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Journal articles on the topic 'Transferts radiatif'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Farhat, Habib, and Mohamed-Sassi Radhouani. "Étude tridimensionnelle du transfert radiatif dans un milieu semi-transparent diffusant anisotrope par la méthode des transferts discrets modifiée." Revue Générale de Thermique 36, no. 5 (May 1997): 330–44. http://dx.doi.org/10.1016/s0035-3159(97)81597-8.

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2

Dubuisson, Philippe, and Adrien Deschamps. "Troisième atelier Trattoria consacré au transfert radiatif atmosphérique." La Météorologie, no. 113 (2021): 019. http://dx.doi.org/10.37053/lameteorologie-2021-0041.

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Le Cnes, en collaboration avec le CNRS/Insu et Météo-France, organisait en janvier 2020 à Toulouse la troisième édition de l'atelier Trattoria (Transfert radiatif dans les atmosphères terrestres pour les observations spatiales). Cet atelier est principalement consacré aux codes de transfert radiatif dans l'atmosphère terrestre pour les applications de télédétection spatiale, opérant sur l'ensemble de la gamme des longueurs d'onde de l'ultraviolet aux micro-ondes. Ces codes numériques sont fondamentaux pour la préparation des instruments de télédétection, ainsi que pour le traitement et l'exploitation des données satellitaires. Cet atelier était ouvert à tous les chercheurs, ingénieurs, post-doctorants et doctorants du domaine. Les résultats et recommandations de l'atelier doivent servir de guide au Cnes et aux divers participants et utilisateurs français et européens de codes de transfert radiatif. The CNES, in collaboration with the CNRS/INSU and Météo-France, organized in January 2020 in Toulouse the third edition of the Trattoria workshop (Transfert radiatif dans les atmosphères terrestres pour les observations spatiales). This workshop is mainly devoted to radiation transfer codes in the Earth's atmosphere for space remote sensing applications, operating over the entire wavelength range from ultraviolet to microwaves. These numerical codes are fundamental for the preparation of remote sensing instruments, as well as for the processing and exploitation of satellite data. This workshop was open to all researchers, engineers, post-doctoral and doctoral students in the field. The results and recommendations of the workshop should serve as a "guide" for CNES and the various French and European participants and users of radiative transfer codes.

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3

Gasimov, Naghi, Muharrem Karaaslan, Cumali Sabah, and Faruk Karadag. "Some aspects of mass-energy equivalence which appears in left-handed metamaterials." EPJ Applied Metamaterials 6 (2019): 16. http://dx.doi.org/10.1051/epjam/2019013.

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In this work, the concept of mass-energy equivalence in left-handed metamaterials is discussed by following Einstein's box thought experiment. Left-handed metamaterials are artificial composite structures that exhibit unusual properties, especially negative refractive index, in which phase and group velocities are directed oppositely. Equation E = mc2 assumes that, in vacuum, the propagation of an electromagnetic radiation from emitter to receiver is accompanied by the transfer of mass. It was hypothesized previously that if the space between emitter and receiver is medium with a negative refractive index, then radiation transfers the mass not from the emitter to receiver as expected, but rather from the receiver to the emitter due to the opposite directions of phase and group velocities. In this paper, it is shown that even though one radiating atom is taken, the negative mass transferring must be in force. In particular, it means that, if the atom radiates a photon in a medium with negative refractive index, photon transfers the mass not from the atom, but to the atom.

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4

Cheng, Tien-Chun, Chung-Jen Tseng, Ling-Chia Weng, and Shih-Kuo Wu. "Combined natural convection and radiation with temperature-dependent properties." Thermal Science 22, no. 2 (2018): 921–30. http://dx.doi.org/10.2298/tsci160225171c.

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This paper investigates the effects of temperature dependence of radiative properties of a medium on radiation and natural convection interaction in a rectangular enclosure. The radiative transfer equation is solved using the discrete ordinates method, and the momentum, continuity, and energy equations are solved by the finite volume method. Effects of the conduction-to-radiation parameter, Rayleigh number, and optical thickness are discussed. Results show that temperature dependence of radiative properties affects the temperature gradient, and hence the energy transport even in relatively weak radiation condition. On the other hand, temperature dependence of radiative properties has relatively insignificant effects on convection characteristics, even though it does affect the way that energy transfers into the system. As conduction-to-radiation parameter is decreased or Rayleigh number is increased, the effects of temperature dependence of radiative properties become more significant.

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Rabi, J. A., and M. L. De Souza Santos. "INCORPORATION OF A TWO-FLUX MODEL FOR RADIATIVE HEAT TRANSFER IN A COMPREHENSIVE FLUIDIZED BED SIMULATOR PART I: PRELIMINARY THEORETICAL INVESTIGATIONS." Revista de Engenharia Térmica 2, no. 1 (June 30, 2003): 64. http://dx.doi.org/10.5380/reterm.v2i1.3516.

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Over the last two decades, a comprehensive mathematical model and its corresponding computational program, aimed to simulate steady-state operations of bubbling fluidized bed equipments, has been continuously improved and tested. Despite its success, the simulator has employed a simple approach for radiative heat transfers. In cases of high temperatures, thermal radiation becomes an important energy transfer mode and the original model could lead to deviations above acceptable levels. The purpose of the present work was to improve the model for thermal radiation heat transfer between all solid particles in the bed section by applying a two-flux method to a non-homogeneous polydispersed particulate media in radiative equilibrium. Gases in the emulsion and in the bubbles were assumed transparent to thermal radiation. This first part of the paper presents and discusses the basic structure of the former mathematical model and of the new one.

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6

TIIHONEN, T. "FINITE ELEMENT APPROXIMATION OF NONLOCAL HEAT RADIATION PROBLEMS." Mathematical Models and Methods in Applied Sciences 08, no. 06 (September 1998): 1071–89. http://dx.doi.org/10.1142/s0218202598000494.

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This paper focuses on finite element error analysis for problems involving both conductive and radiative heat transfers. The radiative heat exchange is modeled with a nonlinear and nonlocal term that also makes the problem non-monotone. The continuous problem has a maximum principle which suggests the use of inverse monotone discretizations. We also estimate the error due to the approximation of the boundary by showing continuous dependence on the geometric data for the continuous problem. The final result of this paper is a rigorous justification and error analysis for methods that use the so-called view factors for numerical modeling of the heat radiation.

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7

Tan, Yixuan, Baoan Liu, Sheng Shen, and Zongfu Yu. "Enhancing radiative energy transfer through thermal extraction." Nanophotonics 5, no. 1 (June 1, 2016): 22–30. http://dx.doi.org/10.1515/nanoph-2016-0008.

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Abstract Thermal radiation plays an increasingly important role in many emerging energy technologies, such as thermophotovoltaics, passive radiative cooling and wearable cooling clothes [1]. One of the fundamental constraints in thermal radiation is the Stefan-Boltzmann law, which limits the maximum power of far-field radiation to P0 = σT4S, where σ is the Boltzmann constant, S and T are the area and the temperature of the emitter, respectively (Fig. 1a). In order to overcome this limit, it has been shown that near-field radiations could have an energy density that is orders of magnitude greater than the Stefan-Boltzmann law [2-7]. Unfortunately, such near-field radiation transfer is spatially confined and cannot carry radiative heat to the far field. Recently, a new concept of thermal extraction was proposed [8] to enhance far-field thermal emission, which, conceptually, operates on a principle similar to oil immersion lenses and light extraction in light-emitting diodes using solid immersion lens to increase light output [62].Thermal extraction allows a blackbody to radiate more energy to the far field than the apparent limit of the Stefan-Boltzmann law without breaking the second law of thermodynamics.Thermal extraction works by using a specially designed thermal extractor to convert and guide the near-field energy to the far field, as shown in Fig. 1b. The same blackbody as shown in Fig. 1a is placed closely below the thermal extractor with a spacing smaller than the thermal wavelength. The near-field coupling transfers radiative energy with a density greater than σT4. The thermal extractor, made from transparent and high-index or structured materials, does not emit or absorb any radiation. It transforms the near-field energy and sends it toward the far field. As a result, the total amount of far-field radiative heat dissipated by the same blackbody is greatly enhanced above SσT4, where S is the area of the emitter. This paper will review the progress in thermal extraction. It is organized as follows. In Section 1, we will discuss the theory of thermal extraction [8]. In Section 2, we review an experimental implementation based on natural materials as the thermal extractor [8]. Lastly, in Section 3, we review the experiment that uses structured metamaterials as thermal extractors to enhance optical density of states and far-field emission [9].

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8

Luévano-Martínez, Luis Alberto, and Anna L. Duncan. "Origin and diversification of the cardiolipin biosynthetic pathway in the Eukarya domain." Biochemical Society Transactions 48, no. 3 (June 3, 2020): 1035–46. http://dx.doi.org/10.1042/bst20190967.

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Cardiolipin (CL) and its precursor phosphatidylglycerol (PG) are important anionic phospholipids widely distributed throughout all domains of life. They have key roles in several cellular processes by shaping membranes and modulating the activity of the proteins inserted into those membranes. They are synthesized by two main pathways, the so-called eukaryotic pathway, exclusively found in mitochondria, and the prokaryotic pathway, present in most bacteria and archaea. In the prokaryotic pathway, the first and the third reactions are catalyzed by phosphatidylglycerol phosphate synthase (Pgps) belonging to the transferase family and cardiolipin synthase (Cls) belonging to the hydrolase family, while in the eukaryotic pathway, those same reactions are catalyzed by unrelated homonymous enzymes: Pgps of the hydrolase family and Cls of the transferase family. Because of the enzymatic arrangement found in both pathways, it seems that the eukaryotic pathway evolved by convergence to the prokaryotic pathway. However, since mitochondria evolved from a bacterial endosymbiont, it would suggest that the eukaryotic pathway arose from the prokaryotic pathway. In this review, it is proposed that the eukaryote pathway evolved directly from a prokaryotic pathway by the neofunctionalization of the bacterial enzymes. Moreover, after the eukaryotic radiation, this pathway was reshaped by horizontal gene transfers or subsequent endosymbiotic processes.

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9

Mygal, V. P. "Influence of radiation heat transfer dynamics on crystal growth." Functional materials 25, no. 3 (September 27, 2018): 574–80. http://dx.doi.org/10.15407/fm25.03.574.

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10

Jeong, S. H., and M. Y. Ha. "Computer Modeling of the Continuous Annealing Furnace." Journal of Energy Resources Technology 114, no. 4 (December 1, 1992): 345–50. http://dx.doi.org/10.1115/1.2905963.

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A computer program to calculate the strip temperature heated in the continuous annealing furnace was developed, using the zone method for radiative heat transfer analysis with the measured gas temperature in the furnace. Using the FE operator, the present study considered the effects of soot and transient species in addition to the H2O-CO2 gas mixture on the gas radiative heat transfer. The predicted strip temperature distribution for FE = 1.05 represented well the measured data. The maximum difference in the heat flux transfered to the strip from the combustion gas for FE = 1.0 (without soot and transient species gas radiation) and 1.05 (with soot and transient species gas radiation) was about 15 percent. The present study also investigated the effects of line speed and thickness variations on the strip temperature, establishing the bases for the on-line computer model.

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11

Liang, X. Z., and F. Zhang. "Cloud-Aerosol-Radiation (CAR) ensemble modeling system." Atmospheric Chemistry and Physics Discussions 13, no. 4 (April 19, 2013): 10193–261. http://dx.doi.org/10.5194/acpd-13-10193-2013.

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Abstract. A Cloud-Aerosol-Radiation (CAR) ensemble modeling system has been developed to incorporate the largest choices of alternative parameterizations for cloud properties (cover, water, radius, optics, geometry), aerosol properties (type, profile, optics), radiation transfers (solar, infrared), and their interactions. These schemes form the most comprehensive collection currently available in the literature, including those used by the world leading general circulation models (GCMs). The CAR provides a unique framework to determine (via intercomparison across all schemes), reduce (via optimized ensemble simulations), and attribute specific key factors for (via physical process sensitivity analyses) the model discrepancies and uncertainties in representing greenhouse gas, aerosol and cloud radiative forcing effects. This study presents a general description of the CAR system and illustrates its capabilities for climate modeling applications, especially in the context of estimating climate sensitivity and uncertainty range caused by cloud-aerosol-radiation interactions. For demonstration purpose, the evaluation is based on several CAR standalone and coupled climate model experiments, each comparing a limited subset of the full system ensemble with up to 896 members. It is shown that the quantification of radiative forcings and climate impacts strongly depends on the choices of the cloud, aerosol and radiation schemes. The prevailing schemes used in current GCMs are likely insufficient in variety and physically biased in a significant way. There exists large room for improvement by optimally combining radiation transfer with cloud property schemes.

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12

Liang, X. Z., and F. Zhang. "The cloud–aerosol–radiation (CAR) ensemble modeling system." Atmospheric Chemistry and Physics 13, no. 16 (August 22, 2013): 8335–64. http://dx.doi.org/10.5194/acp-13-8335-2013.

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Abstract. A cloud–aerosol–radiation (CAR) ensemble modeling system has been developed to incorporate the largest choices of alternate parameterizations for cloud properties (cover, water, radius, optics, geometry), aerosol properties (type, profile, optics), radiation transfers (solar, infrared), and their interactions. These schemes form the most comprehensive collection currently available in the literature, including those used by the world's leading general circulation models (GCMs). CAR provides a unique framework to determine (via intercomparison across all schemes), reduce (via optimized ensemble simulations), and attribute specific key factors for (via physical process sensitivity analyses) the model discrepancies and uncertainties in representing greenhouse gas, aerosol, and cloud radiative forcing effects. This study presents a general description of the CAR system and illustrates its capabilities for climate modeling applications, especially in the context of estimating climate sensitivity and uncertainty range caused by cloud–aerosol–radiation interactions. For demonstration purposes, the evaluation is based on several CAR standalone and coupled climate model experiments, each comparing a limited subset of the full system ensemble with up to 896 members. It is shown that the quantification of radiative forcings and climate impacts strongly depends on the choices of the cloud, aerosol, and radiation schemes. The prevailing schemes used in current GCMs are likely insufficient in variety and physically biased in a significant way. There exists large room for improvement by optimally combining radiation transfer with cloud property schemes.

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13

Ficker, Tomas. "Estimations of Radiative Heat Transfers in Enclosures." IOP Conference Series: Materials Science and Engineering 603 (September 18, 2019): 022031. http://dx.doi.org/10.1088/1757-899x/603/2/022031.

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14

RUMBALL, K. M., and M. A. TONKIN. "Absence of Flexor Carpi Radialis." Journal of Hand Surgery 21, no. 6 (December 1996): 778. http://dx.doi.org/10.1016/s0266-7681(96)80187-2.

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15

Bourrou, Rémi, Olga Budenkova, Christophe Lafon, and Annie Gagnoud. "Numerical modelling of heat transfers between inductively heated metallic and dielectric phases." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 39, no. 1 (February 8, 2020): 108–16. http://dx.doi.org/10.1108/compel-05-2019-0218.

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Purpose Heating with a low-frequency induction is a key phenomenon in a process dedicated to the treatment of nuclear wastes. This paper aims to present a step of the numerical model being developed to study this process. Design/methodology/approach A hydrodynamic model for the processing of a liquid charge consisting of a metallic phase and a dielectric one is developed based on a volume of fluid (VOF) approach coupled with electromagnetic calculations. The latter allows one to calculate the distribution of the Joule heating in the setup and radiative heat exchange inside the crucible is accounted with a surface-to-surface (S2S) model coupled with VOF. Findings Numerical results are compared with the measures obtained on the prototype of the process. The results are in good agreement but the model needs to be improved to consider the varying viscosity of the glass. Originality/value The usage of a S2S radiation model coupled to the VOF model is not common for studies of materials melted by electromagnetic induction. This paper demonstrates the feasibility of this approach.

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Ruizhong Rao, Ruizhong Rao. "Equivalence of MTF of a turbid medium and radiative transfer field." Chinese Optics Letters 10, no. 2 (2012): 020101–20103. http://dx.doi.org/10.3788/col201210.020101.

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Virchenko, Yu P. "One-dimensional stochastic model of radiative heat transfer in dielectric medium." Functional materials 23, no. 1 (March 15, 2016): 75–82. http://dx.doi.org/10.15407/fm23.01.075.

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18

WOLF, T. M., C. M. CLINKSCALES, and C. HAMLIN. "Flexor Carpi Ulnaris Tendon Transfers in Cerebral Palsy." Journal of Hand Surgery 23, no. 3 (June 1998): 340–43. http://dx.doi.org/10.1016/s0266-7681(98)80054-5.

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Flexor carpi ulnaris tendon transfer to either the extensor carpi radialis longus or extensor carpi radialis brevis has become a standard procedure to improve function in patients with cerebral palsy. In this retrospective study of the procedure, we have compared preoperative and postoperative wrist position, analysed potential outcome predictors and assessed function by objective and subjective measures. Sixteen children, with flexor carpi ulnaris transfer to extensor carpi radialis longus or brevis or extensor digitorum, were tested at an average follow-up of 4 years (range, 1–9). General resting position improved and the centre of the arc of motion averaged 6° pronation and 9° extension. Subjectively, 14 of 16 parents felt there was an improvement in function, 16 of 16 felt that cosmesis was improved, 14 of 16 would recommend the procedure to others, and 15 of 16 were satisfied overall.

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Qu, Yongfeng, Maya Milliez, Luc Musson-Genon, and Bertrand Carissimo. "Micrometeorological Modeling of Radiative and Convective Effects with a Building-Resolving Code." Journal of Applied Meteorology and Climatology 50, no. 8 (August 2011): 1713–24. http://dx.doi.org/10.1175/2011jamc2620.1.

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AbstractIn many micrometeorological studies with computational fluid dynamics, building-resolving models usually assume a neutral atmosphere. Nevertheless, urban radiative transfers play an important role because of their influence on the energy budget. To take into account atmospheric radiation and the thermal effects of the buildings in simulations of atmospheric flow and pollutant dispersion in urban areas, a three-dimensional (3D) atmospheric radiative scheme has been developed in the atmospheric module of the Code_Saturne 3D computational fluid dynamic model. On the basis of the discrete ordinate method, the radiative model solves the radiative transfer equation in a semitransparent medium for complex geometries. The spatial mesh discretization is the same as the one used for the dynamics. This paper describes ongoing work with the development of this model. The radiative scheme was previously validated with idealized cases. Here, results of the full coupling of the radiative and thermal schemes with the 3D dynamical model are presented and are compared with measurements from the Mock Urban Setting Test (MUST) and with simpler modeling approaches found in the literature. The model is able to globally reproduce the differences in diurnal evolution of the surface temperatures of the different walls and roof. The inhomogeneous wall temperature is only seen when using the 3D dynamical model for the convective scheme.

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20

Sigmund, Armin, Lena Pfister, Chadi Sayde, and Christoph K. Thomas. "Quantitative analysis of the radiation error for aerial coiled-fiber-optic distributed temperature sensing deployments using reinforcing fabric as support structure." Atmospheric Measurement Techniques 10, no. 6 (June 9, 2017): 2149–62. http://dx.doi.org/10.5194/amt-10-2149-2017.

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Abstract. In recent years, the spatial resolution of fiber-optic distributed temperature sensing (DTS) has been enhanced in various studies by helically coiling the fiber around a support structure. While solid polyvinyl chloride tubes are an appropriate support structure under water, they can produce considerable errors in aerial deployments due to the radiative heating or cooling. We used meshed reinforcing fabric as a novel support structure to measure high-resolution vertical temperature profiles with a height of several meters above a meadow and within and above a small lake. This study aimed at quantifying the radiation error for the coiled DTS system and the contribution caused by the novel support structure via heat conduction. A quantitative and comprehensive energy balance model is proposed and tested, which includes the shortwave radiative, longwave radiative, convective, and conductive heat transfers and allows for modeling fiber temperatures as well as quantifying the radiation error. The sensitivity of the energy balance model to the conduction error caused by the reinforcing fabric is discussed in terms of its albedo, emissivity, and thermal conductivity. Modeled radiation errors amounted to −1.0 and 1.3 K at 2 m height but ranged up to 2.8 K for very high incoming shortwave radiation (1000 J s−1 m−2) and very weak winds (0.1 m s−1). After correcting for the radiation error by means of the presented energy balance, the root mean square error between DTS and reference air temperatures from an aspirated resistance thermometer or an ultrasonic anemometer was 0.42 and 0.26 K above the meadow and the lake, respectively. Conduction between reinforcing fabric and fiber cable had a small effect on fiber temperatures (< 0.18 K). Only for locations where the plastic rings that supported the reinforcing fabric touched the fiber-optic cable were significant temperature artifacts of up to 2.5 K observed. Overall, the reinforcing fabric offers several advantages over conventional support structures published to date in the literature as it minimizes both radiation and conduction errors.

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Coquard, R., and D. Baillis. "Modeling of Heat Transfer in Low-Density EPS Foams." Journal of Heat Transfer 128, no. 6 (November 4, 2005): 538–49. http://dx.doi.org/10.1115/1.2188464.

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Expanded polystyrene (EPS) foams are one of the most widely used thermal insulators in the building industry. Owing to their very low density, both conductive and radiative heat transfers are significant. However, only few studies have already been conducted in the modeling of heat transfer in this kind of medium. This is due to their complex porous structure characterized by a double-scale porosity which has always been ignored by the previous works. In this study, we present a model of one-dimensional steady state heat transfer in these foams based on a numerical resolution of the radiation-conduction coupling. The modeling of the conductive and radiative properties of the foams takes into account their structural characteristics such as foam density or cell diameter and permits us to study the evolution of their equivalent thermal conductivity with these characteristics. The theoretical results have been compared to equivalent thermal conductivity measurements made on several EPS foams using a flux-meter apparatus and show a good agreement.

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Turpault, Rodolphe. "Construction d'un modèle M1-multigroupe pour les équations du transfert radiatif." Comptes Rendus Mathematique 334, no. 4 (January 2002): 331–36. http://dx.doi.org/10.1016/s1631-073x(02)02265-3.

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23

Tan He Ping, M. Ferre, and M. Lallemand. "Transfert radiatif dans NO3K fondu et la fonte vitreuse de B2O3." Revue de Physique Appliquée 22, no. 2 (1987): 125–38. http://dx.doi.org/10.1051/rphysap:01987002202012500.

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Kweon, Soon-Koo, Ji-Hwan Hwang, Sin-Myeong Park, Sungwook Hong, and Yisok Oh. "Analysis of Backscattering Coefficients of Corn Fields Using the First-Order Vector Radiative Transfer Technique." Journal of Korean Institute of Electromagnetic Engineering and Science 25, no. 4 (April 30, 2014): 476–82. http://dx.doi.org/10.5515/kjkiees.2014.25.4.476.

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Larson, Ellen L., Katherine B. Santosa, Susan E. Mackinnon, and Alison K. Snyder-Warwick. "Median to radial nerve transfer after traumatic radial nerve avulsion in a pediatric patient." Journal of Neurosurgery: Pediatrics 24, no. 2 (August 2019): 209–14. http://dx.doi.org/10.3171/2019.3.peds18550.

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This case report describes an isolated radial nerve avulsion in a pediatric patient, treated by combination sensory and motor median to radial nerve transfers. After traumatic avulsion of the proximal radial nerve, a 12-year-old male patient underwent end-to-end transfer of median nerve branches to flexor carpi radialis and flexor digitorum superficialis to the posterior interosseous nerve and extensor carpi radialis nerve, respectively. He underwent end-to-side sensory transfer of the superficial radial sensory to the median sensory nerve. Pronator teres to extensor carpi radialis brevis tendon transfer was simultaneously performed to power short-term wrist extension. Within months after surgery, the patient had regained 9–10/10 sensation in the hand and forearm. In the following months and years, he regained dexterity, independent fine-finger and thumb motions, and 4–5/5 strength in all extensors except the abductor pollicis longus muscle. He grew 25 cm without extremity deformity or need for secondary orthopedic procedures. In appropriate adult and pediatric patients with proximal radial nerve injuries, nerve transfers have advantages over tendon transfers, including restored independent fine finger motions, regained sensation, and reinnervation of multiple muscle groups with minimal donor sacrifice.

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Marchenko, M. M., G. P. Kopylchuk, and O. V. Ketsa. "Low doses x-ray irradiation influence on liver detoxication system in rats with transplanted guerin's carcinoma." Biomeditsinskaya Khimiya 56, no. 2 (2010): 266–73. http://dx.doi.org/10.18097/pbmc20105602266.

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The activity of detoxication enzymes in liver microsomal fraction of preliminary radiation-exposed rats was investigated. It was shown that preliminary organism exposure to radiation reduced cytochrome Р450 and glutathione-S-transferase activity in liver microsomal fraction in the latent and logarithmic phases of oncogenesis compared with the unirradiated rats with tumor.Low level of cytochrome Р450 activity can be caused by transition of microsomal cytochrome P450 in P420 inactive form.The preliminary radiation does not influence the enzyme activity of liver cytochrome P450 and glutathione-S-transferase on terminal stages of Guerin's carcinoma growth.

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Marques Filho, Ari de O. "MODELES DES TRANSFERTS RADIATIFS A L'INTERIEUR DES COUVERTS VEGETAUX LES SOLUTIONS ANALYTIQUES." Acta Amazonica 22, no. 4 (December 1992): 541–65. http://dx.doi.org/10.1590/1809-43921992224565.

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Cette étude décrit la modélisation mathématique des transferts radiatifs en milieu végétal, en focalisant l'attention sur le régime du rayonnement solaire au sein des couverts végétaux homogènes. Le rayonnement solaire est traité en quatre composantes principales: rayonnement primaire et complémentaire, chacune de ces parties étant constituée des composantes directe et diffuse. On a présenté, dans un contexte assez général, les équations différentielles ou les systèmes d'équations différentielles qui gouvernent les différents processus de interaction rayonnement-végétation, et des solutions analytiques sont proposées pour les différentes composantes.

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Nayak, N. Govinda, Gerald Pinto, and K. Siddappa. "Incoherent scattering of 59.54keV γ-rays at small momentum transfers." Radiation Physics and Chemistry 60, no. 6 (March 2001): 555–64. http://dx.doi.org/10.1016/s0969-806x(00)00386-8.

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Haapala, Amanda F., and Kathleen C. Howell. "A Framework for Constructing Transfers Linking Periodic Libration Point Orbits in the Spatial Circular Restricted Three-Body Problem." International Journal of Bifurcation and Chaos 26, no. 05 (May 2016): 1630013. http://dx.doi.org/10.1142/s0218127416300135.

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The Earth–Moon libration points are of interest for future missions and have been proposed for both storage of propellant and supplies for lunar missions and as locations to establish space-based facilities for human missions. Thus, further development of an available transport network in the vicinity of the Moon is valuable. In this investigation, a methodology to search for transfers between periodic lunar libration point orbits is developed, and a catalog of these transfers is established, assuming the dynamics associated with the Earth–Moon circular restricted three-body problem. Maneuver-free transfers, i.e. heteroclinic and homoclinic connections, are considered, as well as transfers that require relatively small levels of [Formula: see text]. Considering the evolution of Earth–Moon transfers as the mass parameter is reduced, a relationship emerges between the available transfers in the Earth–Moon system and maneuver-free transfers that exist within the Hill three-body problem. The correlation between transfers in these systems is examined and offers insight into the existence of solutions within the catalog. To demonstrate the persistence of the catalog transfers in a higher-fidelity model, several solutions are transitioned to a Sun–Earth–Moon ephemeris model with the inclusion of solar radiation pressure and lunar gravity harmonics. The defining characteristics are preserved in the high-fidelity model, validating both the techniques employed for this investigation and the solutions computed within the catalog.

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Boyer, T. D., D. A. Vessey, and E. Kempner. "Radiation inactivation of microsomal glutathione S-transferase." Journal of Biological Chemistry 261, no. 36 (December 1986): 16963–68. http://dx.doi.org/10.1016/s0021-9258(19)75985-7.

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31

BERTELLI, J. A. "Brachialis Muscle Transfer to the Forearm Muscles in Obstetric Brachial Plexus Palsy." Journal of Hand Surgery 31, no. 3 (June 2006): 261–65. http://dx.doi.org/10.1016/j.jhsb.2005.11.001.

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Tendon transfers are frequently needed to improve hand function in obstetric brachial plexus injuries. The reconstruction cannot always be achieved using local donor transfers in the forearm as these are not always available. In such cases, we propose the use of the brachialis muscle as a useful donor for transfer. Five adolescents with obstetric brachial plexus palsy were operated on to reconstruct wrist extension and/or pronation using the brachialis muscle transfer to the pronator teres ( n = 1) extensor carpi radialis brevis ( n = 1) and extensor carpi radialis longus ( n = 3). Twelve months after surgery, average active motion recovery was 20° for wrist extension and 14° for pronation. Active and passive range of motion was similar.

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32

Fridén, J., T. F. Tirrell, S. Bhola, and R. L. Lieber. "The mechanical strength of side-to-side tendon repair with mismatched tendon size and shape." Journal of Hand Surgery (European Volume) 40, no. 3 (January 10, 2014): 239–45. http://dx.doi.org/10.1177/1753193413517327.

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Tendon transfers frequently require coaptation of two mismatched tendons. In this cadaver study, ultimate load, stiffness, and Young’s modulus were measured in tendon-to-tendon attachments with mismatched donor and recipient tendons, using pronator teres (PT) to extensor carpi radialis brevis (ECRB) and flexor carpi ulnaris (FCU) to extensor digitorum communis (EDC). FCU-to-EDC attachments failed at higher loads than PT-to-ECRB attachments, but they had similar modulus and stiffness values. Ultimate tensile strength of the tendon attachments exceeded the maximum predicted contraction force of any of the transferred muscles, with safety factors of four-fold for the FCU-to-EDC and two-fold for the PT-to-ECRB transfers. This implies that size and shape mismatches should not be contraindications to tendon attachment in transfers. The strength safety factors suggest that postoperative immobilization of these transfers is unnecessary.

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33

Kastendeuch, P. P., and G. Najjar. "Simulation and validation of radiative transfers in urbanised areas." Solar Energy 83, no. 3 (March 2009): 333–41. http://dx.doi.org/10.1016/j.solener.2008.08.006.

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34

Haag, Jérémie, Jonathan Martens, Bernard Dussoubs, Alain Jardy, and Jean-Pierre Bellot. "Analysis of the Thermal Transfers in a VASM Crucible: Electron Beam Melting Experiment and Numerical Simulation." Metals 10, no. 9 (August 25, 2020): 1152. http://dx.doi.org/10.3390/met10091152.

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A description of the Vacuum Arc Skull Melting (VASM) process is presented showing its particularly complex features because of the mixing of porous raw materials with the dense remelted metal as well as the very high temperature and the highly transient nature of the process. This paper presents a 3D transient mathematical modelling of the heat transport with the aim of bringing a better understanding of the thermal behavior of the material into the crucible during a melting cycle. The model takes into account the heat input provided by the incoming metal thanks to an adaptive meshing, as well as the latent heat of solidification and the radiative heat transfers. An experimental validation of the model is presented where an electron beam heating source mimics the heat effect of the arc thanks to an excellent guidance of the beam over the melt surface. A comparison between the measured and calculated temperatures of a steel load is reported and reveals a satisfactory agreement. With very few adjustments, concerning mainly heat radiation at the top surface of metal into the crucible, the numerical model appears to be an efficient numerical tool to simulate the VASM process at the industrial scale.

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35

Qu, Zhipeng, Armel Oumbe, Philippe Blanc, Bella Espinar, Gerhard Gesell, Benoît Gschwind, Lars Klüser, et al. "Fast radiative transfer parameterisation for assessing the surface solar irradiance: The Heliosat‑4 method." Meteorologische Zeitschrift 26, no. 1 (February 13, 2017): 33–57. http://dx.doi.org/10.1127/metz/2016/0781.

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36

De Leo, Alfredo, Graziano Cerri, Paola Russo, and Valter Mariani Primiani. "Optimization of the Measurement Technique for Emissions in Reverberation Chamber Using the Equivalence Principle." Applied Sciences 11, no. 16 (August 21, 2021): 7696. http://dx.doi.org/10.3390/app11167696.

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This paper presents an optimization of a method to reconstruct the radiated emissions of an equipment under test by the measurement of the electric field samples collected on the walls of a reverberation chamber. This means that only the orthogonal component of the electric field is necessary to obtain the radiative behavior of the device in free space conditions. The use of the equivalence principle allows one to reduce the number of equivalent sources used to reconstruct the radiation of the device. In fact, in the previous version of the method, the sources are placed into the entirety of working volume of the reverberation chamber. In the current version of the method, only the surface surrounding the equipment under test is discretized. The analytical implementation of the method is proposed for a particular stirring action: the multiple monopole source stirring technique. This technique is based on an array of monopoles placed onto the walls of the cavity, and therefore no further hardware is needed for the reconstruction of the radiated emissions. The method is experimentally validated in a real scenario.

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37

Mulet, J. P., K. Joulain, R. Carminati, and J. J. Greffet. "Transfert radiatif entre une petite particule et un diélectrique: application au chauffage local." Journal de Physique IV (Proceedings) 12, no. 5 (June 2002): 291–92. http://dx.doi.org/10.1051/jp4:20020166.

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38

Murthy, M. V. Ramana, K. Rama Rao, and S. Hari Singh Naik. "Thermal radiation effect on an unsteady MHD natural convection Couette flow with Heat and mass transfer." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 12, no. 8 (February 21, 2014): 3786–802. http://dx.doi.org/10.24297/ijct.v12i8.2996.

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The numerical solution of natural convection in unsteady hydromagneticCouette flow of a viscous incompressible electrically conducting fluid between two vertical parallel plates in the presence of thermal radiation is obtained here. The fluid is considered to be a gray, absorbing â€“ emitting but non â€“ scattering medium and the Rosseland approximation is used to describe the radiative heat flux in the energy equation. The dimensionless governing coupled, non â€“ linear boundary layer partial differential equations are solved by an efficient, accurate, and extensively validated and unconditionally stable finite difference scheme of the Crank â€“ Nicolson method. Computations are performed for a wide range of the governing flow parameters, viz., the thermal Grashof number, SolutalGrashof number, Magnetic field parameter (Hartmann number), Prandtl number, Thermal radiation parameter and Schmidt number. The effects of these flow parameters on the velocity and temperatureare shown graphically. Finally, the effects of various parameters on the on the skin â€“ friction coefficient and Rate of heat and mass transferat the wall are prepared with various values of the parameters.These findings are in quantitative agreement with earlier reported studies.

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Audaa Jehhef, Kadhum, Mohamed Abedle Sattar Khdair, and Kareem Jabbar Thajeel. "Numerical Modeling of Thermal Radiation Heat Transfers in Agricultural Greenhouse." IOP Conference Series: Materials Science and Engineering 745 (March 21, 2020): 012072. http://dx.doi.org/10.1088/1757-899x/745/1/012072.

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40

El Moutaouakil, Lahcen, Zaki Zrikem, and Abdelhalim Abdelbaki. "Interaction of surface radiation with natural convection in tall vertical cavities heated by a linear heat flux." International Journal of Numerical Methods for Heat & Fluid Flow 26, no. 6 (August 1, 2016): 1975–96. http://dx.doi.org/10.1108/hff-12-2014-0378.

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Purpose – A detailed numerical study is conducted on the effect of surface radiation on laminar natural convection in a tall vertical cavity filled with air. The cavity is heated and cooled, through its two vertical walls, by a linear or uniform heat flux q(y) and by a constant cold temperature, respectively. The horizontal walls are considered adiabatic. The paper aims to discuss these issues. Design/methodology/approach – The radiosity method is employed to calculate the net radiative heat exchanges between elementary surfaces, while the finite volume method is implemented to resolve the governing equations of the fluid flow. Findings – For each heat flux q(y) (ascending, descending or uniform), the effect of the emissivity ε (0ε1) on the local, average and maximum temperatures of the heated wall is determined as a function of the average Rayleigh number Ram (103Ram 6×104) and the cavity aspect ratio A (10A80). The effect of the coupling on the flow structures, convective and radiative heat transfers is also presented and analyzed. Overall, it is shown that surface radiation significantly reduces the local and average temperatures of the heated wall and therefore reduces the convective heat transfer between the active walls. Practical implications – The studied configuration is of practical interest in several areas where overheating must be avoided. For this purpose, a simple design tool is developed to estimate the mean and the maximum temperatures of the hot wall in different operating conditions (Ram, A et ε). Originality/value – The originality lies in the study of the interaction between surface radiation and natural convection in tall cavities submitted to a non-uniform heat flux and a constant cold temperature on the active walls. Also, the development of an original simplified calculation procedure for the hot wall temperatures.

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41

Rozanec, Natalie, Edwin Chan, Shaziya Malam, and James Loudon. "The automated patient discharge summary: improving communication at transfers of care after completion of radiotherapy." Journal of Radiotherapy in Practice 16, no. 3 (May 4, 2017): 265–71. http://dx.doi.org/10.1017/s1460396917000188.

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AbstractAimTo develop an auto-generated patient discharge summary for all patients being treated in the Radiation Therapy Department.Materials and methodsA patient discharge summary was developed using auto-generated data for all patients being treated in the Radiation Therapy Department. This ensures information relevant to the care of the patient is communicated effectively during transitions of care following radiation treatment, and provides a record of the treatment site(s), dose delivered, start/completion dates and contact information for Radiation Oncologists. The eScribe feature in MosaiQTM is utilised to auto-generate the patient discharge summary in less than one minute, and then printed and given to patients on the last day of treatment. This was piloted with palliative radiotherapy patients (n=22), who also completed a telephone survey.ResultsResults revealed patients had passed this document onto other healthcare providers and appreciated having a record of their treatments. Feedback was obtained from radiation therapy staff and the Patient and Family Advisory Committee. Subsequently, the language of the patient discharge summary was simplified and a disclaimer was added, indicating the document is not a complete radiation therapy treatment record. This initiative was then rolled out to all radiotherapy patients.FindingsOverall, the patient discharge summary allows for a quick, automated and standardised approach for transfer of information during care transitions without significant impact to the Radiation Therapy Departmental workflow.

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42

Darvishi, M. T., F. Kani, and R. S. R. Gorla. "Natural convection and radiation in a radial porous fin with variable thermal conductivity." International Journal of Applied Mechanics and Engineering 19, no. 1 (February 1, 2014): 27–37. http://dx.doi.org/10.2478/ijame-2014-0003.

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Abstract In this study, the effects of radiation and convection heat transfer in a radial porous fin are considered. The geometry considered is that of a rectangular profile fin. The porous fin allows the flow to infiltrate through it and solid-fluid interaction takes place. This study is performed using Darcy’s model to formulate the heat transfer equation. The thermal conductivity is assumed to be a function of temperature. The effects of the natural convection parameter Nc , radiation parameter Nr and thermal conductivity parameter m on the dimensionless temperature distribution and heat transfer rate are discussed. The results suggest that the radiation transfers more heat than a similar model without radiation

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43

Ben-Abdallah, Philippe, Mohamed Sakami, Vital Le Dez, Jean-Bernard Saulnier, and André Charette. "Solutions analytiques planes de l'équation de transfert radiatif en milieu semi-transparent hétérogène axisymétrique." Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics-Physics-Astronomy 328, no. 1 (January 2000): 47–54. http://dx.doi.org/10.1016/s1287-4620(00)88415-x.

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44

Dubroca, Bruno, and Jean-Luc Feugeas. "Etude théorique et numérique d'une hiérarchie de modèles aux moments pour le transfert radiatif." Comptes Rendus de l'Académie des Sciences - Series I - Mathematics 329, no. 10 (November 1999): 915–20. http://dx.doi.org/10.1016/s0764-4442(00)87499-6.

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45

LO, I. K. Y., R. TURNER, S. CONNOLLY, G. DELANEY, and J. H. ROTH. "The Outcome of Tendon Transfers for C6-Spared Quadriplegics." Journal of Hand Surgery 23, no. 2 (April 1998): 156–61. http://dx.doi.org/10.1016/s0266-7681(98)80164-2.

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The purpose of this study was to review retrospectively and evaluate a uniform group of C6-spared quadriplegics who had similar surgical procedures. Eight patients undergoing 12 procedures were reviewed at an average of 3.8 years follow-up. There were three bilateral procedures. All patients had extensor carpi radialis longus to flexor digitorum profundus and brachioradialis to flexor pollicis longus transfers to improve grip strength and key pinch. All patients reported subjective improvements in quality of life, activities of daily living and patient-centred goals. There were six excellent and two good results. Objective improvements included mild improvements in key pinch and grip strength.

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46

Arulanantham, M., and N. D. Kaushika. "Coupled radiative and conductive thermal transfers across transparent honeycomb insulation materials." Applied Thermal Engineering 16, no. 3 (March 1996): 209–17. http://dx.doi.org/10.1016/1359-4311(95)00070-4.

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47

Park, Sinmyong, SungHwan Sohn, Hyun-Wook Moon, Dong-Gil Yoo, Yeon-Duk Kang, and Yisok Oh. "Simple Microwave Scattering Model for Agricultural Areas Using Sensitivity Examinations of Input Parameters of the 1st-Order Radiative Transfer Model." Journal of Korean Institute of Electromagnetic Engineering and Science 31, no. 4 (April 2020): 358–65. http://dx.doi.org/10.5515/kjkiees.2020.31.4.358.

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48

Virchenko, Yu P. "Energy flux of electromagnetic field in stochastic model of radiative heat transfer in dielectric solid medium." Functional materials 23, no. 4 (March 24, 2017): 106–16. http://dx.doi.org/10.15407/fm24.01.106.

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49

Yee, San San, S. Saitoh, and K. Kamiuto. "Combined forced-convective and radiative heat transfer in cylindrical packed beds with constant wall heat flux." Proceedings of the Thermal Engineering Conference 2004 (2004): 67–68. http://dx.doi.org/10.1299/jsmeted.2004.67.

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50

Chatain, S., and C. Gonella. "Transferts conductifs et radiatifs dans les matériaux du bâtiment : état de l’art et progrès récents." Revue de Métallurgie 95, no. 9 (September 1998): 1149–56. http://dx.doi.org/10.1051/metal/199895091149.

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