Results 81 to 90 of about 327,860 (265)
Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere
Advanced Engineering Materials, EarlyView.In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May +9 more
wiley +1 more source
On periodic linear neutral delay differential and difference equations
Electronic Journal of Differential Equations, 2006 This article concerns the behavior of the solutions to periodic linear neutral delay differential equations as well as to periodic linear neutral delay difference equations.
Christos G. Philos, Ioannis K. Purnaras
doaj
Advanced Engineering Materials, EarlyView.Cermets (60 vol.% AISI 316L stainless steel, 40 vol.% recycled MgO), intended for use in aluminum electrolysis, were pre‐oxidized in three furnaces with different heating technologies and subjected to a cryolite corrosion test. The different atmospheres influenced the formation of oxide layers, which in turn affected corrosion resistance and ...
Patricia Kaiser +4 more
wiley +1 more source
Necessary and sufficient conditions for oscillation of neutral delay differential equations
Electronic Journal of Differential Equations, 2014 In this article, we concerned with oscillation of the neutral delay differential equation $[x(t)-px(t-\tau)]'+qx(t-\sigma)=0$ with constant coefficients.
Songbai Guo +2 more
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Periodic perturbations of neutral equations
Journal of Differential Equations, 1984 On considere des perturbations periodiques d'equations neutres d'ordre n autonomes de la forme: L 0 x(t)=Σ t=0 n Σ m=0 k a em x (l) (t-Δ m )=0 avec Δm, a em des nombres reels tels que 0=Δ 0
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Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films
Advanced Functional Materials, EarlyView.The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram +2 more
wiley +1 more source
Stability Switches in a First-Order Complex Neutral Delay Equation
Journal of Applied Mathematics, 2013 Stability of the first-order neutral delay equation x′(t)+ax′(t−τ)=bx(t)+cx(t−τ) with complex coefficients is studied, by analyzing the existence of stability switches.
M. Roales, F. Rodríguez
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Advanced Functional Materials, EarlyView.A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park +8 more
wiley +1 more source
eriodicity and stability in neutral nonlinear differential equations with functional delay
Electronic Journal of Differential Equations, 2005 We study the existence and uniqueness of periodic solutions and the stability of the zero solution of the nonlinear neutral differential equation $$ frac{d}{dt}x(t) = -a(t)x(t)+ frac{d}{dt}Q(t, x(t-g(t))) +G(t,x(t), x(t-g(t))).
oussef M. Dib +2 more
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Oscillations of mixed neutral equations
Hiroshima Mathematical Journal, 1989 This article considers oscillatory and asymptotic behaviour of solutions for a neutral first order equation (of advanced, retarded or mixed type). A feature of the employed methods concerns the fact that the problem is tackled involving some conditions on the coefficients and the argument only rather than the characteristic equation associated with ...
openaire +4 more sources