Results 81 to 90 of about 236,123 (310)

Semi-linear wave equations [PDF]

open access: yesBulletin of the American Mathematical Society, 1992
We survey existence and regularity results for semi-linear wave equations. In particular, we review the recent regularity results for the u 5
openaire   +2 more sources

A note on "new travelling wave solutions to the Ostrovsky equation"

open access: yes, 2010
In a recent paper by Yaşar [E. Yaşar, New travelling wave solutions to the Ostrovsky equation, Appl. Math. Comput. 216 (2010), 3191-3194], 'new' travelling-wave solutions to the transformed reduced Ostrovsky equation are presented.
E.J. Parkes, Parkes, E.J.
core   +1 more source

D-SWE: Data-driven discovery of a seismic wave equation

open access: yes, 2023
We propose a data-driven method for the wave equation D-SWE, which includes machine learning and genetic algorithm (GA), capable of discovering a wave equation from the observed spatial-temporal wavefields.
Cheng, Shijun, Alkhalifah, Tariq Ali
core   +1 more source

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

A (2+1)-dimensional sine-Gordon and sinh-Gordon equations with symmetries and kink wave solutions

open access: yesNuclear Physics B, 2020
In this paper, a (2+1)-dimensional sine-Gordon equation and a sinh-Gordon equation are derived from the well-known AKNS system. Based on the Hirota bilinear method and Lie symmetry analysis, kink wave solutions and traveling wave solutions of the (2+1 ...
Gangwei Wang   +4 more
doaj   +1 more source

Rational solitons of wave resonant-interaction models

open access: yes, 2013
Integrable models of resonant interaction of two or more waves in 1+1 dimensions are known to be of applicative interest in several areas. Here we consider a system of three coupled wave equations which includes as special cases the vector nonlinear ...
Degasperis, Antonio   +2 more
core   +1 more source

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

Kajian Teoritis terhadap Persamaan Gelombang Nonlinier

open access: yesJurnal Teknik Sipil, 2010
Abstrak. Paper ini menyajikan hasil perumusan persamaan gelombang nonlinier dengan prosedur yang lain. Dimana amplitudo gelombang, persamaan momentum dari Euler dan tekanan hidrodinamis dari Bernoulli sepenuhnya digunakan, tanpa pemotongan atau ...
Syawaluddin Hutahean
doaj  

Construction and Optimization Techniques for High Order Schemes for the Two-dimensional Wave Equation

open access: yes, 2013
With the advent of high performance parallel computing, audio rate room auralization using finite difference time domain methods is becoming possible in a reasonable computation time. Yet, there are still deficiencies in the methods which are used for this
Stefan Bilbao   +3 more
core   +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

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