Results 101 to 110 of about 3,319,079 (328)
Analyzing Major Track Quality Indices and Introducing a Universally Applicable TQI
Applied Sciences, 2020 Adequate railway track condition is a prerequisite for safe and reliable railway operation. Many track quality indices (TQIs) have been developed with the aim of assessing the track condition holistically.
Stefan Offenbacher +3 more
doaj +1 more source
Array of sensors: A spatiotemporal-state-space model for target trajectory tracking [PDF]
, 2016 In this paper, with the objective of tracking the trajectory of multiple mobile targets, a novel spatiotemporal-state-space model is introduced for an array of sensors distributed in space.
Kamil, Y, Manikas, A, Sridhar, V
core +1 more source
Advanced Engineering Materials, EarlyView.Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente +3 more
wiley +1 more source
3D‐Printed Giant Magnetoresistive (GMR) Sensors Based on Self Compliant Springs
Advanced Engineering Materials, EarlyView.This work explores 3D‐printed GMR sensors utilizing self‐compliant spring structures and conductive PLA composites. By optimizing arm width, we achieved high piezoresistive (0.34%/mm) and magnetoresistive (0.77%/mT) sensitivities. Demonstrated through Bluetooth‐integrated pressure and magnetic position sensing, these full printed low‐cost, customizable
Josu Fernández Maestu +4 more
wiley +1 more source
Impact of Rail Irregularities on Longitudinal Level Deterioration Based on Deconvoluted Data
InfrastructuresWhen a wheel passes over a rail surface irregularity, the resulting vehicle excitations lead to the application of additional system forces to both the track and the vehicle.
Markus Loidolt +2 more
doaj +1 more source
Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V
Advanced Engineering Materials, EarlyView.Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena +2 more
wiley +1 more source
Bludov - Hanusovice Railway Track Reconstruction (section between km 56.165 - km 59.105) Including Track Laying Technology [PDF]
, 2015 Bakalářská práce se zabývá úpravou geometrických parametrů koleje a návrhem vhodné skladby železničního svršku v úseku železniční tratě Bludov – Hanušovice.
Hlavová, Vendula
core
Allocation of effective maintenance limit for railway track geometry
Structure and Infrastructure Engineering, 2019 The objective of this study has been to develop an approach to the allocation of an effective maintenance limit for track geometry maintenance that leads to a minimisation of the total annual maint...
Hamid Khajehei +3 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu +8 more
wiley +1 more source
Non-archimedean Yomdin-Gromov parametrizations and points of bounded height
, 2015 We prove an analogue of the Yomdin-Gromov Lemma for $p$-adic definable sets and more broadly in a non-archimedean, definable context. This analogue keeps track of piecewise approximation by Taylor polynomials, a nontrivial aspect in the totally ...
Cluckers, R., Comte, G., Loeser, F.
core +1 more source