Results 241 to 250 of about 20,901 (271)

Switch and crossing inspections and maintenance management using handheld computers

4th IET International Conference on Railway Condition Monitoring (RCM 2008), 2008
This paper discusses a new tool designed to assist in the performance of switch and crossing inspections. Known as SwitchlnspectTM, this PDA-based program allows the inspection to be conducted in electronic format. With measurements and defects recorded in this manner, the collected information may be used to more efficiently manage maintenance ...
C.S. Bonaventura, A.M. Zarembski, J.W. Palese   +2 more
openaire   +1 more source

Multicasting optical cross connects employing splitter-and-delivery switch

IEEE Photonics Technology Letters, 1998
A new splitter-and-delivery (SAD) switch having multicasting capability is proposed. It is best implemented in a single silicon board using planar silica waveguide technology. Less than -40-dB crosstalk is achievable by an auxiliary action of the optical gate. Three optical cross-connect architectures employing the SAD switch are proposed.
W.S. Hu, Q.J. Zeng
openaire   +1 more source

Stance-taking, accommodation, code switching and language crossing

Language and Dialogue, 2019
AbstractThis study involves an in-depth analysis of a sociolinguistic interview between the researcher and a college student in his junior year, herein named “Alex”. Within the entirety of the transcription, I conducted a detailed investigation of the interviewee’s linguistic features and strategies. He attempted to achieve several communicative goals,
openaire   +1 more source

Code-switching, language crossing and mediatized translinguistic practices

2019
Contrary to lay perceptions, code-switching (CS) is neither simply a strategy to compensate language attrition nor linguistic accommodation. It involves negotiations of self-identity in relation to particular communities. The first part of this chapter reviews studies of code-switching between Japanese and another language (English, Korean, Portuguese,
openaire   +1 more source

Guided-wave Electro-optic X-type Switches: Symmetry, Switching Characteristics and Cross-talk

Journal of Modern Optics, 1988
Abstract The influence of branching asymmetry and electrode offset on the switching characteristics and cross-talk of X-type switches is analysed theoretically. The relationship between the switch symmetry (i.e. the existence of a plane or centre of inversion) and the switching characteristics is found.
openaire   +1 more source

A Petri net asset management framework for railway switches and crossings

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2023
Jack Litherland, John Andrews
exaly  

Wheel-rail contact models in the presence of switches and crossings

Vehicle System Dynamics, 2023
Hugo Magalhães, Filipe Marques, Pedro Antunes   +2 more
exaly  

Challenges and methodology for pre-processing measured and new rail profiles to efficiently simulate wheel-rail interaction in switches and crossings

Vehicle System Dynamics, 2023
Yann Bezin, Hugo Magalhães, Gianluca Megna   +2 more
exaly  

The role of stiffness variation in switches and crossings: Comparison of vehicle–track interaction models with field measurements

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2020
Ilaria Grossoni, Louis M Le Pen, Yann Bezin   +2 more
exaly  

A Methodology for Switch and Crossing Optimization

ICRT 2017, 2018
Albert Lau, Chang Wan, Alf Helge Løhren, Inge Hoff   +3 more
openaire   +1 more source