Güncel Gönderiler: Piri Reis University Institutional Repository
Toplam kayıt 1750, listelenen: 1581-1600
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Investigation of particle size effect on film formation of polystyrene latexes using fluorescence technique
(Elsevier Science Bv, 2016)This study reports the particle size effects on the film formation behavior of pyrene labeled polystyrene (PS) latexes by a combination of steady state fluorescence (SSF), UV-vis (UVV) and atomic force microscopy (AFM) ... -
Synthesis, properties and enzymatic biodegradation behavior of fluorinated poly(epsilon-caprolactone)s
(Budapest Univ Technol & Econ, 2020)This study reports on the synthesis of new fluoro functionalized poly(epsilon-caprolactone)s (F-PCLs) via ring-opening polymerization (ROP) of epsilon-caprolactone (epsilon-CL) for different time intervals (24 and 48 h.) ... -
Structural characterization, solvent effects on nuclear magnetic shielding tensors, experimental and theoretical DFT studies on the vibrational and NMR spectra of 3-(acrylamido)phenylboronic acid
(Elsevier, 2015)Structural elucidation of 3-(acrylamido)phenylboronic acid (C9H10BNO3) was carried out with 1H, 13C and HETCOR NMR techniques. Solvent effects on nuclear magnetic shielding tensors were examined with deuterated dimethyl ... -
Bio-based Poly(e-caprolactone) from Soybean-Oil Derived Polyol via Ring-Opening Polymerization
(Springer, 2020)In this work, a new series of bio-based poly(e-caprolactone)s (SBO-PCLs) is synthesized through ring-opening polymerization (ROP) of e-caprolactone (e-CL) using stannous octoate as a catalyst and hydroxylated soybean oil ... -
A Fluorescent Film Probe Based On Schiff Base For Determination of Fe3+ Ions
(2017)In this paper, fluorescent film probe based on Schiff base was easily prepared and it was used as fluorescence chemosensor for the detection of transition metal ions in aqueous medium. Fluorescence measurements were done ... -
Structure and Raman Spectra in Cryolitic Melts: Simulations with an ab Initio Interaction Potential
(Amer Chemical Soc, 2014)The Raman spectra of cryolitic melts have been calculated from molecular dynamics computer simulations using a polarizable ionic potential obtained by force-fitting to ab initio electronic structure calculations. Simulations ... -
Condensation of two-dimensional harmonically confined bosons with Bessel-type interactions
(Amer Physical Soc, 2011)We study the ground-state configurations of few interacting bosons confined in two dimensions by anisotropic harmonic potentials. By means of variational calculations, including correlation effects, we show that the ... -
Localization-delocalization transition in the random dimer model
(Amer Physical Soc, 2010)The random-dimer model is probably the most popular model for a one-dimensional disordered system where correlations are responsible for delocalization of the wave functions. This is the primary model used to justify the ... -
Dynamical instability of a boson-fermion mixture at low dimensions
(Elsevier Science Bv, 2009)We examine theoretically the dynamical response of a homogeneous mixture of condensed bosons and spin-polarized fermions confined inside a quasi-two-dimensional or a quasi-one-dimensional geometry, considering quasi-thre ... -
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 ...
