Results 41 to 50 of about 31,598 (181)

Revivals of Coherence in Chaotic Atom-Optics Billiards

open access: yes, 2003
We investigate the coherence properties of thermal atoms confined in optical dipole traps where the underlying classical dynamics is chaotic. A perturbative expression derived for the coherence of the echo scheme of [Andersen et. al., Phys. Rev. Lett. 90,
C. Cohen-Tannoudji   +5 more
core   +1 more source

A Technique for Making Nuclear Fusion in Solids [PDF]

open access: yes, 2017
A technique is described for making nuclear fusion at room temperature by compressing a powder mixture comprising a deuteride and catalytic material. The result is explosive beyond known chemical reaction for the materials.
WAYTE, RICHARD
core   +1 more source

Assessment of the Spectral Volume Method on inviscid and viscous flows [PDF]

open access: yes, 2010
The compact high-order "Spectral Volume Method" designed for conservation laws on unstructured grids is presented. Its spectral reconstruction is exposed briefly and its applications to the Euler equations are presented through several test cases to ...
Chikhaoui, Oussama   +2 more
core  

Wedge splitting test of wood for fracture parameters estimation of Norway Spruce

open access: yesEngineering Fracture Mechanics, 2020
Abstract Crack evolution in wood from Norway Spruce during mode I wedge splitting tests was measured using a Digital Image Correlation (DIC) system. The resulting series of deformation fields were post-processed in order to obtain kinematically based crack tip location histories throughout the loading procedure, by a purposely made algorithm.
Katarzyna Ostapska, Kjell Arne Malo
openaire   +1 more source

Mesoscopic study on historic masonry

open access: yes, 2008
This paper presents a comprehensive approach to the evaluation of macroscopic material parameters for natural stone and quarry masonry. To that end, a reliable non-linear material model on a meso-scale is developed to cover the random arrangement of ...
Sejnoha, J.   +4 more
core   +1 more source

Numerical study and pilot evaluation of experimental data measured on specimen loaded by bending and wedge splitting forces

open access: yesFracture and Structural Integrity, 2016
The fracture mechanical properties of silicate based materials are determined from various fracture mechanicals tests, e.g. three- or four- point bending test, wedge splitting test, modified compact tension test etc.
S. Seitl, R. Diego Liedo
doaj  

Numerical Simulations of a Wedge Splitting Test for High-strength Concrete

open access: yesProcedia Engineering, 2014
AbstractThe paper presents results of wedge splitting tests (WST) for high-strength concrete performed in a laboratory and an attempt to develop a numerical model of the test. Characteristics of high-strength concretes as well as the experimental setup of WST are presented.
Sitek, Marta   +5 more
openaire   +1 more source

Scenario for Ultrarelativistic Nuclear Collisions: Space--Time Picture of Quantum Fluctuations and the Birth of QGP [PDF]

open access: yes, 1998
We study the dynamics of quantum fluctuations which take place at the earliest stage of high-energy processes and the conditions under which the data from e-p deep-inelastic scattering may serve as an input for computing the initial data for heavy-ion ...
A. D. Sakharov   +31 more
core   +2 more sources

Asymmetric creep modeling of common refractory ceramics with high temperature wedge splitting test

open access: yesEngineering Fracture Mechanics, 2021
Abstract Common refractory ceramics display significant asymmetric creep behavior at high temperatures under uniaxial loading conditions. This study introduces an advanced asymmetric creep model based on the stress path in the hydrostatic pressure–von Mises stress diagram.
Shengli Jin, Harald Harmuth
openaire   +1 more source

A Moving Boundary Flux Stabilization Method for Cartesian Cut-Cell Grids using Directional Operator Splitting

open access: yes, 2018
An explicit moving boundary method for the numerical solution of time-dependent hyperbolic conservation laws on grids produced by the intersection of complex geometries with a regular Cartesian grid is presented.
Aftosmis   +77 more
core   +1 more source

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