Search results
Results from the WOW.Com Content Network
The R-value (in K ⋅ m 2/ W) is a measure of how well a two-dimensional barrier, such as a layer of insulation, a window or a complete wall or ceiling, resists the conductive [2] flow of heat, in the context of construction. [3]. R-value is the temperature difference per unit of heat flux needed to sustain one unit of heat flux between the ...
Journal of Composite Materials. Journal of Crystal Growth. Journal of Elastomers and Plastics. Journal of Electronic Materials. Journal of the European Ceramic Society. Journal of Functional Biomaterials. Journal of Industrial Textiles. Journal of Intelligent Material Systems and Structures.
A value. The A-value for a methyl group is 1.74 as derived from the chemical equilibrium above. This means it costs 1.74 kcal/mol (7.3 kJ/mol) of energy to have a methyl group in the axial position compared to the equatorial position. A-values are numerical values used in the determination of the most stable orientation of atoms in a molecule ...
J. Mater. Chem. The Journal of Materials Chemistry was a weekly peer-reviewed scientific journal covering the applications, properties and synthesis of new materials. It was established in 1991 and published by the Royal Society of Chemistry. At the end of 2012 the journal was split into three independent journals: Journal of Materials ...
In heat transfer, thermal engineering, and thermodynamics, thermal conductance and thermal resistance are fundamental concepts that describe the ability of materials or systems to conduct heat and the opposition they offer to the heat current. The ability to manipulate these properties allows engineers to control temperature gradient, prevent ...
In crystallography, the R-factor (sometimes called residual factor or reliability factor or the R-value or R Work) is a measure of the agreement between the crystallographic model and the experimental X-ray diffraction data. In other words, it is a measure of how well the refined structure predicts the observed data. [1]
The Journal of Materials Chemistry A is a weekly peer-reviewed scientific journal that covers the synthesis, properties, and applications of novel materials related to energy and sustainability. It is one of three journals created after the Journal of Materials Chemistry was split at the end of 2012. Its first issue was published in January ...
Mater. Chem. Phys. Materials Chemistry and Physics (including Materials Science Communications) is a peer-reviewed scientific journal published 18 times per year by Elsevier. The focus of the journal is interrelationships among structure, properties, processing and performance of materials. It covers conventional and advanced materials.