Güncel Gönderiler: Scopus İndeksli Yayınlar Koleksiyonu
Toplam kayıt 1319, listelenen: 1221-1240
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Condensate oscillations oscillations in a Penrose tiling lattice
(Elsevier Science Bv, 2017)We study the dynamics of a Bose-Einstein condensate subject to a particular Penrose tiling lattice. In such a lattice, the potential energy at each site depends on the neighbour sites, accordingly to.the model introduced ... -
Anderson localization in optical lattices with speckle disorder
(Amer Physical Soc, 2011)We study the localization properties of noninteracting waves propagating in a speckle-like potential superposed on a one-dimensional lattice. Using a combined decimation-renormalization procedure, we estimate the localization ... -
Investigation of vibrational, elastic and dielectric properties of cubic gauche nitrogen (cg-N)
(Elsevier GmbH, 2021)Vibrational, elastic and dielectric properties of the cubic gauche nitrogen (cg-N) are investigated by analyzing the Raman optic and zone-center phonon modes using the literature data. From the pressure dependence of those ... -
Calculation of the inverse relaxation time and the activation energy as a function of temperature for the Raman modes close to the phase transitions in solid nitrogen
(Elsevier, 2021)The inverse relaxation time is calculated as a function of temperature for the transitions of alpha - beta (P = 0) and epsilon-delta(loc)-delta (at constant pressures) in the solid N-2. For this calculation, the observed ... -
Liquid-(Solid plus Liquid) Transitions in a Two-Component System of (CH3)CCl3 + CCl4
(Springer/Plenum Publishers, 2020)Liquid-(solid + liquid) transitions are studied in (CH3)CCl3 + CCl4 by using the Landau phenomelogical model. The Gibbs energy is expanded in terms of the orientational disorder (OD) parameters for the transitions of the ... -
Calculation of the Raman and IR frequencies from the volume data at high pressures in N-2
(Elsevier Gmbh, Urban & Fischer Verlag, 2018)Raman and IR frequencies of N-2 in the molecular state are calculated as a function of pressure up to 160 GPa by using the volume data from the literature through the mode Gruneisen parameter. By determining the Gruneisen ... -
Fluorescence study of film formation from PS/Al2O3 nanocomposites
(Elsevier Science Sa, 2014)Steady state fluorescence (SSF) and UV-vis (UVV) techniques were used to study the film formation behavior of pyrene (P) labeled polystyrene (PS) latex and Al2O3 (PS/Al2O3) composites depending on PS particles size and ... -
Calculation of the thermodynamic functions from the Raman frequency shifts close to the epsilon - delta(loc) - delta transitions and Pippard relations in nitrogen
(World Scientific Publ Co Pte Ltd, 2020)Thermodynamic functions of the thermal expansion (alpha(p)), isothermal compressibility (kappa(T)) and the difference in the heat capacity (C-p - C-v) are calculated as a function of temperature (P = 18 GPa) close to the ... -
Calculation of the Raman frequency and linewidth of vibrons using anharmonic self energy model for the epsilon , delta(loc) and delta phases in solid nitrogen
(Elsevier Gmbh, 2020)Temperature dependences of the Raman frequency shifts and linewidths of vibrons nu(1), nu(2) and nu(22) are calculated from the anharmonic self energy in the epsilon, delta(loc) (localized delta) and delta phases of solid ... -
Calculation of the Thermodynamic Functions Using A Mean Field Model For the Fluid-Solid Transition in Nitrogen
(Editura Acad Romane, 2020)Temperature and pressure dependence of the thermodynamic quantities are calculated using the Landau phenomenological model for the first order fluid-solid transition in nitrogen. This calculation is performed by fitting ... -
High-resolution birefringence investigation of octylcyanobiphenyl (8CB): An upper bound on the discontinuity at the smectic-A to nematic phase transition
(Amer Physical Soc, 2013)We report optical birefringence data by two different methods with high temperature resolution for octylcyanobiphenyl (8CB) near the smectic-A to nematic (Sm-A-N) phase transition temperature T-AN. Within the resolution ... -
Study of Film Formation From PS Latex/TiO2 Nanocomposites; Effect of Latex Size and TiO2 Content
(Wiley, 2014)In this work, we investigated the film formation from polystyrene (PS) latex/TiO2 nanocomposites using the steady state fluorescence (SSF) and UV-vis (UVV) techniques depending on PS particle size and TiO2 content. The ... -
Theoretical insight of alpha amino acid phenylalanine adsorption on pristine and decorated fullerenes
(Walter De Gruyter Gmbh, 2019)Fullerenes, with their extensive application potentials, have been receiving attention for their possible usage as drug delivery vehicles and devices for sensor technologies. In this work, the optimized molecular geometries, ... -
Molecular, vibrational and electronic structure of 4-bromo-2-halogenobenzaldehydes: Halogen and solvent effects
(Walter De Gruyter Gmbh, 2017)The halogen and solvent effects on the structure of 4-bromo-2-halogenobenzaldehydes [C7H4BrXO; X = F (BFB), Cl (BCB) or Br (BBB)] were investigated by the density functional theory (DFT) and time-dependent density functional ... -
Fluorescence study of effect of particle size in PS latex/Al2O3 nanocomposite films
(Maney Publishing, 2015)Steady state fluorescence and BioUV-Visible techniques were used to study film formation of polystyrene (PS) latex and Al2O3 composites depending on PS particles size and Al2O3 content. Two film series (SmPS/Al2O3 and ... -
A simple method to determine high-accuracy refractive indices of liquid crystals and the temperature behavior of the related optical parameters via high-resolution birefringence data
(Elsevier, 2014)We report new high-resolution experimental data for the optical birefringence over the temperature range spanning the nematic (N) and smectic A (Sm A) phases of various liquid crystals (LCs) by means of a rotating-analyzer ... -
A case study on oil pollution in Istanbul Strait: Revisiting 1994 Nassia tanker accident by utilising Potential Incident Simulation Control and Evaluation System (PISCES-II) simulation. What would be different in terms of response if Nassia accident happened today?
(Pergamon-Elsevier Science Ltd, 2020)Turkey, with her two important straits, is geographically in the middle of one of the major transportation routes and will continue to face risks the oil tankers pose in those sensitive areas. This paper revisits the site ... -
Calculation of the Phase Diagrams For the Fluid-Solid and Solid-Solid (Delta-Delta(Loc)-Epsilon) Transitions in Molecular Nitrogen By Using Mean Field Model
(Editura Acad Romane, 2019)The temperature-pressure (T-P) phase diagrams are calculated using the mean field models for the solid-fluid (first order) and, the solid-solid transitions of the delta-delta(loc) (second order) and delta(loc)-epsilon ... -
Vibrational spectra, DFT calculations, conformational stabilities and assignments of the fundamentals of the 1-butylpiperazine
(Elsevier Science Bv, 2016)FT-IR and FT-Raman spectra of 1-butylpiperazine (1bpa) were experimentally recorded in the region of 4000-10 cm(-1) and 4000-100 cm(-1), respectively. The optimized geometric parameters, conformational equilibria, normal ...
