Results 81 to 90 of about 386,308 (321)
A high‐performance n‐type element for quasi‐solid‐state thermocells has been introduced, outperforming conventional p‐type elements and showcasing the potential to harness body heat as an energy source or power embedded sensors. This advance significantly contributes to waste thermal energy harvesting and wearable technology, paving the way for self ...
Gilyong Shin+10 more
wiley +1 more source
Field correlations and the ultimate regime of turbulent convection
Using direct numerical simulations of Rayleigh-B\'{e}nard convection (RBC) under free-slip boundary condition, we show that the normalized correlation function between the vertical velocity field and the temperature field, as well as the normalized ...
Mishra, Pankaj K.+3 more
core +1 more source
The relaxation of two-dimensional rolls in Rayleigh–Bénard convection [PDF]
Large aspect ratio, two-dimensional, periodic convection layers containing a Boussinesq fluid of finite Prandtl number bounded by rigid or free horizontal surfaces are investigated numerically.
Catton I., I. Catton, M. R. Paul
core +1 more source
On the uniqueness of a solution to a stationary convection-diffusion equation with a generalized divergence-free drift [PDF]
In this paper we establish the uniqueness of a solution to a stationary convection-diffusion equation in divergence form with an exponentially summable generalized divergence-free drift.
arxiv
Thresholds for Atmospheric Convection in Amazonian Rainforests
The Amazon rainforest is known as the “Green Ocean” for its maritime‐like convection and cloud microphysics during the wet season. Although previous studies suggest the dominant thermodynamic processes involved in deep convection may differ between land ...
M. Wu, J.‐E. Lee
doaj +1 more source
A wideband tunable electrochromic device with dynamic thermal emissivity control is demonstrated. The system enables adaptive heat regulation via electrochemically modulated silver deposition, achieving efficient cooling and heating states. The flexible design ensures mechanical robustness under bending conditions, making it promising for portable and ...
Jiawei Liang+10 more
wiley +1 more source
Survey of heat transfer to near critical fluids [PDF]
Survey topics include - heat transfer boundaries of near critical region, free, natural, and forced convection experiments, oscillations, geometric effects, parameters which appear to be significant to heat transfer in critical region, and theories which
Hendricks, R. C.+2 more
core +2 more sources
Selective soldering via molten metal printing enables component integration, even in heat‐sensitive applications across fields like additive manufacturing, sustainable electronics, and smart textiles. This method overcomes the temperature limitations of existing technologies.
Dániel Straubinger+4 more
wiley +1 more source
Shear‐Induced Nematic Alignment in Polysulfone Melts
Shear‐induced alignment is investigated by means of rheology and birefringence on an amorphous linear polysulfone melt. The absence of crystallization makes PSU particularly enabling to investigate temperature effects on the shear‐alignment of linear polymers, unveiling the role of chain relaxation times and possible enthalpic contributions.
Sara Daryoush+3 more
wiley +1 more source
Theory of stellar convection: Removing the Mixing-Length Parameter [PDF]
Stellar convection is customarily described by Mixing-Length Theory, which makes use of the mixing-length scale to express the convective flux, velocity, and temperature gradients of the convective elements and stellar medium. The mixing-length scale is taken to be proportional to the local pressure scale height, and the proportionality factor (the ...
arxiv +1 more source