The phrase "a decrease in thermal" is correct and usable in written English.
It can be used in contexts discussing changes in temperature or thermal energy levels in various fields such as physics, engineering, or environmental science.
Example: "The study showed a decrease in thermal energy during the cooling process of the material."
Alternatives: "a reduction in thermal" or "a decline in thermal".
Thermogravimetric analysis also showed a decrease in thermal stability after testing at lower humidity.
On the other hand, electrolysis and a decrease in thermal viscosity occur.
A decrease in thermal resistance of heat transfer in the fluids would significantly benefit many of these applications/processes.
Figures depicted that increasing the suction parameter would cause a decrease in thermal boundary layer thickness and concentration profiles.
We found a huge preferred orientation and nanostructuration while a decrease in thermal and electrical conductivity is observed.
Thermogravimetric analysis (TGA) indicates a decrease in thermal stability of the matrix polymer with the incorporation of flax hybrid preform.
Thermal characterizations show a decrease in the thermal diffusivity ratio as the nanoparticle size is increased and an enhancement in thermal diffusivity ratio as nanoparticle concentration is added into the nanofluids.
It is observed that an increase in thermal and solutal Grashof number causes a decrease in the thermal boundary layer thickness, and consequently the fluid temperature decreases due to buoyancy effect.
Although no data are available to validate these calculations, the measurements of Nath and Chopra [18] for the thermal conductivity of thin films of copper (also plotted in Figure 1) clearly show a decrease in the thermal conductivity as the thickness of the film decreases.
This results in a decrease in nanofluid thermal conductivity.
Increasing the unsteadiness parameter results in a decrease in the thermal boundary layer thickness.
