Results 71 to 80 of about 3,730,308 (380)

Three HCF Models for Strain Fatigue Life of Welded Pipes in Austenitic Stainless Steel [PDF]

open access: yes, 2015
Fatigue bending tests have been performed on welded pipes made from an austenitic stainless steel. Four types of loading were used: 1) constant amplitude, 2) a load expected at pressure vessel environment, 3) a Gaussian load, and 4) a specially ...
Anderson, Andreas   +4 more
core   +1 more source

Determination of fatigue limit of polymeric composites in fully reversed bending loading mode using self-heating effect

open access: yesJournal of composite materials, 2018
In this paper, the fatigue limit in fibre-reinforced polymeric composites loaded in the fully reversed bending loading mode is investigated by using the self-heating effect occurring during such a type of testing.
A. Katunin, D. Wachla
semanticscholar   +1 more source

Performance of Composite Endpoints Defining Progression Independent of Relapse Activity in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The characteristics and utility of composite progression independent of relapse activity (cPIRA; worsening on the Expanded Disability Status Scale [EDSS], or 9‐Hole Peg Test, or Timed 25‐Foot Walk Test) were evaluated as an endpoint in relapsing multiple sclerosis (RMS) trials using the ENSEMBLE (NCT03085810) and pooled OPERA I/II ...
Ludwig Kappos   +11 more
wiley   +1 more source

Timing and Predictive Value of Clinical Conditions Preceding Multiple Sclerosis in the UK Biobank

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Multiple sclerosis (MS) patients often experience a higher incidence of clinical conditions before diagnosis, suggesting a prodromal phase. However, their predictive value and temporal trajectories remain underexplored. We investigated these aspects using the large UK Biobank's population‐based cohort, which provided clinical ...
Andrea Nova   +5 more
wiley   +1 more source

Remaining Burden of Spinal Muscular Atrophy Among Treated Patients: A Survey of Patients and Caregivers

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinal muscular atrophy (SMA) significantly impacts motor function. This study aimed to assess the persistent burden and unmet needs among currently treated patients with SMA and their caregivers. Methods Two complementary web‐based surveys were distributed in August 2024 among patients with SMA and their caregivers.
Julie A. Parsons   +8 more
wiley   +1 more source

Coatings decrease metal fatigue failure [PDF]

open access: yes, 1969
Metal test specimens were coated with suitable materials to limit the rate of attack of fresh metal surfaces by the atmosphere. The fatigue properties of coated metals were superior to those which were uncoated and approached the properties observable in
Sumsion, H. T.
core   +1 more source

Criticality of porosity defects on the fatigue performance of wire + arc additive manufactured titanium alloy [PDF]

open access: yes, 2019
This study was aimed at investigating the effect of internal porosity on the fatigue strength of wire + arc additive manufactured titanium alloy (WAAM Ti-6Al-4V).
Awd, Mustafa   +6 more
core   +2 more sources

Discovery and Treatment of Action Potential‐Independent Myotonia in Hyperkalemic Periodic Paralysis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Hyperkalemic periodic paralysis (hyperKPP) is characterized by attacks of transient weakness. A subset of hyperKPP patients suffers from transient involuntary contraction of muscle (myotonia). The goal of this study was to determine mechanisms causing myotonia in hyperKPP.
Chris Dupont   +4 more
wiley   +1 more source

Erosion of metals by multiple impacts with water [PDF]

open access: yes, 1971
Investigation determines - relation between impact velocity and minimum number of impacts producing visible erosion, relation between high frequency fatigue stresses and number of cycles to failure, water-hammer stresses relation to high frequency ...
Rudy, S. L., Thiruvengadam, A.
core   +1 more source

Multi-centre parallel arm randomised controlled trial to assess the effectiveness and cost-effectiveness of a group-based cognitive behavioural approach to managing fatigue in people with multiple sclerosis [PDF]

open access: yes, 2010
(provisional) Background Fatigue is one of the most commonly reported and debilitating symptoms of multiple sclerosis (MS); approximately two-thirds of people with MS consider it to be one of their three most troubling symptoms.
A Bandura   +83 more
core   +5 more sources

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