Results 61 to 70 of about 437 (210)
MachinesThe dynamic characteristics of the collector shoe–conductor rail interaction directly affect the operational performance of metro systems. Although irregularities exist in both the track and the conductor rail, their relative influence on interaction ...
Like Pan +4 more
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Advanced Engineering Materials, EarlyView.Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal +3 more
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Applied Sciences, 2020 The driving comfort of a straddle-type monorail, while considering the influence of the bridge structure, was studied on the basis of multibody dynamics and the finite element method.
Qingfei Gao +3 more
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THE PRESENCE OF VERTICAL IRREGULARITIES OF RAILWAY TRACK ACCORDING TO THE CAR TRACK METER
Science and Transport Progress, 2003 Two methods are proposed for the vertical roughness determination of railway track depending on data of the measuring carriage – trigonometric series method and numerical method. The vertical roughness and a warp were calculated on each rail. The warp was compared with the measured warp to estimate the precision of the measurement.
Rybkin, V. V., Sysyn, M. P.
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Advanced Functional Materials, EarlyView.We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim +6 more
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Advanced Functional Materials, EarlyView.A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang +7 more
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Advanced Functional Materials, EarlyView.A bilayer “Anchor‐and‐Seal” passivation strategy using EDAI2 and 4MeO‐PEAI effectively mitigates surface defects in vacuum‐processed perovskite films through synergistic hydrogen bonding and Lewis base coordination. This approach optimizes interfacial energy alignment and suppresses non‐radiative recombination, enabling vacuum‐deposited p‐i‐n ...
Mohammadhossein Kohan +4 more
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Jixie qiangdu, 2017 Extracting the information of frequency-amplitude of the track irregularity through the Hilbert-Huang Transform（ HHT） spectrum,the clustering analysis is carried on the track irregularity HHT spectrum for the railways of same operating condition,then we ...
DU ZhengJun, XU Lei, HUANG Yan
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Track irregularity limits from consideration of track-vehicle interaction
Mathematical and Computer Modelling, 1988 Safe and comfortable performance of railborne transport necessitates upkeep of track geometry irregularities within preset limits. This paper addresses to the methodology-with one case application including derivation of limits of track geometry irregularities based on track-vehicle interaction considerations as to meet the overall objectives of safety,
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An alternative procedure to measure railroad track irregularities. Application to a scaled track
Measurement, 2019 In this paper an alternative procedure to accurately measure static railroad track irregularities is proposed and applied to a scaled railroad track. The purpose of this work is the determination of highly-precise measured data in short track segments that needs to be used as input in the validation of railroad computational models that are used for on-
Javier F. Aceituno +3 more
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