Results 31 to 40 of about 18,850 (212)

A fault prediction method for catenary of high-speed rails based on meteorological conditions

open access: yesJournal of Modern Transportation, 2019
Fault frequency of catenary is related to meteorological conditions. In this work, based on the historical data, catenary fault frequency and weather-related fault rate are introduced to analyse the correlation between catenary faults and meteorological ...
Sheng Lin   +4 more
doaj   +1 more source

Experimental Evaluation of Prototype Seismic Retrofits for Precast Concrete Hollow‐Core Floors

open access: yesEarthquake Spectra, Volume 42, Issue 1, February 2026.
Existing hollow‐core floors are vulnerable to nonductile failure and potential collapse under earthquake loading. This study presents the development and experimental evaluation of novel comprehensive seismic retrofits for hollow‐core floors. These retrofits include a strongback‐type retrofit that provides an alternative gravity load path through steel
Frank Büker   +4 more
wiley   +1 more source

The viscous catenary [PDF]

open access: yesPhysics of Fluids, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Koulakis, John P., Mitescu, Catalin D.
openaire   +1 more source

Robustness assessment of reinforced concrete structures for different failure scenarios

open access: yesStructural Concrete, Volume 27, Issue 1, Page 279-313, February 2026.
Abstract This study describes the robustness assessment of 3D reinforced concrete structures analyzing the response of the 2D frames in different design configurations and failure scenarios. The structures are characterized by both frames with wide beams and seismic‐resistant frames with deep beams.
E. Miceli   +2 more
wiley   +1 more source

Ultimate behavior of idealized composite floor elements at ambient and elevated temperature [PDF]

open access: yes, 2009
This paper is concerned with the ultimate behavior of composite floor slabs under extreme loading situations resembling those occurring during severe building fires.
Cashell, KA   +2 more
core   +1 more source

Geometrically Templated, Ultra‐Lightweight and High Strength Soap Films from Lyotropic Liquid Crystalline Graphene Oxide/Polymer Composites

open access: yesAdvanced Functional Materials, Volume 36, Issue 8, 26 January 2026.
Shellular materials form spontaneously by dip coating the primitive triply periodic minimal surface (TPMS) wireframe in an aqueous solution of lyotropic liquid crystalline graphene oxide (GO) nanosheets mixed with polymers. Regulated by surface tension, GO nanosheets align on the polymer soap film as the stress builds up during drying.
Yinding Chi   +9 more
wiley   +1 more source

Effects of Crosswind on Pantograph–Catenary Wear Using Nonlinear Multibody System Dynamic Algorithms

open access: yesWorld Electric Vehicle Journal, 2023
In this study, a multibody system (MBS) computational framework is developed to determine the exact location of the contact point and wear prediction resulting from the pantograph–catenary interaction. The railroad vehicle models in the MBS computational
Siripong Daocharoenporn   +1 more
doaj   +1 more source

Shape-changing solar sails for novel mission applications [PDF]

open access: yes, 2013
In order to increase the range of potential mission applications of solar sail technology, this paper introduces the concepts of shape change and continuously variable optical properties to large gossamer spacecraft.
Borggräfe, A.   +3 more
core   +1 more source

Enhanced Rabi Splitting of Exciton‐Polaritons and Plasmon‐Polaritons in Lithium Niobate Metasurface

open access: yesLaser &Photonics Reviews, Volume 20, Issue 1, 8 January 2026.
This study presents an ultrathin lithium niobate metasurface capable of inducing highly sensitive Fano‐shaped resonances, enabling strong coupling with TMDC monolayers and plasmonic metamaterials/metasurfaces. Adjustable Q‐factors lead to controllable coupling strengths, achieving substantial Rabi splitting.
Andergachew Mekonnen Berhe   +4 more
wiley   +1 more source

A Fast Simulation Model of Pantograph–Stitched-Catenary Interaction in Long-Distance Travel

open access: yesApplied Sciences
The increasing operation speed of high-speed trains allows the pantograph to continuously interact with the catenary over a long distance in a short time, and many new methods have been developed to efficiently calculate its dynamics.
Like Pan   +4 more
doaj   +1 more source

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