Results 21 to 30 of about 38,260 (156)
Rail Topology Ontology: A Rail Infrastructure Base Ontology [PDF]
LNCS 12922 (2021) 597-612, 2021 Engineering projects for railway infrastructure typically involve many subsystems which need consistent views of the planned and built infrastructure and its underlying topology. Consistency is typically ensured by exchanging and verifying data between tools using XML-based data formats and UML-based object-oriented models. A tighter alignment of these
arxiv +1 more source
Orange Peels and Fresnel Integrals [PDF]
, 2012 There are two standard ways of peeling an orange: either cut the skin along meridians, or cut it along a spiral. We consider here the second method, and study the shape of the spiral strip, when unfolded on a table. We derive a formula that describes the
Andre, G. Henriques, Laurent Bartholdi
core +4 more sources
Geographic characterization of railway systems [PDF]
, 2021 Railway systems provide pivotal support to modern societies, making their efficiency and robustness important to ensure. However, these systems are susceptible to disruptions and delays, leading to accumulating economic damage. The large spatial scale of delay spreading typically make it difficult to distinguish which regions will ultimately affected ...
arxiv +1 more source
Frenet force analysis in performance evaluation of railroad vehicle systems [PDF]
, 2021 A data-driven science approach, based on integrating nonlinear multibody system (MBS) formulations and new geometric concepts, is used in this paper to compare the performance of two widely used railroad bogies: the three-piece bogie and the Y25 bogie ...
Bettamin, D +3 more
core +1 more source
Railway Planning Double-Double Track (Case Study of Bekasi Station km 26 + 652 - Jatinegara Station km 12 + 050 [PDF]
, 2020 Increasing the number of population and the development of activities will cause a growing need for space every day, this will result in physical changes and urban land use and can cause increased intensity of population movement from Megapolitan cities ...
Prasetio, Ido, rifai, Andri irfan
core +2 more sources
5G for Railways: the Next Generation Railway Dedicated Communications [PDF]
arXiv, 2022 To overcome increasing traffic, provide various new services, further ensure safety and security, significantly improve travel comfort, a new communication system for railways is required. Since 2019, public networks have been evolving to the fifth generation communication (5G) worldwide, whereas the main communication system of railway is still based ...
arxiv
Integrating Optimal EV Charging in the Energy Management of Electric Railway Stations [PDF]
arXiv, 2023 In this paper, an electric railway Energy Management System (EMS) with integration of an Energy Storage System (ESS), Regenerative Braking Energy (RBE), and renewable generation is proposed to minimize the daily operating costs of the railway station while meeting railway and Electric Vehicle (EV) charging demand. Compared to other railway EMS methods,
arxiv
Flocking together : collective animal minds in contemporary fiction [PDF]
, 2020 The remarkable coordination displayed by animal groups such as an ant colony or a flock of birds in flight is not just a behavioral feat; it reflects a full-fledged form of collective cognition.
Caracciolo, Marco
core +2 more sources
Radio Communication Scenarios in 5G-Railways [PDF]
arXiv, 2021 With the rapid development of railways, especially high-speed railways, there is an increasingly urgent demand for new wireless communication system for railways. Taking the mature 5G technology as an opportunity, 5G-railways (5G-R) have been widely regarded as a solution to meet the diversified demands of railway wireless communications.
arxiv
Physical Attacks on the Railway System [PDF]
arXiv, 2023 Recent attacks encouraged public interest in physical security for railways. Knowing about and learning from previous attacks is necessary to secure against them. This paper presents a structured data set of physical attacks against railways. We analyze the data regarding the used means, the railway system's target component, the attacker type, and the
arxiv