Results 21 to 30 of about 7,660,214 (363)

Optimizing the Density of Holes of EWT Solar Cells Taking Into Consideration Mechanical Aspects [PDF]

open access: yes, 2011
EWT solar cells start from drilled wafers with approximately 100 holes/cm2. These holes act as stress concentrators leading to a reduction in the mechanical strength of this type of wafers.
Alarcón Álvarez, Enrique   +4 more
core   +2 more sources

Residual Stress, Mechanical Properties, and Grain Morphology of Ti-6Al-4V Alloy Produced by Ultrasonic Impact Treatment Assisted Wire and Arc Additive Manufacturing

open access: yesMetals, 2018
Ultrasonic Impact Treatment (UIT) is an effective technique for surface refinement and residual stress reduction, which is widely used in welding. This study investigates UIT-assisted Wire and Arc Additive manufacturing (WAAM). The residual stress, grain
Yichong Yang   +6 more
semanticscholar   +1 more source

Maintaining proteostasis under mechanical stress

open access: yesEMBO Reports, 2021
Cell survival, tissue integrity and organismal health depend on the ability to maintain functional protein networks even under conditions that threaten protein integrity.
J. Höhfeld   +16 more
semanticscholar   +1 more source

Epigenetic mechanisms in stress and adaptation [PDF]

open access: yesBrain, Behavior, and Immunity, 2011
Epigenetic mechanisms are processes at the level of the chromatin that control the expression of genes but their role in neuro-immuno-endocrine communication is poorly understood. This review focuses on epigenetic modifications induced by a range of stressors, both physical and psychological, and examines how these variations can affect the biological ...
Mifsud, Karen R   +5 more
openaire   +3 more sources

Finite Element Analysis of an Electro-Mechanical Knee Loading Device [PDF]

open access: yes, 2016
The mechanical loading of knee is an effective regimen for treatment of bone related ailments like fractures, osteoarthritis, and osteoporosis [1–2]. Efficacy of knee loading is evident from the previous studies done on rodents and other small animals [3]
Sai Krishna Prabhala   +7 more
core   +1 more source

Destabilization of Indomethacin-Paracetamol Co-Amorphous Systems by Mechanical Stress

open access: yesPharmaceutics, 2023
Using co-amorphous systems (CAMS) has shown promise in addressing the challenges associated with poorly water-soluble drugs. Quench-cooling is a commonly used CAMS preparation method, often followed by grinding or milling to achieve a fine powder that is
Rong Di, Thomas Rades, Holger Grohganz
doaj   +1 more source

Whole Transcriptome Mapping Identifies an Immune- and Metabolism-Related Non-coding RNA Landscape Remodeled by Mechanical Stress in IL-1β-Induced Rat OA-like Chondrocytes

open access: yesFrontiers in Genetics, 2022
Background: Osteoarthritis (OA) is a common degenerative joint disease. The aims of this study are to explore the effects of mechanical stress on whole transcriptome landscape and to identify a non-coding transcriptome signature of mechanical stress ...
Jiaming Zhang   +8 more
doaj   +1 more source

Heterochromatin-Driven Nuclear Softening Protects the Genome against Mechanical Stress-Induced Damage

open access: yesCell, 2020
Summary Tissue homeostasis requires maintenance of functional integrity under stress. A central source of stress is mechanical force that acts on cells, their nuclei, and chromatin, but how the genome is protected against mechanical stress is unclear. We
Michele M. Nava   +14 more
semanticscholar   +1 more source

Stress Mechanisms and Metabolic Complications

open access: yesHormone and Metabolic Research, 2007
Stress can be defined as a state of threatened homeostasis or disharmony. An intricate repertoire of physiologic and behavioral responses is mobilized under stressful situations forming the adaptive stress response that aims to reestablish the challenged body equilibrium. The hypothalamic-pituitary-adrenal axis and the central and peripheral components
Kyrou, I., Tsigos, C.
openaire   +3 more sources

Mechanism of Oxidative Stress in Neurodegeneration [PDF]

open access: yesOxidative Medicine and Cellular Longevity, 2012
Biological tissues require oxygen to meet their energetic demands. However, the consumption of oxygen also results in the generation of free radicals that may have damaging effects on cells. The brain is particularly vulnerable to the effects of reactive oxygen species due to its high demand for oxygen, and its abundance of highly peroxidisable ...
Gandhi, S, Abramov, AY
openaire   +3 more sources

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