Results 21 to 30 of about 181,033 (264)

Simulation of relaxation time and storage modulus for carbon nanotubes-based nanocomposites

open access: yesJournal of Materials Research and Technology, 2021
This paper develops two equations for relaxation time and storage modulus of biopolymer nanocomposites at unlike frequency ranges. The relaxation time is correlated to zero complex viscosity, yield stress, K constant and power-law index. In addition, the
Yasser Zare, Kyong Yop Rhee
doaj   +1 more source

Study on Residual Stress Relaxation Behaviour and Modelling of Shot-Peened TC4 Titanium Alloy

open access: yesMetals
Residual stress induced by shot peening (SP) is inherently unstable. Stress relaxation has attracted widespread attention, and related research has been carried out.
Hongwei Zhang   +4 more
doaj   +1 more source

Effect of Chemical Treatment on the Stress Relaxation of Wood

open access: yesChemical Engineering Transactions, 2017
In order to analyze the mechanical relaxation phenomenon of copper plated poplar veneer multilayer composite, the multilayer composite materials with different structures are taken as the experimental object, the effect of temperature, structure and ...
Liangsong Cheng, Mingbin Liu
doaj   +1 more source

Stress Relaxation Properties and Microscopic Deformation Structure in Bending of the C7025 and C7035 Alloy

open access: yesCrystals, 2018
Stress relaxation tests in cantilever bending were performed on the C7025 and C7035 alloys at 298 K and 393 K, respectively. The effect of stress-relief treatments on stress relaxation properties was investigated.
Xiangpeng Xiao   +4 more
doaj   +1 more source

Investigating How Auditory and Visual Stimuli Promote Recovery After Stress With Potential Applications for Workplace Stress and Burnout: Protocol for a Randomized Trial

open access: yesFrontiers in Psychology, 2022
BackgroundWork-related stress is one of the top sources of stress amongst working adults. Relaxation rooms are one organizational strategy being used to reduce workplace stress.
Kunjoon Byun   +13 more
doaj   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

Experimental study on rheological properties of serrate discontinuity under stepwise loading

open access: yesScientific Reports
Serrate discontinuity creep and stress relaxation tests are conducted to analyze the differences and relationships between creep, relaxation, and long-term strength using the same normal stress and shear stress levels.
Guang-hui Tian   +5 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Study of the stress relaxation resistance and microstructural evolution of a Cu–Ni–Si alloy strip

open access: yesJournal of Materials Research and Technology
The stress relaxation resistance of a Cu–Ni–Si alloy strip after 48 h of initial loading stress of 80% σ0.2 at 125 °C was studied. The stress relaxation curve was fitted using a model. By employing EBSD, TEM, and other techniques, this study examined the
Yanmin Zhang   +6 more
doaj   +1 more source

Stress relaxation behavior of sandstone considering thermal-damage after loading–unloading histories [PDF]

open access: yesAIP Advances
The time-dependent behavior of rocks is crucial for the long-term stability of geotechnical structures, particularly concerning stress relaxation under coupled thermo-mechanical conditions.
Cunquan Wu   +7 more
doaj   +1 more source

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