Results 81 to 90 of about 315,378 (316)

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

open access: yesAdvanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl   +4 more
wiley   +1 more source

Openness To Trade as a Determinant of the Elasticity of Substitution between Capital and Labor [PDF]

open access: yes
Some recent work on economic growth considers the aggregate elasticity of substitution between capital and labor as a measure of economic flexibility. It is thought to depend on technological and institutional determinants.
Marianne Saam
core  

Elastic and electronic properties of fluorite RuO2 from first principle

open access: yesCondensed Matter Physics, 2012
The elastic, thermodynamic, and electronic properties of fluorite RuO2 under high pressure are investigated by plane-wave pseudopotential density functional theory.
Z.J. Yang   +7 more
doaj   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

open access: yesAdvanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan   +5 more
wiley   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Endogenous Aggregate Elasticity of Substitution [PDF]

open access: yes
In the literature studying aggregate economies the aggregate elasticity of substitution (AES) between capital and labor is often treated as a constant or “deep” parameter. This view contrasts with the conjecture put forward by Arrow et al.
Chris Papageorgiou, Kaz Miyagiwa
core  

Development of Variable Elastic Band with Adjustable Elasticities for Semi-Passive Exosuits

open access: yesBiomimetics
Active exosuits provide various assistive force profiles but are limited by battery life, weight, and complex maintenance requirements. Passive exosuits, by contrast, are economical and lightweight while also offering unlimited usage times; however, due ...
Jaewook Ryu, Gyeongmo Kim, Giuk Lee
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Economic Growth, Urbanization, and Transport Emissions: An Investigation of Elasticity-Based Decoupling Metrics in the Gulf

open access: yesEconomies
Transport is among the fastest-growing contributors to carbon dioxide (CO2) emissions in the Gulf Cooperation Council (GCC) region, where rapid urbanization, population growth, and high mobility demand continue to shape energy use.
Sadiq H. Melhim, Rima J. Isaifan
doaj   +1 more source

Symbolic Regression and Multi‐Objective Optimization of the Flory–Huggins Interaction Parameter for Hydrogels

open access: yesAdvanced Engineering Materials, EarlyView.
We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang   +2 more
wiley   +1 more source

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