Results 91 to 100 of about 1,661 (198)
Research on traction load forecasting of electrified railway
机车电传动, 2023 In order to ensure the power quality of traction power supply system and reduce the costs for purchasing electricity by traction substation, a probabilistic forecasting model of traction load based on sparse Gaussian process (SGP) is proposed.
LIU Fu, LIAO Qishu
doaj
International Journal of Applied Linguistics, EarlyView.ABSTRACT The disciplinary background of second language (L2) writers can shape their writing style, including their lexical choices. This study examines lexical differences in nonacademic argumentative essays on the same topic by L2‐English graduate students with humanities‐related or science‐related majors.
Haerim Hwang, Hyunwoo Kim
wiley +1 more source
Availability Analysis of Frequency Converters in Electrified Railway Systems [Elektronisk resurs] [PDF]
, 2015 The increased interest in electrified railways can be explained by their huge capacity, high efficiency, and low pollution. Today’s electrified railway is expecting higher demands for electric power for increased speeds, increased traffic volume capacity,
Mahmood, Yasser Ahmed,, Pham, Hoang,
core
International Transactions in Operational Research, EarlyView.Abstract We address the scheduling conflicting jobs on parallel identical machines problem with makespan minimization, a classical and computationally challenging variant of parallel machine scheduling. We develop and evaluate three distinct solution methodologies: a novel constraint programming (CP) formulation, and two metaheuristics: a multi ...
Roberto Maria Rosati +3 more
wiley +1 more source
Autotransformer fed traction power supply system: analysis, modeling and simulation
Global Energy Interconnection, 2018 For many decades, Ethiopia had been using a meter gauge railway from Addis Ababa to the red sea port of Djibouti. Currently, the century old railway is completely replaced by a brand new standard gauge electrified railway line aiming to connect the ...
Getachew Biru Worku, Asegid Belay Kebede
doaj +1 more source
The Agencies of the European Union: A Glimmer of Hope for Enlargement?
JCMS: Journal of Common Market Studies, EarlyView.Abstract In recent years, the process of EU enlargement has become increasingly difficult. The longer the process drags on and the less likely accession appears, the more the candidate states are discouraged and the less influential the EU becomes. A different approach to integration must therefore be used.
Matis Poussardin
wiley +1 more source
Contributions to the foundations of a safety case for the use of GNSS in railway environments [PDF]
, 2009 The use of GNSS in the railways for passenger information services and selective door opening is already commonplace but the advancement of this increasingly popular navigation technique into safety of life rail applications has been hindered by the ...
Stolagiewicz, A.A.
core
PSpice modeling of electrified railway propulsion drive rectifiers for harmonic analysis [PDF]
, 2009 A method to construct the electrified railway propulsion drive rectifier in PSpice for EMC assessment is developed. The working mechanisms of a three level NPC PWM rectifier and its logical signal generator are elaborated.
Kelin Jia +3 more
core +1 more source
A Novel Railway Power Systems Design Methodology Using Genetic Algorithms: Models and Application
IEEE AccessThe development and the upgrade of railway networks is one of the strategies to reach decarbonization targets in the transportation field, thanks to the considerably lower energy consumption of electric trains with respect to other vehicles, typically ...
Alessandro Ruvio +4 more
doaj +1 more source
Journal of Agrarian Change, EarlyView.ABSTRACT This article examines how long‐standing local conflicts concerning the nature of common property, the distribution of access and administrative rights associated with it, and more broadly the nature of the community and the forms of citizenship that organise its governance shape demands for justice regarding land transfers to outside investors
Eric Léonard +2 more
wiley +1 more source