Results 131 to 140 of about 4,818,273 (341)

Laboratory‐Scale Procedure for Evaluating the Flux Efficiency on Melt Cleanliness and Tensile Properties of Recycled Aluminum Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
A laboratory‐scale procedure is developed to evaluate the efficiency of melt‐cleaning and drossing fluxes during aluminium alloy recycling, studying their effects on melt cleanliness and tensile properties of secondary foundry alloys. This work provides a practical tool for foundries and aluminium refiners to assess the efficiency of salt fluxes in ...
Veronica Milani, Giulio Timelli
wiley   +1 more source

The maximum principle and biharmonic functions

open access: yesJournal of Mathematical Analysis and Applications, 1961
AbstractThis note concerns the maximum principle which applies to solutions of partial differential equations of elliptic type. This principle asserts that the maximum of a solution occurs on the boundary of a region. Consideration of the ratio of solutions of an elliptic equation shows that the ratio satisfies the same maximum principle.
openaire   +2 more sources

Maximum Principles and Boundary Value Problems for First-Order Neutral Functional Differential Equations

open access: yesJournal of Inequalities and Applications, 2009
We obtain the maximum principles for the first-order neutral functional differential equation where , and are linear continuous operators, and are positive operators, is the space of continuous functions, and is the space of essentially ...
Domoshnitsky Alexander   +2 more
doaj  

Impact of Various Rotary Friction Welding Process Parameters on the Mechanical Properties of a Steel–Aluminum Joint

open access: yesAdvanced Engineering Materials, EarlyView.
Rotary friction welding of steel E355 and the aluminum alloy EN AW‐6082 can lead to the formation of brittle intermetallic phases. The primary process parameters are varied in order to determine their influence on this intermetallic phase formation and the resulting mechanical properties.
Laura Huber   +4 more
wiley   +1 more source

On maximum principles for M-operators

open access: yesLinear Algebra and its Applications, 2003
The author extends the notion of \(M\)-matrices (and some results) to certain ordered normed vector spaces and proves abstract maximum principles.
openaire   +3 more sources

A parameter-free smoothness indicator for high-resolution finite element schemes

open access: yesOpen Mathematics, 2013
Kuzmin Dmitri, Schieweck Friedhelm
doaj   +1 more source

Strong maximum principles for implicit parabolic functional-differential problems together with initial inequalities

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2004
The aim of the paper is to give strong maximum principles for implicit non-linear parabolic functional-differential problems together with initial inequalities in relatively arbitrary $(n+1)$-dimensional time - space sets more general than cylindrical ...
Ludwik Byszewski
doaj  

Laser Remelting of a CrMnFeCoNi High‐Entropy Alloy: Effect of Energy Density on Elemental Segregation

open access: yesAdvanced Engineering Materials, EarlyView.
Laser remelting of a CrMnFeCoNi high‐entropy alloy reveals that optimal chemical homogenization occurs between 30 and 40 J·mm−2. Within this range, elemental segregation is reduced by over 30% compared to the as‐cast state. The study establishes this window as a fast, effective alternative to prolonged annealing for achieving uniform elemental ...
Ajay Talbot   +5 more
wiley   +1 more source

Soft Beats: A Dielectric Elastomer‐Based Ventricular Assist Device for Next‐Gen Heart Failure Management

open access: yesAdvanced Engineering Materials, EarlyView.
The dielectric elastomer‐based electropneumatic device (DE‐EPD) is a vacuum‐assisted ventricular assist device (VAD) that delivers high performance (85 mmHg, 6.8 L min−1) with low power consumption. Unlike traditional motor‐driven VADs, it is lightweight, quiet, energy‐efficient, and provides pulsatile flow. Validated in a simulated circulation system,
Amine Benouhiba   +6 more
wiley   +1 more source

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