Results 21 to 30 of about 403,839 (268)
Development of track geometry inspection equipment for high-speed comprehensive inspection train in China [PDF]
Railway SciencesPurpose – This study aims to analyze the development direction of track geometry inspection equipment for high-speed comprehensive inspection train in China.
Yan Wang +4 more
doaj +1 more source
Statistical estimation and forecast of seasonal variations in measured track geometry
Nihon Kikai Gakkai ronbunshu, 2019 This paper describes a method for statistically estimating five components included in the time series of vertical track geometry measured at the same point on a railway track.
Masako KAMIYAMA +3 more
doaj +1 more source
Finite Element Based Tracking of Deforming Surfaces [PDF]
, 2014 We present an approach to robustly track the geometry of an object that deforms over time from a set of input point clouds captured from a single viewpoint.
Lang, Jochen +3 more
core +1 more source
Influence of Track Stiffness on Track Behaviour under Vertical Load
Promet (Zagreb), 2012 The analysis of track behaviour under vertical load is traditionally based on the presumption that the stresses and deformations in track elements can be determined by the application of the Winkler’s Hypothesis.
Leposava Puzavac +2 more
doaj +1 more source
Frontiers in Built Environment, 2020 When planning a new track or improving a track that is currently in-service, it is important to predict the probable rate of track deterioration as a function of the variables related to the train and its periodicity.
Andre L. O. de Melo +4 more
doaj +1 more source
The effect of confinement and defects on the thermal stability of skyrmions [PDF]
, 2017 The stability of magnetic skyrmions against thermal fluctuations and external perturbations is investigated within the framework of harmonic transition state theory for magnetic degrees of freedom.
Bessarab, Pavel F. +4 more
core +2 more sources
Civil and Environmental Engineering, 2016 The paper deals with the partial results of diagnostics of experimental sections of ballastless track Rheda 2000® and transition areas between ballastless and ballasted track structure around portals of tunnel Turecky vrch after six measurement cycles ...
Šmalo Michal
doaj +1 more source
Assessment of Track Quality in Trial Test Sections by Spot and Continuous Method
Communications, 2015 The quality of track alignment and track geometry is an essential precondition of safe and economical operation of railway track. The paper provides an analysis of diagnostics of relative track geometry parameters and evaluation of measurement deviations
Michal Smalo, Libor Izvolt
doaj +1 more source
Fully three-dimensional analysis of high-speed traintracksoil-structure dynamic interaction [PDF]
, 2010 In this paper, a general and fully three dimensional multi-body-finite element-boundary element model, formulated in the time domain to predict vibrations due to train passage at the vehicle, the track and the free field, is presented.
Domínguez Abascal, José +2 more
core +1 more source
Counting Strings, Wound and Bound [PDF]
, 2013 We analyze zero mode counting problems for Dirac operators that find their origin in string theory backgrounds. A first class of quantum mechanical models for which we compute the number of ground states arises from a string winding an isometric ...
Ashok, Sujay K. +2 more
core +2 more sources