Results 41 to 50 of about 29,372 (246)
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
Phased array optimizing characteristics in HIFU device
Archives of Acoustics, 2003 For the high intensity focused ultrasound (HIFU) phased array frequency distribution pattern size and amount of the elements may affect the performance and cost of the HIFU device.
Qi Chen, Bin Xiong, Yazu Chen
doaj
Results in PhysicsIn this work, we have theoretically investigated the second harmonic generation (SHG) coefficient in GaAs/AlxGa1-xAs elliptical quantum ring (QR), taking into account the effects of hills, inner radius, electromagnetic fields, temperature, pressure and ...
N. Benzerroug, M. Choubani
doaj +1 more source
Advanced Materials, EarlyView.2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil +14 more
wiley +1 more source
A Schur algorithm for symmetric inner functions [PDF]
, 2005 International audienceSymmetric inner rational functions naturally arise in the description of physical systems which satisfy the conservation and reciprocity laws.
Bernard Hanzon +5 more
core
On large-scale diagonalization techniques for the Anderson model of localization [PDF]
, 2006 We propose efficient preconditioning algorithms for an eigenvalue problem arising in quantum physics, namely the computation of a few interior eigenvalues and their associated eigenvectors for large-scale sparse real and symmetric indefinite matrices of ...
Bollhofer, Matthias +8 more
core +1 more source
Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection
Advanced Materials, EarlyView.Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel +7 more
wiley +1 more source
IEEE Open Journal of Industry ApplicationsThis article proposes a robust and efficient control framework for quad-active-bridge (QAB) converters based on the integration of super-twisting sliding mode control (STSMC) and zeroing neural networks (ZNNs). An outer-loop STSMC is designed to regulate
Irfan Sami +5 more
doaj +1 more source
Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration
Advanced Materials, EarlyView.A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang +7 more
wiley +1 more source
A Discrete Approach for the Inverse Singular Value Problem in Some Quadratic Group
, 2003 In this paper the solution of an inverse singular value problem is considered. First the decomposition of a real square matrix A = USigmaV is introduced, where U and V are real square matrices orthogonal with respect to a particular inner product defined
Tiziano Politi, T. Politi
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