Results 11 to 20 of about 1,215,494 (273)

A Simultaneous Numerical Integration Routine for the Fast Calculation of Similar Integrations

open access: yesJournal of Innovative Science and Engineering, 2023
In this paper, a fast and simultaneous integration routine tailored for obtaining results of multiple numerical integrations is introduced. In the routine, the same nodes are used when integrating different functions along the same integration path.
Aytac ALPARSLAN
doaj   +1 more source

QCD Calculations by Numerical Integration [PDF]

open access: yes, 1998
Calculations of observables in Quantum Chromodynamics are typically performed using a method that combines numerical integrations over the momenta of final state particles with analytical integrations over the momenta of virtual particles.
Catani   +6 more
core   +3 more sources

Choosing integration points for QCD calculations by numerical integration [PDF]

open access: yes, 2001
I discuss how to sample the space of parton momenta in order to best perform the numerical integrations that lead to a calculation of three jet cross sections and similar observables in electron-positron annihilation.Comment: 25 pages with 8 ...
D.E. Soper   +7 more
core   +3 more sources

Discrete-time port-Hamiltonian systems: A definition based on symplectic integration [PDF]

open access: yes, 2018
We introduce a new definition of discrete-time port-Hamiltonian systems (PHS), which results from structure-preserving discretization of explicit PHS in time.
Kotyczka, Paul, Lefèvre, Laurent
core   +4 more sources

Description of changes in genetic control in cells at their proliferation and differentiation

open access: yesБіологічні студії, 2014
On the basis of previously built kinetic model of changes in genetic controlling systems in cells at their proliferation and differentiation, it was held that these changes take place on gene, chromosome, membrane and ion levels.
I. V. Stadnyk, D. I. Sanagursky
doaj   +1 more source

Reaction-Diffusion in the NEURON Simulator

open access: yesFrontiers in Neuroinformatics, 2013
In order to support research on the role of cell biological principles (genomics, proteomics, signaling cascades and reaction dynamics) on the dynamics of neuronal response in health and disease, NEURON has developed a Reaction-Diffusion (rxd) module in ...
Robert A. McDougal   +4 more
doaj   +1 more source

Comparative Analysis of State-Space and Companion-Circuit Methodologies for the Periodic Steady-State Solution in Time-Domain of Nonlinear Electric Networks

open access: yesIEEE Access, 2021
This contribution reports a comparative analysis of two methodologies for the periodic steady-state solution of linear and nonlinear electric networks in time-domain (TD), based on the state-space model (SSM) and companion-circuit analysis (CCA ...
Julio Cesar Godinez-Delgado   +1 more
doaj   +1 more source

How Angular Velocity Features and Different Gyroscope Noise Types Interact and Determine Orientation Estimation Accuracy

open access: yesSensors, 2015
In human movement analysis, 3D body segment orientation can be obtained through the numerical integration of gyroscope signals. These signals, however, are affected by errors that, for the case of micro-electro-mechanical systems, are mainly due to ...
Ilaria Pasciuto   +5 more
doaj   +1 more source

Modified Gauss-Legendre, Lobatto and Radau cubature formulas for the numerical evaluation of 2-D singular integrals

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1983
A numerical technique, first reported in 1979 in refs.[1] and [2], for the numerical evaluation of two-dimensional Cauchy-type principal-value integrals, is extended in this paper to include several cubature formlas of the Radau and Lobatto types.
P. S. Theocaris
doaj   +1 more source

Techniques for QCD calculations by numerical integration [PDF]

open access: yes, 1999
Calculations of observables in quantum chromodynamics are typically performed using a method that combines numerical integrations over the momenta of final state particles with analytical integrations over the momenta of virtual particles. I describe the
D. E. Soper   +7 more
core   +2 more sources

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