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Martin Aznar - One of the best experts on this subject based on the ideXlab platform.

  • density Refraction Index and vapor liquid equilibria of n methyl 2 hydroxyethylammonium butyrate plus methyl acetate or ethyl acetate or propyl acetate at several temperatures
    The Journal of Chemical Thermodynamics, 2013
    Co-Authors: Victor H Alvarez, Silvana Mattedi, Martin Aznar
    Abstract:

    Abstract This paper reports the densities, Refraction indices, and vapor liquid equilibria for binary systems ester + N-methyl-2-hydroxyethylammonium butyrate (m-2-HEAB): methyl acetate (1) + m-2-HEAB (2), ethyl acetate (1) + m-2-HEAB and propyl acetate (1) + m-2-HEAB (2). The excess molar volumes, deviations in the Refraction Index, apparent molar volumes, and thermal expansion coefficients for the binary systems were fitted to polynomial equations. The Peng–Robinson equation of state, coupled with the Wong–Sandler mixing rule, is used to describe the experimental data. Since the predictive activity coefficient model COSMO-SAC is used in the Wong–Sandler mixing rule, the resulting thermodynamic model is a completely predictive one. The prediction results for the density and for the vapor–liquid equilibria have a deviation lower than 1.0% and 1.1%, respectively.

  • density Refraction Index and vapor liquid equilibria of n methyl 2 hydroxyethylammonium hexanoate plus methyl acetate ethyl acetate or propyl acetate at several temperatures
    Industrial & Engineering Chemistry Research, 2012
    Co-Authors: Victor H Alvarez, Silvana Mattedi, Martin Aznar
    Abstract:

    This paper reports the densities, Refraction indices, and vapor liquid equilibria for binary systems ester + n-methyl2-hydroxyethylammonium hexanoate (m-2-HEAH): methyl acetate (1) + m-2-HEAH (2), ethyl acetate (1) + m-2-HEAH, and propyl acetate (1) + m-2-HEAH (2). The excess molar volumes, deviations in the Refraction Index, apparent molar volume, and thermal expansion coefficient for the binary systems were fitted to polynomial equations. The Peng—Robinson equation of state, coupled with the Wong―Sandler mixing rule, is used to describe the experimental data. Since the predictive activity coefficient model COSMO-SAC is used in the Wong—Sandler mixing rule, the resulting thermodynamic model is a completely predictive one. The prediction results for the density and for the vapor―liquid equilibria have a deviation lower than 1.6% and 1.1%, respectively.

  • density Refraction Index and vapor liquid equilibria of n methyl 2 hydroxyethylammonium hexanoate plus methyl acetate ethyl acetate or propyl acetate at several temperatures
    Industrial & Engineering Chemistry Research, 2012
    Co-Authors: V Alvarez, Silvana Mattedi, Martin Aznar
    Abstract:

    This pap er reports the densities, Refraction indices, and vapor liquid equilibria for binary systems ester + N-methyl-2-hydroxyethylammonium butyrat e (m-2-HEAB): methyl acetate (1) + m-2-HEAB (2), ethyl acetate (1) + m-2-HEAB and propy l acetate (1) + m-2-HEAB (2). The excess molar volumes, deviations in the Refraction Index, apparent molar volumes, and thermal expansion coefficients for the binary systems were fitted to polynomial equations. The Peng–Robinson equation of state, coupled with the Wong–Sandler mixing rule, is used to describe the experimen tal data. Since the predictive activity coefficient model COSMO-SAC is used in the Wong–Sandler mixing rule, the resulting thermodynamic model is a completely predictive one. The prediction results for the density and for the vapor–liquid equilibria have a deviation lower than 1.0% and 1.1%, respectively.

Silvana Mattedi - One of the best experts on this subject based on the ideXlab platform.

  • density Refraction Index and vapor liquid equilibria of n methyl 2 hydroxyethylammonium butyrate plus methyl acetate or ethyl acetate or propyl acetate at several temperatures
    The Journal of Chemical Thermodynamics, 2013
    Co-Authors: Victor H Alvarez, Silvana Mattedi, Martin Aznar
    Abstract:

    Abstract This paper reports the densities, Refraction indices, and vapor liquid equilibria for binary systems ester + N-methyl-2-hydroxyethylammonium butyrate (m-2-HEAB): methyl acetate (1) + m-2-HEAB (2), ethyl acetate (1) + m-2-HEAB and propyl acetate (1) + m-2-HEAB (2). The excess molar volumes, deviations in the Refraction Index, apparent molar volumes, and thermal expansion coefficients for the binary systems were fitted to polynomial equations. The Peng–Robinson equation of state, coupled with the Wong–Sandler mixing rule, is used to describe the experimental data. Since the predictive activity coefficient model COSMO-SAC is used in the Wong–Sandler mixing rule, the resulting thermodynamic model is a completely predictive one. The prediction results for the density and for the vapor–liquid equilibria have a deviation lower than 1.0% and 1.1%, respectively.

  • density Refraction Index and vapor liquid equilibria of n methyl 2 hydroxyethylammonium hexanoate plus methyl acetate ethyl acetate or propyl acetate at several temperatures
    Industrial & Engineering Chemistry Research, 2012
    Co-Authors: Victor H Alvarez, Silvana Mattedi, Martin Aznar
    Abstract:

    This paper reports the densities, Refraction indices, and vapor liquid equilibria for binary systems ester + n-methyl2-hydroxyethylammonium hexanoate (m-2-HEAH): methyl acetate (1) + m-2-HEAH (2), ethyl acetate (1) + m-2-HEAH, and propyl acetate (1) + m-2-HEAH (2). The excess molar volumes, deviations in the Refraction Index, apparent molar volume, and thermal expansion coefficient for the binary systems were fitted to polynomial equations. The Peng—Robinson equation of state, coupled with the Wong―Sandler mixing rule, is used to describe the experimental data. Since the predictive activity coefficient model COSMO-SAC is used in the Wong—Sandler mixing rule, the resulting thermodynamic model is a completely predictive one. The prediction results for the density and for the vapor―liquid equilibria have a deviation lower than 1.6% and 1.1%, respectively.

  • density Refraction Index and vapor liquid equilibria of n methyl 2 hydroxyethylammonium hexanoate plus methyl acetate ethyl acetate or propyl acetate at several temperatures
    Industrial & Engineering Chemistry Research, 2012
    Co-Authors: V Alvarez, Silvana Mattedi, Martin Aznar
    Abstract:

    This pap er reports the densities, Refraction indices, and vapor liquid equilibria for binary systems ester + N-methyl-2-hydroxyethylammonium butyrat e (m-2-HEAB): methyl acetate (1) + m-2-HEAB (2), ethyl acetate (1) + m-2-HEAB and propy l acetate (1) + m-2-HEAB (2). The excess molar volumes, deviations in the Refraction Index, apparent molar volumes, and thermal expansion coefficients for the binary systems were fitted to polynomial equations. The Peng–Robinson equation of state, coupled with the Wong–Sandler mixing rule, is used to describe the experimen tal data. Since the predictive activity coefficient model COSMO-SAC is used in the Wong–Sandler mixing rule, the resulting thermodynamic model is a completely predictive one. The prediction results for the density and for the vapor–liquid equilibria have a deviation lower than 1.0% and 1.1%, respectively.

Victor H Alvarez - One of the best experts on this subject based on the ideXlab platform.

  • density Refraction Index and vapor liquid equilibria of n methyl 2 hydroxyethylammonium butyrate plus methyl acetate or ethyl acetate or propyl acetate at several temperatures
    The Journal of Chemical Thermodynamics, 2013
    Co-Authors: Victor H Alvarez, Silvana Mattedi, Martin Aznar
    Abstract:

    Abstract This paper reports the densities, Refraction indices, and vapor liquid equilibria for binary systems ester + N-methyl-2-hydroxyethylammonium butyrate (m-2-HEAB): methyl acetate (1) + m-2-HEAB (2), ethyl acetate (1) + m-2-HEAB and propyl acetate (1) + m-2-HEAB (2). The excess molar volumes, deviations in the Refraction Index, apparent molar volumes, and thermal expansion coefficients for the binary systems were fitted to polynomial equations. The Peng–Robinson equation of state, coupled with the Wong–Sandler mixing rule, is used to describe the experimental data. Since the predictive activity coefficient model COSMO-SAC is used in the Wong–Sandler mixing rule, the resulting thermodynamic model is a completely predictive one. The prediction results for the density and for the vapor–liquid equilibria have a deviation lower than 1.0% and 1.1%, respectively.

  • density Refraction Index and vapor liquid equilibria of n methyl 2 hydroxyethylammonium hexanoate plus methyl acetate ethyl acetate or propyl acetate at several temperatures
    Industrial & Engineering Chemistry Research, 2012
    Co-Authors: Victor H Alvarez, Silvana Mattedi, Martin Aznar
    Abstract:

    This paper reports the densities, Refraction indices, and vapor liquid equilibria for binary systems ester + n-methyl2-hydroxyethylammonium hexanoate (m-2-HEAH): methyl acetate (1) + m-2-HEAH (2), ethyl acetate (1) + m-2-HEAH, and propyl acetate (1) + m-2-HEAH (2). The excess molar volumes, deviations in the Refraction Index, apparent molar volume, and thermal expansion coefficient for the binary systems were fitted to polynomial equations. The Peng—Robinson equation of state, coupled with the Wong―Sandler mixing rule, is used to describe the experimental data. Since the predictive activity coefficient model COSMO-SAC is used in the Wong—Sandler mixing rule, the resulting thermodynamic model is a completely predictive one. The prediction results for the density and for the vapor―liquid equilibria have a deviation lower than 1.6% and 1.1%, respectively.

V Alvarez - One of the best experts on this subject based on the ideXlab platform.

  • density Refraction Index and vapor liquid equilibria of n methyl 2 hydroxyethylammonium hexanoate plus methyl acetate ethyl acetate or propyl acetate at several temperatures
    Industrial & Engineering Chemistry Research, 2012
    Co-Authors: V Alvarez, Silvana Mattedi, Martin Aznar
    Abstract:

    This pap er reports the densities, Refraction indices, and vapor liquid equilibria for binary systems ester + N-methyl-2-hydroxyethylammonium butyrat e (m-2-HEAB): methyl acetate (1) + m-2-HEAB (2), ethyl acetate (1) + m-2-HEAB and propy l acetate (1) + m-2-HEAB (2). The excess molar volumes, deviations in the Refraction Index, apparent molar volumes, and thermal expansion coefficients for the binary systems were fitted to polynomial equations. The Peng–Robinson equation of state, coupled with the Wong–Sandler mixing rule, is used to describe the experimen tal data. Since the predictive activity coefficient model COSMO-SAC is used in the Wong–Sandler mixing rule, the resulting thermodynamic model is a completely predictive one. The prediction results for the density and for the vapor–liquid equilibria have a deviation lower than 1.0% and 1.1%, respectively.

K. Staliunas - One of the best experts on this subject based on the ideXlab platform.

  • signatures of light beam spatial filtering in a three dimensional photonic crystal
    Physical Review A, 2010
    Co-Authors: L. Maigyte, Martynas Peckus, Titas Gertus, Jose Trull, Valdas Sirutkaitis, C Cojocaru, K. Staliunas
    Abstract:

    We report experimental evidence of spatial filtering of light beams by three-dimensional, low-Refraction-Index-contrast photonic crystals. The photonic crystals were fabricated in a glass bulk, where the Refraction Index has been periodically modulated using tightly focused femtosecond laser pulses. We observe filtered areas in the angular distributions of the transmitted radiation, and we interpret the observations by theoretical and numerical study of light propagation in Index-modulated material in paraxial model.

  • spatial filtering of light by chirped photonic crystals
    Physical Review A, 2009
    Co-Authors: K. Staliunas, V J Sanchezmorcillo
    Abstract:

    We propose an efficient method for spatial filtering of light beams by propagating them through two-dimensional (also three dimensional) chirped photonic crystals, i.e., through the photonic structures with fixed transverse lattice period and with the longitudinal lattice period varying along the direction of the beam propagation. We prove the proposed idea by numerically solving the paraxial propagation equation in Refraction-Index--modulated media and we evaluate the efficiency of the process by harmonic-expansion analysis. The technique can be also applied for filtering (for cleaning) of the packages of atomic waves (Bose condensates), also to improve the directionality of acoustic and mechanical waves.

  • nondiffractive propagation of light in photonic crystals
    Physical Review E, 2006
    Co-Authors: K. Staliunas, R Herrero
    Abstract:

    We investigate nondiffractive propagation of electromagnetic radiation, including visible light, through materials with a periodic space modulation of the Refraction Index, i.e., through photonic crystals. We calculate analytically and numerically the regimes where the dominating order of diffraction vanishes, i.e., the light beams of arbitrary width propagate without diffractive broadening and, equivalently, arbitrary light patterns can propagate without diffractive ``smearing.'' We investigate the subdiffractive light propagation, where the propagation is governed by the higher (fourth) diffraction order, when the dominating order of diffraction vanishes.