Results 21 to 30 of about 875,896 (317)
Journal of Natural Fibers, 2017 The chemical, physical and thermal properties of a new lignocellulosic fiber from Brazil (Imperata brasiliensis) were examined by SEM, chemical composition, XRD, FTIR, and TGA.
Kelly Cristina Coelho de Carvalho Benini +4 more
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Frontiers in Physiology, 2016 The aim of this study was to evaluate stress markers, mood states and sleep indicators in high-level swimmers during a major 7-days competition according to the outcomes. Nine swimmers (6 men and 3 women (age: 22 ± 2 years and 22 ± 4 years, respectively)
MOUNIR eCHENNAOUI +10 more
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Application research on 5G technology in fatigue test of full-scale aircraft
Hangkong gongcheng jinzhan, 2023 With the development of aircraft demand, and emerging of new material and new process, the test and validation technology of aircraft structure strength will also face new challenges.
LIU Bing, ZHANG Jianfeng, MU Bin
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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
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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
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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
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Corrosion Fatigue Crack Growth Studies on Pressure Vessel and Piping Steels in Water Environment
Archives of Metallurgy and Materials, 2017 Corrosion fatigue crack growth studies were conducted on eccentrically-loaded single edge notch tension specimens made of SA 333 Gr. 6 and SA 516 Gr. 70 carbon steels in water environment. The experiments were conducted using a ±250 kN capacity Universal
Mathew N.M. +3 more
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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
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