s\ne {s}^{{\prime} }}\frac{\omega {\left({\boldsymbol{q}}\right)}_{s}+\omega {\left({\boldsymbol{q}}\right)}_{{s}^{{\prime} }}}{4}\left[\frac{{C\left({\boldsymbol{q}}\right
To describe this flow we need to know the heat conductivity of the system. As it is well known, the harmonic crystal has an infinite heat conductivity [19]. To model realistic systems with finite heat conductivity we add to the harmonic dynamics a random velocity reversal. It models in a ...
usually of interest, heat balances are often written in terms of heat flow rates (heat per unit time), sometimes denoted by a dot over the symbol, , so that for a process with negligible work, kinetic energy and potential energy terms, , the rate of change of internal energy with time....
A green dot indicates the fly head position upon entry in the boundary region. g Maximum rate of temperature change (top) and maximum inter-antennal temperature difference (bottom) experienced by flies traversing the border in the three experimental conditions. h Schematic representation of the 2-...
e, Measured power density of i-Cool (Ag) and other textiles at different evaporation rate in the steady-state evaporation test. Omega symbol, Statistical significance between the i-Cool (Ag) and i-Cool (Cu), Welch’s t-test p < 0.01 at 0 mL/h, 1.1 mL/h, p < 0.05 at 0.7 mL/h...
The symbol Wn shown in FIG. 2 denotes the fixing nip portion or the press-contacted portion in the traveling direction of the recording paper P that can be formed by the contact between the fixing roller 41 and the pressing roller 43. The donor roller 45 is formed of a two-ply roller...
The heat source based on the self-propagation reaction of Al/Ni thin foil has the characteristics of concentrated heat, fast temperature rise/fall rate and small heat-affected zone; it can complete the melting and solidification crystallization of solder within milliseconds to realize solder interconne...
For wet- bulb temperature, the left Y-axis shows the value of GTWday (blue dot-dashed line) corresponding to each value of TWday on the right Y-axis; slight differences are due to the temporal and spatial variations in wind speed considered by GTWday but not considered by the TWday ...
In this paper, the symbol S represents the fin pitch of the spiral fin tube, tfin is used to indicate the thickness of the fin, h represents the height of the fin; ttube indicates the thickness of the base tube, dout is used to refer to the outside diameter of the base tube, and...
Symbol Description α Fractal channel aspect ratio p Interspace of conical column structure d Tip size of conical column structure h Height of conical column structure Dw Departure diameter of droplet ρw Density of droplet s+ Dimensionless spacing of groove h+ Dimensionless height of groove a+ Dim...