Results 71 to 80 of about 1,834,169 (290)
Catheterization and Cardiovascular Interventions, EarlyView.ABSTRACT Percutaneous transaxillary access is an established alternative to transfemoral large‐bore arterial access for transcatheter structural heart interventions and mechanical circulatory support (MCS). Although useful for overcoming hostile iliofemoral anatomy and providing prolonged support and patient mobilization in case of MCS, the axillary ...
Gioel Gabrio Secco +9 more
wiley +1 more source
Multi-objective Optimization of a Rail Profile on Curves for A Mixed Passenger and Freight Railway
工程科学与技术ObjectiveThe mixed passenger and freight railway operates EMUs, locomotives, freight trains, and ordinary passenger trains. Different wheel profiles run on the same line, which results in a complex wheel-rail matching relationship.
NA Tong +5 more
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Research on the Wheel-rail Matching in High-speed Railway under Different Traction Conditions
机车电传动, 2018 In order to study the contact characteristics of the new rail profile and the high-speed EMUs wheel profiles, the profiles matching between LMA, S1002CN, XP55 wheel and 60D, 60N rail in the middle position had been proceeded.
WANG Xueping, ZHANG Jun, MA He
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Nihon Kikai Gakkai ronbunshu, 2014 It’s generally known that tangential force of wheel/rail interface which depends on a change of coefficient of friction between wheel and rail has a big influence on a steady lateral force of railway vehicle.
Daisuke YAMAMOTO
doaj +1 more source
Abstract On-line milling rail profile is a new technology developed in recent years, which eliminates serious defects such as wavy wear layer on the top surface of rail profile through profiling milling and reshapes the shape of rail profile. Previous studies have focused on the maximum milling thickness, milling efficiency and the ability to ...
Yanan Luo +4 more
openaire +1 more source
Catheterization and Cardiovascular Interventions, EarlyView.ABSTRACT Heavily calcified coronary lesions remain a major challenge in percutaneous coronary intervention (PCI), often limiting the effectiveness of intravascular lithotripsy (IVL). We report a five‐case series in which IVL failed to achieve adequate lesion modification but was successfully augmented by the addition of one or more buddy wires.
Alfredo Marchese +5 more
wiley +1 more source
A nonlinear vehicle-structure interaction methodology with wheel-rail detachment and reattachment [PDF]
, 2013 . A vehicle-structure interaction methodology with a nonlinear contact formulation based on contact and target elements has been developed. To solve the dynamic equations of motion, an incremental formulation has been used due to the nonlinear nature ...
Azevedo, A.F.M. +3 more
core +3 more sources
Ohio & Lake Erie Regional Rail Ohio Hub study. Slide presentation [PDF]
Title from PDF cover (viewed on Jan.
Ohio Rail Development Commission.
core +5 more sources
Advances in Mechanical Engineering, 2017 Asymmetrical rail grinding in sharp-radius curves could reduce the side wear of railheads and enhance curve capacity of rail vehicles. The wheel/rail contact performance and curve capacity could be further improved by the optimization of the asymmetrical
Wei Zeng +4 more
doaj +1 more source
, 2021 Regulatory and special visual inspection of railway tracks is important to ensure the safe and secure operation of trains. Due to increased traffic volumes, operational speeds and axle loads, new technologies are emerging to collect and monitor data more
Hendry, Michael T. +3 more
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