Results 51 to 60 of about 593,954 (295)

A Prospective Study of Individuals at Risk of Multiple Sclerosis Informs the Design of Primary Prevention Studies

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective In multiple sclerosis, the optimal time for deploying a therapeutic intervention is before the central nervous system is damaged; given the success of trials treating the earliest stage of MS, the radiologically isolated syndrome, developing primary prevention strategies is an important next challenge.
Amy W. Laitinen   +7 more
wiley   +1 more source

Impact of variable seawater conductivity on ocean wave-induced electromagnetic fields simulated with finite difference method

open access: yesFrontiers in Earth Science, 2023
Electric fields generated by the motion of ocean waves through the Earth’s ambient geomagnetic fields and the induced secondary magnetic field can be observed at the seafloor and at the sea-surface, and even in the air.
Jiaqi Ge, Yuguo Li, Yuguo Li
doaj   +1 more source

Non-minimal Einstein-Yang-Mills-Higgs theory: Associated, color and color-acoustic metrics for the Wu-Yang monopole model

open access: yes, 2007
We discuss a non-minimal Einstein-Yang-Mills-Higgs model with uniaxial anisotropy in the group space associated with the Higgs field. We apply this theory to the problem of propagation of color and color-acoustic waves in the gravitational background ...
A. B. Balakin   +13 more
core   +1 more source

Chaotic Emission from Electromagnetic Systems Considering Self-Interaction [PDF]

open access: yes, 2006
The emission of electromagnetic waves from a system described by the H\'enon-Heiles potential is studied in this work. The main aim being to analyze the behavior of the system when the damping term is included explicitly into the equations of motion ...
Kokubun, Fernando, Zanchin, Vilson T.
core   +2 more sources

Regularity of Wave-Maps in Dimension 2 + 1 [PDF]

open access: yesCommunications in Mathematical Physics, 2010
In this article we prove a Sacks-Uhlenbeck/Struwe type global regularity result for wave-maps $ :\mathbb{R}^{2+1}\to\mathcal{M}$ into general compact target manifolds $\mathcal{M}$.
Sterbenz, Jacob, Tataru, Daniel
openaire   +5 more sources

Assessment of Skin in Patients With Systemic Sclerosis Using High‐Frequency Ultrasound and Shear Wave Elastography: A Comparative Study With Histology, Molecular, and Clinical Parameters

open access: yesArthritis Care &Research, EarlyView.
Objective Ultrasound (US) has been proposed as a potential tool for assessing skin fibrosis in systemic sclerosis (SSc). However, a large‐scale comparison of US‐based assessment with histologic markers of skin fibrosis has not been reported. We evaluated US‐based skin assessments for their face validity (differentiation between involved SSc and healthy
Ruhani Desai   +12 more
wiley   +1 more source

Applicability of Nonlinear Wavemaker Theory

open access: yesJournal of Marine Science and Engineering, 2019
Generation of high-quality waves is essential when making numerical or physically model tests. When using a wavemaker theory outside the validity area, spurious waves are generated.
Mads Røge Eldrup, Thomas Lykke Andersen
doaj   +1 more source

Experimental analyses of two‐body wave energy converters with hydraulic power take‐off damping in regular and irregular waves

open access: yesIET Renewable Power Generation, 2021
A flume experimental study of a two‐body wave energy converter (WEC) with a hydraulic power take‐off (PTO) was conducted under the conditions of both regular and irregular waves.
Shuang Wu, Yanjun Liu, Jian Qin
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Analysis of Wave Load Characteristics of Hovercraft Based on Model Test

open access: yesJournal of Marine Science and Engineering
The prediction of the wave load on a hovercraft is essential for the design of the hull structure and safety. However, theoretical methods for the prediction of wave loads are still not mature enough due to the unique and complex nature of the air ...
Zhihua Zuo   +4 more
doaj   +1 more source

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