Results 1 to 10 of about 661 (76)

Competition between local disordering and global ordering fields in nematic liquid crystals [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2010
We study the influence of external electric or magnetic field B on orientational ordering of nematic liquid crystals or of other rod-like objects (e.g. nanotubes immersed in a liquid) in the presence of random anisotropy field type of disorder.
Matej Cvetko   +2 more
doaj   +2 more sources

GEANT4 : a simulation toolkit [PDF]

open access: yes, 2005
Geant4 is a toolkit for simulating the passage of particles through matter. It includes a complete range of functionality including tracking, geometry, physics models and hits.
Agostinelli, S.   +126 more
core   +1 more source

Wang-Landau sampling in three-dimensional polymers [PDF]

open access: yes, 2006
Monte Carlo simulations using Wang-Landau sampling are performed to study three-dimensional chains of homopolymers on a lattice. We confirm the accuracy of the method by calculating the thermodynamic properties of this system.
Caparica, A. A.   +3 more
core   +1 more source

Enlightening the atomistic mechanisms driving self-diffusion of amorphous Si during annealing [PDF]

open access: yes, 2010
We have analyzed the atomic rearrangements underlying self-diffusion in amorphous Si during annealing using tight-binding molecular dynamics simulations. Two types of amorphous samples with different structural features were used to analyze the influence
Iván Santos   +4 more
core   +3 more sources

Compressed sensing image restoration algorithm based on improved SURF operator

open access: yesOpen Physics, 2018
Aiming at the excellent descriptive ability of SURF operator for local features of images, except for the shortcoming of global feature description ability, a compressed sensing image restoration algorithm based on improved SURF operator is proposed. The
Zhou Guodong   +2 more
doaj   +1 more source

Procedimiento para el cálculo de circuitos en el modelado del flujo en intercambiadores de calor de aletas y tubos

open access: yesIngeniería y Ciencia, 2015
En este trabajo se presenta un procedimiento general para la simulación del comportamiento del flujo en los intercambiadores de tubos y aletas con una gran flexibilidad en el manejo de la información.
Edwin Córdoba Tuta, David Fuentes Díaz
doaj   +1 more source

Monte Carlo Simulation of a Model of Water [PDF]

open access: yes, 2005
We simulate TIP3P water using a constrained Monte Carlo algorithm to generate electrostatic interactions eliminating the need to sum over long ranged Coulomb interactions.
Maggs, A. C.
core   +2 more sources

Fast recognition algorithm for static traffic sign information

open access: yesOpen Physics, 2018
Aiming at the low recognition rate, low recognition efficiency, poor anti-interference and high missing detection rate of current traffic sign recognition methods, a fast recognition algorithm based on SURF for static traffic sign information of highway ...
Guo Shaocui, Yang Xu
doaj   +1 more source

Investigating the influence of the constituent materials on the performance of periodic piezoelectric composite arrays [PDF]

open access: yes, 2007
This paper describes a theoretical investigation into the influence of the constituent materials on periodic composite array transducer performance. A finite element (FE) model, configured in PZFlex, is used to analyze the performance of a wedge coupled ...
Gachagan, A.   +3 more
core   +1 more source

Wave propagation time optimization for geodesic distances calculation using the Heat Method

open access: yesOpen Physics, 2019
Finding the geodesic path defined as the shortest paths between two points on three-dimensional surface P is a well known problem in differential and computational geometry.
Wróblewski Artur, Andrzejczak Jarosław
doaj   +1 more source

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