R-value: Difference between revisions
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{{wiktionary|r-value|rvalue}} |
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'''R-value''' |
'''R-value''' or '''rvalue''' may refer to: |
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* Properties of materials: |
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* [[R-value (insulation)]] in building engineering, the efficiency of insulation of a house |
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* [[R-value (soils)]] in geotechnical engineering, the stability of soils and aggregates for pavement construction |
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* [[value (computer science)|r-value]], in computer science, a value that does not have an address in a computer language |
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* ''R''<sub>0</sub> or ''R'' number, the [[basic reproduction number]] in epidemiology |
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* In computer science, a [[value (computer science)#lrvalue|pure value which cannot be assigned to]] |
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*In statistics, |
* In statistics, the [[Pearson product-moment correlation coefficient]], or simply ''correlation coefficient'' |
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*In the physical sciences, the [[gas constant]] is often denoted by the symbol R |
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* In solid mechanics, the [[Lankford coefficient]] |
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*In ophthalmic optics, r-value refers to the distance between the segment optical center and the segment top |
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In engineering the R-value is the efficiency of solar panels, fuel cells, and solar panels. |
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== See also == |
== See also == |
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* [[L-value (disambiguation)]] |
* [[L-value (disambiguation)]] |
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* [[R-factor]], a plasmid that codes for antibiotic resistance |
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* [[List of refrigerants#Numbering scheme|ASHRAE refrigerant designations]], commonly known as R-numbers |
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{{disambiguation}} |
Latest revision as of 15:04, 21 March 2024
R-value or rvalue may refer to:
- R-value (insulation) in building engineering, the efficiency of insulation of a house
- R-value (soils) in geotechnical engineering, the stability of soils and aggregates for pavement construction
- R-factor (crystallography), a measure of the agreement between the crystallographic model and the diffraction data
- R0 or R number, the basic reproduction number in epidemiology
- In computer science, a pure value which cannot be assigned to
- In statistics, the Pearson product-moment correlation coefficient, or simply correlation coefficient
- In solid mechanics, the Lankford coefficient
See also[edit]
- L-value (disambiguation)
- R rating (disambiguation)
- R-factor, a plasmid that codes for antibiotic resistance
- ASHRAE refrigerant designations, commonly known as R-numbers