Radiative properties of radially nonisothermal alumina particles with multiphase

Li, J.Y.; Li, Qiang; Dong, Shikui; Tan, H.

doi:10.1016/j.jqsrt.2011.11.016

Cited by 5 publications

(2 citation statements)

References 20 publications

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“…105 Surprisingly, there are only a handful of calculations involving nonisothermal particles, including calculation of radiation from atomic gases in shock-layer structures with linear temperature gradients 106 or calculations of large-radii spheres based on Mie series or related semi-analytical expansions. 107,108 As we show in a separate publication, temperature gradients in inhomogeneous bodies can lead to a number of interesting effects, including highly directional thermal emission. 109 Luminescence, like incandescence, involves incoherent emission of light due to quantum and thermal fluctuations of charges, but differs in that excitations are driven by nonthermal sources.…”

Section: Introductionmentioning

confidence: 82%

Fluctuating volume-current formulation of electromagnetic fluctuations in inhomogeneous media: Incandescence and luminescence in arbitrary geometries

et al. 2015

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We describe a fluctuating volume-current formulation of electromagnetic fluctuations that extends our recent work on heat exchange and Casimir interactions between arbitrarily shaped homogeneous bodies [Phys. Rev. B. 88, 054305] to situations involving incandescence and luminescence problems, including thermal radiation, heat transfer, Casimir forces, spontaneous emission, fluorescence, and Raman scattering, in inhomogeneous media. Unlike previous scattering formulations based on field and/or surface unknowns, our work exploits powerful techniques from the volume-integral equation (VIE) method, in which electromagnetic scattering is described in terms of volumetric, current unknowns throughout the bodies. The resulting trace formulas (boxed equations) involve products of well-studied VIE matrices and describe power and momentum transfer between objects with spatially varying material properties and fluctuation characteristics. We demonstrate that thanks to the low-rank properties of the associated matrices, these formulas are susceptible to fast-trace computations based on iterative methods, making practical calculations tractable. We apply our techniques to study thermal radiation, heat transfer, and fluorescence in complicated geometries, checking our method against established techniques best suited for homogeneous bodies as well as applying it to obtain predictions of radiation from complex bodies with spatially varying permittivities and/or temperature profiles.

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Section: Introductionmentioning

confidence: 82%

Fluctuating volume-current formulation of electromagnetic fluctuations in inhomogeneous media: Incandescence and luminescence in arbitrary geometries

et al. 2015

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“…Nanomaterials are defined by the United States National Nanotechnology Initiative as materials that have at least one dimension in 1-100 nm range. In the past decade, nanotechnology has become one of the leading technologies (Stix, 2001), and consequently, public concern about the environmental and health effects of nanomaterials is growing rapidly (Li et al, 2012;Popat et al, 2004). Humans may be exposed to nanoparticles (NPs) via several possible routes, including inhalation, dermal absorption and gastrointestinal tract absorption (Oberdörster et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Studies on fate and toxicity of nanoalumina in male albino rats

2013

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The purpose of this study is to follow-up the distribution, lethality percentile doses (LDs) and bioaccumulation of aluminium oxide nanoparticles (Al2O3-NPs, average diameter 9.83 ± 1.61 nm) in some tissues of male albino rats, and to evaluate its genotoxicity to the brain tissues, during acute and sublethal experiments. The LDs of Al2O3-NPs, including median lethal dose (LD50), were estimated after intraperitoneal injection. The computed LD50 at 24 and 48 h were 15.10 and 12.88 g/kg body weight (b.w.), respectively. For acute experiments, the bioaccumulation of aluminium (Al) in the brain, liver, kidneys, intestine and spleen was estimated after 48 h of injection with a single acute dose (3.9, 6.4 and 8.5 g/kg b.w.), while for sublethal experiments it was after 1, 3, 7, 14 and 28 days of injection with 1.3 g/kg b.w. once in 2 days. Multi-way analysis of variance affirmed that Al uptake, in acute experiments, was significantly affected by the injected doses, organs (brain, liver, kidneys, intestine and spleen) and their interactions, while for sublethal experiments an altogether effect based on time (1, 3, 7, 14, 28 days), doses (0 and 1.3 g), organs and their interactions was reported. In addition, Al accumulated in the brain, liver, kidney, intestine and spleen of rats administered with Al2O3-NPs were significantly higher than the corresponding controls, during acute and sublethal experiments. The uptake of Al by the spleen of rats injected with acute doses was greater than that accumulated by kidney>brain>intestine>liver, whereas the brain of rats injected with sublethal dose accumulated lesser amount of Al followed by the kidney

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Radiative properties of micron-sized Al/air premixed flames described by an effective medium core-shell formulation

Arrieta

Blanchard

Laboureur

et al. 2023

International Journal of Heat and Mass Transfer

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Radiative properties of radially nonisothermal alumina particles with multiphase

Cited by 5 publications

References 20 publications

Fluctuating volume-current formulation of electromagnetic fluctuations in inhomogeneous media: Incandescence and luminescence in arbitrary geometries

Fluctuating volume-current formulation of electromagnetic fluctuations in inhomogeneous media: Incandescence and luminescence in arbitrary geometries

Studies on fate and toxicity of nanoalumina in male albino rats

Radiative properties of micron-sized Al/air premixed flames described by an effective medium core-shell formulation

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