In this paper, a compact log-periodic dipole array (LPDA) antenna is developed at 0.5-10 GHz. This LPDA structure constitutes fewer dipole elements than a conventional LPDA antenna that exhibits ...

14 4 Hwatt Wed 18th Jun 2025 They should add the Nintendo Switch and Switch 2 to the periodic table of elements given its unique, stable properties. 18 5 MathByThePixel Wed 18th Jun 2025 ...

We have synthesized a new p-type polymer, poly(9,9‘-n-dioctylfluorene-alt-biselenophene) (F8Se2), via the palladium-catalyzed Suzuki coupling reaction. The number-average molecular weight (Mn) of ...

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where E is the total energy of the system, i, j and k denote the atoms, rij is the distance between pairs adjoining atoms i and j, Vij is the bonding energy, bij is an empirical bond-order term, Vatt ...

Abstract: Heterodyne laser interferometry and its accuracy at subnanometer levels are discussed. The simplest optical nonpolarization heterodyne interferometer is tested experimentally to understand ...