Results 121 to 130 of about 90,190 (300)

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Moment matching versus Bayesian estimation: Backward-looking behaviour in the new-Keynesian three-equations model [PDF]

open access: yes
The paper considers an elementary New-Keynesian three-equations model and contrasts its Bayesian estimation with the results from the method of moments (MM), which seeks to match the model-generated second moments of inflation, output and the interest ...
Franke, Reiner   +2 more
core  

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Intrinsic viscosity of guar gum in sweeteners solutions

open access: yes, 2008
Rheological methods were applied to study the effect of sweeteners on the rheological behavior of guar gum in dilute solutions. The concentration of the sweeteners were 0.1, 0.2%w/v for aspartame, acesulfame-k and cyclamate, and 0.001, 0.002%w/v for ...
Razavi, S H   +3 more
core   +1 more source

Intrinsic Solutions to the Biquadratic Diophantine Equations

open access: yesInternational Journal for Research in Applied Science and Engineering Technology
Abstract: The Biquadratic Diophantine equation with five unknowns has non-zero unique intrinsic integral solutions obtained. The recurrence relation between the solutions is also obtained.
openaire   +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

Intrinsic Time Integration Procedures for Rigid Body Dynamics

open access: yes, 2013
The treatment of rotations in rigid body and Cosserat solids dynamics is challenging. In most cases, at some point in the formulation, a parameterization of rotation is introduced and the intrinsic nature of the equations of motions is lost.
Bauchau, Olivier   +4 more
core   +1 more source

Intrinsic instability of lean hydrogen/ammonia premixed flames: Influence of Soret effect and pressure

open access: yesFuel Communications
The addition of hydrogen in ammonia/air mixtures can lead to the onset of intrinsic flame instabilities at conditions of technical relevance. The length and time scales of intrinsic instabilities can be estimated by means of linear stability analysis of ...
F. D’Alessio   +3 more
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

Intrinsic localized modes for DNLS equation with competing nonlinearities: Bifurcations

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science
We study nonlinear excitations described by Discrete Nonlinear Schrödinger (DNLS)-type equations with so-called competing nonlinearities, i.e., the nonlinearities that consist of two power terms with coefficients of a different sign. A key feature of these models is the presence of the two governing parameters: α, which characterizes the coupling ...
G. L. Alfimov   +2 more
openaire   +3 more sources

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