Results 61 to 70 of about 2,245 (187)
Information &Functional Materials, EarlyView.Piezoelectric materials are reviewed as active platforms for medical ultrasound, bridging electromechanical fundamentals, transducer architectures, and biomedical applications. Material–device co‐design is emphasized as the key to high‐performance diagnosis, therapy, monitoring, wearable ultrasound, and emerging ultrasound‐responsive functions ...
Jianan Li, Qing Wan
wiley +1 more source
Hybrid deep learning for robust spectrum sensing over AWGN and fading channels
EURASIP Journal on Advances in Signal ProcessingAccurate and reliable spectrum sensing (SS) is crucial for optimal spectrum usage in cognitive radio (CR) networks under challenging low signal-to-noise ratio (SNR) and fading channel conditions. The Bi-CLNetwork, a hybrid deep learning (DL) architecture,
Sarah Yahya Salih Al-Hajm +2 more
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Design and Performance Analysis of MISO-ORM-DCSK System over Rayleigh Fading Channels
International Journal of Antennas and Propagation, 2016 A novel chaotic communication system, named Orthogonality-based Reference Modulated-Differential Chaos Shift Keying (ORM-DCSK), is proposed to enhance the performance of RM-DCSK.
Gang Zhang +3 more
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Recent advances in spin‐orbit torque and magnetization switching of transition metal oxides
InfoScience, EarlyView.This review systematically introduces recent advances in transition metal oxides spintronics, including the underlying mechanisms of spin current generation and related symmetry theory, the magnetization switching processes driven by spin currents and magnon currents, respectively, as well as their corresponding transport properties, finally presenting
Wenjing Huo +7 more
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Journal of Raman Spectroscopy, EarlyView.We report the development and use of a transmission Raman spectroscopy (TRS) system for a more accurate but nonintrusive way of authentication of API in coated HCQ tablets which otherwise is not possible using the backscattered (BS) configuration of Raman spectroscopy. The coating interference is found to be almost zero in case of the TRS and a greater
Vijay Kumar +5 more
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Ambient‐Light‐Activated Rewritable Optical Patterning in Transparent Long‐Afterglow Garnet Ceramics
Laser &Photonics Reviews, EarlyView.This work demonstrates sunlight‐activated rewritable optical information storage in transparent long‐afterglow Y3Al2Ga3O12:Ce (YAGG:Ce) garnet ceramics fabricated via solid‐state sintering with tetraethyl orthosilicate (TEOS) as a sintering aid. By integrating ambient‐light operability, reversibility, and high optical clarity in a robust ceramic host ...
Luyang Hua +11 more
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Diffraction‐Free Natural Optical Skyrmions and Their Subwavelength Confinement Around Vortices
Laser &Photonics Reviews, EarlyView.ABSTRACT Diffraction causes waves to spread out as they propagate freely. The tighter the lateral confinement, the faster the spreading. Past research on how to suppress diffraction has been based on wave engineering and has led so far to idealized waves that, in real settings, eventually diffract.
Nilo Mata‐Cervera +4 more
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Analysis of the fractional scattering contribution in the forward peak for multicomponent systems
Quarterly Journal of the Royal Meteorological Society, EarlyView.Derivation and justification of mixing rules for multicomponent systems. A novel formulation of the delta‐Eddington scaling rule. Analytical guidance for comparing radiative transfer results. Abstract The widely used δ‐Eddington approximation improves the accuracy of radiative transfer calculations by representing the fraction of scattering into the ...
Jiangnan Li, Yue Cai
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Upper Capacity Bounds of MIMO Wireless Systems Through Fading Channels
Advances in Electrical and Electronic Engineering, 2015 This paper investigates the upper capacity bounds of MIMO systems with correlation and antenna selection techniques in general fading environments. With Antenna Selection techniques, the increased hardware complexity due to multiple antennas and large ...
Rachna Mahey, Jyoteesh Malhotra
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