Results 71 to 80 of about 50,809 (304)
Ultrahigh Conductive MXene Films for Broadband Electromagnetic Interference Shielding
Advanced Materials, EarlyView.A new series of nitrogen‐substituted MXene films, spanning the full composition range, achieves record‐high conductivity (35 000 S cm⁻¹) and outstanding electromagnetic interference (EMI) shielding across X, Ka, and W bands, even in ultrathin layers.
Ju‐Hyoung Han +14 more
wiley +1 more source
Negative Refraction and Left-handed electromagnetism in Microwave Photonic Crystals
, 2004 We demonstrate negative refraction of microwaves in metallic photonic crystals. The spectral response of the photonic crystal, which manifests both positive and negative refraction, is in complete agreement with band-structure calculations and numerical ...
E. Cubukcu +9 more
core +1 more source
Unperceivable Designs of Wearable Electronics
Advanced Materials, EarlyView.Unperceivable wearable technologies seamlessly integrate into everyone's daily life, for healthcare and Internet‐of‐Things applications. By remaining completely unnoticed both visually and tactilely, by the user and others, they ensure medical privacy and allow natural social interactions.
Yijun Liu +2 more
wiley +1 more source
, 1998 An analogy between electromagnetism and acoustics is presented in 2D. The propagation of sound in presence of absorbing material is modeled using an open boundary microwave package.
Furstoss, M. +2 more
core +2 more sources
Multi‐Scale Modeling of a 3D Soft Magnetoelectric Patch for Wireless Nerve Stimulation
Advanced Materials Interfaces, EarlyView.Core‐shell, magnetoelectric nanoparticles (MENPs) can serve as wireless electric nano‐sources, thanks to their ability to generate high levels of electricity, when stimulated by a human‐safe external magnetic field. By combining MENPs with soft, biocompatible polymeric matrices and optimizing its composite configuration and electrical behavior via ...
Giulia Suarato +6 more
wiley +1 more source
Advanced Materials Interfaces, EarlyView.This article provides a comprehensive overview of electroless plating, covering its basic mechanisms, bath composition, operating parameters, and metal layer characterization. It also addresses recent advancements, current limitations, and potential improvements, as well as the technology's applications in various industries.
Na Kyoung Kim +4 more
wiley +1 more source
Permeabilities of metamaterials [PDF]
arXiv, 2010 Scattering of electromagnetic (EM) waves by many small particles, embedded in a given medium, is studied. Physical properties of the particles are described by their boundary impedances. The limiting equation is obtained for the effective EM field in the limiting medium, in the limit $a\to 0$, where $a$ is the characteristic size of a particle and the ...
arxiv
Electromagnetic tunneling through a single-negative slab paired with a double-positive bi-layer [PDF]
, 2010 We show that resonant tunneling of electromagnetic fields can occur through a three-layer structure composed of a single-negative (i.e., either negative-permittivity or negative-permeability) slab paired with bi-layer made of double-positive (i.e., positive permittivity and permeability) media. In particular, one of the two double-positive media can be
arxiv +1 more source
From Whitney Forms to Metamaterials: a Rigorous Homogenization Theory [PDF]
, 2010 A rigorous homogenization theory of metamaterials -- artificial periodic structures judiciously designed to control the propagation of electromagnetic waves -- is developed. All coarse-grained fields are unambiguously defined and effective parameters are
Tsukerman, Igor
core
Carbonization Tuned Core‐Shell Fe3O4@C Nanostructures with Enhanced Electromagnetic Wave Absorption
Advanced Materials Interfaces, EarlyView.The core‐shell structured Fe3O4@C composites are prepared by employing an in situ polymerization and carbonization treatment method. The effect of carbonization temperature on electromagnetic wave absorption of H‐FO@C composites is symmetrically analyzed, and the impedance matching and attenuation ability are improved significantly by controlling ...
Jiang Guo +12 more
wiley +1 more source