Results 1 to 10 of about 1,160,707 (276)

A New Form of Train Detection as a Solution to Improve Level Crossing Closing Time [PDF]

open access: yesSensors, 2023
The critical points on the rail and road network are their intersections, i.e., level crossings. During a train crossing, car traffic is stopped. This reduces the fluidity of traffic on the road and, consequently, can cause congestion.
Michał Zawodny   +3 more
doaj   +2 more sources

Nonlinear level crossing models [PDF]

open access: yesPhysical Review A, 1998
We examine the effect of nonlinearity at a level crossing on the probability for nonadiabatic transitions $P$. By using the Dykhne-Davis-Pechukas formula, we derive simple analytic estimates for $P$ for two types of nonlinear crossings. In the first type,
A. Abragam   +45 more
core   +4 more sources

Level Crossing Along Sphaleron Barriers [PDF]

open access: yesPhysical Review D, 1994
In the electroweak sector of the standard model topologically inequivalent vacua are separated by finite energy barriers, whose height is given by the sphale\-ron.
A. Ringwald   +25 more
core   +3 more sources

Object Detection at Level Crossing Using Deep Learning [PDF]

open access: yesMicromachines, 2020
Multiple projects within the rail industry across different regions have been initiated to address the issue of over-population. These expansion plans and upgrade of technologies increases the number of intersections, junctions, and level crossings.
Muhammad Asad Bilal Fayyaz   +1 more
doaj   +2 more sources

Simple rules for resolved level-crossing spectra in magnetic field effects on reaction yields [PDF]

open access: yesMagnetic Resonance, 2021
In this work we derive conditions under which a level-crossing line in a magnetic field effect curve for a recombining radical pair will be equivalent to the electron spin resonance (ESR) spectrum and discuss three simple rules for qualitative prediction
D. V. Stass   +3 more
doaj   +2 more sources

Level Crossing for Hot Sphalerons [PDF]

open access: yesNuclear Physics B, 1994
We study the spectrum of the Dirac Hamiltonian in the presence of high temperature sphaleron-like fluctuations of the electroweak gauge and Higgs fields, relevant for the conditions prevailing in the early universe.
't Hooft   +34 more
core   +4 more sources

Level Crossing Rate of Macrodiversity System in the Presence of Multipath Fading and Shadowing [PDF]

open access: yesRadioengineering, 2015
Macrodiversity system including macrodiversity SC receiver and two microdiversity SC receivers is considered in this paper. Received signal experiences, simultaneously, both, long term fading and short term fading.
B. Jaksic   +4 more
doaj   +4 more sources

Level crossings as bottlenecks [PDF]

open access: yesVojnotehnički Glasnik, 2000
Level crossings represent bottlenecks from the aspect of vehicle capacity as one of basic parameters for traffic flow. From the railway traffic aspect they represent weak points on railway tracks due to rails exposure to the dynamic influence of road ...
Dragutin Jovanović , Milorad Opsenica
doaj   +2 more sources

AN APPLICATION OF THE AHP METHOD FOR EVALUATION OF LEVEL CROSSING DESIGN IN A CONGESTED URBAN AREA: CASE STUDY LC SOKOLSKA IN ZAGREB, CROATIA [PDF]

open access: yesTransport Problems, 2021
The AHP method(Analytic Hierarchy Process), as a part of the Multi- Criteria Decision-Making (MCDM) process, is one of the most used methods worldwide for dealing with the complexity of transport project evaluation.
Danijela BARIĆ, Antonija DŽAMBO
doaj   +1 more source

Application of ontology/conceptual modelling in the context of risk identification at level crossings

open access: yesActa Polytechnica CTU Proceedings, 2023
This conference paper discusses a new analytical approach to the evaluation of traffic safety at the railway crossings. The new method is based on the use of ontological principles.
Tomáš Kohout   +3 more
doaj   +1 more source

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