Results 21 to 30 of about 565,635 (243)
Dipole‐slot‐dipole metasurfaces [PDF]
IET Microwaves, Antennas & Propagation, 2016 A complementary frequency selective surface (CFSS) can be formed on the basis of Babinet's principle. It consists of an array of slots separated from an array of dipoles by a thin dielectric substrate. This study shows that by adding an extra layer of dipoles to a CFSS capacitance can be added to the structure, which leads to a decrease in its resonant
Bukhari, Syed Sheheryar +3 more
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Nature Astronomy, 2017 In the standard (LCDM) model of cosmology the universe has emerged out of an early homogeneous and isotropic phase. Structure formation is associated with the growth of density irregularities and peculiar velocities. Our Local Group is moving with respect to the cosmic microwave background (CMB) with a velocity 631+/-20 km s-1 and participates in a ...
Yehuda Hoffman +3 more
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Monthly Notices of the Royal Astronomical Society, 2012 We perform observational tests of statistical isotropy using data from large-scale structure surveys spanning a wide range of wavelengths. Using data from 2MASS, 2MRS, and NVSS galaxies, and BATSE gamma-ray bursts, we constrain the amplitude and direction of dipolar modulations in the number count of sources projected along the line of sight.
Gibelyou, Cameron, Huterer, Dragan
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Splitting of the dipole and spin-dipole resonances [PDF]
Physical Review C, 2001 Cross sections for the 90,92,94Zr(p,n) reactions were measured at energies of 79.2 and 119.4 MeV. A phenomenological model was developed to describe the variation with bombarding energy of the position of the L=1 peak observed in these and other (p,n) reactions.
E. Sugarbaker +12 more
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Intermolecular Interactions: Dipole–Dipole, Dipole–Induced Dipole, and London Dispersion Forces [PDF]
Journal of Chemical Education, 2009 This Mathcad document introduces students to simple potential functions, which allows them to compare and contrast various intermolecular interactions. In particular, dipole–dipole interactions, dipole–induced dipole interactions, and London dispersion interactions are explored.
Thomas S. Kuntzleman, Masayuki Shibata
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Dipole-Dipole Frequency Shifts in Multilevel Atoms [PDF]
Physical Review Letters, 2021 18 pages (6 main text, 12 supplemental material), 10 ...
Ross B. Hutson +7 more
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How Do Surface Polar Molecules Contribute to High Open‐Circuit Voltage in Perovskite Solar Cells?
Advanced Science, 2023 To date, the improvement of open‐circuit voltage (VOC) offers a breakthrough for the performance of perovskite solar cells (PSCs) toward their theoretical limit. Surface modification through organic ammonium halide salts (e.g., phenethylammonium ions PEA+
Yinyi Ma +8 more
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Classical and Quantum Gravity, 2021 Abstract We investigate a previously constructed stationary solution of the vacuum Einstein equations, which represents a system of two non-extreme black holes with equal masses and opposite NUT charges, connected by a Misner string with tension.
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Dipole–Dipole Interactions in Microtubules [PDF]
Journal of Biological Physics, 2005 Dimers in microtubules possess a dipole moment with components along three axes. The interaction energy among all dipole components in a microtubule was calculated for an un-deformed and an elliptically deformed microtubule in a "dry" condition. The interaction energy was found to increase with deformation.
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Fully Planar Dual-Polarized Broadband Antenna for 3G, 4G and Sub 6-GHz 5G Base Stations
IEEE Access, 2020 A fully planar dual polarized radiating element with internal embedded coupled dipoles is presented in this paper. The inclusion of these elements allows achieving three different goals: firstly, an extension of the bandwidth towards lower frequencies ...
Sergio Martin-Anton +1 more
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