Results 141 to 150 of about 15,317,414 (265)

Simulation of grinding SiCf/SiC ceramic matrix composites with single particle of spherical grinding head

open access: yesJin'gangshi yu moliao moju gongcheng
ObjectivesSiCf/SiC ceramic matrix composites were continuous fiber-reinforced materials that had attracted extensive attention and application in fields such as automotive and aerospace due to its high strength, high hardness and high-temperature ...
WU Yizhou, ZHANG Jingqiang, QU Ligang
doaj  

Improved Deformability of Co‐Free Medium Entropy Oxides by Controlled Entropy Destabilization

open access: yesAdvanced Science, EarlyView.
Controlled entropy destabilization activates defect‐mediated plasticity in Co‐free (CuMgNiZn)O by promoting pre‐existing Cu‐rich secondary phases that serve as defect sources. Temperature‐dependent dislocation activity evolves from limited motion at room temperature to extensive glide and stacking‐fault formation at 600 °C, enabling improved plasticity
Chang Liu   +10 more
wiley   +1 more source

Architecting Anisotropic Force‐Responsive Bidirectional High‐Contrast Three‐Color Fluorescence Switches via Effective Molecular Modulation for High‐Security Information Storage

open access: yesAdvanced Science, EarlyView.
Synergistically integrating substituent variation and positional isomerism in molecular engineering affords 13 rare tricolored mechanofluorochromic luminogens, and 3 exceedingly scarce force‐triggered bidirectional high‐contrast three‐color fluorescence switches are screened out via a three‐step protocol.
Yijie Zou   +7 more
wiley   +1 more source

Decoupling Stable Cyclic Deformation From Defect Accumulation in Metals

open access: yesAdvanced Science, EarlyView.
Introducing amorphous nanoparticles into a metal matrix enables a cyclic deformation regime where strain hardening and defect accumulation are decoupled. These nanoparticles act as dislocation sinks and undergo reversible shear transformations, sustaining microstructural stability over millions of cycles.
Chenjun Ye   +9 more
wiley   +1 more source

Gut Microbiota‐Derived Indole‐3‐Acetaldehyde Contributes to the Disease‐Alleviating Effects of Kurarinone in Experimental Autoimmune Encephalomyelitis

open access: yesAdvanced Science, EarlyView.
Kurarinone ameliorates EAE via the gut microbiota‐indole‐3‐acetaldehyde‐AhR axis. Kurarinone reshapes gut microbiota and increases Akkermansia muciniphila, which promotes intestinal indole‐3‐acetaldehyde production. Indole‐3‐acetaldehyde crosses the intestinal barrier, activates AhR in CD4+ T cells, upregulates SOCS1/3, inhibits JAK2 and STAT3/4 ...
Xinyan Han   +11 more
wiley   +1 more source

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