Results 151 to 160 of about 456,102 (333)

Agile Free‐Form Signal Filtering and Routing with a Chaotic‐Cavity‐Backed Non‐Local Programmable Metasurface

Advanced Science, EarlyView.
A multi‐parameter‐tunable, all‐metallic, low‐loss, wave‐chaotic cavity enables a frequency‐insensitive (over a 7 GHz bandwidth) technique to synthesize desired transfer functions within smaller windows to high accuracy and with complete reconfigurability of shapes and center frequencies.
Fabian T. Faul, Laurent Cronier, Ali Alhulaymi, A. Douglas Stone, Philipp del Hougne   +4 more
wiley   +1 more source

Recent progress on second-order elliptic and parabolic equations in double divergence form [PDF]

arXiv
This article presents a comprehensive overview and supplement to recent developments in second-order elliptic partial differential equations formulated in double divergence form, along with an exploration of their parabolic counterparts.
arxiv  

Algorithm 541: Efficient Fortran Subprograms for the Solution of Separable Elliptic Partial Differential Equations [D3] [PDF]

, 1979
Paul N. Swarztrauber, Roland A. Sweet
openalex   +1 more source

Polarization‐Controlled Transmissive Plasmonic Color Filter Using a Dimer‐Aperture Array

Advanced Science, EarlyView.
An aluminum dimer aperture array plasmonic metasurface is proposed and fabricated to achieve efficient polarization‐color filtering with CMOS‐compatible materials. The structure's simultaneous polarization‐color filtering capability is shown using structural color generation, where color gamut coverage of 76% and extinction ratio over 20 is achieved ...
Shuhao Wu, Peter W.R. Connolly, Vincenzo Pusino, Gerald S. Buller, David R.S. Cumming   +4 more
wiley   +1 more source

Degenerate two-phase incompressible flow problems III: Perturbation analysis and numerical experiments

Electronic Journal of Differential Equations, 1999
This is the third paper of a three-part series where we develop and analyze a finite element approximation for a degenerate elliptic-parabolic partial differential system which describes the flow of two incompressible, immiscible fluids in porous media ...
Zhangxin Chen, Natalia L. Khlopina
doaj  

Aromaticity‐Dependent Memristive Switching

Advanced Electronic Materials, EarlyView.
The article describes a resistive switching mechanism based on the creation of virtual filaments. Research consists of experimental and theoretical data supporting the theory that resistance of the memristor can be modulated by a redox‐induced aromaticity change of a working material.
Ewelina Cechosz, Lulu Alluhaibi, Tomasz Mazur, Andrzej Sławek, Nanjan Pandurangan, Konrad Szaciłowski   +5 more
wiley   +1 more source

Efficient FORTRAN subprograms for the solution of elliptic partial differential equations (abstract) [PDF]

, 1975
Paul N. Swarztrauber, Roland A. Sweet
openalex   +1 more source

Sustainable Thermal Solutions: Enhancing Heat Transfer with Turbulators and Nanofluids

Advanced Energy and Sustainability Research, EarlyView.
Nanofluids, which are nanoparticle suspensions in base fluid, facilitate heat transmission due to their improved thermal conductivity. Turbulators, which are inserts into fluid flow channels, disturb the flow, increasing turbulence and hence the heat transfer rate.
Zafar Said, Aggrey Mwesigye, Lingala Syam Sundar, Arun Kumar Tiwari, Kalidasan Balasubramanian, Hafiz Muhammad Ali, Evangelos Bellos, Chaerin Gim, Mohammad Shamsuddin Ahmed, Jang‐Yeon Hwang   +9 more
wiley   +1 more source

An Omnidirectional, High Power Density Magneto–Mechano–Electric Energy Harvester Using PNN–PZT Piezoceramic Operating in Decoupling Bending Mode

Advanced Energy and Sustainability Research, EarlyView.
Decoupling bending modes in magneto–mechano–electric energy harvesters, featuring two bending modes responding to different excitations with identical resonant frequencies, enables effective harvesting stray magnetic field energy in diverse environments.
Wei Peng, Bin Wang, Jianglei Chang, Zhen Liu, Genshui Wang, Zhi Cheng, Liang Ma, Shuxiang Dong   +7 more
wiley   +1 more source

Doped Zinc Oxide‐Based Piezoelectric Devices for Energy Harvesting and Sensing

Advanced Energy and Sustainability Research, EarlyView.
This review provides a comprehensive overview of material properties, synthesis methods, and characterization techniques of doped ZnO, emphasizing the impact of doping on its structural and functional attributes. It highlights key findings, identifies knowledge gaps, and proposes future research directions to optimize doped ZnO for energy harvesting ...
Congran Jin, Junhu Zhou, Ziqian Wu, John X. J. Zhang   +3 more
wiley   +1 more source