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Advanced Science, EarlyView.This study identifies platelet‐derived extracellular vesicles as key immunometabolic regulators in COVID‐19. The delivery of tRF‐His‐GTG‐1 to neutrophils activates TLR8mTOR signaling, disrupts lipophagy, and amplifies NET‐mediated inflammation. Importantly, targeting this axis restores neutrophil homeostasis, offering a potential therapeutic strategy ...
Tsai‐Ling Liao +5 more
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Ecosystem‐Centered Robot Design: Toward Ecoresorbable Sustainability Robots (ESRs)
Advanced Science, EarlyView.Robots exploring natural ecosystems can support monitoring and conservation, but must adopt ecosystem‐centered design to avoid pollution, waste, and damage. This review proposes guidelines for co‐designing ecoresorbable sustainability robots (ESRs), uniting materials, robotics, and ecological contexts in a single framework.
Tülin Yılmaz Nayır +4 more
wiley +1 more source
High cycle thermal fatigue FATHER experiment: non destructive and metallographic examinations
, 2011 S. Courtin +6 more
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On high-cycle fatigue of 316L stents
Computer Methods in Biomechanics and Biomedical Engineering, 2012This paper deals with fatigue life prediction of 316L stainless steel cardiac stents. Stents are biomedical devices used to reopen narrowed vessels. Fatigue life is dominated by the cyclic loading due to the systolic and diastolic pressure and the design against premature mechanical failure is of extreme importance.
Olga, Barrera +4 more
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Specific features of high‐cycle and ultra‐high‐cycle fatigue
Fatigue & Fracture of Engineering Materials & Structures, 2002ABSTRACT Several specific features of high‐cycle fatigue (HCF) and ultra‐high‐cycle fatigue (UHCF) are discussed both on the basis of direct experimental results and on the basis of speculations extrapolating HCF data to the UHCF regions. The following points are dealt with: (i) Extent and distribution of cyclic plastic deformation. (ii) Sensitivity of
P. LUKÁŠ, L. KUNZ
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Stress-Based Fatigue Analysis High Cycle Fatigue
2012So far, we have examined fatigue from a phenomenological point of view, describing the sequence of events that take place in metals from the early submicroscopic damage that precedes microcracks formation and eventually leads to the macrocrack generation.
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1994
Kovar®, an austenitic Fe-29Ni-17Co alloy, was tested in monotonic tension and axial fatigue at stress ratios (minimum stress/maximum stress) of R= -1 and 0.1. Two annealed microstructures, having grain sizes of 14 and 65 μm, were tested. The strainhardening exponent of tensile flow curves gradually increased with strain, and then remained constant at a
JA Wasynczuk +3 more
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Kovar®, an austenitic Fe-29Ni-17Co alloy, was tested in monotonic tension and axial fatigue at stress ratios (minimum stress/maximum stress) of R= -1 and 0.1. Two annealed microstructures, having grain sizes of 14 and 65 μm, were tested. The strainhardening exponent of tensile flow curves gradually increased with strain, and then remained constant at a
JA Wasynczuk +3 more
openaire +1 more source
Fatigue & Fracture of Engineering Materials & Structures, 2001
High‐cycle fatigue (HCF) failures in aircraft engines are attributed to material damage states, created during processing or by in‐service loading and environmental conditions, and then propagated to failure by HCF loading. The loading configuration experienced by aircraft engine turbine blades consists of an axial load caused by the centrifugal ...
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High‐cycle fatigue (HCF) failures in aircraft engines are attributed to material damage states, created during processing or by in‐service loading and environmental conditions, and then propagated to failure by HCF loading. The loading configuration experienced by aircraft engine turbine blades consists of an axial load caused by the centrifugal ...
openaire +1 more source
HIGH-CYCLE SPRING FATIGUE TEST MACHINE
Experimental Techniques, 1993A fatigue-test machine for simultaneous testing of up to 12 compression springs is described. The test machine successfully generates fatigue failure data in a short time at low cost. A cumulative probability plot is shown to illustrate the results of one of the tests run on this machine.
J.R. Michler, S.R. Bhonsle
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