Results 11 to 20 of about 531,803 (269)
Biomechanical analysis of narrow dental implants for maxillary anterior rehabilitation [PDF]
Revista de Odontologia da UNESP, 2023 Introduction Narrow diameter implants biomechanics knowledge indicates safe dimensions for clinical use. Objective Purpose of the present study was biomechanically to compare regular and narrow diameter implants to support single implant-supported ...
Carolina dos Santos SANTINONI +5 more
doaj +1 more source
Autopolymerized poly(methyl methacrylate) reinforced with alumina nanoparticles [PDF]
Vojnosanitetski Pregled, 2021 Background/Aim. Mechanical properties, most significantly flexural strength of cold polymerized acrylic dental materials, used for denture reparation are lower compared to the equivalent hot polymerized materials.
Baloš Sebastian +6 more
doaj +1 more source
A Method for Comparing the Fatigue Performance of Forged AZ80 Magnesium
Metals, 2021 A closed die forging process was developed to successfully forge an automotive suspension component from AZ80 Mg at a variety of different forging temperatures (300 °C, 450 °C).
Andrew Gryguć +9 more
doaj +1 more source
Flexural strength and modulus of autopolimerized poly (methyl methacrylate) with nanosilica [PDF]
Vojnosanitetski Pregled, 2018 Background/Aim. Autopolymerized, or cold polymerized poly(methyl methacrylate) class of materials have a lower mechanical properties compared to hot polymerized poly(methyl methacrylate), due to a limited time of mixing before the polymerization process ...
Balos Sebastian +4 more
doaj +1 more source
Post-impact mechanical characterization of HMPE yarns
Acta Polytechnica, 2021 The present work evaluates the mechanical behaviour of High Modulus Polyethylene (HMPE) yarns after being impacted by sudden axial loads. The influence of loading conditions on the structural integrity of yarns is assessed by tensile, fatigue, and creep ...
Eduarda da Silva Belloni +2 more
doaj +1 more source
Mechanisms of stress in the brain [PDF]
Nature Neuroscience, 2015 The brain is the central organ involved in perceiving and adapting to social and physical stressors via multiple interacting mediators, from the cell surface to the cytoskeleton to epigenetic regulation and nongenomic mechanisms. A key result of stress is structural remodeling of neural architecture, which may be a sign of successful adaptation ...
Bruce S McEwen +6 more
openaire +3 more sources
Can the Biophilia Hypothesis Be Applied to Long-Duration Human Space Flight? A Mini-Review
Frontiers in Psychology, 2021 The International Space Station (ISS) has around 3–5 crew members on-board at all times, and they normally stay on the ISS for about 5–7months in duration. Since March 2020, 170 long-duration space missions have occurred on the ISS.
Brittany N. Neilson +5 more
doaj +1 more source
Part deflection and residual stresses in laser powder bed fusion of H13 tool steel
Materials & Design, 2021 This study aims at a comprehensive investigation of residual stresses in laser powder bed fusion processed H13 tool steel through experiment and part-level simulation.
Morteza Narvan +4 more
doaj +1 more source
Understanding the mechanisms of lung mechanical stress [PDF]
Brazilian Journal of Medical and Biological Research, 2006 Physical forces affect both the function and phenotype of cells in the lung. Bronchial, alveolar, and other parenchymal cells, as well as fibroblasts and macrophages, are normally subjected to a variety of passive and active mechanical forces associated with lung inflation and vascular perfusion as a result of the dynamic nature of lung function. These
Garcia, C. S. N. B. +5 more
openaire +6 more sources
Split sleeve cold expansion of AZ31B sheet: Microstructure, texture and residual stress
Materials & Design, 2020 Despite magnesium limited formability at room temperature, split sleeve hole cold expansion of AZ31B sheet was successfully implemented. Microstructural analysis showed greater hardness in the immediate vicinity of the notch, which was due to high ...
Sasan Faghih +3 more
doaj +1 more source