Temperature equivalent

Certain curves, T = f(% distilled), level off at high temperatures due to the change in pressure and to the utilization of charts for converting temperatures under reduced pressure to equivalent temperatures under atmospheric pressure. 

Thermographic Sensitivity. The noise equivalent temperature difference (sensitivity to scene temperature variations ia degrees C) maybe expressed ia terms of the NEP ... 

Fig. 6. Schematic energy levels of a soHd as a function of interatomic distance where the vertical line represents the equiUbrium spacing (68). A band of states obeying Fermi distribution is required by the PauH principle. High electron velocities and equivalent temperatures exist in conductors even when the...

Equivalent temperature A synthetic comfort scale that takes into account the effects of dry bulb temperature, air movement, and mean radiant temperature. 

Wind Chill Equivalent Temperatures on Exposed Flesh at Varying Velocity... 

Table 11-1 presents a few of the many possible operating conditions for these systems. The same refrigerating plant may operate through a wide range of pressures and temperatures. Table 11-2 presents a summary of utilities required for absorption plants. The steam indicated can be substituted by direct gas, waste heat, or other stream at an equivalent temperature level. 

Mrowec et examined the resistance to high-temperature corrosion of Fe alloys with Cr contents between 0.35 and 74 at% Cr in 101 kPa S vapour. They found that the corrosion was parabolic, irrespective of the temperature or alloy composition, and noted that sulphidation takes place at a rate five orders of magnitude greater than oxidation at equivalent temperatures. At less than 2% Cr, the alloys formed Fe, j.,S growing by outward diffusion of Fe ions, with traces of FeCr2S4 near the metal core. 

For products intended for operation at elevated temperatures it would be expected that the temperatures would be known. Where the operating temperature is cyclic, the maximum might be used or an equivalent temperature dose estimated on the basis of the Arrhenius relation. 

For rotational levels of i , < 400cm , the slow component of the TOF data was fitted by a Maxwellian speed distribution with a mean kinetic energy < KE >/2k 350 50 K (dividing by 2 to achieve Maxwell-Boltzmann equivalent temperatures). The peak surface temperature induced by the laser pulse in these experiments was calculated to be 300-320 K. The good agreement between the mean kinetic energy determined for this desorption... 

A numerical evaluation of the Fermi energy lor a simple metal having one or two conduction electrons per atom yields a value of approximately ID-11 erg. or a few electron volts. The equivalent temperature. E,/b. is several lens of thousands of degrees Kelvin. Thus, except in extraordinary circumstances, when dealing with metals. bT -SC ( i.e.. the energy range or partially filled states is small, and the Fermi surface is well defined by the foregoing statement. It must be noted, however, that this is not necessarily true for semiconductors where the number of free electrons per unit volume may be very much smaller. 

The effect of strain rate, sy at - 50 °C and 50 °C is shown in Fig. 16. Qualitatively, increasing the strain rate is analogous to decreasing temperature (the temperature and strain rate dependencies of the stress-strain curve shapes are summarised in Fig. 17). However, it is worth noting that an equivalence temperature-strain rate does not apply over the whole stress-strain curve. 

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