The component of a central receiver solar thermal system where reflected solar energy is absorbed and converted to thermal energy.

Brittie fracture of a normally ductile material in which the corrosive effect of the environment is a causative factor. Environmental cracking is a general term that includes corrosion fatigue, high-temperature hydrogen attack, hydrogen blistering, hydrog ...

Free of Particular Average

A modification of the dew cell used in radiosonde equipment.

Caulking and weatherstripping to reduce air infiltration and exfiltration into/out of a building.

ACRONYM - National Electrical Code

The measure of the rate of change of an option's price compared to the change of price in the.

The relationship (ratio) between the sails height (luff length) and length along the foot. High aspect ratio means a sail that is tall and narrow, low aspect ratio is a short, squat sail. A high aspect ratio sail is very efficient in sailing close to the ...

Same as "grab rope" (rope).

A wind (or component thereof) directed down the slope of an incline and caused by greater air density near the slope than at the same levels some distance horizontally from the slope. Also called drainage wind and sometimes called katabatic wind.

A method of depositing thin semiconductor films used to make certain types of solar photovoltaic devices. With this method, a substrate is exposed to one or more vaporized compounds, one or more of which contain desirable constituents. A chemical reaction ...

The temperature registered by a thermometer with its bulb at the level of the tops of the grass blades in short turf.

A type of incandescent lamp that contains a halogen gas in the bulb, which reduces the filament evaporation rate increasing the lamp life. The high operating temperature and need for special fixtures limits their use to commercial applications and for use ...

Tool used for transferring course and bearing to and from the compass rose on a chart

Current flowing through paths other than the intended circuit.

The temperature at which all three phases of a substance can exist in equilibrium. This temperature occurs at only one pressure. The triple-point of water is 273.16 K and is the basis of the Kelvin scale.

An end closure for the filter case or bowl that contains one or more ports.

Thermal spraying in which coating material is fed into an oxyfuel gas flame, where it is melted. Compressed gas may or may not be used to atomize the coating material and propel it onto the substrate.

Accelerated deterioration of metals in carbonaceous gases at elevated temperatures to form a dustlike corrosion product; a unique form of high temperature corrosion which forms a dust-like corrosion product and sometimes develops hemispherical pits on a s ...

A technical rail ramp, used for equalization of points not actually served.