heat transfer resistance
21Biot number — The Biot number (Bi) is a dimensionless number used in unsteady state (or transient) heat transfer calculations. It is named after the French physicist Jean Baptiste Biot (1774 1862), and relates the heat transfer resistance inside and at the… …
22U-Value — (see Coefficient of Heat Transmission) The reciprocal of R Value. The lower the number, the greater the heat transfer resistance (insulating) characteristics of the material …
23Providence Newberg Medical Center — Providence Health Services Main entrance in 2009 G …
24Thermal management of electronic devices and systems — Heat generated by electronic devices and circuitry must be dissipated to improve reliability and prevent premature failure. Techniques for heat dissipation can include heatsinks and fans for air cooling, and other forms of computer cooling such… …
25steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …
26building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …
27Thermal conduction — In heat transfer, conduction (or heat conduction) is a mode of transfer of energy within and between bodies of matter, due to a temperature gradient. Conduction means collisional and diffusive transfer of kinetic energy of particles of ponderable …
28Thermal conductivity — In physics, thermal conductivity, k, is the property of a material that indicates its ability to conduct heat. It appears primarily in Fourier s Law for heat conduction.First, we define heat conduction by the formula::: H=frac{Delta Q}{Delta t}=k …
29Thermal contact conductance — In physics, thermal contact conductance is the study of heat conduction between solid bodies in thermal contact. The thermal contact conductance coefficient, hc, is a property indicating the thermal conductivity, or ability to conduct heat,… …
30Thermal management of high power LED — With the coming of energy saving era, high power light emitting diodes (LEDs) are promising to replace other technologies such as incandescent and fluorescent bulbs in signaling, solid state lighting, and vehicle headlight applications due to… …
