Results 71 to 80 of about 5,232 (296)

Subclinical Optic Nerve Involvement in Radiologically Isolated Syndrome: Multimodal Detection and Diagnostic Impact

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives We aimed to determine the frequency of subclinical optic nerve (ON) lesions using MRI, optical coherence tomography (OCT), and visual evoked potentials (VEP) in radiologically isolated syndrome (RIS), and to assess their diagnostic and prognostic significance.
Christine Lebrun‐Frenay   +13 more
wiley   +1 more source

Seismic Response of Liquid Storage Ground Supported Tanks for Different Slenderness Ratio [PDF]

open access: yes, 2016
Ground-supported cylindrical tanks are used to store a variety of liquids. This paper provides the theoretical background for takes into account impulsive and convective (sloshing) actions of the fluid in concrete containers fixed to rigid foundations ...
Kamila Kotrasová   +2 more
core   +1 more source

Large-Slenderness-Ratio Supersonic Aircraft Lateral–Directional Coupling Dynamics Analysis and Control

open access: yes, 2022
Large-slenderness-ratio aircraft in which a large portion of the aircraft’s mass is concentrated along its centreline face the problem of severe lateral-directional coupling.
Huitao Lyu   +4 more
core   +1 more source

Instability analysis of a filament-wound composite tube subjected to compression/bending

open access: yesAdvanced Composites Letters, 2019
The aim of this study is to investigate the global buckling of a relatively long composite cord–rubber tube subjected to axial compression and its cross-sectional instability due to bending by a macromechanical nonlinear finite element (FE) model ...
Gyula Szabó, Károly Váradi
doaj   +1 more source

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright   +10 more
wiley   +1 more source

Effect of slenderness ratio on the behavior of RC bearing walls under fire exposure

open access: yes
Reinforced concrete (RC) bearing walls are commonly used in building structures to resist axial and lateral loads. Therefore, their ability to withstand loads when exposed to fire is important.
Hawileh, Rami   +3 more
core   +1 more source

Ultimate strength of simply supported plate with opening under uniaxial compression

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2012
Unstiffened plates are integral part of all kinds of structures such as ship and offshore oil platforms. Openings are unavoidable and absolutely reduce the ultimate strength of structures.
Chang-Li Yu, Joo-Sung Lee
doaj   +1 more source

Horizontal transient response analysis of single pile considering local separation of pile and soil

open access: yesYantu gongcheng xuebao, 2020
Based on the Novak’s thin layer element method and the theory of radiant stresses, the radiation stress solution to the displacements of pile and soil in the Laplace domain is derived.
DING Zhao-wei , SONG Chun-yu , CHEN Long-zhu , SUN Hong
doaj   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez   +5 more
wiley   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

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