Results 71 to 80 of about 19,463 (248)

Spike‐Embedded Nanocatalysts via Metal‐Directed Carbonization for Highly Efficient and Robust Semi‐Hydrogenation

open access: yesAdvanced Science, EarlyView.
A metal‐directed carbonization strategy transforms hierarchical organic microspheres into spiky carbon catalysts with Pd nanoparticles embedded at the tips. This approach resolves the activity‐stability trade‐off, achieving exceptional poison resistance in semi‐hydrogenations, offering a versatile, scalable platform for designing high‐performance ...
Yintao Li   +9 more
wiley   +1 more source

A New Method to Characterize the Structured Tessellation Surface

open access: yes, 2013
Tessellated structure surface has been widely used for engineering surface. However, comprehensive characterization method for tessellated structure surface does not exist.
Li, Tukun   +3 more
core   +1 more source

Dominant Shi regions with a fixed separating wall: bijective enumeration [PDF]

open access: yes, 2014
We present a purely combinatorial proof by means of an explicit bijection, of the exact number of dominant regions having as a separating wall the hyperplane associated to the longest root in the m-extended Shi hyperplane arrangement of type A and ...
Conflitti, Alessandro, Mamede, Ricardo
core   +1 more source

Shoveliteratura triangula Shi, Bian & Change 2011

open access: yes, 2020
Shoveliteratura triangula Shi, Bian & Chang, 2011 (Fig. 5) Shi, F.-M., Bian & Y.-L. Chang. 2011. Zootaxa 2981:38 http:// orthoptera.speciesfile.org/urn:lsid: Orthoptera.speciesfile.org:TaxonName:13748 Material examined. 1♂ 4♀.
Mao, Shaoli   +4 more
core   +1 more source

Unraveling the Power of Disorder: A Bioinspired Cuttlebone Structure With Superior Strength, Energy Absorption and Isotropy

open access: yesAdvanced Science, EarlyView.
Cuttlebone‐inspired architected metamaterials introduce controlled structural disorder to simultaneously enhance strength, energy absorption, and compressive stability. Tunable disorder suppresses shear anisotropy, outperforms periodic lattices, and establishes discrete randomness as a robust route to high‐performance lightweight mechanical ...
Zengqin Shi   +7 more
wiley   +1 more source

Rejuvenated Amorphous Alloys: Processing Methods, Microstructures and Mechanical Properties

open access: yesAdvanced Science, EarlyView.
Three rejuvenation methods – mechanical and thermal rejuvenation, and other rejuvenation routes such as ultrasonic processing – can be used to modify structures of glassy alloys, especially atomic clusters, and therefore enhances plasticity and activates work‐hardening behaviors.
Can Yang   +10 more
wiley   +1 more source

China's New Social Security System in Making: Problems and Prospects [PDF]

open access: yes, 2007
China’s welfare regime has been historically characterized by its structural arrangement, distinguishing itself from that of many other countries. The major difference lies in the efforts made by the Chinese government to build up a social safety-net ...
Feng, Yi   +3 more
core   +1 more source

Large Temperature‐invariant Anomalous Nernst Effect in Non‐collinear Antiferromagnet Mn3Pt

open access: yesAdvanced Science, EarlyView.
Based on the noncollinear antiferromagnetic Mn3Pt thin films, the composition‐tunable Mn‐3d orbital states directly govern the Berry curvature. As a result, a giant and temperature‐invariant anomalous Nernst coefficient of 0.71 µV/K is achieved under Mn‐rich conditions.
Pengwei Gong   +16 more
wiley   +1 more source

Stress Accumulation Induced by Ion Exchange for Synchronous Modulation of Mode and Wavelength in Microlasers

open access: yesAdvanced Science, EarlyView.
This work demonstrates a paradigm‐shifting strategy to simultaneously achieve broadband wavelength tunability and single‐mode control within a single perovskite microwire structure. Using a facile heating‐assisted solid–solid anion‐exchange strategy, we synthesized phase‐pure CsPbClxBr3‐x microwires that exhibit the widest reported continuous lasing ...
Bingwang Yang   +7 more
wiley   +1 more source

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