Готові списки джерел за темами / Flux radiatif

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Добірка наукової літератури з теми "Flux radiatif"

Автор: Grafiati
Опубліковано: 20 січня 2023
Оновлено: 31 липня 2025

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Статті в журналах з теми "Flux radiatif"

1

Singh, Bhawan, and Richard Taillefer. "Le bilan énergétique et le gel au sol : une analyse statistique." Géographie physique et Quaternaire 38, no. 2 (2007): 135–47. http://dx.doi.org/10.7202/032548ar.

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RÉSUMÉ Des mesures régulières détaillées des composantes du bilan radiatif et énergétique et des régimes thermiques et hydrique du sol jusqu'à 5 m de profondeur ont été prises entre les mois d'août 1979 et août 1980 dans une forêt de pins près du lac Hélène, Jamésie. Les analyses statistiques faites sur ces mesures indiquent que la température du sol et, par conséquent, le gel à l'intérieur du sol s'expliquent par les échanges d'énergie radiative et calorifique près de la surface et par l'accumulation de la neige sur la surface. Pour des périodes de temps choisies, les températures du sol sont
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2

Tsoy, Alexandr, Alexandr Granovskiy, Dmitriy Koretskiy, et al. "Experimental Study of the Heat Flow and Energy Consumption during Liquid Cooling Due to Radiative Heat Transfer in Winter." Energies 16, no. 13 (2023): 4865. http://dx.doi.org/10.3390/en16134865.

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Radiation cooling is a passive energy saving cooling technology. The process of cooling heat transfer liquid due to the combined effect of night radiative cooling and convection of air at negative temperatures (in winter) is studied. The radiator used for cooling was built into the roof of the building. Its radiating plate was made of a steel sheet coated with zinc oxide. In it, heat dissipation was carried out both from the upper and lower sides of the radiating plate. The experimental values of the heat flux ranged from 20 to 80 W·m−2 at a temperature difference between heat transfer liquid
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3

Cantat, Olivier, and Alexandre Follin. "Les singularités thermiques d’un espace périurbain dans une agglomération de dimension moyenne : le cas de Caen durant l’hiver 2018/2019." Climatologie 17 (2020): 3. http://dx.doi.org/10.1051/climat/202017003.

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L’analyse comparative des données météorologiques de la station rurale de Carpiquet avec une station expérimentale en périphérie de la ville de Caen a permis de montrer la présence en hiver d’un léger îlot de chaleur péri-urbain (ICPU) (moyenne de +0,4°C). Il est caractérisé par un maximum d’intensité en fin d’après-midi et début de soirée (+0,8°C) et des écarts faibles le reste du temps. Derrière cette image moyenne, une analyse du continuum temporel au pas de temps journalier puis horaire a mis en exergue des comportements différenciés selon les types de temps. Le caractère le plus original
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4

Pomraning, G. C. "Multimode flux-limited diffusion theory." Laser and Particle Beams 10, no. 2 (1992): 239–51. http://dx.doi.org/10.1017/s0263034600004389.

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Анотація:
We present a diffusion approximation describing the flow of thermal radiation that preserves several important features of the underlying equation of radiative transfer. Specifically, this diffusion description: (1) is flux limited; (2) reduces to the correct transport weak gradient limit; (3) allows correct and simultaneous exponential growth and Decay for a certain class of problems; (4) gives correct transport results for certain contiguous half-space problems; and (5) allows the radiative flux and the gradient of the radiation energy density to point in independent directions. This treatme
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5

Redko, A.A., N.V. Kulikova, a. Yu.A. Burd, S.V. Pavlovsky, O.F. Redko, and Yu.A. Pivnenko. "Numerical Analysis of Parameters of the Radiant Heating System with Radiating Panels." Problemele Energeticii Regionale 1(45) (January 15, 2020): 59–70. https://doi.org/10.5281/zenodo.3713405.

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The main goal of the work is to study radiation and convection heat-exchange in a closed volume of a panel radiator to assess the possibility of transferring short-wave radiation in the working area to a comfortable long-wave one. The goals have been achieved through the use of a mathematical model of three-dimensional unsteady flow and complex heat exchange in a radiant heating system, in which the system of Reynolds-averaged Navier – Stokes equations is added, supplemented by the radiative transfer equation. The effect of the shape and size of the panel, surface material and the presen
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6

Perovich, Donald K. "Sunlight, clouds, sea ice, albedo, and the radiative budget: the umbrella versus the blanket." Cryosphere 12, no. 6 (2018): 2159–65. http://dx.doi.org/10.5194/tc-12-2159-2018.

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Abstract. The surface radiation budget of the Arctic Ocean plays a central role in summer ice melt and is governed by clouds and surface albedo. I calculated the net radiation flux for a range of albedos under sunny and cloudy skies and determined the break-even value, where the net radiation is the same for cloudy and sunny skies. Break-even albedos range from 0.30 in September to 0.58 in July. For snow-covered or bare ice, sunny skies always result in less radiative heat input. In contrast, leads always have, and ponds usually have, more radiative input under sunny skies than cloudy skies. S
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7

Rosida, NFN, and Indah Susanti. "PENGARUH AEROSOL TERHADAP FLUKS RADIASI NETO DI LAPISAN ATAS ATMOSFER DAN DI PERMUKAAN BERDASAR DATA SATELIT [INFLUENCE OF AEROSOL ON NET RADIATION FLUX AT THE TOP OF ATMOSPHERE AND SURFACE BASED ON SATELLITE]." Jurnal Sains Dirgantara 14, no. 2 (2017): 27. http://dx.doi.org/10.30536/j.jsd.2016.v14.a2444.

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The direct effects of aerosols on radiation budget in Indonesia have been analyzed based on radiation flux net data from the Clouds and the Earth's Radiant Energy System (CERES) instrument and aerosol optical depth (AOD) from the Moderate Resolution Imaging Spectroradiometer (MODIS) Terra. Radiation budget calculated including short wave and long-wave radiation. Data from March 2000 until February 2010, processed using Grads version 2 to obtain aerosol radiative forcing value. Net radiation in clean sky, estimated using slope method. The analysis showed high temporal variation of aerosols dens
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8

JHA, T. N. "Characteristics of radiative and non-radiative energy fluxes over monsoon trough zone." MAUSAM 52, no. 3 (2022): 581–92. http://dx.doi.org/10.54302/mausam.v52i3.1729.

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In order to describe behaviour of radiative and non-radiative erergy fluxes in the surface layer, computation of net radiation, sensible, latent and heat soil flux has been done using hourly global radiation, slow response data of MONTBLEX-90 and surface observation of Varanasi and Jodhpur during rainy and non-rainy days in July 1990. Daily and hourly ground temperature is calculated solving one dimensional heat conduction equation and soil heat flux is computed using force restored method .Outgoing Longwave Radiation (OLR) is calculated by Stefan-Boltzrnann law of radiation and the largest di
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9

Wang, Zhenhua, Shikui Dong, Zhihong He, Lei Wang, Weihua Yang, and Bengt Ake Sunden. "Numerical analysis of radiative heat transfer in an inhomogeneous and non-isothermal combustion system considering H2O/CO2/CO and soot." International Journal of Numerical Methods for Heat & Fluid Flow 27, no. 9 (2017): 1967–85. http://dx.doi.org/10.1108/hff-03-2016-0127.

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Purpose H2O, CO2 and CO are three main species in combustion systems which have high volume fractions. In addition, soot has strong absorption in the infrared band. Thus, H2O, CO2, CO and soot may take important roles in radiative heat transfer. To provide calculations with high accuracy, all of the participating media should be considered non-gray media. Thus, the purpose of this paper is to study the effect of non-gray participating gases and soot on radiative heat transfer in an inhomogeneous and non-isothermal system. Design/methodology/approach To solve the radiative heat transfer, the fl
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10

Knight, I. K., and A. L. Sullivan. "A semi-transparent model of bushfire flames to predict radiant heat flux." International Journal of Wildland Fire 13, no. 2 (2004): 201. http://dx.doi.org/10.1071/wf03047.

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The radiation emitted by a body is related through the Stefan-Boltzmann equation to the temperature of the emitting element. In the case of flame, the emitting elements are carbon particles. Existing models of bushfire flame radiation assume, however, that the flame radiates as a surface with an emissivity of 1 (i.e. a blackbody). This is only true when the flame is thick enough to provide a continuous wall of radiating carbon particles. In this paper we propose a semi-physical model of radiant heat flux from bushfire flame that calculates the emissivity of the flame front based on its geometr
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Дисертації з теми "Flux radiatif"

1

Guilbert, Simonne. "Comparaisons des flux ondes courtes POLDER / PARASOL et CERES / Aqua : amélioration des flux ondes courtes POLDER / PARASOL." Electronic Thesis or Diss., Université de Lille (2022-....), 2022. http://www.theses.fr/2022ULILR027.

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Анотація:
Dans le contexte actuel du changement climatique, il est essentiel de bien caractériser et de pouvoir suivre dans le temps le bilan d'énergie radiative terrestre au sommet de l'atmosphère et à la surface. Du point de vue de la mesure, obtenir une estimation correcte du bilan radiatif passe par la détermination précise des flux radiatifs solaire et infra-rouge. L'objectif de cette thèse est d'étudier les flux radiatifs solaires obtenus à partir du radiomètre français POLDER embarqué sur le microsatellite PARASOL du CNES. Une première partie des travaux de thèse présentés consiste à comparer les
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2

Baud, Germain. "Conception de récepteurs solaires à lit fluidisé sous flux radiatif concentré." Thesis, Toulouse, INPT, 2011. http://www.theses.fr/2011INPT0106/document.

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Анотація:
L'objectif de ce travail est d’évaluer le positionnement et le potentiel des récepteurs à lit fluidisé à changement de section par rapport aux autres méthodes de chauffage de gaz à haute température par voie solaire. A cette fin, une connaissance approfondie des phénomènes thermiques et hydrodynamiques du récepteur est nécessaire. Pour acquérir cette connaissance, nous avons modélisé les transferts thermiques dans le récepteur en portant une attention particulière sur les transferts radiatifs en prenant en compte les diffusions multiples de la lumière dans le milieu particulaire, les effets de
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3

Leray, Cedric. "Etude du comportement thermique et thermomécanique des récepteurs solaires sous haut flux radiatif." Thesis, Perpignan, 2017. http://www.theses.fr/2017PERP0003/document.

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Анотація:
Dans le contexte énergétique qui se profile, la production d’électricité par voie solaire thermodynamique s’avère une solution prometteuse, que ce soit pour des considérations économiques, d’échelle de production ou environnementales. Une voie d’amélioration du rendement des centrales solaires à tour consiste à utiliser des cycles thermodynamiques à haut rendement type cycles combinés. Cela nécessite de pouvoir fournir un fluide de travail pressurisé à très haute température (10bar et 1000°C minimum). Ce manuscrit présente les travaux menés afin de développer et de viabiliser un concept d’abso
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4

Simonet, Frédéric. "Optimisation du calcul du flux radiatif dans les lampes a decharge haute pression : applications." Toulouse 3, 1997. http://www.theses.fr/1997TOU30213.

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Анотація:
La modelisation des plasmas de decharge est actuellement limite par le fait qu'il est tres difficile d'integrer dans un modele plasma le calcul complet du transfert radiatif. Le modele propose (modele opt) constitue un pas important vers la resolution de ce probleme dans la mesure ou il permet de gagner plus de deux ordres de grandeur sur le temps de calcul du coefficient d'emission nette sans faire de reel sacrifice sur la precision des resultats (les desaccords observes sont de l'ordre de 15%). Ce modele presente en outre l'avantage d'avoir un champ d'application couvrant plusieurs types de
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5

Herin, Philippe. "Conception et caractérisation de capteurs de flux radiatif et convectif : application aux mesures "in situ"." Lille 1, 1988. http://www.theses.fr/1988LIL10051.

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Анотація:
Mesures des composantes radiative et convective du flux thermique sur la surface d'une paroi opaque en régime variable. Utilisation des techniques de traitement du signal par intercorrélation. Modélisation des transferts de chaleur à l'intérieur d'une thermopile constituée de jonctions thermoélectriques Cu-Cn de grandes surfaces. Réalisation d'un montage de type lame d'air.
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6

Ringenbach, Nicolas. "Bilan radiatif et flux de chaleur en climatologie urbaine : Mesures,modélisation et validation sur Strasbourg." Université Louis Pasteur (Strasbourg) (1971-2008), 2004. https://publication-theses.unistra.fr/public/theses_doctorat/2004/RINGENBACH_Nicolas_2004.pdf.

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7

Herin, Philippe. "Conception et caractérisation de capteurs de flux radiatif et convectif application aux mesures "in situ /." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37614253p.

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8

Ben, Rehouma Asma. "Restitutions et analyse des paramètres climatiques mesurés par satellites sur l'Afrique et l'Océan Atlantique pour les deux dernières décennies : Tendances et variabilité des flux radiatifs en liaison avec les autres paramètres." Paris 6, 2007. http://www.theses.fr/2007PA066710.

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9

Dia, Oumar, and Martin Hounkanlin. "Etude du transfert thermique et des instabilites dans un film liquide soumis a un flux radiatif." Poitiers, 1991. http://www.theses.fr/1991POIT2308.

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Анотація:
Le travail que nous presentons concerne l'etude theorique des phenomenes couples de transfert radiatif et thermique dans un film liquide constitue par une lame d'eau de faible epaisseur et son domaine environnant. Leur modelisation part d'une resolution de l'equation locale de conservation de la luminance monochromatique pour le rayonnement, couplee aux autres equations locales de transfert d'enthalpie et de masse. En resolvant ces equations, nous avons obtenu une solution analytique pour les champs de temperature stationnaire et instationnaire. Nous examinons aussi l'influence du transfert ra
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10

Zhang, Xing Long. "Etude expérimentale et modélisation théorique d'un feu de combustible liquide de petite dimension : influence d'un flux radiatif extérieur." Poitiers, 1990. http://www.theses.fr/1990POIT2259.

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Анотація:
Cette etude presente des resultats relatifs a des travaux experimentaux et theoriques concernant la modelisation d'une flamme de diffusion turbulente a base horizontale de petite dimension et les transferts d'energie radiative qui lui sont associes, en particulier lorsque cette flamme est soumise a des flux rayonnes exterieurs. Les champs de vitesse de temperature, de concentration en co#2, co et o#2 ainsi que de coefficient d'absorption du aux suies ont ete determines. Ces mesures ont permis d'obtenir des informations tres instructives sur l'evolution de la phase reactive, sous l'influence de
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Книги з теми "Flux radiatif"

1

United States. National Aeronautics and Space Administration., ed. Studies of the net surface radiative flux from satellite radiances during FIFE: Final report. National Aeronautics and Space Administration, 1993.

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2

Mehta, Amita. Longwave radiative flux calculations in the TOVS pathfinder path A data set. National Aeronautics and Space Administration, Goddard Space Flight Center, 1999.

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3

United States. National Aeronautics and Space Administration., ed. Galileo net flux radiometer report 1997. Arizona University, Dept. of Planetary Sciences, Lunar and Planetary Laboratory, 1997.

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4

Center, Goddard Space Flight, ed. Radiation flux tables for ICRCCM using the GLA GCM radiation codes. National Aeronautics and Space Administration, Goddard Space Flight Center, 1986.

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5

Center, Goddard Space Flight, ed. The geomagnetic field and radiation in near-earth orbits. National Aeronautics and Space Administration, Goddard Space Flight Center, 1999.

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6

Hartmann, Jörg. Radiation and eddy flux experiment 1991 (REFLEX 1). Alfred-Wegener-Institut für Polar- und Meeresforschung, 1992.

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7

Kottmeier, Christoph. Radiation and eddy flux experiment, 1991 (REFLEX II). Alfred-Wegener-Institut für Polar-und Meeresforschung, 1994.

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8

Jörg, Hartmann, ed. Radiation and eddy flux experiment 1995 (REFLEX III). Alfred-Wegener-Institut für Polar- und Meeresforschung, 1997.

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9

Hartmann, Jörg. Radiation and eddy flux experiment, 1991 (REFLEX 1). Alfred-Wegener-Institut für Polar-und Meeresforschung, 1992.

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10

Siegel, Robert. Two-flux Green's function analysis for transient spectral radiation in a composite. American Institute of Aeronautics and Astronautics, 1996.

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Частини книг з теми "Flux radiatif"

1

Rouan, Daniel. "Flux, Radiative." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_584-2.

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2

Rouan, Daniel. "Flux, Radiative." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_584.

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3

Rouan, Daniel. "Flux, Radiative." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_584.

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4

Rouan, Daniel. "Flux, Radiative." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65093-6_584.

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5

Pyeon, Cheol Ho, Go Chiba, Tomohiro Endo, and Kenichi Watanabe. "Determination of Neutron Flux." In Reactor Laboratory Experiments at Kyoto University Critical Assembly. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-8070-9_6.

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AbstractThe physical quantity of neutron flux can be measured indirectly through interaction signals between the neutron and the material used as a neutron detector, as discussed in Chap. 5. To determine neutron flux, the measured reaction rate obtained in the experiments should be used. Acknowledging that it is not easy to determine neutron flux using the reaction rate, this chapter focuses on the theory of reactor physics related to neutron flux and discussion of radiation measurement techniques to determine neutron flux.
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6

Deng, Xiujie. "SSMB Radiation." In Springer Theses. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-5800-9_4.

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AbstractHaving discussed the methods to form and preserve microbunching in the last two chapters, now we present the theoretical and numerical study of the average and statistical property of coherent radiation from SSMB. Our results show that a kW-level average power quasi-continuous-wave EUV radiation can be obtained from an SSMB ring, provided that an average current of 1 A and bunch length of 3 nm microbunch train can be formed at the radiator which is assumed to be an undulator. Together with its narrowband feature, the EUV photon flux can reach $$10^{15}\sim 10^{16}$$ 10 15 ∼ 10 16 phs/s
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7

Song, Jia-Liang, Hua Chen, Yong-Dong Chen, Gai-Ge Yu, Hong-Wei Zou, and Bing-Chuan Han. "Coupled Heat Transfer Characteristics of SiC High Temperature Heat Exchanger in Solid Oxide Fuel Cell." In Proceedings of the 10th Hydrogen Technology Convention, Volume 1. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8631-6_23.

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AbstractHigh temperature heat exchanger is a crucial equipment in the BOP of SOFC. Replacing the commonly used metal materials with high-temperature resistant SiC ceramic materials for the manufacturing of SOFC high-temperature heat exchanger is a revolutionary technology with great application potential. This paper focused on SiC-based cathodic air preheater which is a novel SOFC high temperature heat exchanger, and firstly investigated the coupled radiation-conduction-convection heat transfer characteristics between flue gas and air at extremely high temperature conditions. The DO model in A
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8

Roederer, J. G. "Introduction to Trapped Particle Flux Mapping." In Radiation Belts: Models and Standards. American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm097p0149.

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Kalkofen, W., G. Bodo, S. Massaglia, and P. Rossi. "2D Flux Tube in Radiative Equilibrium." In Solar and Stellar Granulation. Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0911-3_61.

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Deng, Xiujie. "Introduction." In Springer Theses. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-5800-9_1.

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AbstractParticle accelerators as photon sources are advanced tools in investigating the structure and dynamical properties of matter, and have enabled advances in science and technology for more than half a century. The present workhorses of these sources are storage ring-based synchrotron radiation facilities [1–3] and linear accelerator-based free-electron lasers (FELs) [4–7]. These two kinds of sources deliver light with high repetition rate and high peak brilliance and power, respectively. Some applications, however, do need high average power and high photon flux. Kilowatt extreme ultravi
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Тези доповідей конференцій з теми "Flux radiatif"

1

Hu, Lu, Arvind Narayanaswamy, Xiaoyuan Chen, and Gang Chen. "Measurement of Near-Field Thermal Radiation Between Two Closely-Spaced Glass Plates." In ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/ht2008-56412.

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Анотація:
At a finite temperature, electrons and ions in any matter are under constant thermal agitation, acting as the random current source for thermal emission. The thermally-excited electromagnetic waves have two forms: the propagating modes that can leave the surface of the emitter and radiate freely into the space, and the non-propagating modes (evanescent modes) that do not radiate. The contribution from the propagating modes, or the far-field radiation modes, to the radiative heat flux is well-known and its maximum is governed by Planck’s law of blackbody radiation. The non-propagating modes do
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2

Strohle, Jochen, Uwe Schnell, and Klaus R. G. Hein. "A MEAN FLUX DISCRETE ORDINATES INTERPOLATION SCHEME FOR GENERAL CO-ORDINATES." In RADIATION III. ICHMT Third International Symposium on Radiative Transfer. Begellhouse, 2001. http://dx.doi.org/10.1615/ichmt.2001.radiationsymp.80.

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3

Afgan, Naim Hamdia, Neven Duic, Zeljko Bogdan, Daniel Rolph Schneider, and Nikola Serman. "TUBE LEAKAGE EFFECT ON RADIATIVE HEAT FLUX IN BOILER." In Radiative Transfer I. Proceedings of the First International Symposium on Radiation Transfer. Begellhouse, 1995. http://dx.doi.org/10.1615/ichmt.1995.radtransfproc.430.

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4

Whale, MacMurray D. "Effective Flux Temperature Formulation for Energy Conversion Using Microscale Thermal Radiation." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/htd-24275.

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Abstract The non-Planckian spectrum of microscale thermal radiation is interpreted using a formulation for non-thermal radiation. The non-thermal aspects of the energy spectrum that results when radiating bodies are in close proximity are examined using the fluctuational electrodynamic approach to microscale thermal radiation. A definition of the effective flux temperature for microscale thermal radiation is presented. A technique to determine the entropy flux in a microscale field is obtained and used to calculate the effective flux temperature for chromium surfaces. The effective flux temper
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5

Damm, David L., and Andrei G. Fedorov. "Spectral Radiative Heat Transfer Analysis of the Planar SOFC." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60142.

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Thermo-mechanical failure of components in planar-type solid oxide fuel cells (SOFCs) depends strongly on the local temperature gradients at the interfaces of different materials. Therefore, it is of paramount importance to accurately predict the temperature fields within the stack, especially near the interfaces. Because of elevated operating temperatures (of the order of 1000 K or even higher), radiation heat transfer could become a dominant mode of heat transfer in the SOFCs. In this study, we extend our recent work on radiative effects in solid oxide fuel cells (Journal of Power Sources, V
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6

Krueger, Katherine R., Wojciech Lipiński, and Jane H. Davidson. "Operational Performance of the University of Minnesota 45kWe High-Flux Solar Simulator." In ASME 2012 6th International Conference on Energy Sustainability collocated with the ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/es2012-91119.

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This paper presents measured performance of the University of Minnesota’s 45 kWe indoor high-flux solar simulator. The simulator consists of seven radiation units, each comprised of a 6.5 kWe xenon short arc lamp coupled to a reflector in the shape of a truncated ellipsoid of revolution. Data include flux distribution at the focal plane for all seven radiation units operating in tandem and for individual radiation units. The flux distribution is measured optically by acquiring the image of radiation reflected from a Lambertian target with a CCD camera equipped with neutral density optical filt
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7

Ilyinsky, Alexander I. "INVERSE RADIATIVE HEAT TRANSFER TECHNIQUE FOR HEAT FLUX RESTORATION USING OPTIMAL WIENER FILTRATION." In Radiative Transfer I. Proceedings of the First International Symposium on Radiation Transfer. Begellhouse, 1995. http://dx.doi.org/10.1615/ichmt.1995.radtransfproc.370.

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8

Murthy, Sunil, and Andrei Fedorov. "Radiation Heat Transfer Analysis of the Monolith-Type Solid Oxide Fuel Cell." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-41796.

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In this study, a modeling framework for heat and mass transport is investigated for a unit cell of the monolith type SOFC, with emphasis on quantifying the radiation heat transfer effects. The Schuster-Schwartzchild two-flux approximation is used for treating thermal radiation transport in the optically thin YSZ electrolyte, and the Rosseland radiative thermal conductivity is used to account for radiation effects in the optically thick Ni-YSZ and LSM electrodes. The thermal radiation heat transfer is coupled to the overall energy conservation equations through the divergence of the local radia
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9

Miguel, R. B., F. H. R. França, I. M. Machado, F. M. Pereira, and P. R. Pagot. "Application of Inverse Analysis to Determine the Parameters of the Weighted Multi Point Source Model for the Prediction of Heat Flux From Flames." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-52544.

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Thermal radiation is responsible for a substantial portion of the heat transfer from a flame. Radiative characteristics of jet fires are usually expressed through the use of the fraction of heat radiated. Detailed flame simulations provide useful information but may be prohibitive for practical applications due to the significant computational resources that are required. The weighted-multi-point-source model uses point sources with different weights to simulate the contribution of each portion of the flame. This method can give good predictions of the radiant heat flux both in the near and fa
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10

Kim, Kyunghan, and Zhixiong Guo. "Discrete Ordinates Method for Transient Radiation Transfer in Cylindrical Enclosures." In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47256.

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The Discrete Ordinates Method (DOM) for solving transient radiation transfer equation in cylindrical coordinates is developed for radiation heat transfer in participating turbid media in pico-scale time domain. The application problems addressed here are laser tissue welding and soldering. The novelty of this study lies with the use of ultrashort laser pulses as the irradiation source. The characteristics of transient radiation heat transfer in ultrafast laser tissue welding and soldering are studied with the DOM developed. The temporal distribution of radiative energy inside the tissue cylind
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Звіти організацій з теми "Flux radiatif"

1

Grossman, A. S., K. E. Grant, and D. J. Wuebbles. Radiative flux calculations at UV and visible wavelengths. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10108002.

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2

Till, Andrew. Discretization Writeup for Grey Flux-Limited Radiation Diffusion. Office of Scientific and Technical Information (OSTI), 2020. http://dx.doi.org/10.2172/1716739.

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3

Weber, J. M., and S. L. Hulbert. Flux and brightness calculations for various synchrotron radiation sources. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/6038769.

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4

Weber, J. M., and S. L. Hulbert. Flux and brightness calculations for various synchrotron radiation sources. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/10119897.

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5

Whiteman, C. D., and Sebastian W. Hoch. Role of Radiative Flux Divergence in Stable Boundary Layer Development. Defense Technical Information Center, 2011. http://dx.doi.org/10.21236/ada545624.

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6

Harbour, Logan, Jean Ragusa, Yaqi Wang, Sebastian Schunert, Derek Gaston, and Mark DeHart. Uncollided Flux Implementation for Discrete Ordinates Radiation Transport Solutions in Rattlesnake. Office of Scientific and Technical Information (OSTI), 2017. http://dx.doi.org/10.2172/1468543.

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7

Ragusa, Jean C., and Mark D. DeHart. Uncollided Flux Techniques for Discrete-Ordinate Radiation Transport Solutions in Rattlesnake. Office of Scientific and Technical Information (OSTI), 2016. http://dx.doi.org/10.2172/1364492.

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8

Tenenbaum, P. Synchrotron Radiation Effects in the IR Solenoid Flux Excluder(LCC-0007). Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/826902.

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9

Ogren, John A., Ellsworth G. Dutton, and Allison C. McComiskey. Development of Aerosol Models for Radiative Flux Calculations at ARM Sites. Office of Scientific and Technical Information (OSTI), 2006. http://dx.doi.org/10.2172/936852.

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10

DiDomizio, Matthew, and Jonathan Butta. Measurement of Heat Transfer and Fire Damage Patterns on Walls for Fire Model Validation. UL Research Institutes, 2024. http://dx.doi.org/10.54206/102376/hnkr9109.

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Fire models are presently employed by fire investigators to make predictions of fire dynamics within structures. Predictions include the evolution of gas temperatures and velocities, smoke movement, fire growth and spread, and thermal exposures to surrounding objects, such as walls. Heat flux varies spatially over exposed walls based on the complex thermal interactions within the fire environment, and is the driving factor for thermally induced fire damage. A fire model predicts the temperature and heat transfer through walls based on field predictions, such as radiative and convective heat fl
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