Results 11 to 20 of about 496,345 (292)
Applied Mechanics, 2023 The Kirchhoff analogy between the oscillation of a pendulum (in the time domain) and the static bending of an elastic beam (in the spatial domain) is applied to the stability analysis of an inverted pendulum on a vibrating foundation (the Kapitza ...
Rahul Ramachandran, Michael Nosonovsky
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Joint time and beam domain non-orthogonal multiple access
Tongxin xuebao, 2021 In order to improve the system’s ability to accommodate connected devices, a joint time and beam domain non-orthogonal multiple access (NOMA) scheme was proposed, which was suitable for millimeter wave massive multiple-input multiple-output (MIMO ...
Zhaoyang ZHANG +3 more
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Joint Deblurring and Denoising of THz Time-Domain Images
IEEE Access, 2021 Terahertz (THz) pulse/time-domain imaging attracted increased interest in recent years mostly due to its ability to extract dielectric properties of sample materials (i.e., absorption coefficient and the refraction index) from the amplitude and phase of ...
Marina Ljubenovic +3 more
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IEEE Access, 2018 We investigate non-orthogonal unicast and multicast (NOUM) transmission for massive multiple-input multiple-output systems, where only statistical channel state information of all user terminals is available at the base station.
Li You +4 more
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Electron-Beam Domain Patterning in Sr0.61Ba0.39Nb2O6 Crystals [PDF]
Coatings, 2020 The characteristics of electron-beam domain writing (EBDW) on the polar and nonpolar surfaces of the field-cooled (FC) and zero-field cooled (ZFC) Sr0.61Ba0.39Nb2O6 (SBN) crystals are presented in the range of accelerating voltage U from 10 to 25 kV.
Tatyana R. Volk +5 more
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Direct writing of ferroelectric domains on the x- and y-faces of lithium niobate using a continuous wave ultraviolet laser [PDF]
, 2011 Ferroelectric domain reversal has been achieved by scanning a tightly focused, strongly absorbed ultraviolet laser beam across the x- and y-faces of lithium niobate crystals. The domains were investigated by piezoresponse force microscopy.
Buse, K. +5 more
core +1 more source
Study on Coupled Vertical Vehicle-Bridge Dynamic Performance of Medium and Low-Speed Maglev Train
Applied Sciences, 2021 The levitation stability of maglev trains is determined by the interaction of vehicle-bridge dynamic characteristics. The state change of vehicle and track beam will affect the dynamic performance of maglev trains.
Yifeng Song +4 more
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Two-dimensional domain structures in Lithium Niobate via domain inversion with ultrafast light [PDF]
, 2016 Periodic inversion of ferroelectric domains is realized in a lithium niobate crystal by focused femtosecond near-infrared laser beam. One and two-dimensional domain patterns are fabricated.
Boes, A. +9 more
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Beam Domain Secure Transmission for Massive MIMO Communications [PDF]
IEEE Transactions on Vehicular Technology, 2018 We investigate the optimality and power allocation algorithm of beam domain transmission for single-cell massive multiple-input multiple-output (MIMO) systems with a multi-antenna passive eavesdropper. Focusing on the secure massive MIMO downlink transmission with only statistical channel state information of legitimate users and the eavesdropper at ...
Wenqian Wu +3 more
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Electron beam driven ion-acoustic solitary waves in plasmas with two kappa-distributed electrons
Scientific Reports, 2023 Formation and the basic features of arbitrary amplitude ion-acoustic solitary waves (IASWs) in a plasma consisting of warm positive ions, two $$\kappa$$ κ -distributed electrons and an electron beam are investigated by using the Sagdeev pseudopotential ...
M. M. Hatami
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