Results 41 to 50 of about 28,036 (238)

On locally pure-injective modules

open access: yesJournal of Pure and Applied Algebra, 2002
A submodule \(M\) of a right \(R\)-module \(N\) is called strongly pure (s-pure) if for every finite tuple \(x_1,x_2,\dots,x_n\) of elements of \(M\) there exists a map \(t\in\Hom(N,M)\) such that \(t(x_i)=x_i\) for \(1\leq i\leq n\). A monomorphism \(f\colon M\to N\) is called s-pure if \(f(M)\) is s-pure in \(N\).
openaire   +2 more sources

Thermophysical Properties of the Desulphurization Slags With Various CaS and CaO/Al2O3 Ratio

open access: yesAdvanced Engineering Materials, EarlyView.
This article investigates how CaS content and the CaO/Al2O3 ratio influence the thermophysical properties of desulphurization slags. Using experimental measurements and thermodynamic simulations, this study reveals complex effects on viscosity, surface tension, and density, providing new insight into slag structure and phase behavior under ...
Eldar Salpagarov   +4 more
wiley   +1 more source

Gorenstein dimension of modules over homomorphisms [PDF]

open access: yes, 2005
Given a homomorphism of commutative noetherian rings R --> S and an S-module N, it is proved that the Gorenstein flat dimension of N over R, when finite, may be computed locally over S.
Christensen   +2 more
core   +2 more sources

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin   +5 more
wiley   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

One-directed indecomposable pure injective modules over string algebras [PDF]

open access: yesColloquium Mathematicum, 2004
This work is a further step in Ringel's program classifying indecomposable pure injective modules over finite-dimensional string algebras. As the main result, the authors prove in Theorem 5.4 that the isomorphism type of an indecomposable pure injective module \(M\) over a string algebra admitting a one-sided word \(w(m)\) for some nonzero element \(m ...
Prest, Mike, Puninski, Gena
openaire   +2 more sources

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

open access: yesAdvanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich   +6 more
wiley   +1 more source

Superdecomposable pure-injective modules exist over some string algebras [PDF]

open access: yesProceedings of the American Mathematical Society, 2003
We prove that over every non-domestic string algebra over a countable field there exists a superdecomposable pure-injective module.
Puninskiy, Gennady, Puninski, Gena
openaire   +3 more sources

Photoswitching Conduction in Framework Materials

open access: yesAdvanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez   +4 more
wiley   +1 more source

Two characterizations of pure injective modules

open access: yes, 2005
Let $R$ be a commutative ring with identity and $D$ an $R$-module. It is shown that if $D$ is pure injective, then $D$ is isomorphic to a direct summand of the direct product of a family of finitely embedded modules. As a result, it follows that if $R$ is Noetherian, then $D$ is pure injective if and only if $D$ is isomorphic to a direct summand of the
Divaani-Aazar, Esmkhani, Tousi
openaire   +2 more sources

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