Results 21 to 30 of about 840,187 (268)
Laser-Induced Morphological and Structural Changes of Cesium Lead Bromide Nanocrystals
Nanomaterials, 2022 Metal halide perovskite nanocrystals, an emerging class of materials for advanced photonic and optoelectronic applications, are mainly fabricated with colloidal chemistry routes.
Athanasia Kostopoulou +9 more
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Photoacoustic imaging reveals hidden underdrawings in paintings
Scientific Reports, 2017 A novel, non-invasive, imaging methodology, based on the photoacoustic effect, is introduced in the context of artwork diagnostics with emphasis on the uncovering of hidden features such as underdrawings or original sketch lines in paintings ...
George J. Tserevelakis +6 more
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A Pavement Piezoelectric Energy Harvester for Small Input Displacements
Micromachines, 2023 In order to collect mechanical energy from human motions on pavement without an obvious disturbance, a piezoelectric harvester for small displacement is proposed. A seesaw mechanism is utilized to transmit the pressure displacement to piezoelectric beams.
Bin Yin, Jiaming Wei, Xin Jiang, Yan Liu
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International Journal of Antennas and Propagation, 2015 Composite material is widely used in the conformal load-bearing antenna structure (CLAS), and the manufacturing flaws in the packaging process of the CLAS will lead to the degradation of its wave-transparent property.
P. Li, W. Y. Xu, L. W. Song, Y. Y. Qiu
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Sensors, 2022 A method based on an interval arithmetic is proposed to analyze uncertain factors such as the curvature radii, excitation amplitude, and excitation phase of a spherical conformal array antenna.
Guangda Ding +4 more
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Miniaturized Wideband CP Antenna Using Hybrid Embedded Metasurface Structure
IEEE Access, 2022 In this study, a hybrid embedded metasurface (MTS) structure is proposed and applied to realize a miniaturized MTS antenna. In contrast to the conventional periodic rectangular MTS, the proposed MTS structure is formed by hybrid embedded patches composed
Bin Zheng +4 more
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Electronic structure of La0.5Ca0.5MnO3 [PDF]
Solid State Communications, 1997 Electronic structure calculations on La0.5Ca0.5MnO3 are reported. Calculations were performed with the Full Potential LAPW method within the Local Density Approximation (LDA) as well as the Generalised Gradient Approximation (GGA). The ferromagnetic phase of La0.5Ca0.5MnO3 is half-metallic, which is important in the relation to the colossal ...
Boer, P.K. de +4 more
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Antireflection coated semiconductor laser amplifier for Bose-Einstein condensation experiments
AIP Advances, 2018 We present a slave laser highly suitable for the preparation and detection of 87Rb Bose-Einstein condensates (BEC). A highly anti-reflection coated laser diode serves as an optical amplifier, which requires neither active temperature stabilization nor ...
Saurabh Pandey +7 more
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Effect of Ground Plane Deformation on Electrical Performance of Air Microstrip Antennas
International Journal of Antennas and Propagation, 2020 This paper covers the variation of electrical performance of air microstrip antennas due to its ground plane deformation. A typical sinusoidal function is utilized to characterize the shape of deformation, based on which different shapes of ground plane ...
Wei Wang +4 more
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Sensors, 2023 The inverse finite element method (iFEM) is a novel method for reconstructing the full-field displacement of structures by discrete measurement strain. In practical engineering applications, the accuracy of iFEM is reduced due to the positional offset of
Jiewei Lu +3 more
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