Results 81 to 90 of about 7,548 (270)
Rail wear rate on the Belgian railway network: a big-data analysis
, 2023 This paper presents a big data-based analysis of the rail wear of the whole Belgian railway network measured in 2012 and 2019. Wear rates are reported, discussed, and quantitatively formulated as functions of critical factors in terms of curve radius ...
Dollevoet, R.P.B.J. (author) +4 more
core +1 more source
A “Tech First” Approach to Foreign Policy? The Three Meanings of Tech Diplomacy
Global Policy, EarlyView.ABSTRACT Scholars have recently argued that international politics is plagued by instability as the world rapidly transitions from one crisis to another. This state of “Permacrisis,” or permanent crises between states, is driven by technological innovations which create new kinds of crises and drive competitions between adversarial states.
Ilan Manor
wiley +1 more source
Friction and wear simulation of the wheel–rail interface
, 2009 The conditions in wheel rail contacts can be both mild and severe. Predicting the friction and the wear in such contacts is generally thought to be rather difficult and uncertain.
S. Andersson, Andersson, Sören,
core +1 more source
The manufacture and wear of rails
Journal of the Franklin Institute"Excerpt Minutes of proceedings of the Institution of civil engineers. vol. XXVII. Session 1867-8." ; Mode of access: Internet.
openaire +2 more sources
Who Makes the Far Right? Exploring Membership Application Data of the National Front of Australia
Australian Journal of Politics &History, EarlyView.This paper addresses a problem for scholars examining the question of who supports far right political parties or movements. Due to the semi‐clandestine or oppositional nature of far right groups, historians, as well as those in adjacent disciplines, have often been unable to gain access to sufficient records or data to conduct analysis of who supports
Evan Smith, Lauren Pikó
wiley +1 more source
, 2008 An increased wear rate and a shift of wear mechanism in the wheel-rail contact has been observed in tight curves, mainly due to the change from an almost pure rolling contact to more of a sliding contact.
Sundh, Jon, +2 more
core +1 more source
Study on modeling and numerical analysis for the prediction of wheel wear development
Mechanical Engineering Journal, 2017 The rights-of-way of urban railway systems contain many sharp curves. Since sharp curves can contribute to wheel and rail wear, the ability to predict the development of wheel wear is crucial to maintaining safe operation of such systems.
Ariku YOSHIOKA +3 more
doaj +1 more source
Neurodevelopmental Phenotypes and Brain Anomalies in Individuals With Heterozygous SEMA6A Variants
Clinical Genetics, EarlyView.SEMA6A plays a role in cell migration and axon guidance in the developing central nervous system. Phenotypes seen in eleven individuals heterozygous for SEMA6A variants included developmental delay, intellectual disability, autism/autistic behaviors, behavioral abnormalities, attention disorders, hypotonia, and brain anomalies.
Evan Burchfiel +27 more
wiley +1 more source
Wheel / Rail Wear and Noise Control of Rail Transit Vehicles Based on Wheel / Rail Lubrication
机车电传动, 2020 In view of the problem of wheel/ rail wear and noise of rail transit vehicles, a method of controlling wheel /rail friction coefficient was proposed. Through the analysis of the influence of wheel /rail lubrication on wheel /rail friction and noise, it ...
Wengen XUE +3 more
doaj
Feasibility Study for Wear Resistance of Rails
Journal of The Korean Society of Manufacturing Technology Engineers, 2014 Rails are continuously exposed to severe environments due to increases in train service frequency, passing tonnage, and speed. Wear is one of the most common types of damage observed on rails. The surface of railsis heat treated to secure safety at critical sites, such as curved tracks or turnouts.
Seky Chang, Young Sik Pyun
openaire +2 more sources