Results 51 to 60 of about 2,208,450 (302)

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Compact and ultra-efficient broadband plasmonic terahertz field detector

open access: yesNature Communications, 2019
Most efficient terahertz detection schemes rely on complex free space optics and require high-power lasers. Here, the authors report an integrated plasmonic terahertz detector on a silicon photonics platform, with 2.5 THz bandwidth and a 65 dB dynamical ...
Yannick Salamin   +7 more
doaj   +1 more source

Bit- and Power-Loading—A Comparative Study on Maximizing the Capacity of RSOA Based Colorless DMT Transmitters

open access: yesApplied Sciences, 2017
We present a comparative study of the capacity increase brought by bit- and power-loading discrete multi-tone (DMT) modulation for low-cost colorless transmitters.
Simon Arega Gebrewold   +4 more
doaj   +1 more source

A magic electromagnetic field [PDF]

open access: yes, 2003
An electromagnetic field of simple algebraic structure is simply derived. It turns out to be the G=0 limit of the charged rotating Kerr-Newman metrics. These all have gyromagnetic ratio 2, the same as the Dirac electron. The charge and current distributions giving this high gyromagnetic ratio have charges of both signs rotating at close to the velocity
openaire   +2 more sources

On Localizing and Concentrating Electromagnetic Fields [PDF]

open access: yesSIAM Journal on Applied Mathematics, 2018
We consider field localizing and concentration of electromagnetic waves governed by the time-harmonic anisotropic Maxwell system in a bounded domain. It is shown that there always exist certain boundary inputs which can generate electromagnetic fields with energy localized/concentrated in a given subdomain while nearly vanishing in another given ...
Bastian Harrach   +2 more
openaire   +4 more sources

Materials‐Driven Additive Manufacturing for Electrical Machines: Qualification‐Oriented Design Beyond Geometric Freedom

open access: yesAdvanced Engineering Materials, EarlyView.
This perspective reframes additive manufacturing for electrical machines as a qualification‐limited materials and architecture design problem. It links process–structure–property–performance relationships to magnetic, conducting, dielectric, and thermal property windows, highlighting where AM can enable segmented magnetic circuits, permanent magnet ...
Dénes Fodor, Loránd Szabó
wiley   +1 more source

Plasmonic modulator enabling kilometer-range high-throughput sub-THz links for radio access networks

open access: yesNature Communications
Future radio access networks must accommodate growing mobile data traffic. Capacity between mobile devices and remote radio units (RRUs) must increase by using higher wireless carrier frequencies.
Boris Vukovic   +12 more
doaj   +1 more source

Low-frequency electromagnetic fields do not alter responses of inflammatory genes and proteins in human monocytes and immune cell lines [PDF]

open access: yes, 2012
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de Kleijn, S.   +8 more
core   +1 more source

Enhancement of the Through‐Thickness Electrical Conductivity of Carbon‐Fiber‐Reinforced Plastics Using Large Graphite Particles

open access: yesAdvanced Engineering Materials, EarlyView.
To enhance through‐thickness conductivity without sacrificing impregnation, large spherical graphite particles are intentionally employed in a low‐viscosity resin. Unlike finer conductive fillers, these particles remain outside the fiber bundles and accumulate in resin‐rich interlaminar regions during molding.
Keito Hosoe   +6 more
wiley   +1 more source

Gap‐Seeded Nucleation of Single Ag Nanoparticles for Filamentary Memristors

open access: yesAdvanced Electronic Materials
Filamentary Ag memristors are at the forefront of next‐generation artificial neuromorphic networks. However, their fabrication routinely involves multiple lithography steps and vacuum techniques, driving processing complexity and length.
Markus Fischer‐Butesheva   +11 more
doaj   +1 more source

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