Results 21 to 30 of about 313,354 (341)

Adiabatic Thermal Radiation Pumps for Thermal Photonics [PDF]

open access: yesPhysical Review Letters, 2019
We control the direction and magnitude of thermal radiation, between two bodies at equal temperature (in thermal equilibrium), by invoking the concept of adiabatic pumping. Specifically, within a resonant near-field electromagnetic heat transfer framework, we utilize an {\it instantaneous} scattering matrix approach to unveil the critical role of wave ...
Lucas J. Fernández-Alcázar   +5 more
openaire   +3 more sources

Effects of 3-D thermal radiation on the development of a shallow cumulus cloud field [PDF]

open access: yesAtmospheric Chemistry and Physics, 2017
We investigate the effects of thermal radiation on cloud development in large-eddy simulations (LESs) with the UCLA-LES model. We investigate single convective clouds (driven by a warm bubble) at 50 m horizontal resolution and a large cumulus cloud field
C. Klinger   +5 more
doaj   +1 more source

The Equivalent Thermal Conductivity of the Micro/Nano Scaled Periodic Cubic Frame Silver and Its Thermal Radiation Mechanism Analysis

open access: yesEnergies, 2021
Currently, there are few studies on the influence of microscale thermal radiation on the equivalent thermal conductivity of microscale porous metal. Therefore, this paper calculated the equivalent thermal conductivity of high-porosity periodic cubic ...
Haiyan Yu   +3 more
doaj   +1 more source

THE RADIATION THEORY OF THERMAL REACTIONS. [PDF]

open access: yesJournal of the American Chemical Society, 1921
n ...
Lewis, W. C. M., McKeown, A.
openaire   +2 more sources

Smart thermal management with near-field thermal radiation [invited] [PDF]

open access: yesOptics Express, 2021
When two objects at different temperatures are separated by a vacuum gap they can exchange heat by radiation only. At large separation distances (far-field regime), the amount of transferred heat flux is limited by Stefan-Boltzmann’s law (blackbody limit). In contrast, at subwavelength distances (near-field regime), this limit can be exceeded by orders
Latella, Ivan   +2 more
openaire   +6 more sources

Measuring space radiation shielding effectiveness

open access: yesEPJ Web of Conferences, 2017
Passive radiation shielding is one strategy to mitigate the problem of space radiation exposure. While space vehicles are constructed largely of aluminum, polyethylene has been demonstrated to have superior shielding characteristics for both galactic ...
Bahadori Amir   +4 more
doaj   +1 more source

An overview of recent progress in the development of flexible electrochromic devices

open access: yesNano Materials Science, 2023
Electrochromic materials are capable of reversibly switching their colors or optical properties through redox reactions under applied voltages, which have shown great potential applications including smart windows, non-emissive displays, optical filters,
Bin Wang   +6 more
doaj  

Transformation thermal convection: Cloaking, concentrating, and camouflage [PDF]

open access: yesPhys. Rev. E 97, 022129 (2018), 2017
Heat can generally transfer via thermal conduction, thermal radiation, and thermal convection. All the existing theories of transformation thermotics and optics can treat thermal conduction and thermal radiation, respectively. Unfortunately, thermal convection has never been touched in transformation theories due to the lack of a suitable theory, thus ...
arxiv   +1 more source

Thermal radiation in systems of many dipoles [PDF]

open access: yesPhys. Rev. B 100, 205422 (2019), 2019
Systems of many nanoparticles or volume-discretized bodies exhibit collective radiative properties that could be used for enhanced, guided, or tunable thermal radiation. These are commonly treated as assemblies of point dipoles with interactions described by Maxwell's equations and thermal fluctuations correlated by the fluctuation-dissipation theorem.
arxiv   +1 more source

Home - About - Disclaimer - Privacy