Results 101 to 110 of about 88,256,166 (248)

Implicit quasilinear differential systems: a geometrical approach

Electronic Journal of Differential Equations, 1999
This work is devoted to the study of systems of implicit quasilinear differential equations. In general, no set of initial conditions is admissible for the system.
Miguel C. Munoz-Lecanda, N. Roman-Roy
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Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

Advanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

A seventh order numerical method for singular perturbed differential-difference equations with negative shift

Nonlinear Analysis, 2011
In this paper, a seventh order numerical method is presented for solving singularly perturbed differential-difference equations with negative shift. In recent papers the term negative shift has been used for delay.
Kolloju Phaneendra, Y. N. Reddy, GBSL. Soujanya   +2 more
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Qualitative theory of differential equations

, 2022
Az 1988. aug. 22-26. között Szegeden, a József Attila Tudományegyetem Természettudományi Karának Bolyai Intézete által rendezett 3. Colloquium on the Qualitative Theory of Differential Equations előadásaied. by B.

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Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

Advanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali, Magali Gregoire, Matys Guyard, Tatiana Itina, David Grojo, Pol Sopeña   +5 more
wiley   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

Advanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees, Timothy Harte, Bhagya Dharmasiri, Y. Athulya Wickramasingha, David J. Hayne, Daniel J. Eyckens, Luke C. Henderson   +6 more
wiley   +1 more source

The application of methods of the theory of ordinary differential equations Fuchs class to study the properties of solutions of the Klein–Gordon equations in the General Relativistic Theory

Keldysh Institute Preprints, 2018
Nikolay Nikolaevich Fimin, Valery Mihailovich Chechetkin   +1 more
openaire   +1 more source

Discrepancies Between Micro Versus Macroscale Viscoelastic Properties in a Microplastic‐Tissue Composite Model

Advanced Engineering Materials, EarlyView.
This study explores the discrepancies between bulk mechanics and spatial mapping in a tissue‐mimetic hydrogel model. Microplastic particles create localized stiff mechanical microenvironments that are detectable by cellular‐scale nanoindentation but leave bulk properties unchanged as measured by rheology.
Ahron T. Verschleisser, Baptiste Le Roi, Omri Leshem, Joshua M. Grolman   +3 more
wiley   +1 more source

Stressed-deformed state of a rotating polar-orthotropic disk of constant thickness loaded with undistracted forces on the outer contour

Журнал Белорусского государственного университета: Математика, информатика, 2019
The work gives a solution of the plane elasticity problem for a rotating polar-orthotropic annular disk of a constant  thickness. The disk is loaded with a system of identical undistracted forces on the outer contour applied evenly along  the rim and ...
Uladzimir V. Karalevich, Dmitrij G. Medvedev   +1 more
doaj  

PRIN 2009: Critical point theory and perturbative methods for nonlinear differential equations. Hamiltonian Systems and Partial Differential Equations

, 2011
Many partial differential equations arising in Physics can be seen as innite dimensional Hamiltonian systems. Main examples are the nonlinear Schrodinger (NLS) and wave (NLW) equations, the beam, membrane and Kirkhoff equations in elasticity theory, the ...
BERTI, MASSIMILIANO
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