... conditions R Florido 1,2 , R Rodrıguez 1,2 , JM Gil 1,2 , JG Rubiano 1,2 , P Martel 1,2 , D S... more ... conditions R Florido 1,2 , R Rodrıguez 1,2 , JM Gil 1,2 , JG Rubiano 1,2 , P Martel 1,2 , D Suárez 1 , M Mendoza 1 and E Mınguez 2 ... For dense plasmas the lowering of the ionization potential is taken into account following the formulation of Stewart and Pyatt [6]. 2.2. ...
A detailed derivation of the Lattice Boltzmann (LB) scheme for relativistic fluids recently propo... more A detailed derivation of the Lattice Boltzmann (LB) scheme for relativistic fluids recently proposed in Ref. [1], is presented. The method is numerically validated and applied to the case of two quite different relativistic fluid dynamic problems, namely shock-wave propagation in quark-gluon plasmas and the impact of a supernova blast-wave on massive interstellar clouds. Close to second order convergence with the grid resolution, as well as linear dependence of computational time on the number of grid points and time-steps, are reported.
A detailed derivation of the lattice Boltzmann scheme for relativistic fluids recently proposed i... more A detailed derivation of the lattice Boltzmann scheme for relativistic fluids recently proposed in M. Mendoza, B. Boghosian, H. Herrmann, and S. Succi, Phys. Rev. Lett. 105, 014502 (2010)PRLTAO0031-900710.1103/PhysRevLett.105.014502 is presented. The method is numerically validated and applied to the case of two quite different relativistic fluid-dynamic problems, namely, shock-wave propagation in quark-gluon plasmas and the impact of a supernova blast wave on massive interstellar clouds. Close to second-order convergence with the grid resolution, as well as linear dependence of computational time on the number of grid points and time steps, are reported.
A Lattice Boltzmann formulation for relativistic fluids is presented and numerically verified thr... more A Lattice Boltzmann formulation for relativistic fluids is presented and numerically verified through quantitative comparison with recent hydrodynamic simulations of relativistic shock-wave propagation in viscous quark-gluon plasmas. This formulation opens up the possibility of exporting the main advantages of Lattice Boltzmann methods to the relativistic context, which seems particularly useful for the simulation of relativistic fluids in complicated geometries.
In this paper, we study and characterize the cracking behavior of a sol-gel-derived amorphous sil... more In this paper, we study and characterize the cracking behavior of a sol-gel-derived amorphous silica film on a InP substrate. The sol-gel silica films are deposited by spin-coating and rapid thermal processing (RTP). It is observed that the volatility of the III-V semiconductor results in the cracking of the films when the annealing temperature is higher than 450 °C, and that the crack patterns are all parallel or perpendicular to . The experimental results on the crack patterns in the sol-gel silica films are then theoretically analyzed. In addition, the critical thicknesses of the sol-gel films on InP are compared with those deposited on Si.
In the new nanotechnology devices design, the stability of the systems is very important, in the ... more In the new nanotechnology devices design, the stability of the systems is very important, in the present work we report evidences of internal and external changes of nanoparticles passivated by thiol molecules when they are irradiated under a high flux of an electron beam in the transmission electron microscope. High Resolution images were digitized and processed in order to identify the contrast changes produced by the atomic inside the nanoparticles. Fcc and decahedral nanoparticles cases are shown. Molecular dynamics calculations are also included in order to compare the experimental evidences with the cluster conditions of stabilities. Both theoretical and experimental results imply the occurrence of atomic and twining movements, and indicate that the n-alkyl thiol molecules prevent atomic movement and changes on the particle structure are not observed.
... conditions R Florido 1,2 , R Rodrıguez 1,2 , JM Gil 1,2 , JG Rubiano 1,2 , P Martel 1,2 , D S... more ... conditions R Florido 1,2 , R Rodrıguez 1,2 , JM Gil 1,2 , JG Rubiano 1,2 , P Martel 1,2 , D Suárez 1 , M Mendoza 1 and E Mınguez 2 ... For dense plasmas the lowering of the ionization potential is taken into account following the formulation of Stewart and Pyatt [6]. 2.2. ...
A detailed derivation of the Lattice Boltzmann (LB) scheme for relativistic fluids recently propo... more A detailed derivation of the Lattice Boltzmann (LB) scheme for relativistic fluids recently proposed in Ref. [1], is presented. The method is numerically validated and applied to the case of two quite different relativistic fluid dynamic problems, namely shock-wave propagation in quark-gluon plasmas and the impact of a supernova blast-wave on massive interstellar clouds. Close to second order convergence with the grid resolution, as well as linear dependence of computational time on the number of grid points and time-steps, are reported.
A detailed derivation of the lattice Boltzmann scheme for relativistic fluids recently proposed i... more A detailed derivation of the lattice Boltzmann scheme for relativistic fluids recently proposed in M. Mendoza, B. Boghosian, H. Herrmann, and S. Succi, Phys. Rev. Lett. 105, 014502 (2010)PRLTAO0031-900710.1103/PhysRevLett.105.014502 is presented. The method is numerically validated and applied to the case of two quite different relativistic fluid-dynamic problems, namely, shock-wave propagation in quark-gluon plasmas and the impact of a supernova blast wave on massive interstellar clouds. Close to second-order convergence with the grid resolution, as well as linear dependence of computational time on the number of grid points and time steps, are reported.
A Lattice Boltzmann formulation for relativistic fluids is presented and numerically verified thr... more A Lattice Boltzmann formulation for relativistic fluids is presented and numerically verified through quantitative comparison with recent hydrodynamic simulations of relativistic shock-wave propagation in viscous quark-gluon plasmas. This formulation opens up the possibility of exporting the main advantages of Lattice Boltzmann methods to the relativistic context, which seems particularly useful for the simulation of relativistic fluids in complicated geometries.
In this paper, we study and characterize the cracking behavior of a sol-gel-derived amorphous sil... more In this paper, we study and characterize the cracking behavior of a sol-gel-derived amorphous silica film on a InP substrate. The sol-gel silica films are deposited by spin-coating and rapid thermal processing (RTP). It is observed that the volatility of the III-V semiconductor results in the cracking of the films when the annealing temperature is higher than 450 °C, and that the crack patterns are all parallel or perpendicular to . The experimental results on the crack patterns in the sol-gel silica films are then theoretically analyzed. In addition, the critical thicknesses of the sol-gel films on InP are compared with those deposited on Si.
In the new nanotechnology devices design, the stability of the systems is very important, in the ... more In the new nanotechnology devices design, the stability of the systems is very important, in the present work we report evidences of internal and external changes of nanoparticles passivated by thiol molecules when they are irradiated under a high flux of an electron beam in the transmission electron microscope. High Resolution images were digitized and processed in order to identify the contrast changes produced by the atomic inside the nanoparticles. Fcc and decahedral nanoparticles cases are shown. Molecular dynamics calculations are also included in order to compare the experimental evidences with the cluster conditions of stabilities. Both theoretical and experimental results imply the occurrence of atomic and twining movements, and indicate that the n-alkyl thiol molecules prevent atomic movement and changes on the particle structure are not observed.
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