Results 21 to 30 of about 34,621 (255)

An Electromagnetic Sensor for the Autonomous Running of Visually Impaired and Blind Athletes (Part I: The Fixed Infrastructure)

Sensors, 2017
Sport is one of the best ways to promote the social integration of people affected by physical disability, because it helps them to increase their self-esteem by facing difficulties and overcoming their disabilities.
Marco Pieralisi, Valentina Di Mattia, Valerio Petrini, Alfredo De Leo, Giovanni Manfredi, Paola Russo, Lorenzo Scalise, Graziano Cerri   +7 more
doaj   +1 more source

Experimental study of electrostatic ignition of nylon 1010 material under high pressure and pure oxygen environment

Polymer Testing
Polymer materials are prevalently used in the fabrication of oxygen equipment valves; however, they pose significant risks of ignition and explosion, often triggered by electrostatic charges.
Wei Yan, Shanliang Qiu, Xiaoliang Si, Minglei Qu, Zhibao Li, Bo Zhang, Zemin Duan   +6 more
doaj   +1 more source

Spatial Characterization of Personal RF-EMF Exposure in Public Transportation Buses

IEEE Access, 2019
New services and applications within vehicular environments employ multiple wireless communication systems, within a heterogeneous network framework. In this context, evaluation of electromagnetic field impact is compulsory in order to warrant compliance
Mikel Celaya-Echarri, Leyre Azpilicueta, Peio Lopez-Iturri, Erik Aguirre, Silvia De Miguel-Bilbao, Victoria Ramos, Francisco Falcone   +6 more
doaj   +1 more source

Experimental Study on the Discharge Characteristics of a Dripping ‘Rod–Plane’ Air Gap at High Altitude Under DC Voltages

Energies
High-voltage transmission and substation projects at high altitudes are pivotal in realizing the objective of universal electricity access. However, the reduced air density at elevated heights facilitates the formation and propagation of discharges ...
Chuyan Zhang, Xi Wang, Xinzhe Yu, Kaixuan Qu, Yuxi Dong, Yu Deng   +5 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

Integrated Learning‐Based Ageing Assessment of Silicone Rubber

High Voltage
The surface ageing of silicone rubber composite insulators, widely used in power systems, poses significant challenges. This study integrates Fourier transform infrared (FTIR) spectroscopy with machine learning to evaluate ageing states and explore ...
Xinzhe Yu, Kun Zhang, Zhenan Zhou, Zheyuan Liu, Yu Deng, Chen Gu, Songsong Zhou, Dongxu Sun   +7 more
doaj   +1 more source

Evaluation of Field-Diffusion Charging Models for Airborne Suspended Particles Charged by Corona Ions: Sum of Charge Quantities and Sum of Charging Rates

CSEE Journal of Power and Energy Systems
To evaluate field-diffusion charging models, a systematic comparative study is conducted in this paper. A field-diffusion charge quantity sum model (FDCQSM) and a field-diffusion charging rate sum model (FDCRSM) are introduced in which the Maxwell-Wagner
Kun He, Xiaoqian Ma, Li Xie, Yong Ju, Jiayu Lu, Luxing Zhao   +5 more
doaj   +1 more source

Standardization in the field of human exposure to high frequency electromagnetic fields: A starting point for future challenges [PDF]

Tehnika
This paper provides an overview of standardization activities and scientific studies related to the assessment of human exposure to electromagnetic fields (EMF). The paper discusses standards related to exposure to EMF of high frequencies (above 100 kHz)
Vulević Branislav D.
doaj   +1 more source

Computation of 3-D Electric Field on Buildings of Arbitrary Shape Near HVDC Transmission Lines

IEEE Access, 2023
Electrical environment of residences adjacent to Ultra high voltage direct current (UHVDC) transmission lines draws huge attentions as it affects people’s lives.
Po Long, Guocai Zuo, Kun He, Li Xie
doaj   +1 more source

Intelligent Orthopedics: Machine Learning in Diagnosis of Bone Disease, Implants, and Bone Health Monitoring

Advanced Healthcare Materials, EarlyView.
Efficient recovery from traumatic or degenerative diseases is a great challenge, even after all the advancements in bone and cartilage regeneration. Machine learning (ML) algorithms have presented opportunities to enhance these aspects by accurately analyzing imaging data.
Maryam Kamaei, Hesam Mohammadi, Shamim Golafshan, Mojtaba Alehosseini, Mahsa Mohammadzadeh, Atefeh Golshirazi, Nasim Golafshan, Tatiane Eufrásio‐da‐Silva, Alireza Dolatshahi‐Pirouz, Gorka Orive   +9 more
wiley   +1 more source