Results 31 to 40 of about 660,052 (304)
Large scale railway renewal planning with a multiobjective modeling approach [PDF]
, 2018 Conferência realizada na Filândia, Helsinquia, de 20-24 de agosto de 2018A multiobjective modeling approach for managing large scale railway infrastructure asset renewal is presented.
Almeida, Luís Alçada +2 more
core +1 more source
Magnetic Flux Guides by Material Extrusion
Advanced Science, EarlyView.Magnetic flux guidance can increase inductive coupling and forces for magnetic sensors, actuators, and transducers. Here, a magnetic material extrusion method is used to fabricate flux concentration structures of arbitrary shapes with a magnetic permeability of 42. In line with simulation analysis, experimental results show that these materials provide
Jorge Cañada +4 more
wiley +1 more source
Advanced Science, EarlyView.Schematic showing a stretchable triboelectric nanogenerator based on interlocked wavy architectures that uses EGaIn microflower‐embedded PVDF‐TrFE and Nylon‐6 nanofiber membranes. The multi‐petaled, electron‐rich EGaIn microflowers enhance interfacial polarization and capacitance, while the interlocked wavy architecture enlarges the effective contact ...
Qianqian Xu +12 more
wiley +1 more source
Evaluation of a risk assessment system for heritage railway earthworks [PDF]
, 2013 There are currently over 100 heritage railways in the UK carrying 6.8 million passengers on 15 million passenger journeys and contributing an estimated £579 million to the UK economy.
Crapper, Martin +2 more
core
Advanced Science, EarlyView.A thermally programmable two‐port non‐Hermitian acoustic metastructure is presented, where temperature acts as a non‐geometric tuning variable. Thermal modulation reconfigures impedance matching and loss‐leakage coupling, enabling exceptional‐point driven, broadband, and direction‐dependent sound absorption without requiring geometric reconfiguration ...
Zichao Guo +6 more
wiley +1 more source
Optimal railway infrastructure maintenance and repair policies to manage risk under uncertainty with adaptive control [PDF]
, 2006 The aim of this paper is to apply two adaptive control formulations under uncertainty, say open-loop and closed-loop, to the process of developing maintenance and repair policies for railway infrastructures.
Carretero Pérez, Jesús +3 more
core +1 more source
Livestock Tango: U.S. and Latin America Dance Together, but Who Will Lead?
Applied Economic Perspectives and Policy, EarlyView.ABSTRACT This study examines the competitiveness between Latin American and U.S. livestock and meat sectors. We employ a computable general equilibrium modeling framework to evaluate two scenarios: coordinated improvements in Latin American productivity, transport efficiency, and market access (Scenario I), and the minimum productivity gains required ...
Taís C. Menezes +2 more
wiley +1 more source
Nihon Kikai Gakkai ronbunshu, 2017 A new vibration reduction device against flexural vibration of railway vehicle carbody utilizing deformation of a donut-shaped elastic body called elastic torus is presented in this paper.
Takahiro TOMIOKA +3 more
doaj +1 more source
The Material and Immaterial Urban Remains of a Railway Heritage – the case of Araraquara/SP (Brazil) [PDF]
, 2017 The Araraquara Railway Station was built in 1885 as a symbol of prosperity. With the passing time it turned to be something indifferent to the city population, being deactivated in 2015.
Lourencetti, Fernanda de Lima
core
A study of lateral-force estimation equation focusing on moment of a train bogie
Nihon Kikai Gakkai ronbunshu, 2016 When railway vehicles pass through a sharp curve, yaw moment is generated at the bogie. This condition affects the increase of the lateral force of the outside wheel of the front axle of the leading bogie, which is important factor for assessing the ...
Takayuki TANAKA +3 more
doaj +1 more source