Whentwoobjectsatdifferenttemperatureisbroughtintothermalcontact,heatflowsfromtheobjectatthehighertemperaturetothatatthelowertemperature.Thenetflowisalwaysinthedirectionofthetemperaturedecrease.Themechanismsbywh
Heat spontaneously flows from hot to cold in standard thermodynamics. However, the latter theory presupposes the absence of initial correlations between interacting systems. We here experimentally demonstrate the reversal of heat flow for two quantum correlated spins-1/2, initially prepared in local th...
Valve for changing over the heat flows of a heat pump, taking into account the flow direction reversal in a heat exchanger connected during heating operation to the source side of the heat pumpThe invention relates to a valve arrangement having a changeover valve with a housing (7) with at ...
each other forming nets called rete mirabile. In rete mirabile (the “wonderful net”), blood in arteries andveins flowsin opposite direction, and the outward flowing arterial blood loses most of the heat to the colder inward-flowing venous blood (Fig. 2). The heat transfer between arterial ...
Unlike conduction and convective heat transfers, the heat flows both from hot to cold and from cold to hot surfaces. Therefore, the amount of heat transfer in the radiation is called net radiation heat transfer. The direction of the net radiation heat transfer is from the hot surface to the...
We study hydrodynamic phonon heat transport in two-dimensional (2D) materials. Starting from the Peierls-Boltzmann equation with the Callaway model approximation, we derive a 2D Guyer-Krumhansl-like equation describing hydrodynamic phonon transport, taki
With rapid development of measurement techniques, great opportunities have been opened up to map the detailed temperature distribution on a surface and gain insight of the flow structures in complex flows. This significantly enhances the opportunities to achieve understanding of the flow and heat transfe...
Most of the heat transfer occurs through the thermoelectric disk but some heat flows through the gas flushing the DSC apparatus. As long as heat transfer occurs through the gas by conduction it can be accounted for by including a resistance in parallel with the resistors on the disk. The ...
Within the Reynolds number range of interest for this study, the Kagome lattice exhibits excellent heat dissipation compared with the tetrahedral lattice. In particular, when the cooling air flows in the direction OB of the two sandwich panels, the Kagome lattice provides an 8~37% higher overall...
2) oriented heat-flows 方向性热流 1. Inpainting model which based on curvature driven oriented heat-flows; 基于曲率驱动方向性热流的图像修复模型3) direction of paleogeothermal heat flow migration 热流运移方向4) athermal direction 无热方向 1. Calculation and analysis of athermal directions of ...