Results 21 to 30 of about 66,470 (157)

A New Approach to Shortest Route Finding in a Railway Network with Two Track Gauges and Gauge Changeovers

open access: yesMathematical Problems in Engineering, Volume 2019, Issue 1, 2019., 2019
The Spanish railway network is a complex one, due to the existence of standard gauge (1,435 mm), Iberian gauge (1,668 mm), and dual gauge (with three rails) subnetworks, as well as connections between the two first subnetworks (at the so‐called gauge changeovers), usable by dual gauge trains.
Alberto Almech   +4 more
wiley   +1 more source

A Framework for Vulnerability Detection in European Train Control Railway Communications

open access: yesSecurity and Communication Networks, Volume 2018, Issue 1, 2018., 2018
Railway systems have evolved considerably in the last years with the adoption of new communication technologies. Aiming to achieve a single European railway network, the European Rail Traffic Management System (ERTMS) emerged in Europe to substitute multiple and noninteroperable national railway communication systems.
Irene Arsuaga   +4 more
wiley   +1 more source

Los ferrocarriles de servicio público en Venezuela (1870-1990)

open access: yesAnuario de Estudios Americanos, 1998
Este artículo es un estado de la cuestión sobre la historia de los ferrocarriles de servicio público en Venezuela. El trabajo formó parte del proyecto financiado por la Fundación de los Ferrocarriles Españoles, “Los Ferrocarriles Latinoamericanos Ayer ...
Antonio Santamaría García
doaj   +1 more source

A Survey of Channel Measurements and Models for Current and Future Railway Communication Systems

open access: yesMobile Information Systems, Volume 2016, Issue 1, 2016., 2016
Modern society demands cheap, more efficient, and safer public transport. These enhancements, especially an increase in efficiency and safety, are accompanied by huge amounts of data traffic that need to be handled by wireless communication systems.
Paul Unterhuber   +14 more
wiley   +1 more source

Ganancias y pérdidas de los inversores británicos en la venta de los ferrocarriles al Estado argentino en 1947-1948

open access: yesAmérica Latina en la Historia Económica, 2016
En 1948 el Estado argentino compró los ferrocarriles que pertenecían a compañías británicas por 150 000 000 de libras, poniendo fin a casi 90 años de inversiones extranjeras en ferrocarriles en Argentina.
Mario Justo López
doaj   +1 more source

Fuentes para la historia de los ferrocarriles del Estado. Chile, siglo XIX

open access: yesAmérica Latina en la Historia Económica, 2014
Sin resumen.
Rafael Sagredo Baeza
doaj   +1 more source

El papel de los ingenieros y subalternos de MZA en las nuevas fórmulas mediáticas de la publicidad y la prensa durante el primer tercio del sigloXX [PDF]

open access: yes, 2014
Cada uno por su lado, ferrocarriles, prensa y publicidad, estos sectores han dejado abundante documentación, pero no así sus relaciones, que tampoco han interesado a los historiadores suficientemente.
González Jurado, Deborah
core  

Mismanagement amid resource abundance: Sovereign risk, private sector credit rationing, and economic stagnation in Colombia, 1861‒98

open access: yesThe Economic History Review, Volume 78, Issue 4, Page 1118-1150, November 2025.
Abstract This article examines the relationship between national politics, sovereign default, credit rationing, and their effects on fiscal revenues and exports in nineteenth‐century Colombia. Using quantitative and qualitative analysis, it challenges existing narratives on Colombia's lack of sustained nineteenth‐century export‐led development, showing
Andrew Primmer
wiley   +1 more source

Análisis de la eficiencia técnica de los ferrocarriles europeos [PDF]

open access: yes, 1992
En este documento nos proponemos realizar una aproximación al análisis de la eficiencia técnica de los ferrocarriles españoles y del resto de los países comunitarios. En este análisis es posible distinguir cinco apartados distintos.
Moreno Moreno, María del Carmen   +1 more
core  

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