Results 31 to 40 of about 179,553 (304)

Fast Optimization of the Installation Position of 5G-R Antenna on the Train Roof

open access: yesApplied Sciences
In this paper, a prediction model of the coupling coefficient based on a multi-module neural network (MMNN) is developed to quickly optimize the installation position of the roof antenna of the 5G-Railway (5G-R) communication system, so as to improve the
Yu Bai, Jie Ren, Yinghong Wen
doaj   +1 more source

On seed island generation and the non-linear self-consistent interaction of the tearing mode with electromagnetic gyro-kinetic turbulence [PDF]

open access: yes, 2014
The multi-scale interaction of self-consistently driven magnetic islands with electromagnetic turbulence is studied within the three dimensional, toroidal gyro-kinetic framework. It can be seen that, even in the presence of electromagnetic turbulence the
Buchholz, Rico   +6 more
core   +3 more sources

Metasurface for Near-Field Wireless Power Transfer With Reduced Electric Field Leakage

open access: yesIEEE Access, 2020
Wireless power transfer is a breakthrough technology which can be used in all aspects of humans daily life. Here, a bi-layer metasurface as a transmitter for near-field wireless power transfer is proposed and studied.
Aleksandr Markvart   +5 more
doaj   +1 more source

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

open access: yesEnergies
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   +5 more
doaj   +1 more source

From 2G to 5G Spatial Modeling of Personal RF-EMF Exposure Within Urban Public Trams

open access: yesIEEE Access, 2020
The upcoming design and implementation of the new generation of 5G cellular systems, jointly with the multiple wireless communication systems that nowadays coexist within vehicular environments, leads to Heterogeneous Network challenging urban scenarios.
Mikel Celaya-Echarri   +5 more
doaj   +1 more source

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

open access: yesIEEE 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

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Integrated Learning‐Based Ageing Assessment of Silicone Rubber

open access: yesHigh 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   +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

open access: yesCSEE 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   +5 more
doaj   +1 more source

On Modelling of Maximum Electromagnetic Field in Electrically Large Enclosures

open access: yesMeasurement Science Review, 2022
The maximum electromagnetic field formed in the electrically large enclosures for a given input power has always been the focus of electromagnetic compatibility issues such as radiation sensitivity and shielding effectiveness.
Chen Dan   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy