The Experts below are selected from a list of 7641 Experts worldwide ranked by ideXlab platform
Antonio M Garciagarcia - One of the best experts on this subject based on the ideXlab platform.
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finite size corrections to the blackbody Radiation Laws
Physical Review A, 2008Co-Authors: Antonio M GarciagarciaAbstract:We investigate the Radiation of a blackbody in a cavity of finite size. For a given geometry, we use semiclassical techniques to obtain explicit expressions of the modified Planck and Stefan-Boltzmann blackbody Radiation Laws as a function of the size and shape of the cavity. We determine the range of parameters (temperature and size and shape of the cavity) for which these effects are accessible to experimental verification. Finally we discuss potential applications of our findings in the physics of the cosmic microwave background and sonoluminescence.
Qi-jun Zeng - One of the best experts on this subject based on the ideXlab platform.
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thermal Radiation Laws of a q deformed boson system in m dimensions
International Journal of Theoretical Physics, 2017Co-Authors: Qi-jun Zeng, Hao Luo, Yongsong LuoAbstract:Within the theoretical framework of multidimensional space and q bosons, we generalize our hypothesis of regarding the CMBR as the Radiation of q bosons, and investigate the thermal Radiation Laws of a q boson system in m dimensions. Utilizing the new Radiation Laws, we make a numerical calculation and the results show that these new Laws have some special features. We consider that this work may provide more insight into the theory of q bosons and the study on the CMBR.
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thermal Radiation Laws of a q deformed boson system
Chinese Journal of Physics, 2014Co-Authors: Yongsong Luo, Qi-jun ZengAbstract:Utilizing new advances in the theory of q bosons, we explore the possibility and rationality of regarding the CMBR as the Radiation of q bosons, and so the deviations from the Planck Radiation law in the CMBR may be explained to some extent. Based on this hypothesis, the thermal Radiation Laws of a q boson system are investigated and their analytical expressions are obtained. A further numerical calculation shows that the new Radiation Laws have some different features from the standard Radiation law. We consider that this work may provide insight into the theory of q bosons, and may also be useful for the further study on the CMBR.
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a revisit to the generalized Radiation Laws of a kerr nonlinear blackbody
International Journal of Theoretical Physics, 2013Co-Authors: Qi-jun Zeng, Ping QinAbstract:Based on the new development of nonextensive statistical mechanics (NSM), i.e., the so-called “optimal Lagrange multipliers” (OLM)approach, we revisit the generalized Radiation Laws of a Kerr nonlinear blackbody (KNB) and obtain the analytical expressions of generalized Planck Radiation law and Stefan-Boltzmann law. In order to illustrate the influence of the parameter q on the two generalized Radiation Laws, we make a numerical calculation of the two Laws under appropriate conditions. Besides, we restate our hypothesis to extend the theory of KNB to the whole Universe.
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Generalization of the Radiation Laws of a Kerr nonlinear blackbody
The European Physical Journal D, 2012Co-Authors: Qi-jun Zeng, Ze Cheng, Jian-hui YuanAbstract:Within the framework of nonextensive statistical mechanics (NSM), we generalize the Radiation Laws, which include the Planck Radiation law and Stefan-Boltzmann law, of a Kerr nonlinear blackbody (KNB) in the normalized form. In order to illustrate the influence of the parameter q on the two generalized Radiation Laws, we make a numerical calculation of the two Laws under appropriate conditions. Furthermore, we make an attempt to extend the theory of KNB to the whole Universe.
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modified Radiation Laws of a rectangular kerr nonlinear blackbody
Optics Communications, 2011Co-Authors: Qi-jun Zeng, Ze ChengAbstract:Abstract A Kerr nonlinear blackbody (KNB) is a new kind of blackbody in which bare photons with opposite wave vectors and helicities are bound into pairs and unpaired photons are transformed into nonpolaritons. In the present paper, we focus our investigation on the modified Radiation Laws, such as Planck and Stefan–Boltzmann Radiation Laws, of a rectangular KNB. Besides, the case of a KNB with no symmetry axes is also discussed. Finally, we make a numerical calculation of modified Radiation Laws of a cubic KNB under appropriate conditions, and we consider this work may lay the foundation for the experimental verification of the model of a KNB.
A. N. Makarov - One of the best experts on this subject based on the ideXlab platform.
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calculations of heat transfer in torch furnaces by gas volume Radiation Laws
World Journal of Engineering and Technology, 2016Co-Authors: A. N. MakarovAbstract:The results stemming from the calculation of heat transfer in torch furnaces by the Laws, relating to Radiation from solid surfaces and gas volumes are analyzed. The article presents the Laws for Radiation from gas volumes and the procedure for calculating heat transfer in torch furnaces, fire boxes, and combustion chambers, elaborated on their basis. The example of heat transfer calculation in a torch furnace is given, and it is significantly non-uniform in nature. Non-uniformity of heat flux distribution on heating surfaces is given. According to the results of calculations, a new furnace is designed to decrease the non-uniformity of ingot heating, fuel rate, and increase the furnace capacity. The calculation results of the distribution of heat fluxes on the heating surfaces are given in changing torch geometric dimensions. These results are confirmed by experimental studies.
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Regularities of heat transfer in the gas layers of a steam boiler furnace flame. Part II. Gas layer Radiation Laws and the procedure for calculating heat transfer in furnaces, fire boxes, and combustion chambers developed on the basis of these Laws
Thermal Engineering, 2014Co-Authors: A. N. MakarovAbstract:The article presents the results stemming from the scientific discovery of Laws relating to Radiation from the gas layers generated during flame combustion of fuel and when electric arc burns in electric-arc steel-melting furnaces. The procedure for calculating heat transfer in electric-arc and torch furnaces, fire-boxes, and combustion chambers elaborated on the basis of this discovery is described.
Ze Cheng - One of the best experts on this subject based on the ideXlab platform.
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Generalization of the Radiation Laws of a Kerr nonlinear blackbody
The European Physical Journal D, 2012Co-Authors: Qi-jun Zeng, Ze Cheng, Jian-hui YuanAbstract:Within the framework of nonextensive statistical mechanics (NSM), we generalize the Radiation Laws, which include the Planck Radiation law and Stefan-Boltzmann law, of a Kerr nonlinear blackbody (KNB) in the normalized form. In order to illustrate the influence of the parameter q on the two generalized Radiation Laws, we make a numerical calculation of the two Laws under appropriate conditions. Furthermore, we make an attempt to extend the theory of KNB to the whole Universe.
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modified Radiation Laws of a rectangular kerr nonlinear blackbody
Optics Communications, 2011Co-Authors: Qi-jun Zeng, Ze ChengAbstract:Abstract A Kerr nonlinear blackbody (KNB) is a new kind of blackbody in which bare photons with opposite wave vectors and helicities are bound into pairs and unpaired photons are transformed into nonpolaritons. In the present paper, we focus our investigation on the modified Radiation Laws, such as Planck and Stefan–Boltzmann Radiation Laws, of a rectangular KNB. Besides, the case of a KNB with no symmetry axes is also discussed. Finally, we make a numerical calculation of modified Radiation Laws of a cubic KNB under appropriate conditions, and we consider this work may lay the foundation for the experimental verification of the model of a KNB.
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Radiation Laws of a kerr nonlinear blackbody in a moving frame of reference
International Journal of Theoretical Physics, 2011Co-Authors: Qi-jun Zeng, Ze Cheng, Jian-hui YuanAbstract:A Kerr nonlinear blackbody (KNB) is a new kind of blackbody in which bare photons with opposite wave vectors and helicities are bound into pairs and unpaired photons are transformed into nonpolaritons. In the present paper, the Radiation of a KNB is considered from the viewpoint of an observer in arbitrary uniform motion with respect to a rest frame of reference of the Radiation. It is found that the Radiation Laws, which include the distribution of nonpolaritons and so forth, are modified due to the motion. Moreover, under a special condition, we notice that the only effect of the motion is to introduce an angle-dependent directional temperature, which replaces the rest-frame temperature of the cavity. Besides, we try to extend the model of a KNB to the whole Universe and apply the modified Radiation Laws to the question of 2.7 K cosmic microwave background Radiation (CMBR).
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finite size corrections to the Radiation Laws of a kerr nonlinear blackbody
Optics Communications, 2010Co-Authors: Qi-jun Zeng, Ze ChengAbstract:Abstract In a Kerr nonlinear blackbody (KNB), bare photons with opposite wave vectors and helicities are bound into pairs and unpaired photons are transformed into nonpolaritons. The nonpolariton system can constitute free thermal Radiation in the blackbody. The present paper investigates the Radiation of a KNB in a cavity of finite-size. For a given geometry, we obtain explicit expressions of the modified Planck and Stefan–Boltzmann blackbody Radiation Laws as a function of the temperature, size and shape of the cavity by using semiclassical techniques. Moreover, we discuss these corrections of a spherical KNB and the range of parameters (temperature and size of the cavity) in which these effects are accessible to experimental detection. Finally, we calculate the finite-size corrections (FSCs) under these conditions, and this work may lay the foundation for the experimental verification of a KNB.
Yongsong Luo - One of the best experts on this subject based on the ideXlab platform.
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thermal Radiation Laws of a q deformed boson system in m dimensions
International Journal of Theoretical Physics, 2017Co-Authors: Qi-jun Zeng, Hao Luo, Yongsong LuoAbstract:Within the theoretical framework of multidimensional space and q bosons, we generalize our hypothesis of regarding the CMBR as the Radiation of q bosons, and investigate the thermal Radiation Laws of a q boson system in m dimensions. Utilizing the new Radiation Laws, we make a numerical calculation and the results show that these new Laws have some special features. We consider that this work may provide more insight into the theory of q bosons and the study on the CMBR.
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thermal Radiation Laws of a q deformed boson system
Chinese Journal of Physics, 2014Co-Authors: Yongsong Luo, Qi-jun ZengAbstract:Utilizing new advances in the theory of q bosons, we explore the possibility and rationality of regarding the CMBR as the Radiation of q bosons, and so the deviations from the Planck Radiation law in the CMBR may be explained to some extent. Based on this hypothesis, the thermal Radiation Laws of a q boson system are investigated and their analytical expressions are obtained. A further numerical calculation shows that the new Radiation Laws have some different features from the standard Radiation law. We consider that this work may provide insight into the theory of q bosons, and may also be useful for the further study on the CMBR.
