Results 1 to 10 of about 3,042,639 (351)

Parasite stress predicts offspring sex ratio. [PDF]

open access: yesPLoS ONE, 2012
In this study, I predict that the global variation of offspring sex ratio might be influenced in part by the level of parasite stress. From an energetic standpoint, higher gestational costs of producing a male offspring could decrease male births in a ...
Madhukar Shivajirao Dama
doaj   +4 more sources

Stress-Insensitive Resonant Graphene Mass Sensing via Frequency Ratio

open access: yesSensors, 2019
Herein, a peripherally clamped stretched square monolayer graphene sheet with a side length of 10 nm was demonstrated as a resonator for atomic-scale mass sensing via molecular dynamics (MD) simulation.
Xing Xiao   +3 more
doaj   +3 more sources

Fatigue and Corrosion Fatigue of 18Ni Maraging Steel [PDF]

open access: yesArchives of Metallurgy and Materials, 2021
This study focused on the fatigue and corrosion fatigue of maraging steel 18Ni (250). The 18Ni (250) samples were tested for axial fatigue in air and 3.5% NaCl solution.
Zhu Yongmei   +6 more
doaj   +1 more source

Effect of Stress Ratio(R) and Stress Concentration Factor (Kt) on Fatigue Properties of WSTi6211 Titanium Alloy [PDF]

open access: yesMATEC Web of Conferences, 2020
In this paper, the author studied the effects of different stress ratios(R) and stress concentration factors(Kt) on the fatigue properties of WSTi6211 titanium alloy.Through S-N curve, the author obtained the fatigue ultimate strength of the material ...
Fang Hao   +6 more
doaj   +1 more source

Investigation of Fatigue Crack Growth in TA2 Cruciform Specimen with an Inclined Crack, Considering Stress Ratio and Biaxial Load Ratio

open access: yesCrystals, 2022
The biaxial fatigue crack growth behavior of commercial pure titanium TA2 of cruciform specimens with different crack inclination angles (β = 90°, 60°, 45°) under various biaxial load ratios (λ = 0, 0.5, 1) and different stress ratios (R = 0, 0.1, 0.3 ...
Wen-Jie Bao   +4 more
doaj   +1 more source

Multiple linear regression parameters for determining fatigue-based entropy characterisation of magnesium alloy

open access: yesFracture and Structural Integrity, 2022
This paper presents the development of the multiple linear regression approach based on the stress ratio and applied load that was assessed using entropy generation.
M.A. Fauthan   +3 more
doaj   +1 more source

Creep-recovery behaviors of articular cartilage under uniaxial and biaxial tensile loadings

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Creep deformation in cartilage can be observed under physiological loads in daily activities such as standing, single-leg lunge, the stance phase of gait.
Lilan Gao   +11 more
doaj   +1 more source

Effect of High-Temperature Pavement Paving on Fatigue Durability of Bearing-Supported Steel Decks

open access: yesApplied Sciences, 2020
Orthotropic steel deck (OSD) is a better choice for urban bridges and the replacement of damaged concrete slabs. Gussasphalt concrete (GAC) is usually adopted as the asphalt surfacing; however, the paving temperature of GAC is high, which will affect the
Qiudong Wang   +3 more
doaj   +1 more source

Stress Dilatancy of Sand at Small Stress Ratio States

open access: yesSoils and Foundations, 1990
The validity of the stress dilatancy equation for representing the small stress ratio state response of sand is examined. Test equipment development and procedures that were followed aimed at precise loading control and reliable monitoring of small displacements and volume changes.
Dawit Negussey, Y.P. Vaid
openaire   +2 more sources

Experiments of creep rate for over-consolidated clay under plain strain condition and a simple correlation

open access: yesAll Earth, 2021
Soft foundations of high embankments exhibit significant time-dependent effect on deformation in decades after construction, and there is a lack of simple method for predicting the creep rate of over-consolidated soft clay under plain strain condition ...
Yuzhou Hou   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy