Results 101 to 110 of about 1,210,000 (252)

A stabilized simulated annealing-based Barzilai–Borwein method for the solution of unconstrained optimization problems [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization
The Barzilai–Borwein method offers efficient step sizes for large-scale un-constrained optimization problems. However, it may not guarantee global convergence for nonquadratic objective functions.
H. Sharma, R.K. Nayak
doaj   +1 more source

Bioinspired Hydrogels with Broadly Programmable Mechanics for Soft‐Tissue Interfaces

open access: yesAdvanced Functional Materials, EarlyView.
Sea cucumber‐inspired gelatin hydrogels are formed by directional freezing and mechanically programmed through subsequent ionic treatment. Multiscale characterization and modeling link ion‐regulated chain interactions to directional load transfer within the aligned hierarchical architecture.
Youchao Teng   +20 more
wiley   +1 more source

Additively Manufactured Geometry‐Reconfigurable Soft Neural Probes With Monolithic Multifunctionality

open access: yesAdvanced Functional Materials, EarlyView.
A geometry‐reconfigured additive manufacturing strategy converts planar printed soft materials into soft compact neural probes with integrated hydrogel electrodes and microfluidic channels. The resulting NeuroMAP platform enables scalable multichannel recording, localized chemical delivery, stable in vivo electrophysiological recording, and reduced ...
Hyunjin Lee   +15 more
wiley   +1 more source

Combinatorial optimisation of a large, constrained simulation model: an application of compressed annealing [PDF]

open access: yes
Simulation models are valuable tools in the analysis of complex, highly constrained economic systems unsuitable for solution by mathematical programming.
Pannell, David J., Doole, Graeme J.
core  

SIMULATED ANNEALING PARA LA BÚSQUEDA DE POLÍTICAS ÓPTIMAS EN PROCESOS DE DECISIÓN DE MARKOV [PDF]

open access: yes, 2005
El presente articulo muestra como implementar el algoritmo del simulated annealing, para resolver un ejemplo práctico de procesos de decisión de Markov (MDP).
Salas Ruiz, Roberto Emilio
core   +1 more source

Halide Composition Controls Phase Morphology and Device Specific Performance in Perovskite Photovoltaics and Light Emitting Diodes

open access: yesAdvanced Functional Materials, EarlyView.
We demonstrate that halide composition determines phase morphology, governing distinct operating mechanisms in mixed halide perovskites. Phase segregating 75% Br compositions enhance solar cell performance, whereas intrinsically phase‐separated 95% Br compositions provide stable light emitting diodes.
Tal Binyamin   +6 more
wiley   +1 more source

Simulated Annealing [PDF]

open access: yes, 1992
This tutorial describes simulated annealing, an optimization method based on the principles of statistical mechanics. Simulated annealing finds near-optimal solutions to optimization problems that cannot be solved exactly because they are NP-complete ...
Hansen, Per Brinch
core  

Stabilization of Strongly Reduced Fe(I) Single Atom Species Coordinated in a 2D Self‐Assembled Metal–Organic Network

open access: yesAdvanced Functional Materials, EarlyView.
A graphene‐supported 2D metal–organic network stabilizes highly reactive Fe(I)‐N4 single sites through Co‐induced charge redistribution. Combined experiments and theory reveal Fe(I) formation, oxygen‐driven oxidation, and O2 activation mechanisms, offering a strategy to access low‐valent iron centers relevant to catalytic and biological processes ...
Alessandro Namar   +9 more
wiley   +1 more source

Permutation Flowshop Scheduling in ED Aluminium Using Metaheuristic Approaches

open access: yesJournal of Industrial Engineering and Halal Industries
This study proposes metaheuristics to solve the permutation flowshop scheduling problem in ED Aluminium which produces kitchen utensils. The aim is to find the processing sequence of products that results in the shortest total completion time, minimizing
Haposan Vincentius Manalu   +4 more
doaj   +1 more source

Lone‐Pair‐Induced Lattice Distortion in Lead‐Free Hybrid Perovskites for High‐Performance Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
A lead‐free tin‐based hybrid perovskite is designed in which stereochemically active lone‐pair electrons on tin distort the crystal lattice and break its symmetry. Blended into a flexible polymer, the material converts pressure into electricity at milliwatt‐scale power density and continues working far below freezing, powering a commercial wristwatch ...
Majid Haji Bagheri   +12 more
wiley   +1 more source

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