Results 31 to 40 of about 250,878 (317)

Sound Source Localisation for a High-Speed Train and Its Transfer Path to Interior Noise

open access: yesChinese Journal of Mechanical Engineering, 2019
Noise is one of the key issues in the operation of high-speed railways, with sound source localisation and its transfer path as the two major aspects. This study investigates both the exterior and interior sound source distribution of a high-speed train ...
Jie Zhang   +3 more
doaj   +1 more source

Making the “Tractioneer” [PDF]

open access: yesScientific American, 1912
n ...
openaire   +1 more source

Neurovascular Contacts in the Pathophysiology of Neuralgic Amyotrophy: An Observational Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neuralgic amyotrophy (NA) is a prevalent, monophasic, multifocal immune‐mediated neuropathy. A distinctive characteristic of the disease is the occurrence of nerve or fascicle constrictions and torsions (NA‐associated focal nerve lesions, NAFL). The pathophysiology underlying this phenomenon remains to be fully elucidated.
Johannes Fabian Holle   +4 more
wiley   +1 more source

A 17 Year Old With Developmental Delay Presenting With Increasing Confusion and Imbalance

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Methylmalonic acidemia is an autosomal recessive genetic disorder primarily caused by defects in methylmalonyl‐CoA mutase and cobalamin (vitamin B12) metabolism. These defects disrupt the tricarboxylic acid cycle and oxidative phosphorylation, leading to the abnormal accumulation of metabolic products such as methylmalonic acid, propionic acid,
Wei Zhao, Yingli Zhang, Hongliang Zheng
wiley   +1 more source

Performance evaluation of the hydrogen-powered prototype locomotive ‘Hydrogen Pioneer’ [PDF]

open access: yes, 2014
The narrow-gauge locomotive ‘Hydrogen Pioneer’, which was developed and constructed at the University of Birmingham, was employed to establish the performance of a hydrogen-hybrid railway traction vehicle.
Roberts, Clive; id_orcid   +5 more
core   +1 more source

Effect of lateral stiffness of secondary suspensions on heavy-haul locomotives stability during braking based on simulation and experiment

open access: yesTransport, 2019
This paper aimed to investigate the effect of the lateral stiffness of secondary suspensions on the stability capacity and running safety of heavy-haul locomotives during braking based on the dynamic model and the field braking tests.
Lirong Guo   +5 more
doaj   +1 more source

Dynamic Characteristics and Working Modes of Permanent Magnet Electrodynamic Suspension Vehicle System Based on Six Wheels of Annular Halbach Structure

open access: yesTechnologies, 2023
A novel type of suspension system for maglev vehicles using six permanent magnet electrodynamic wheels (EDW) and conductor plate has been designed. It has the advantages of high speed, environmental protection, and a low turning radius.
Peng Lin   +5 more
doaj   +1 more source

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du   +4 more
wiley   +1 more source

Bond Graph Based Stability Analysis of a Railway Traction System [PDF]

open access: yes, 2005
This paper emphasises the interest of the Bond Graph approach for analysis and system design of heterogeneous and multi-field devices. In particular, the local stability analysis of non linear systems can be directly derived from the linearised Causal ...
Sareni, Bruno   +3 more
core  

Predictive Control Strategies Used to Solve Challenges Related to Modern Railway Vehicles [PDF]

open access: yes, 2011
This paper is an attempt to collate and critically appraise the recent advances in control strategies used to solve challenges related to railway vehicles which present nonlinearities and uncertainties.
Pislaru, Crinela   +13 more
core   +1 more source

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