Results 91 to 100 of about 670,956 (337)

Nonlinear guided waves and spatial solitons in a periodic layered medium

, 2001
We overview the properties of nonlinear guided waves and (bright and dark) spatial optical solitons in a periodic medium created by a sequence of linear and nonlinear layers.
Aceves, Andrey A. Sukhorukov, Barra, Bronski, Bronski, Chen, Cho, Christodoulides, Christodoulides, Darmanyan, de Sterke, Eisenberg, Eisenberg, Grebel, Kapitula, Kevrekidis, Kivshar, Kivshar, Kivshar, Kivshar, Kivshar, Kivshar, Krolikowski, Lan, Lidorikis, Lidorikis, Mingaleev, Morandotti, Morandotti, Nabiev, Peschel, Sukhorukov, Tocci, Trombettoni, Wachter, Wu, Yeh, Yuri S. Kivshar   +37 more
core   +2 more sources

Branching diffusion representation for nonlinear Cauchy problems and Monte Carlo approximation [PDF]

, 2021
Pierre Henry‐Labordère, Nizar Touzi
openalex   +1 more source

Optimization of the Production of Rubber Compounds Using Mathematical Models

Advanced Engineering Materials, EarlyView.
Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle, Andreas Limper, Ulrich Giese, Carlos Lucke, Mario Beiner, Christoph Gögelein, Lisa Leuchtenberger‐Engel, Christian Hopmann   +7 more
wiley   +1 more source

Reinforcement Learning with Function Approximation: From Linear to Nonlinear [PDF]

, 2023
Jihao Long, Jiequn Han
openalex   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Approximation of derivatives by nonlinear operators

Journal of Numerical Analysis and Approximation Theory, 2002
Two theorems on simultaneous approximation are obtained by using generalized convex operators.
Radu Păltănea
doaj   +2 more sources

On the problem of optimal approximation of the four-wave kinetic integral [PDF]

Nonlinear Processes in Geophysics, 2002
The problem of optimization of analytical and numerical approximations of Hasselmann's nonlinear kinetic integral is discussed in general form.
V. G. Polnikov, V. G. Polnikov, L. Farina   +2 more
doaj  

Multivariate Padé Approximations For Solving Nonlinear Diffusion Equations

Open Physics, 2015
In this paper, multivariate Padé approximation is applied to power series solutions of nonlinear diffusion equations. As it is seen from tables, multivariate Padé approximation (MPA) gives reliable solutions and numerical results.
Turut V.
doaj   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Incomplete Phase Space Reconstruction Method Based on Subspace Adaptive Evolution Approximation

Journal of Applied Mathematics, 2013
The chaotic time series can be expanded to the multidimensional space by phase space reconstruction, in order to reconstruct the dynamic characteristics of the original system.
Tai-fu Li, Wei Jia, Wei Zhou, Ji-ke Ge, Yu-cheng Liu, Li-zhong Yao   +5 more
doaj   +1 more source