Results 21 to 30 of about 32,632 (265)
Applied SciencesGlobal navigation satellite system (GNSS) has been widely used in many fields due to their low cost and high positioning accuracy. Because of the open frequency of navigation signals, the low power of navigation signals, and the growing reliance of many ...
Wenjian Wang, Yinghong Wen, Yongxia Liu
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Electromagnetic safety of high voltage traction networks [PDF]
E3S Web of Conferences, 2019 The article provides procedure for simulation modeling of traction power supply systems which allows analyzing electromagnetic safety conditions in perspective high voltage traction net- works. Modeling of electromagnetic fields in the Fazonord software application proved that 50 kV traction system is characterized by the highest electromagnetic ...
Buyakova Natalya +2 more
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Fast Optimization of the Installation Position of 5G-R Antenna on the Train Roof
Applied SciencesIn 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
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PHASE GRADIENT METHOD OF MAGNETIC FIELD MEASUREMENTS IN ELECTRIC VEHICLES [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2013 Operation of electric and hybrid vehicles demands real time magnetic field control, for instance, for fire and electromagnetic safety. The article deals with a method of magnetic field measurements onboard electric cars taking into account peculiar ...
N. G. Ptitsyna +3 more
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Polymer TestingPolymer 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 +6 more
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Metasurface for Near-Field Wireless Power Transfer With Reduced Electric Field Leakage
IEEE 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
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EnergiesHigh-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
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From 2G to 5G Spatial Modeling of Personal RF-EMF Exposure Within Urban Public Trams
IEEE 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
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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
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Advanced Engineering Materials, EarlyView.This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh +6 more
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