Results 261 to 270 of about 2,596,942 (309)

Natural Bioactive Compounds against Oxidative Stress: Dietary Polyphenols Strike Back

Endocrine, Metabolic & Immune Disorders - Drug Targets, 2023
Abstract: Oxidative stress is a major cellular and metabolic burden that can really alter cell life and become the base for disease onset and development. Many widespread pathologies can develop from an unresolved oxidative stress situation; thus, addressing this state is paramount for human health.
Arrigoni, Roberto, Cammarota, Francesco, Porro, Rosa, Cantore, Stefania, Dioguardi, Mario, Cazzolla, Angela Pia, De Leonardis, Francesco, Polimeno, Lorenzo, Zerman, Nicoletta, Di Cosola, Michele, Mastrangelo, Filiberto, Santacroce, Luigi, Ballini, Andrea   +12 more
openaire   +5 more sources

Back-stresses, image stresses, and work-hardening

Acta Metallurgica, 1973
Abstract A comparison is made between recently published theories on the plastic behaviour of dispersion-hardened alloys in which no plastic relaxation occurs. It is shown that Tanaka and Mori's(1) calculation is a rigorous lower bound for the hardening to be expected. Some new derivations are given for the mean strains in matrix and inclusions.
openaire   +1 more source

On the origin of the back stress in heterogeneous structure: intergranular residual stress and intragranular back stress

Acta Mechanica Sinica
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhang, Yong, Wang, Run-Zi, Hama, Takayuki, Zhang, Xian-Cheng, Jia, Yun-Fei, Tu, Shan-Tung   +5 more
openaire   +2 more sources

Stresses in sheets with backing

Journal of the Franklin Institute, 1975
Abstract A mathematical model of surface layers such as tilings, plasters and coatings is established in this paper. To solve the field equations analytically, use is made of a pertubation scheme which yields the influence of the “backing” on the elastic behavior of “the sheet”. As an application, an illustrative example is worked out and the results
openaire   +2 more sources

Back calculation of in-situ stress condition based on secondary stress measurements

The IV Nordic Symposium on Rock Mechanics and Rock Engineering - Proceedings, 2023
A large underground cavern design at a shallow depth requires reliable estimation of in-situ stress conditions. Geological conditions, topography, and tectonic activity influence the magnitude of the in-situ stresses. The objective of this paper is to predict and evaluate the in-situ stress state before the excavation of two pilot tunnels in a railway ...
Kriti Panthi, Roger Olsson, Eric Hegardt
openaire   +1 more source

Friction stress and back stress in cyclically deformed Ni3Ge single crystals

Materials Science and Engineering, 1988
Abstract Stress-strain hysteresis loops obtained from cyclic deformation of Ni3Ge single crystals under strain control were analyzed. The major component of the cyclic flow stress was found to be the friction stress. The back stress was responsible for, at most, several per cent of the cyclic flow stress.
H-R. Pak, J. Chu, M. Kato, D. P. Pope
openaire   +1 more source

Back Stress Solutions

The American Journal of Nursing, 1993
P. P., Mary Lawler Lewis
  +5 more sources

Stress relief investigation using creep model considering back stress in welded rotor

Journal of Constructional Steel Research, 2020
Abstract Welded ferritic steel rotors are a critical dynamic component of fossil-fired power plants. It is essential to investigate residual stress distribution in welded rotors and investigate methods to reduce residual stress for improving structural integrity.
Mengjia Hu, Kejian Li, Shanlin Li, Zhipeng Cai, Jiluan Pan   +4 more
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Causal Relation of Psychical Stress to Acute Back Pain

Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca, 2018
PURPOSE OF THE STUDY There s a known relation between the chronical back-pain-syndrome and psychical problems. We suppose a direct causality between acute stress and onset of the backpain syndrome. MATERIAL AND METHODS A prospective cohort-study (IV/2014 - VIII/2014) of patients who came to our emergency department with acute backpain-syndrome, with no
L, Hajnovic, S, Knöller, L, Schütz
openaire   +2 more sources

The back stress in high temperature deformation

Acta Metallurgica, 1969
Abstract The applicability of the following strain rate equation to high temperature deformation is examined. e=|gf s exp ( −ΔH 0 KT ) exp ( vτ − τB] KT ) Here e is the tensile or compressive strain rate; φs is a structure factor; ΔH0 is the activation enthalpy in the absence of effective stress; v is the activation ...
openaire   +1 more source