Results 81 to 90 of about 2,523,007 (359)

Enhancing the Photocatalytic Performance of Carbon Nitrides Through Controlled Local Structure Modification

open access: yesAdvanced Functional Materials, EarlyView.
This work utilizes poly(heptazine imides) as a model system to demonstrate how fine‐tuning the crystal structure influences the photocatalytic properties of layered carbon nitrides in the hydrogen evolution reaction. In particular, the nature of rotational defects and the hydration shell of cations are key contributors to enhanced hydrogen evolution ...
Diana V. Piankova   +11 more
wiley   +1 more source

Quadratic equations in Swedish textbooks for upper-secondary school

open access: yesLUMAT, 2021
This paper analyzes the content and tasks involving quadratic equations in eight mathematics textbooks published during the period 2000-2012 at the upper-secondary level in Sweden.
Wang Wei Sönnerhed
doaj   +1 more source

Traces on Infinite-Dimensional Brauer Algebras

open access: yes, 2006
We describe the central measures for the random walk on graded graphs. Using this description, we obtain the list of all finite traces on three infinite-dimensional algebras: on the Brauer algebra, on the partition algebra, and on the walled Brauer ...
Nikitin, P., Vershik, A.
core   +3 more sources

Ultrafast Dynamics of Complete Sb2S3 Solar Cells Unveiled via a Bifacial Architecture

open access: yesAdvanced Materials Interfaces, EarlyView.
Highly transparent, bifacial solar cells using a ZnO layer and indium tin oxide (ITO) are developed, enabling transient absorption spectroscopy (TAS) measurements. These bifacial cells show photovoltaic performance comparable to traditional cells. By integrating TAS and optical modeling, new insights into charge transfer mechanisms in Sb2S3‐based solar
Robert C. Hamburger   +8 more
wiley   +1 more source

On derivations of linear algebras of a special type

open access: yesДифференциальная геометрия многообразий фигур
In this work, Lie algebras of differentiation of linear algebra, the op­eration of multiplication in which is defined using a linear form and two fixed elements of the main field are studied. In the first part of the work, a definition of differentiation
A. Ya. Sultanov   +2 more
doaj   +1 more source

Triphasic Inter‐Dimensional WS2/Magnetic Lithium Iron Oxide Nanocomposite for Electromagnetic Interference Shielding

open access: yesAdvanced Materials Interfaces, EarlyView.
This study investigates the electromagnetic interference shielding performance of a multiphasic nanocomposite consisting of granular magnetic ferrite (α‐LiFe5O8/α‐LiFeO2) and conductive WS2 nanoflakes. It establishes a clear correlation between the shielding performance and relative fractions of the phases with distinct morphologies/dimensionalities ...
Sagnik Ghosh   +9 more
wiley   +1 more source

Quantum hypercomputation based on the dynamical algebra su(1,1)

open access: yes, 2006
An adaptation of Kieu's hypercomputational quantum algorithm (KHQA) is presented. The method that was used was to replace the Weyl-Heisenberg algebra by other dynamical algebra of low dimension that admits infinite-dimensional irreducible representations
A Sicard   +30 more
core   +2 more sources

Coherence and weak coherence in the square of algebras [PDF]

open access: yesCzechoslovak Mathematical Journal, 1992
A subalgebra \(B\) of an algebra \(A\) is said to be coherent with a congruence \(\Theta\) on \(A\) whenever the assumption \([b]\Theta\subseteq B\) for some \(b\in B\) implies \([x]\Theta\subseteq B\) for every \(x\in B\). If \(A\) is an algebra with a nullary operation 0 we say that a subalgebra \(B\) of \(A\) is weakly coherent with a congruence ...
openaire   +3 more sources

Wirelessly Powered Ingestible Capsule for Optical Stimulation of the Gastrointestinal Tract in Rodents

open access: yesAdvanced Materials Technologies, EarlyView.
An ingestible electronic capsule, ICOPS, enables non‐invasive optical gut stimulation in rodents. ICOPS features modular LEDs and optimized power transfer for robust, in vivo functionality. This cleanroom‐free, 3D‐printed platform offers a compact, scalable solution for optogenetically interfacing enteric neural circuits, promising advances in ...
Mohamed Elsherif   +9 more
wiley   +1 more source

A Quantum Algorithm for the Commutativity of Finite Dimensional Algebras

open access: yesIEEE Access, 2019
A quantum procedure for testing the commutativity of a finite dimensional algebra is introduced. This algorithm, based on Grover's quantum search, is shown to provide a quadratic speed-up (when the number of queries to the algebra multiplication ...
Elias F. Combarro   +2 more
doaj   +1 more source

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