Results 101 to 110 of about 3,570,033 (364)

Deciphering the Origin of Higher Shell Coordination on Single Iron Catalysts for Resilient Modulating Persulfate Oxidation Into Singlet Oxygen Pathway

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
This study reveals that higher shell S coordination can effectively modulate the spin state of FeN4 site via long‐range electronic interactions, giving rise to the oriented generation of singlet oxygen from peroxymonosulfate activation. Abstract Precise manipulation of coordination structure of single‐atom sites and establishment of schematic ...
Liang Zhang   +8 more
wiley   +1 more source

Application of symmetric orthogonal multiwavelets and prefilter technique for image compression

open access: yesJournal of Computer Science and Technology, 2003
Multiwavelets are new addition to the body of wavelet theory. There are many types of symmetric multiwavelets such as Geronimo-Hardin-Massopust (GHM) and Chui-Lian (CL) multiwavelets.
Jiazhong Chen   +4 more
doaj  

The Generalized Bisymmetric (Bi-Skew-Symmetric) Solutions of a Class of Matrix Equations and Its Least Squares Problem

open access: yesAbstract and Applied Analysis, 2014
The solvability conditions and the general expression of the generalized bisymmetric and bi-skew-symmetric solutions of a class of matrix equations (AX=B, XC=D) are established, respectively.
Yifen Ke, Changfeng Ma
doaj   +1 more source

Nodal Decompositions of a Symmetric Matrix

open access: yesInternational Mathematics Research Notices
Abstract Analyzing nodal domains is a way to discern the structure of eigenvectors of operators on a graph. We give a new definition extending the concept of nodal domains to arbitrary signed graphs, and therefore to arbitrary symmetric matrices.
McKenzie, Theo, Urschel, John
openaire   +2 more sources

Chemically Processed Porous V2O5 Thin‐Film Cathodes for High‐Performance Thin‐film Zn‐Ion Batteries

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
This study presents a rapid, cost‐effective chemical method for fabricating porous vanadium oxide thin‐film cathodes, aimed at enhancing charge storage in Zinc‐ion thin‐film batteries. The approach promises high‐performance, safe, and affordable thin‐film batteries, with industrial viability through efficient processing of highly porous cathodes ...
Jingli Luo   +9 more
wiley   +1 more source

The symmetric N-matrix completion problem

open access: yesLinear Algebra and its Applications, 2005
A real \(n\times n\) matrix is called an \(N\)-matrix if all its principal minors are negative. Consider a partial symmetric matrix \(A\) where some entries are unspecified. The problem under consideration is whether it is possible to determine these unspecified entries in such a way that the resulting fully specified symmetric matrix is an \(N ...
Araújo, C. Mendes   +2 more
openaire   +3 more sources

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

open access: yesAdvanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer   +12 more
wiley   +1 more source

The Tropical Matrix Groups with Symmetric Idempotents

open access: yesDiscrete Dynamics in Nature and Society, 2018
In this paper we study the semigroup Mn(T) of all n×n tropical matrices under multiplication. We give a description of the tropical matrix groups containing a diagonal block idempotent matrix in which the main diagonal blocks are real matrices and other ...
Lin Yang
doaj   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

open access: yesAdvanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger   +11 more
wiley   +1 more source

Generalized Symmetric Fermatean Neutrosophic Fuzzy Matrices [PDF]

open access: yesNeutrosophic Sets and Systems
This study explores a new type of matrix called a range-symmetric Fermatean neutrosophic fuzzy matrix (FNFM), inspired by the concept of range-Hermitian matrices.
M.Anandhkumar   +3 more
doaj   +1 more source

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