Results 111 to 120 of about 237,474 (358)

Results of theoretical and experimental studies on determining the coefficient of subgrade reaction of sleepers for the conditions of main railways with axial loads of 30-35 tons per axle

MATEC Web of Conferences, 2018
The article considers obtaining numerical values of the coefficient of subgrade reaction of wooden and reinforced concrete sleepers with axial loads up to 30-35 tons per axle.
Darenskiy Oleksandr, Bielikov Eduard, Dudin Olexii, Zvierieva Alina, Oleshchenko Anatolii   +4 more
doaj   +1 more source

Investigation of the essence of the concept of "development management of the resource potential of railway transport" [PDF]

, 2018
Розглянуто зміст поняття "управління розвитком ресурсного потенціалу залізничного транспорту і необхідність його введення в науковий обіг, а також у роботі розглянуто процес розвитку ресурсного потенціалу залізничного транспорту. В результаті проведеного
Бурлака, Євгеній Олексійович, Чупир, Олена Миколаївна   +1 more
core  

Robustness Assessment of Public Transport Networks in Various Graph Representations: Systematic Review, Decision Support, and Case Study

Networks, EarlyView.
ABSTRACT The analysis of certain properties of the underlying graph of a public transport network generates insights about the network's structure. Hereby, the choice of the graph representation depends on a trade‐off between complexity reduction and information preservation to adequately model a public transport network.
Michael Palk, Stefan Voß, Raka Jovanovic   +2 more
wiley   +1 more source

Development of a methodology for transitioning from a spectral equation relative to a spatial variable to a differential equation relative to a spectral parameter in the Sturm-Liouville problem for a one-dimensional periodic two-layer photonic crystal

Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка
Relevance. In connection with solving the problem of scattering of electromagnetic waves (diffraction problem) on objects such as photonic crystals (one-dimensional periodic unbounded), it is important to study the dispersion relation.
O. V. Kazanko, O. E. Penkina, O. V. Golovko   +2 more
doaj   +1 more source

Specific feature of the restoration of operability of KPP-5 fasteners by using PRP-3.2 and PRP-3.2.1 rail pads

MATEC Web of Conferences, 2018
Areas of rational use of the track construction with reinforced concrete sleepers have been defined, however, it requires improving and the problem of intermediate rail fastenings is particularly serious here.
Fast Denis, Bugaets Natalia, Vitolberg Volodymir, Lichodey Alexandr, Stefanov Volodymyr   +4 more
doaj   +1 more source

THE ANALYSIS OF THE CFR TRAVELERS SA ACTIVITY FROM THE VIEWPOINT OF EFFICIENCY INDICATORS [PDF]

The purpose of the paper is to make an analysis of the transport activity at CFR travellers SA based on the evolution of the main efficiency indicators in this field. The purpose of the analysis is to accurately determine the advantages and disadvantages
SIMA, Elena
core  

Synergies of the Liberalization of the Railway Transport Market [PDF]

, 2017
Michal Panák, Eva Nedeliaková, Borna Abramović, Denis Šipuš   +3 more
openalex   +1 more source

Bioclimatic, demographic and anthropogenic correlates of grizzly bear activity patterns in the Greater Yellowstone Ecosystem

Oikos, EarlyView.
Plasticity of diel activity rhythms may be a key element for adaptations of wildlife populations to changing environmental conditions. In the last decades, grizzly bears Ursus arctos in the Greater Yellowstone Ecosystem (GYE) have experienced notable environmental fluctuations, including changes in availability of food sources and severe droughts ...
Aurora Donatelli, Mark A. Haroldson, Justin G. Clapp, Paolo Ciucci, Frank T. van Manen   +4 more
wiley   +1 more source

Economies of Scope in European Railways: An Efficiency Analysis [PDF]

In the course of railway reforms in the end of the last century, national European governments, as well the EU Commission, decided to open markets and to separate railway networks from train operations. Vertically integrated railway companies – companies
Christian Growitsch, Heike Wetzel
core  

Impact of Change of the Interlocking on the Acceleration of Railway Transport: A Case Study from the Podbrezová Railway Station [PDF]

, 2022
Adrián Šperka, Michal Valla, Eva Nedeliaková, Juraj Čamaj   +3 more
openalex   +1 more source