discharge.

A pump which is used to deliver air to the aquarium. The pump pushes air through silicon tubing and to air stones or other aquatic decor. They are also an essential for UGF's (undergravel filters). An air stone is placed in each clear tube. When the air b ...

A compound with a central atom or ion bound to a group of ions or molecules surrounding it. Also called coordination complex. See also chelate, complexation, and ligand.

A day for general ship cleaning.

The decrease of an atmospheric variable with height, the variable being temperature, unless otherwise specified.

An electrode commonly used in polarization studies to pass current to or from a test electrode, usually made of noncorroding material

A pump for circulating the heat transfer fluid in a hydronic heating system.