oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 244 )

2018 ( 1395 )

2017 ( 1380 )

2016 ( 1937 )

Custom range...

Search Results: 1 - 10 of 816626 matches for " G.A. Méndez-Maldonado "
All listed articles are free for downloading (OA Articles)
Page 1 /816626
Display every page Item
Phase equilibria and interfacial properties of two-dimensional Yukawa fluids
G.A. Méndez-Maldonado,M. González-Melchor,J. Alejandre
Condensed Matter Physics , 2012,
Abstract: Molecular dynamics simulations of two-dimensional soft Yukawa fluids are performed to analyze the effect that the range of interaction has on coexisting densities and line tension. The attractive one-component fluid and equimolar mixtures containing positive and negative particles are studied at different temperatures to locate the region where the vapor-solid and vapor-liquid phases are stable. When the range of interaction decreases, the critical temperature of the attractive one-component systems decreases. However, for the charged mixtures it increases, and this opposite behaviour is understood in terms of the repulsive interactions which are dominant for these systems. The stable phase diagram of two-dimensional fluids is defined for smaller values of the decay parameter λ than that of fluids in three dimensions. The two-dimensional attractive one-component fluid has stable liquid-vapor phase diagram for values of λ, in contrast to the three-dimensional case, where stability has been observed even for values of λ < 15. The same trend is observed in equimolar mixtures of particles carrying opposite charges.
On the centre of mass velocity in molecular dynamics simulations
G.A. Méndez-Maldonado,M. González-Melchor,J. Alejandre,G.A. Chapela
Revista mexicana de física , 2012,
Abstract: Realizamos simulaciones de dinámica molecular en fluidos a condiciones supercríticas para analizar el efecto que la velocidad del centro de masa (VCM) del sistema tiene sobre la temperatura y la estabilidad de fases. Escalamiento estándar de velocidades y cadenas de Nosé-Hoover son usados como métodos de termostato para realizar simulaciones en modelos de potencial de pozo cuadrado, Lennard-Jones y el modelo primitivo suave. Remover la VCM al inicio o durante la simulación no es requerido para que el termostato de cadenas de Nosé-Hoover mantenga la temperatura correcta del sistema, sin embargo es fundamental mantener nula la VCM cuando se usa el esquema tradicional de escalamiento de velocidades. Se muestra que si la VCM es removida sólo al inicio de la simulación las temperaturas interna y externa no son iguales para tiempos de simulación muy grandes y el sistema se solidifica. La temperatura y las propiedades físicas obtenidas usando el método de cadenas de Nosé-Hoover son iguales a aquellas obtenidas usando escalamiento de velocidades donde se remueve la VCM durante la simulación.
Phase equilibria and interfacial properties of two-dimensional Yukawa fluids
G. A. Méndez-Maldonado,M. González-Melchor,J. Alejandre
Physics , 2012, DOI: 10.5488/CMP.15.23002
Abstract: Molecular dynamics simulations of two-dimensional soft Yukawa fluids are performed to analyze the effect that the range of interaction has on coexisting densities and line tension. The attractive one-component fluid and equimolar mixtures containing positive and negative particles are studied at different temperatures to locate the region where the vapor-solid and vapor-liquid phases are stable. When the range of interaction decreases, the critical temperature of the attractive one-component systems decreases. However, for the charged mixtures it increases, and this opposite behaviour is understood in terms of the repulsive interactions which are dominant for these systems. The stable phase diagram of two-dimensional fluids is defined for smaller values of the decay parameter \lambda\ than that of fluids in three dimensions. The two-dimensional attractive one-component fluid has stable liquid-vapor phase diagram for values of \lambda<3, in contrast to the three-dimensional case, where stability has been observed even for values of \lambda<15. The same trend is observed in equimolar mixtures of particles carrying opposite charges.
Strain balanced quantum posts
D. Alonso-álvarez,B. Alén,J. M. Ripalda,J. Llorens,A. G. Taboada,F. Briones,M. A. Roldán,J. Hernández-Saz,D. Hernández-Maldonado,M. Herrera,S. I. Molina
Physics , 2011, DOI: 10.1063/1.3583455
Abstract: Quantum posts are assembled by epitaxial growth of closely spaced quantum dot layers, modulating the composition of a semiconductor alloy, typically InGaAs. In contrast with most self-assembled nanostructures, the height of quantum posts can be controlled with nanometer precision, up to a maximum value limited by the accumulated stress due to the lattice mismatch. Here we present a strain compensation technique based on the controlled incorporation of phosphorous, which substantially increases the maximum attainable quantum post height. The luminescence from the resulting nanostructures presents giant linear polarization anisotropy.
Linguistic issues in reports about the Lisbon Earthquake of 1755, typical of pre-journalistic speech Aspectos lingüísticos propios del discurso pre-periodístico en las relaciones sobre el Terremoto de Lisboa de 1755
Elena LEAL ABAD,Elena MéNDEZ G.a DE PAREDES
Cuadernos Dieciochistas , 2013,
Abstract: The reports that constitute the corpus of study for this work describe the devastating effects of the Lisbon earthquake of 1755. The fact that natural disasters are a thematic invariant of informative discourse will allow us better to trace the evolution of the syntax used in this type of discourse. It should be noted, however, that not all reports have the same syntactic formation: some belong fully to what we could call the discourse of modernity, more closely connected, therefore, with the language of journalistic discourse today. Others, notwithstanding the date, have a more archaic and extremely complex syntax, which cannot be taken as the origin of modern expository discourse. This analysis will provide a clear evidential basis that will serve as a starting point to then analyse the evolution of journalistic language in relation to the textual changes that would gradually consolidate new information genres. Las relaciones que constituyen el corpus de estudio para este trabajo relatan los efectos devastadores del terremoto de Lisboa de 1755. El hecho de que las catástrofes naturales sean una invariante temática del discurso informativo permitirá rastrear mejor la evolución de la sintaxis de este tipo de discurso. No obstante, hay que tener en cuenta que no todas tienen la misma conformación sintáctica: unas pertenecen de lleno a lo que podríamos llamar el discurso de la modernidad, más entroncadas, por tanto, con la lengua del discurso periodístico actual. Otras, pese a la fecha, tienen una sintaxis más arcaizante y extremadamente compleja, incapaz de ser tenidas como origen del discurso informativo. De este análisis se obtendrá una base empírica clara que servirá de punto de partida para analizar luego la evolución de la lengua periodística en relación con los cambios textuales que irán consolidando nuevos géneros informativos.
P.J.A. van Meegeren, Katholiek Utrecht in de tweede helft van de 19e eeuw
G.A.M. Beekelaar
BMGN : Low Countries Historical Review , 1989,
Abstract:
H. van Fekius, H.J. Metselaars, Noordhollandse statenleden 1840-1919
G.A.M. Beekelaar
BMGN : Low Countries Historical Review , 1995,
Abstract:
J.W.M. Peijnenburg, Judocus Smits en zijn tijd, I, Tekst, II, Chronologische inventaris van brieven en artikelen van Judocus Smit
G.A.M. Beekelaar
BMGN : Low Countries Historical Review , 1979,
Abstract:
H.A.V.M. van Stekelenburg, Landverhuizing als regionaal verschijnsel. Van Noord-Brabant naar Noord-Amerika 1820-1880
G.A.M. Beekelaar
BMGN : Low Countries Historical Review , 1993,
Abstract:
C.A. Tamse, Koningin Sophie 1818-1877. Jeugdherinneringen in Biedermeierstijl van een Nederlandse vorstin uit Wurtemberg
H.S. Haasse, S.W. Jackman, Een vreemdelinge in Den Haag. Uit de brieven van koningin Sophie der Nederlanden aan Lady Malet

G.A.M. Beekelaar
BMGN : Low Countries Historical Review , 1987,
Abstract:
Page 1 /816626
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.