Results 81 to 90 of about 1,860,493 (289)
Abstract and Applied Analysis, 2014 Deterministic differential equations are useful tools for mathematical modelling. The consideration of uncertainty into their formulation leads to random differential equations. Solving a random differential equation means computing not only its solution
M.-C. Casabán +3 more
doaj +1 more source
Scalar field cosmology: its non-linear Schrödinger-type formulation [PDF]
arXiv, 2009 Scalar field cosmology is a model for dark energy and inflation. It has been recently found that the standard Friedmann formulation of the scalar field cosmology can be expressed in a non-linear Schr\"{o}dinger-type equation. The new mathematical formulation is hence called non-linear Schr\"{o}dinger (NLS) formulation which is suitable for a FRLW ...
arxiv
Simulation of Inhomogeneous Refractive Index Fields Induced by Hot Tailored Forming Components
Advanced Engineering Materials, EarlyView.This article presents a simulation model for simulating inhomogeneous refractive index fields (IRIF) in hot‐forged components, accounting for thermal influences and complex geometries. Through this simulation, a priori knowledge about the propagation of the IRIF can be obtained, allowing for the positioning of the component or an optical measurement ...
Pascal Kern +3 more
wiley +1 more source
An Ising-type formulation of the six-vertex model
Nuclear Physics B, 2023 We show that the celebrated six-vertex model of statistical mechanics (along with its multistate generalizations) can be reformulated as an Ising-type model with only a two-spin interaction.
Vladimir V. Bazhanov, Sergey M. Sergeev
doaj
Energies, 2018 This paper presents a mathematical linear expansion model for the probabilistic Multistage Phasor Measurement Unit (PMU) Placement (MPP) in which zero-injection buses (ZIBs), as well as communication channel limitations, are taken into consideration ...
Ziad M. Ali +4 more
doaj +1 more source
Simulation Tool for Livestock Feeding: SIMFEED [PDF]
International Journal of Mathematical, Engineering and Management Sciences, 2019 The aim of this paper is to propose a simulation tool: SIMFEED which can formulate balanced livestock feed mix as well as can fulfill the other objectives of the livestock industry such as nutrient variability inclusion, simultaneous achievement of ...
Neha Khanna, Pratiksha Saxena
doaj +1 more source
Distances en geometrie non commutative [PDF]
arXiv, 2001 Cette these etudie l'aspect metrique de la geometrie non commutative a travers la formulation de Connes de la distance entre etats d'une algebre. Sont etudies des exemples d'espaces finis et le modele standard ou le champs de Higgs s'interprete comme coefficient d'une metrique dans une dimension interne discrete.
arxiv
Advanced Engineering Materials, EarlyView.A methodology for establishing an ontology‐augmented structural digital twin for fiber‐reinforced polymer structures dedicated to individual lifetime prediction, in this case, a wind turbine rotor blade, is introduced. The methodology resembles the manufacturing as well as the operation of the structure.
Marc Luger +6 more
wiley +1 more source
MATHEMATICAL MODEL OF WHEELSET OSCILLATIONS WITH INDEPENDENT WHEEL ROTATION IN THE HORIZONTAL PLANE
Nauka ta progres transportu, 2016 Purpose. The work is devoted to the study of horizontal oscillation and the assessment of the motion stability of a single wheelset with independent wheel rotation, and to the comparison of stability indicators of the typical wheelset and the wheelset ...
S. V. Myamlin +2 more
doaj +1 more source
Modeling Framework Simulating the TERRE Activation Optimization Function
Energies, 2020 The Trans-European Replacement Reserve Exchange (TERRE) project is the European implementation project for exchanging Balancing Energy (BE) from Replacement Reserves (RR).
Christos Roumkos +2 more
doaj +1 more source