Results 91 to 100 of about 283,214 (276)

Linear programs in topological vector spaces

open access: yesJournal of Mathematical Analysis and Applications, 1972
Versions of linear programming in abstract spaces have been formulated by Duffin [5], Hurewicz [8], Kretschmer [IO], Fan [6], and Ben-Israel, Charnes, and Kortanek (BCK) [2, 31. In this paper, yet another, rather geometric, formulation of linear programming is presented in which the duality theorem of classical linear programming holds almost verbatim (
openaire   +3 more sources

Room‐Temperature Multiferroic Liquids: Ferroelectric and Ferromagnetic Order in a Hybrid Nanoparticle–Liquid Crystal System

open access: yesAdvanced Materials, EarlyView.
A hybrid fluid combining ferrimagnetic nanoplatelets and a ferroelectric nematic displays coexisting magnetization and polarisation at room temperature. This self‐assembled multiferroic shows strong magnetoelectric effect and nonlinear optical response, offering a soft, reconfigurable platform for next‐generation sensing, actuation, and photonic ...
Hajnalka Nádasi   +11 more
wiley   +1 more source

Advances and Strategies in Enhancing mRNA Cancer Vaccines

open access: yesAdvanced Materials, EarlyView.
Messenger RNA (mRNA) vaccines offer a powerful approach for cancer immunotherapy, but their clinical impact remains limited by delivery challenges and suboptimal immune activation. This review discusses key biological barriers and design strategies—including structural optimization, immunomodulation, organ targeting delivery, and advanced nanocarriers ...
Miao Zhang   +4 more
wiley   +1 more source

Spatial Control of Chiral Self‐Assembly and Lithographic Applications in Liquid Crystal Polymer Network

open access: yesAdvanced Materials, EarlyView.
This work demonstrates a strategy to spatially control supramolecular chirality by leveraging spontaneous twist self‐assembly in liquid crystal materials. It is generated by periodic zigzag line defects that define alternating enantiomeric domains, stabilized by a polymer network. This approach enables precise defect engineering, tunable chirality, and
Changjae Lee   +5 more
wiley   +1 more source

IF topological vector spaces [PDF]

open access: yesNotes on Intuitionistic Fuzzy Sets, 2018
Moumita Chiney, Syamal Kumar Samanta
openaire   +1 more source

Interface‐Induced Stability of Nontrivial Topological Spin Textures: Unveiling Room‐Temperature Hopfions and Skyrmions

open access: yesAdvanced Materials, EarlyView.
The first room‐temperature, zero‐field observation of stable skyrmion–hopfion spin textures in EuS─Bi2Se3─EuS trilayers is reported. Combining Lorentz TEM imaging and micromagnetic modeling, the authors unveil how interfacial Dzyaloshinskii–Moriya interaction and geometric confinement stabilize these multidimensional topological states.
Ferhat Katmis   +11 more
wiley   +1 more source

Photocatalytic Performance Enhancement Using External Magnetic Fields ‐ A Review

open access: yesAdvanced Materials Interfaces, EarlyView.
The application of external magnetic fields in photocatalysis is reviewed, focusing on theoretical mechanisms such as Lorentz force, spin polarization, and radical pairs. Strategies for performance enhancement and corresponding experimental setups are discussed.
Pengsheng Liu, Xiaoan Mao
wiley   +1 more source

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