Results 41 to 50 of about 2,887,363 (295)
Angular-Independent Structural Colors of Clay Dispersions
, 2022 Clay mineral nanosheet colloids were found to show angular-independent structural colors after desalting. Naked-eye observation and UV–visible reflectance spectra showed that the color is tuned by varying the average nanosheet size and nanosheet ...
Nobuyoshi Miyamoto (1530817) +3 more
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Multifunctional Single Layer Metasurface Based on Hexagonal Split Ring Resonator
IEEE Access, 2020 We present a single-layer metasurface, which performs both cross and circular polarization conversion at multiple frequency bands. The unit cell of the proposed metasurface consists of periodic array of a uniquely designed hexagonal split ring resonator (
Muhammad Salman Salman +3 more
doaj +1 more source
Stratosphere-troposphere exchange: An angular momentum perspective [PDF]
, 2007 The exchange of axial angular momentum (AM) between stratosphere and troposphere forms an important part of stratosphere–troposphere exchange (STE). Data are used to quantify the related fluxes through an idealized tropopause for specific flux events ...
Egger, Joseph +3 more
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On the stability of the complex angular-momentum continuation
Nuclear Physics B, 1971 Abstract Stability estimates for the complex angular-momentum continuation are proved with the addition of a prescribed exponential bound or a prescribed uniform bound. Some numerical examples are given in order to show that the stability is quantitavely still extremely poor.
K. Miller, G.A. Viano
openaire +1 more source
Jaumann-like Rasorber Offering Angular Stability with Wideband Absorption and Low Insertion Loss [PDF]
, 2022 In this letter, a Jaumann-like rasorber is examined, which offers wideband absorption, angular stability, and polarization insensitivity. The structure is defined by three layers with two resistive layers placed on top of a lossless layer.
Anagnostou, Dimitris E.; id_orcid +5 more
core +1 more source
Attitude Control for a Rigid-Body With Dynamic Disturbance Based on Angular Velocity Observer
IEEE Access, 2022 In this paper, we propose a geometric control law for attitude robust control problem of a rigid body system without angular velocity measurement. We suppose there is a disturbance related to angular velocity and attitude in the system. Under appropriate
Jinyu Zhao, Fangfei Li
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Applied SciencesThis paper presents a novel ultrathin frequency selective surface (FSS) bandpass filter with an extraordinary wideband tailored for operating within the S-C bands. The filter structure entails a double-layer FSS structure with mutually perpendicular unit
Francesca Pascarella +2 more
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Applied SciencesIn this article, a miniaturized frequency-selective surface (FSS)-based electromagnetic shield is investigated for EMI mitigation in the X-band. The FSS comprises a convoluted conducting loop designed over an FR-4 substrate.
Muhammad Idrees +3 more
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Broadband Transparent Absorber Based on Indium Tin Oxide-Polyethylene Terephthalate Film
IEEE Access, 2019 In this paper, a broadband transparent microwave absorber with a fractional bandwidth of 118.1% was designed. In the proposed absorber, a gear-shaped unit cell consisting of optically transparent indium tin oxide-polyethylene terephthalate films ...
Lin Zhang +4 more
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Shock and Vibration, 2022 Based on Laplace transform and Hurwitz stability criterion, the system characteristic equation and algebraic stability criterion of the two degree-of-freedom angular free vibration of dry gas seal are derived. The effects of rotational inertia, stiffness
Liming Teng +4 more
doaj +1 more source