Results 131 to 140 of about 24,034,047 (331)

Traces of Ternary Relations Based on Bandler–Kohout Compositions

open access: yesMathematics
Recently, we have introduced and studied all possible four-point compositions (one degree of freedom) and five-point compositions (two degrees of freedom) of ternary relations in analogy with the usual composition of binary relations.
Lemnaouar Zedam   +2 more
doaj   +1 more source

Rapid Diagnostics of Reconfigurable Intelligent Surfaces Using Space‐Time‐Coding Modulation

open access: yesAdvanced Functional Materials, EarlyView.
A fast reconfigurable‐intelligent‐surface (RIS) diagnostics method is proposed based on spatio‐temporal modulation with orthogonal codes. Theoretical analysis demonstrates a clear distinction in code channel power between normal and faulty elements. Simulations validate its feasibility under high fault ratios and varying receiving angles.
Yi Ning Zheng   +7 more
wiley   +1 more source

Metal‐Organic Nanosheet Gels: Hierarchically Porous Materials for Selective Loading and Differential Release

open access: yesAdvanced Functional Materials, EarlyView.
A suspension of metal‐organic nanosheets was centrifuged to form self‐healing gels with a hierarchically porous structure. The prepared gels were used to selectively capture small molecules from solutions and differentially release them based on their size and charge. Abstract Metal‐organic nanosheets (MONs) are intrinsically porous 2D materials with a
Jiangtian Tan, Jonathan A. Foster
wiley   +1 more source

The economic mathematization: a bibliometric analysis

open access: yesAtlantic Review of Economics, 2018
The aim of this paper is to present data to verify the process of mathematization in economic theory. For this we used two representative samples from three of the most influential academic journals in the years 1955-56-57 and the years 2015-16-17.
openaire   +3 more sources

Ultrafast Transient Absorption Studies of the Dynamics of Free and Coulombically Trapped Polarons in Doped Conjugated Polymers

open access: yesAdvanced Functional Materials, EarlyView.
Transient absorption measurements of doped conjugated polymer films show that small dopant ions create both free and Coulomb‐trapped polarons regardless of polymer morphology, but large dodecaborane‐based dopant ions create only free polarons even though the large ions cause the films to be more disordered.
Eric C. Wu   +10 more
wiley   +1 more source

Hepatitis C virus fractional-order model: mathematical analysis. [PDF]

open access: yesModel Earth Syst Environ, 2023
Sadki M, Danane J, Allali K.
europepmc   +1 more source

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