Browsing Bildiri Koleksiyonu by Publisher "Elsevier Science BV"
Now showing items 1-12 of 12
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Adsorption and solid phase extraction of 8-hydroxyquinoline from aqueous solutions by using natural bentonite
(Elsevier Science BV, 2010)The nitrogen-heterocyclic compound 8-hydroxyquinoline (8HQ) is one of the components of coal tar and has a wide variety of uses in industry. Because of its toxicity for aquatic organisms and harmful effects for human health, ... -
Adsorption behavior of a textile dye of Reactive Blue 19 from aqueous solutions onto modified bentonite
(Elsevier Science BV, 2010)The aim of this study is to evaluate adsorption kinetics, isotherms and thermodynamic parameters of Reactive Blue 19 (RB19) onto modified bentonite from aqueous solutions. The effects of pH, contact time, initial dye ... -
Adsorption characteristics of lead(II) ions onto the clay/poly(methoxyethyl)acrylamide (PMEA) composite from aqueous solutions
(Elsevier Science BV, 2008)The presence of heavy metals in the aquatic environment has been a big deal to scientists due to their increased discharge, toxic nature, and other adverse effects on receiving waters. Even a very low concentration of lead ... -
Adsorption kinetics of naphthalene onto organo-sepiolite from aqueous solutions
(Elsevier Science BV, 2008)In this study, the adsorption kinetics of naphthalene onto organically modified-sepiolite was investigated by means of the effects of pH, contact time, adsorbent dosage and temperature. The modification of natural sepiolite ... -
Effect of tri-sodium citrate concentration on structural, optical and electrical properties of chemically deposited tin sulfide films
(Elsevier Science BV, 2014)Tin sulfide thin films were deposited onto glass substrates by chemical bath deposition. The effects of molar concentration of the complexing agent, tri-sodium citrate, on the structural, morphological, optical and electrical ... -
Electronic and optical properties of 4.2 mu m"N" structured superlattice MWIR photodetectors
(Elsevier Science BV, 2013)We report on the development of a new structure for type II superlattice photodiodes that we call the "N" design. In this new design, we insert an electron barrier between InAs and GaSb in the growth direction. The barrier ... -
In situ direct photoproduction of ketenes from substituted coumarins isolated in solid argon: The case of N-(2-oxo-2H-chromen-3-yl)acetamide
(Elsevier Science BV, 2009)In this study, the infrared spectrum of N-(2-oxo-2H-chromen-3-yl)acetamide (3-acetamidocoumarin; 3AC) isolated in solid argon, at 10 K, was obtained and assigned. In consonance with the relative energies of the three ... -
Magnetoresistance properties of Co-added MgB2 tapes prepared by PIT method
(Elsevier Science BV, 2007)The (MgB2)(1-x)COx tapes, where x = 0.0, 0.01, 0.03 and 0.05, were prepared using powder-in-tube (PIT) method. The magnetoresistance properties of the samples were investigated under applied magnetic field of 0-6 T. The ... -
Nanolabel for TNF-alpha determination
(Elsevier Science BV, 2013)Tumor necrosis factor-alpha (TNF-alpha), also known as cachectin, is one of the most important regulatory cytokines and mediates a variety of cell functions, including the stimulation of nitric oxide (NO) production which ... -
Phonon frequency variations in high quality InAs1-xSbx epilayers grown on GaAs
(Elsevier Science BV, 2014)Undoped InAs1-xSbx epilayers with different compositions (0.55 <= x <= 0.78) were grown by molecular beam epitaxy on semi-insulating GaAs (1 0 0) substrates. The quality of the samples was determined by high resolution ... -
Self-consistent calculations of isospin admixtures in the ground states of the N = Z nuclei in the mass region of 50-100
(Elsevier Science BV, 2007)In the present study, based on spherical shell-model wave functions and energies with the pairing and the residual Fermi interaction treated in pn QRPA, the isospin admixture probabilities in the ground state of N = Z ... -
Zero-bias offsets in I-V characteristics of the staircase type quantum well infrared photodetectors
(Elsevier Science BV, 2014)In this work, observed zero-bias offsets in I-V characteristics and differences in J-V characteristics of staircase quantum well infrared photodetectors were investigated. Temperature and voltage sweep rate dependence of ...