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

A non-crystalline semiconductor material that has no long-range order.

The overall rate of heat loss from a building by means of transmission plus infiltration, expressed in Btu per hour, per degree temperature difference between the inside and outside.

The standard deviation of a sufficiently large number of measurements of the same quantity by the same instrument or method. The non-correctable part of the inaccuracy of an instrument, it represents the limit of measurement precision. The uncertainty of ...

Electronic Position Fixing System

Latvia(flag).

The factor, when multiplied by the monthly degree-days, that yields the monthly space heating load.

An agent or combination of agents added to an electroplating bath to produce a smooth, lustrous deposit.

When compressed air is forced through a submerged perforated hose or pipe. Some applications include; ice prevention, reduction of salt intrusion, underwater basting, pneumatic breakwaters and general mixing and agitation

A Short line used to attach one thing to another - a short rope or cord that secures or attaches an item onboard a boat, usually for keeping it attached to the boat

International Hydrographic Bureau

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 ...

The interior heat gain due to heat conduction, convection, and radiation from the exterior into the interior, and from occupants and appliances.

The angular position of the sun at solar noon with respect to the plane of the equator.

A unit of power equal to 1 billion Watts; 1 million kilowatts, or 1,000 Megawatts.

The correct term for what most people call the 'average'. Often shortened to.

Cathode Ray Tube

A thin, flexible wooden or plastic strip inserted into a pocket (batten pockets) on the back part (leech) of a sail to stiffen it and assist in keeping its form.

In the US, a plan enabling employees to choose from a variety of benefits, depending on their own.

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.