Results 241 to 250 of about 4,922,109 (351)

Programming Defects and Cavities into Colloidal Crystals Engineered With DNA

open access: yesAdvanced Materials, EarlyView.
Seed‐mediated crystallization is adapted for colloidal crystals to design cavities and defect architectures through chemically programmed DNA sequences and appropriate seed particle geometry. This synthetic approach combines tenets from both atomic and colloidal crystallization to deliberately control defect formation in superlattices and enables the ...
Rachel R. Chan   +13 more
wiley   +1 more source

Probabilistic topological spaces

open access: yesJournal of Mathematical Analysis and Applications, 1971
openaire   +3 more sources

Skeletal High‐Strength Nanoporous Copper and Metamaterials: The Hakka Tulou Design Heritage

open access: yesAdvanced Materials, EarlyView.
Inspired by the Hakka Tulou walls, skeletal nanoporous copper is fabricated via a two‐phase MnCu precursor and controlled dealloying. This strategy achieves high strength (200 MPa) and large specific surface area (27.6 m2/g), and extends to lattice metamaterials with hierarchical porosity, offering new design pathways for multifunctional metal ...
Haozhang Zhong   +8 more
wiley   +1 more source

On paracompactness of topological spaces

open access: yesProceedings of the Japan Academy, Series A, Mathematical Sciences, 1960
Hanai, Sitiro, Okuyama, Akihiro
openaire   +3 more sources

Vector Ekeland’s variational principle in an F-type topological space

open access: yesMath. Methods Oper. Res., 2008
Guang-Ya Chen, Xiaoqi Yang, Hui Yu
semanticscholar   +1 more source

Topological Dirac-vortex modes in a three-dimensional photonic topological insulator. [PDF]

open access: yesNat Commun
Yan B   +10 more
europepmc   +1 more source

Gel‐Gel Interface Engineering for the Synthesis of Anisotropic Hydrogels with Designable Polymer Orientations

open access: yesAdvanced Materials, EarlyView.
This study reports that when a gel‐gel interface is intentionally introduced into a hydrogel via two‐step polymerization, the polymer networks near the interface spontaneously align perpendicular to it. By employing a photo‐initiator system to spatially control the gel‐gel interface, anisotropic hydrogels with programmable orientations of polymer ...
Tomohiro Takahashi   +2 more
wiley   +1 more source

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