
1) Solid mechanic
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R-value can refer to: == See also == ...
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http://en.wikipedia.org/wiki/R-value
[insulation] An R-value is a unit thermal resistance for a particular material or assembly of materials (such as an insulation panel). The R-value depends on a solid material`s resistance to conductive heat transfer. For loose or porous material, the R-value accounts for convective and radiative heat transfer through the material. However i...
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http://en.wikipedia.org/wiki/R-value_(insulation)
[soils] The R-Value test, California Test 301, measures the response of a compacted sample of soil or aggregate to a vertically applied pressure under specific conditions. This test is used by Caltrans for pavement design, replacing the California bearing ratio test. Many other agencies have adopted the California pavement design method, an...
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http://en.wikipedia.org/wiki/R-value_(soils)
[unit] Players in their country`s squad for the 1996 AFC Asian Cup. For a complete listing, see 1996 AFC Asian Cup squads. ...
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http://en.wikipedia.org/wiki/R-value_(unit)

A measure of the capacity of a material to resist heat transfer. The R-value is the reciprocal of the conductivity of a material (U-value). The higher the R-value of a material, the greater its insulating properties. It is important to be aware that R-values depend not only on thickness but also on ...
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http://www.daviddarling.info/encyclopedia/R/AE_R-value.html

A measure of the capacity of a material to resist heat transfer. The R-Value is the reciprocal of the conductivity of a material (U-Value). The larger the R-Value of a material, the greater its insulating properties.
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http://www.electromn.com/glossary/r.htm

Resistance to thermal transfer or heat flow. Higher R-value numbers indicate greater insulating value.
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A measure of insulation. For example, typical new home's walls are usually insulated with 6' of batt insulation with an R value of R-19, and a ceiling insulation of R-28.
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http://www.soundhome.com/glossary

thermal resistance
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The measure of insulating capability, 3-1/2
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https://www.encyclo.co.uk/local/21672

A measure of insulation. A measure of a materials resistance to the passage of heat. The higher the
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https://www.encyclo.co.uk/local/22400

A measure of the capacity of a material to resist heat transfer. The R-Value is the reciprocal of the conductivity of a material (U-Value). The larger the R-Value of a material, the greater its insulating properties.
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https://www.encyclo.co.uk/local/22819

The measure of insulating capability, 3-1/2” insulation is given a designation R-11 (the higher the R-value, the better it insulates).
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https://www.encyclo.co.uk/local/23103

a measure of the resistance of an insulating or building material to heat flow, expressed as R-11, R-20, and so on; the higher the number, the greater the resistance to heat flow. Cf.
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https://www.infoplease.com/dictionary/r-value
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