Results 61 to 70 of about 630,441 (261)

On the Use of Benford’s Law to Assess the Quality of the Data Provided by Lightning Locating Systems

open access: yesAtmosphere, 2022
Lightning causes significant damage and casualties globally by directly striking humans and livestock, by igniting forest fires, and by inducing electrical surges in electronic infrastructure, airplanes, rockets, etc.
Ehsan Mansouri   +5 more
doaj   +1 more source

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

open access: yesAdvanced 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   +7 more
wiley   +1 more source

Improvement of SAR Accuracy by Combining Two SAR Quantification Methods for Small Animals in Reverberation Chamber Above 10 GHz

open access: yesIEEE Access, 2020
Two measurement-based methods are presented to quantify the whole-body-averaged specific absorption rate (WBA-SAR) and local SAR for small animals in a medium-size reverberation chamber (RC) for a bio-effect experiment at frequencies above 10 GHz.
Jingjing Shi   +5 more
doaj   +1 more source

Characterizations of Electromagnetic Radiated Emission from Digital Electronic Circuits in Conductive Enclosure [PDF]

open access: yes, 2011
The issue of electromagnetic compatibility compliance is crucial during the design process of digital circuit boards. This is to control the level of electromagnetic radiated emission and the products to function at satisfactory performance.
Jenu, M.Z.M.; Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor   +1 more
core  

Hydrogel‐Based 3D‐Printed Anthropomorphic Breast Phantom for Emulating Mechanical and Dielectric Properties of Mammary Tissue. Applications in Microwave Imaging

open access: yesAdvanced Functional Materials, EarlyView.
A 3D‐printable breast phantom is developed using patient‐derived MRI data and hydrogels that replicate the dielectric properties of healthy and cancerous tissues. Mechanical and dielectric characterization confirm its suitability for microwave imaging.
Carlos M. Andreu   +5 more
wiley   +1 more source

A scattered field formulation of the time-domain radial point interpolation method using radial perfectly matched layers

open access: yes, 2012
Meshless methods are a new type of numerical schemes in computational electromagnetics, combining the advantages of conformal unstructured modeling with the flexibility of a node distribution without an explicit mesh topology.
Kaufmann, T.   +3 more
core   +1 more source

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

open access: yesAdvanced 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   +4 more
wiley   +1 more source

EMI/EMC issues in switch mode power supplies (SMPS)

open access: yes, 1999
Power supplies have become the major factor in the deterioration of our electromagnetic environment. This paper aims to investigate, in general terms, the issue of electromagnetic interference (EMI) in switch mode power supplies (SMPS), including basic ...
Hellany, Ali (R8993)   +1 more
core   +1 more source

Protein‐Nanoarchitectures for Low‐Field Intracellular Electro‐Immunomodulation

open access: yesAdvanced Functional Materials, EarlyView.
DHQ‐SDH‐mediated binding of AuNPs drives the formation of interconnected, chain‐like nanoarchitectures with enhanced electrical conductivity. These conductive assemblies undergo macrophage uptake and enable low‐field electrical stimulation, promoting M1‐to‐M2 phenotypic switching with decreased iNOS and increased CD206 expression. Such protein‐mediated
Viktoriya Pakharenko   +7 more
wiley   +1 more source

Data Immunity in Near Field Radio Frequency Communication Systems—NFC as an Aspect of Electromagnetic Information Security

open access: yesApplied Sciences
The NFC and MIFARE systems (referred to as HF-band RFID) are a special case of Radio Frequency Identification (RFID) technology using a radio frequency of 13.56 MHz for communication.
Andrzej Firlej   +2 more
doaj   +1 more source

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