Results 51 to 60 of about 19,671,460 (302)

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

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

Automatic Germination Evaluation and Qualitative Analysis of Essential Oil of Mentha × piperita L. under the Influence of High Frequency Pulsatile Electromagnetic and Ultrasound Pulsatile Fields

Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 2015
The study illustrates the influence of high frequency pulsatile electromagnetic fields and ultrasound pulsatile fields on Mentha × piperita L. seed germination and the quality of its essential oil.
Valentin SINGUREANU, Rodica UNGUR, Ioan ONAC, Melinda Haydee KOVACS, Gelu MOLDOVAN, Victoria SINGUREANU   +5 more
doaj   +1 more source

Identification of Impact of Electromagnetic Fields at Low and High Frequency on Human Body

, 2012
The article reviews the current state of large-scale studies about the impact of electromagnetic field on natural environment. The scenario of investigations – simulation of natural conditions at the workplace, taking into consideration the influence ...
P. Sowa
core   +1 more source

Full‐Field Damage Monitoring in Architected Lattices Using In situ Electrical Impedance Tomography

Advanced Functional Materials, EarlyView.
In situ electrical impedance tomography (EIT) turns 3D‐printed, CNT‐infused architected lattices into full‐field damage‐imaging systems. Tunable Voronoi‐based geometries act as active sensing architectures, enabling conductivity maps to detect early‐stage damage and localise sequential ligament fracture before catastrophic failure.
Akash Deep, Andrea Samore, Alistair McEwan, Andrew McBride, Shanmugam Kumar   +4 more
wiley   +1 more source

Defect‐Mediated Inelastic Light Scattering by Infrared Phonons in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
Optically active defects in hexagonal boron nitride enable inelastic stimulated light scattering mediated by infrared‐active phonons, relaxing conventional Raman selection rules. Defect engineering enhances the Stokes‐conversion process and activates both TO‐ and LO‐phonon scattering channels.
Prabhdeep Singh, Bharti Garg, Maximilian Black, Masoud Taleb, Nahid Talebi   +4 more
wiley   +1 more source

Investigation of Carbon Fiber Reinforced Polymer Concrete Reinforcement Ageing Using Microwave Infrared Thermography Method

Applied Sciences
This study presents the utilization of the microwave infrared thermography (MIRT) technique to identify and analyze the defects in the carbon-fiber-reinforced polymer (CFRP) composite reinforcement of concrete specimens.
Barbara Szymanik, Sam Ang Keo, Franck Brachelet, Didier Defer   +3 more
doaj   +1 more source

Low Frequency Electromagnetic Fields: Friend or Foe?

, 2011
The issue of electromagnetic fields and their effects on human health has long been discussed within the scientific community. The lack of undisputable evidence confirming the dangers of these fields leads to great uncertainty and public concerns. On the
Ivo Cap, Jan Barabas
core   +1 more source

Managing Charge Transport and Exciton Generation for Highly Efficient, Bright, and Stable Near‐Infrared Organic Radical Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
High‐performing near‐infrared (NIR) organic light‐emitting diodes are demonstrated using an efficient and stable 800 nm‐emissive organic radical and a thermally activated delayed fluorescence (TADF) host. TADF‐assisted exciton generation combined with improved charge transport enables high external quantum efficiency (>8%), high radiance (>70,000 mW sr−
Hwan‐Hee Cho, Min‐Hsuan Chang, Yi‐Syun Chen, Tetsuro Kusamoto, Emrys W. Evans, Yuh‐Renn Wu, Richard H. Friend   +6 more
wiley   +1 more source

Investigation of the influence of dielectric material properties on a magnetically actuated MEMS-based THz metasurface

Open Engineering
This paper presents a device sensitive to dielectric material properties, based on a square shaped split-ring resonator (SRR) metasurface operating in the terahertz (THz) frequency band.
Badisa Anil Babu, Lopato Przemyslaw, Herbko Michal, Szymanik Barbara, Maciusowicz Michal, Zywica Adam Ryszard, Kovacs Andras, Mescheder Ulrich, Petit Julien   +8 more
doaj   +1 more source