Results 61 to 70 of about 14,462 (263)

Non‐Additive Criteria Assessment in Sustainability Evaluation of High Entropy Alloys: A Toxicity‐Weighted Framework

Advanced Engineering Materials, EarlyView.
Sustainability assessment requires methodologies that appropriately distinguish between additive and non‐additive material properties. A toxicity‐weighted scoring system is developed and applied that accounts for the disproportionate influence of highly toxic constituents through nonlinear weighting functions, providing more realistic estimates than ...
Seth Mehalic, Oladele A. Ogunseitan, Julie M. Schoenung   +2 more
wiley   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Existence, multiplicity, and bifurcation in systems of ordinary differential equations

Electronic Journal of Differential Equations, 2007
We prove new non-resonance conditions for boundary value problems for two dimensional systems of ordinary differential equations. We apply these results to the existence of solutions to nonlinear problems.
James R. Ward Jr.
doaj  

The sufficient conditions for polystability of solutions of nonlinear systems of ordinary differential equations

Zhurnal Srednevolzhskogo Matematicheskogo Obshchestva, 2018
The article states the sufficient polystability conditions for part of variables for nonlinear systems of ordinary differential equations with a sufficiently smooth right-hand side. The obtained theorem proof is based on the establishment of a local componentwise Brauer asymptotic equivalence. An operator in the Banach space that connects the solutions
Pavel A. Shamanaev, Olga S. Yazovtseva
openaire   +2 more sources

Elastic–Plastic Modeling and Experimental Characterization of Granular Jamming Actuators

Advanced Engineering Materials, EarlyView.
Granular jamming enables rapid switching between soft and rigid mechanical states. Here, a reduced‐order elastic‐perfectly‐plastic beam framework captures pressure‐dependent loading, unloading, residual deformation, and hysteresis in jammed beams, while matching three‐point bending experiments across materials and geometries. The framework links design
Saheli Patel, Prashant K. Purohit, Jordan R. Raney   +2 more
wiley   +1 more source

NONLINEAR DIFFERENTIAL EQUATIONS AND SYSTEMS WITH SPECIAL PROPERTIES OF SOLUTIONS

Доклады Белорусского государственного университета информатики и радиоэлектроники, 2019
The results concerning the construction and research of analytic properties of solutions to nonlinear (ordinary and partial) differential equations and systems of special type are presented.
V. V. Tsegel'nik
doaj  

A collocation method for systems of nonlinear ordinary differential equations

Journal of Mathematical Analysis and Applications, 1978
AbstractA collocation method based on piecewise polynomials is applied to boundary value problems for mth order systems of nonlinear ordinary differential equations. Optimal a priori estimates are obtained for the error of approximation in the maximum norm and superconvergence is verified at particular points.
openaire   +2 more sources

Investigation of Resonance Characteristics of More Than 10 000 Metal‐Coated Silicon MEMS Cantilevers Using Machine Learning

Advanced Engineering Materials, EarlyView.
More than 10 000 metal‐coated silicon MEMS cantilevers are fabricated and characterized to build a large‐scale experimental dataset spanning multiple vibrational modes. Machine learning algorithms are benchmarked to predict resonance frequency and quality factor, with ensemble based models achieving accuracy approaching experimental uncertainty.
Sina Zare Pakzad, Saurabh Thorat, Andre Loch Gesing, Dominik Huber, Christopher Zellner, Patrick Egger, Georg Pfusterschmied, Ulrich Schmid, Michael Schneider   +8 more
wiley   +1 more source

On convergence of waveform relaxation for nonlinear systems of ordinary differential equations

Calcolo
To integrate large systems of nonlinear differential equations in time, we consider a variant of nonlinear waveform relaxation (also known as dynamic iteration or Picard-Lindelöf iteration), where at each iteration a linear inhomogeneous system of differential equations has to be solved.
openaire   +3 more sources

Nonlinear Sturm-Liouville problems for systems of ordinary differential equations [PDF]

Topological Methods in Nonlinear Analysis, 1995
The author uses coincidence degree ideas to establish the existence (and sometimes uniqueness) for two point boundary value problems for certain systems of ordinary differential equations.
openaire   +2 more sources