Results 271 to 280 of about 6,657,880 (307)

The Hypoplastic Model Expressed by Mean Stress and Deviatoric Stress Ratio

2018
Over the past several decades, hypoplasticity has been shwon to be a powerful tool to predict the non-linear behaviour of soils. Early hypoplastic models were developed from trial-and-error procedures and these models are usually expressed in a unique tensorial equation regarding the stress tensor. However, most models for fluid-like soil are expressed
Xuzhen He, Wei Wu, Dichuan Zhang, Jong Kim   +3 more
openaire   +1 more source

Stress Ratio Effects on Collapse of Compacted Clayey Sand

Journal of Geotechnical Engineering, 1991
A“double‐triaxial” test procedure similar to the double‐oedometer test was developed to determine the wetting‐induced collapse potential of soils subjected to anisotropic stress states. Based on a series of double‐triaxial tests performed on a slightly expansive clayey sand, it was established that the magnitude of volumetric strain resulting from a ...
E.C. Lawton, R.J. Fragaszy, J.H. Hardcastle   +2 more
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Evaluation of the Heterophil/Lymphocyte Ratio as a Measure of Stress in Chickens

Avian Diseases, 1983
The number of lymphocytes in chicken blood samples decreased and the number of heterophils increased in response to stressors and to increasing levels of corticosterone in the chicken feed. The ratio of heterophils to lymphocytes was less variable than the number of heterophil or lymphocyte cells, and the range of values for this ratio was greater than
W B, Gross, H S, Siegel
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Plasma ratio of ubiquinol and ubiquinone as a marker of oxidative stress

Molecular Aspects of Medicine, 1997
Oxidative stress is defined as a disturbance in the prooxidant-antioxidant balance in favor of the former and has been suggested to be a relevant factor in aging as well as in different pathological conditions, such as heart attack, diabetes, and cancer.
Y, Yamamoto, S, Yamashita
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Measurement of the effects of stress ratio and changes of stress ratio on fatigue crack growth rate in a quenched and tempered steel

International Journal of Fatigue, 1994
Abstract This paper describes a technique that enables fatigue crack growth rate to be determined for a range of stress ratios, R , using a single specimen. The procedure eliminates some of the scatter normally encountered when data are obtained from multiple specimens.
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Plant hormone regulation of abiotic stress responses

Nature Reviews Molecular Cell Biology, 2022
Po-Kai Hsu, Julian I Schroeder, Rainer Waadt   +2 more
exaly  

Reactive oxygen species signalling in plant stress responses

Nature Reviews Molecular Cell Biology, 2022
Sara I Zandalinas, Yosef Fichman, Frank Van Breusegem   +2 more
exaly  

On the Ratio of the Critical Shear Stresses

Journal of Applied Physics, 1951
A. J. Opinsky, R. Smoluchowski
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FOXO transcription factors as mediators of stress adaptation

Nature Reviews Molecular Cell Biology, 2023
Tobias B Dansen, Boudewijn M T Burgering
exaly  

362 Influence of stress ratio to stress concentration of hole

The Proceedings of Conference of Tokai Branch, 2007
Shingo KANAME, Minoru TAMIAKI
openaire   +1 more source