Results 81 to 90 of about 16,289,742 (329)

Responses of Polystyrene/MWCNT Nanocomposites to Electromagnetic Waves and the Effect of Nanotubes Dispersion [PDF]

علوم و تکنولوژی پلیمر, 2014
Electromagnetic compatibility (EMC) and electromagnetic interference (EMI) have emerged as key issues with respect to commercial and military purposes in association with electromagnetic waves.
Ehsan Aghajari, Sadegh Morady, Mohammad Hossein Navid Famili Navid Famili, S. Esmaeil Zakiyan, Atefeh Golbang   +4 more
doaj   +1 more source

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

Advanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li, Jun Xu, Dezhong Xu, Zhaohui Zhang, Jiyi Li, Daxian Cao, Kefu Chen, Mizi Fan   +7 more
wiley   +1 more source

Preliminary Investigation on Electromagnetic Characteristics of Reinforced Cement Paste Coaxial Member During Bending and Shear Failure

工程科学与技术, 2019
The damage evolution of concrete is a process during which internal cracks emerge and propagate, and correspondingly the electromagnetic properties of concrete is changed according to the degree of damage development.
Bixiong LI, Kan LIU, Site MO, Tian TANG
doaj  

Electromagnetic Properties of Unstable Particles [PDF]

Il Nuovo Cimento, 1962
Charge and current distributions are defined for unstable particles in no-recoil theories. They are in general complex, and oscillate with amplitudes increasing exponentially at large distances. Moments can be defined nevertheless. As with stable particles, electric dipole moments are necessarily zero if time reversibility holds.
openaire   +2 more sources

Rapid Microwave Plasma Engineering of HfO2/C@C Core‐Shell Fibrous Membrane Toward Flexible High‐Performance Electromagnetic Wave Absorption

Advanced Functional Materials, EarlyView.
Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding, Limeng Song, Wei Li, Jiangtao Hao, Xuewen Jiang, Mengru Li, Xinglai Yuan, Gang Wang, Yanqiu Zhu, Mi Tian, Hailong Wang, Hongxia Li, Biao Zhao, Rui Zhang, Bingbing Fan   +14 more
wiley   +1 more source

Identifying smart conducting materials for Wi-Fi electromagnetic interference shielding [PDF]

, 2012
The objective of this paper is to identify a suitable coating material in order to tune the microwave radiation and produce absorption losses for Wi-Fi devices.
Zonghan Xie, Whamid Al-Shabib, Al-Shabib, Wham, Daryoush Habibi, Habibi, Daryoush, Xie, Zonghan, Xiaoli Zhao, Xie, Z., Zhao, Xiaoli, Habibi, D., Al-Shabib, W., Zhao, X.   +11 more
core   +1 more source

Multifunctional design of radar absorbing structures based on material and structure synergistic effect

Nano Research
With the increasing seriousness of electromagnetic pollution in civil applications and national defense, current radar absorbing structures (RASs) with narrow absorption performance and high density are inadequate to meet the demands for excellent ...
Yuexuan Li, Yiwei Han, Leilei Yan, Xitao Zheng, Pei Liu, Panbo Liu   +5 more
doaj   +1 more source

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

Advanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto, Javier Zamudio‐García, Abraham Sánchez‐Caballero, David Marrero‐López, Vincenzo Esposito   +4 more
wiley   +1 more source

Síntese, caracterização e avaliação da utilização de aditivo condutor nanoestruturado à base de montmorilonita/polipirrol em matriz de poliuretano termoplástico para aplicação em blindagem eletromagnética [PDF]

, 2015
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2015.Polímeros intrinsecamente condutores (PICs), nomeadamente o polipirrol (PPy) e polianilina (
Ramôa, Sílvia Daniela Araújo da Silva
core  

Effect of Load Partitioning Under Different Pressing Temperature Conditions During 2P1A Compaction on the Densification Behavior and Electromagnetic Properties of Fe–5.0 wt.%Si SMC Core

Metals
Soft magnetic composites (SMCs) are attracting increasing attention for electromagnetic applications owing to their three-dimensional shape flexibility and reduced eddy current loss. In this study, the 2-Pressing 1-Annealing (2P1A) process was applied to
Minseop Sim, Seonbong Lee
doaj   +1 more source