Results 71 to 80 of about 657,080 (262)
Swing-out rail system separates overhead crane rails [PDF]
, 1966 Swing-out rail system separates and reconnects the overhead traveling crane rails of a building to provide for the passage of a thick concrete radiation shield sliding door through the rails. In the swing-out position, the rail cantilevered from an axial
Pitkin, R. G.
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
A decision support system to improve service quality in multimodal rapid rail systems: A bayesian perspective [PDF]
, 2011 Copyright @ 2011 International Conference on Computers and Industrial EngineeringIn this study, the accessibility of the rail transit stations in a multimodal network formed by a trunk line and its feeder lines are defined. Connectivity between lines and
Aktas, E, Topcu, I, Ugurlu, S
core
Advanced Energy and Sustainability Research, EarlyView.Considerable improvement in the performance of fully‐hydrocarbon‐based fuel cells is necessary to replace and compete with Per‐ and polyfluoroalkyl substances‐containing fuel cells. Herein, a way to enhance the ionic conductivity of the catalyst layer (CL) by incorporating insoluble ionomer particles into the CL is presented.
Emmanuel Balogun +7 more
wiley +1 more source
Nauka ta progres transportu, 2019 Purpose. Designing new models of construction machines is closely related to the development of slewing gear, and that, in turn, has a drive whose power and dimensions depend on the rotational resistance and the reduced friction coefficient in the units.
L. M. Bondarenko +2 more
doaj +1 more source
Torque‐Transmitting Architected Metamaterials for Flexible and Extendable Tubular Robotics
Advanced Intelligent Systems, EarlyView.Soft and continuum robots commonly rely on fluid, tendon, or rod‐based power transmissions, to control robotic form and actuation. This study presents an architected structure, based on patterned straight‐line mechanisms, that enables simultaneous bending, extending, and torsionally rigid (BETR) transmission.
Sawyer Thomas, Aman Garg, Jeffery Lipton
wiley +1 more source
Understanding Transit Ridership Demand for a Multi-Destination, Multimodal Transit Network in an American Metropolitan Area, Research Report 11-06 [PDF]
, 2012 This study examines the factors underlying transit demand in the multi-destination, integrated bus and rail transit network for Atlanta, Georgia. Atlanta provides an opportunity to explore the consequences of a multi-destination transit network for bus ...
Bhattacharya, Torsha +3 more
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Shape‐Memory Alloy Torsion Strips for Soft Robotic Manipulation and Morphing
Advanced Intelligent Systems, EarlyView.In this research, a dedicated configuration of SMA strip is proposed for soft robotic manipulation and morphing. This configuration has broad application prospects and demonstrates remarkable advantages in soft body joint operations. Mimicking invertebrates, soft robots tend to control each of their body joints to achieve the desired shape changes and ...
Changchun Wu +6 more
wiley +1 more source
Study on the electrical resistance of the sleeper-fastening elements system in railway tracks
Materiales de Construccion, 2012 The electrical resistance of the sleeper-fastening elements system in a wet railway track is a very important parameter. This is because the rails are electric conductors in the circuit of signaling and traction systems.
F. J. Barroso, P. Guarner, C. López
doaj +1 more source
Sequels to the Chicago Aviation Conference [PDF]
, 1946 This research aims to explore and propose a more effective management of rail and road infrastructure and the possibility of a more resource-efficient road and rail infrastructure by applying business models based on performance and a life-cycle ...
Waldo, Richard Kermit
core +2 more sources