Results 41 to 50 of about 1,365,433 (369)
Unipolar and bipolar fatigue in antiferroelectric lead zirconate thin films and evidences for switching-induced charge injection inducing fatigue [PDF]
Applied Physics Letters, 96, 102906 (2010), 2010 For the first time, we show that unipolar fatigue does occur in antiferroelectric capacitors, confirming the predictions of a previous work [Appl. Phys. Lett., 94, 072901 (2009)]. We also show that unipolar fatigue in antiferroelectrics is less severe than bipolar fatigue if the driving field is of the same magnitude.
arxiv +1 more source
After-Fatigue Condition: A Novel Analysis Based on Surface EMG Signals [PDF]
arXiv, 2023 This study introduces a novel muscle activation analysis based on surface electromyography (sEMG) signals to assess the muscle's after-fatigue condition. Previous studies have mainly focused on the before-fatigue and fatigue conditions. However, a comprehensive analysis of the after-fatigue condition has been overlooked.
arxiv
The Role of Inflammation in Depression and Fatigue
Frontiers in Immunology, 2019 Depression and fatigue are conditions responsible for heavy global societal burden, especially in patients already suffering from chronic diseases. These symptoms have been identified by those affected as some of the most disabling symptoms which affect ...
Chieh-Hsin Lee, F. Giuliani
semanticscholar +1 more source
A multi-modal MRI study of the central response to inflammation in rheumatoid arthritis
Nature Communications, 2018 Many diseases, such as rheumatoid arthritis, are characterized by a chronic inflammatory state, but it is not clear whether or how this affects the brain. Here, the authors show that the severity of on-going inflammation predicts altered functional brain
Andrew Schrepf +9 more
doaj +1 more source
Scientific Reports, 2022 Sleep and fatigue were investigated in aviation search and rescue, firefighting, emergency medical services and offshore transfer operations in 210 participants, for 21 days each, across 17 datasets in seven countries.
Adam Fletcher +4 more
doaj +1 more source
On Scaled Normal Stresses in Multiaxial Fatigue and Their Exemplary Application to Ductile Cast Iron
Applied Mechanics, 2022 The approaches used to calculate the fatigue life of components must inevitably consider multiaxial stresses. Compared to proportional loading, the calculation of nonproportional loading is particularly challenging, especially since different materials ...
Michael Wächter +7 more
doaj +1 more source
A numerical framework for simulating progressive failure in composite laminates under high-cycle fatigue loading [PDF]
, 2023 In this work, a recently proposed high-cycle fatigue cohesive zone model, which covers crack initiation and propagation with limited input parameters, is embedded in a robust and efficient numerical framework for simulating progressive failure in composite laminates under fatigue loading.
arxiv +1 more source
Muscle-like fatigue-resistant hydrogels by mechanical training
Proceedings of the National Academy of Sciences of the United States of America, 2019 Significance The combinational muscle-like properties including high fatigue resistance, high strength, superior compliance, and high water content are highly desirable for various applications of soft biomaterials such as hydrogels.
Shaoting Lin +3 more
semanticscholar +1 more source
Occupational and Environmental Medicine, 2003 Understanding how acute and chronic fatigue have an adverse impact on the health of workers Fatigue is a common complaint in the working population. Approximately 20% of the working population report symptoms that fall under the concept of fatigue.1 Other surveys have reported prevalence rates of fatigue varying from 7% to 45%, depending on the ...
F.J.H. van Dijk, G.M.H. Swaen
openaire +3 more sources
Fatigue Analysis of Threaded Components with Cd and Zn-Ni Anticorrosive Coatings
Metals, 2021 The influence of the electrodeposition of cadmium and zinc-nickel and the stress concentration effect on the fatigue behavior of AISI 4140 steel threaded components were studied. Axial fatigue tests at room temperature with a stress ratio of R = 0.1 were
Jefferson Rodrigo Marcelino dos Santos +3 more
doaj +1 more source