Results 51 to 60 of about 509,711 (305)
Network Localization of Fatigue in Multiple Sclerosis
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Fatigue is among the most common symptoms and one of the main factors determining the quality of life in multiple sclerosis (MS). However, the neurobiological mechanisms underlying fatigue are not fully understood. Here we studied lesion locations and their connections in individuals with MS, aiming to identify brain networks ...
Olli Likitalo +12 more
wiley +1 more source
Fatigue Limit Estimation Based on Dissipated Energy of Butt Laser-Welded Joints
Engineering ProceedingsThis study established a rapid estimation method for the fatigue limit of laser welds of aluminum alloys in order to optimize welding conditions, an important factor in ensuring the safety and reliability of laser welding.
Takumi Yamamoto +5 more
doaj +1 more source
Effect of orientation of small defects on fatigue limit of steels
MATEC Web of Conferences, 2014 In order to clarify the effect of defect orientation on the fatigue limit of three types of steels; JIS-S15C, JIS-S45C and JIS-SNCM439, a small semi-circular slit was introduced into the surface of a round specimen. The slits were tilted at 0∘, 30∘ or 60∘
Lorenzino Pablo +3 more
doaj +1 more source
A crack-like notch analogue for a safe-life fretting fatigue design methodology [PDF]
, 2003 Various analogies have recently been proposed for comparing the stress fields induced in fretting fatigue contact situations, with those of a crack and a sharp or a rounded notch, resulting in a degree of uncertainty over which model is most appropriate ...
Ciavarella, M.
core +1 more source
Frailty Exacerbates Disability in Progressive Multiple Sclerosis
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background To evaluate frailty in severe progressive multiple sclerosis (PMS) and to investigate the underlying mechanisms. Methods This prospective, cross‐sectional, multicenter study enrolled a late severe PMS group requiring skilled nursing (n = 53) and an age, sex, and disease duration‐matched control PMS group (n = 53).
Taylor R. Wicks +10 more
wiley +1 more source
Fracture and Structural Integrity, 2019 In fatigue life, surface integrity perform a major role to determine the fatigue lifetime. It could differ greatly among specific cases even for the same solicitations.
Khadija Kimakh +4 more
doaj +3 more sources
PREDICTION OF FATIGUE LIFE BASED ON FUZZY MATHEMATICS AND GREY SYSTEM THEORY
Jixie qiangdu, 2023 The traditional fatigue life prediction method Miner theory ignored the damage caused by stress below the fatigue limit to the component, resulting in a large error in fatigue life prediction.
XU RongXia +3 more
doaj
Study on Fatigue Life of Fractured Rock Under Constant Amplitude Cyclic Loading
Earth Sciences Research Journal, 2018 The electro-hydraulic servo loading system was applied to make cyclic loading tests for fractured rock-like specimens. According to the results of the fatigue test, the power function model was used to fit and analyze the test data, and the fitting ...
Run Li, Wenbin Jian, Rongtao Kang
doaj +1 more source
Solution to the problem of the poor cyclic fatigue resistance of bulk metallic glasses [PDF]
, 2009 The recent development of metallic glass-matrix composites represents a particular milestone in engineering materials for structural applications owing to their remarkable combination of strength and toughness.
Byrne +7 more
core +2 more sources
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective This study aims to identify both fluid and neuroimaging biomarkers for CSF1R‐RD that can inform the optimal timing of treatment administration to maximize therapeutic benefit, while also providing sensitive quantitative measurements to monitor disease progression.
Tomasz Chmiela +13 more
wiley +1 more source