Results 31 to 40 of about 1,450 (264)
Journal of Materials Research and Technology, 2023 The in-situ investigation of microstructure evolution during friction stir welding (FSW) can provide very important theoretical guidance to control the microstructure and mechanical properties of the FSW joint.
X.C. Liu +4 more
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PLoS ONE, 2019 The improved split Hopkinson pressure bar (SHPB) was used to study the dynamic mechanical properties and failure characteristics of surrounding rock in deep rock mass engineering that is under high stress and affected by blasting excavation and other ...
Chun Wang +4 more
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Journal of Materials Research and Technology, 2021 Accumulative roll bonding (ARB) is a severe plastic deformation (SPD) technique that has been extensively used in a wide range of metals to improve their mechanical properties.
Omar Alejandro Velázquez-Carrillo +1 more
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Depth-sensing thermal stability of accumulative fold-forged nanostructured materials
Materials & Design, 2021 Accumulative fold-forging (AFF) as a newly developed severe plastic deformation (SPD) process based on the repetitive fold-forging steps is implemented for the production of the layered UFG (~200 nm) AA8006 alloy and AA8006-B4C nanocomposite (~35 nm, 10 ...
F. Khodabakhshi +4 more
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A probabilistic study on seismic induced accumulated plastic strain
, 2023 A linearization method based on the work of Nguyen [Analyse systématique du concept de comportement linéaire équivalent en ingénierie sismique, PhD., université Paris-Est; EDF; ESTP, Cachan (2017)] is extended in this paper. The method is based on the fitting of the relative acceleration transfer function of a linear SDOF oscillator on non-linear ...
Méric, Axel +4 more
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Dislocation accumulation at large plastic strains -- An approach to the theoretical strength of materials [PDF]
, 1999 The usual method of introducing engineers to the concept of dislocations and their role in plastic flow is to compare an estimate of the theoretical strength of solid (of order {micro}/30 where {micro} is the shear modulus) and the observed strength of either single crystals ({mu}/10{sup 4}) or practical engineering material such as structural steels ...
Embury, J. D., Han, K.
openaire +2 more sources
Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
FEBS Letters, EarlyView.Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee +7 more
wiley +1 more source
Laboratory Model Tests of Seismic Strain Response of Anti-Seismic Anchor Cables
Frontiers in Earth Science, 2022 Under the impact of seismic forces, the strain of conventional anchor cables tended to increase sharply in an instant, which could easily cause the anchor cables to fail due to stress overload.
Yan Wang +3 more
doaj +1 more source
FEBS Letters, EarlyView.Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley +1 more source
Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source