Results 11 to 20 of about 238,679 (287)
Noncommutative Derivation of the Planck's Radiation Law
Revista Brasileira de Ensino de Física, 2023 The Planck's radiation law for the black body radiation spectrum was capable to explain the experimentally-measured black body spectrum. In order to get this result, Planck proposed his radiation law in a two-fold way: 1) by an ad hoc modification of the
Marco Antonio De Andrade +2 more
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Two Classes of Solutions of Null Electromagnetic Radiation [PDF]
Progress of Theoretical Physics, 1972 2) con ditions so that the null field under investigation may be said to be generated by matter free electromagnetic radiation. The line element in both cases has been chosen to be such that one of the coordinate axes (say, x 1 axis) is along the null direction or in other words gn = 0.
De, U. K., Banerjee, A.
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IEEE Access, 2021 A wideband filtering dielectric patch (DP) antenna with reconfigurable bandwidth is investigated in this paper. Adjusting the aspect ratio of the DP resonator can make the high-order TE121 mode close to the dominate TM101 mode to facilitate the design of
Xiao-Ke Zhang +4 more
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Extreme Electron Acceleration with Fixed Radiation Energy
Entropy, 2022 We examine the extreme situation of radiation from an electron that is asymptotically accelerated to the speed of light, resulting in finite emission energy.
Michael R. R. Good +2 more
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Removing broadside null of symmetric long‐slot antennas by using a coating layer
IET Microwaves, Antennas & Propagation, 2021 This study presents a new concept in the design of symmetric long‐slot leaky‐wave antennas. Theoretically, a radiation null in the broadside direction of these antennas exists.
Mohaddeseh Shahrbandian +1 more
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Mechanism of the X-ray and Soft Gamma-ray Emissions from the High Magnetic Field Pulsar: PSR B1509-58 [PDF]
Journal of Astronomy and Space Sciences, 2013 We use the outer gap model to explain the spectrum and the energy dependent light curves of the X-ray and soft γ-ray radiations of the spin-down powered pulsar PSR B1509-58.
Yu Wang, Jumpei Takata, Kwong Sang Cheng
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Design of a Cylindrical Crossed Dipole Phased Array Antenna for Weather Surveillance Radars
IEEE Open Journal of Antennas and Propagation, 2021 We present a cylindrical dual-polarization phased array antenna for weather surveillance radars that features high isolation, matched copolar beams, low sidelobe levels, and adaptive null steering.
Mohammad-Hossein Golbon-Haghighi +3 more
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Spherically symmetric static solution for colliding null dust [PDF]
, 1998 The Einstein equations are integrated in the presence of two (incoming and outgoing) streams of null dust, under the assumptions of spherical symmetry and staticity.
A. Miković +23 more
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Physical null zones and radiation representation [PDF]
Nuclear Physics B, 1983 Abstract General conditions for reconstructing physical null radiation zones in single photon tree amplitudes are given. The systematic analysis has been carried out using invariant quantities. For arbitrary values of masses and charges these zones are always smaller than in the massless and equal charges case. As an application the radiative W boson
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Substrate Integrated Waveguide Filtenna With Two Controllable Radiation Nulls [PDF]
IEEE Access, 2020 In this paper, a novel substrate integrated waveguide (SIW) filtenna with two controllable radiation nulls is proposed, which has the advantage of good radiation characteristics. Radiation nulls are generated by electric and magnetic mixed coupling structure and fundamental mode, respectively.
Chuanyun Wang +4 more
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