Güncel Gönderiler: Bildiri Koleksiyonu
Toplam kayıt 95, listelenen: 61-80
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Dielectric Properties of Isotactic Polypropylene and Montmorillonite Nanocomposites
(IEEE, 2010)Polymer nanocomposites typically consist of inorganic particles dispersed in a polymer matrix. Layered-silicate-based polymer nanocomposites have great potential as low-cost, highperformance materials with various engineering ... -
Photovoltaic solar cell properties of CdxZn1-xO films prepared by sol-gel method
(Pergamon-Elsevier Science LTD, 2009)CdxZn1-xO films have been deposited by sol-gel spin-coating method onto glass substrates. The Cd/Zn ratio in solution was changed from 0 to 1. Zinc acetate dehydrates, cadmium acetate dehydrates, 2-methoxyethanol and ... -
Anti-precipitation effects of TiO2 and TiOSO4 on positive electrolyte of vanadium redox battery
(Pergamon-Elsevier Science LTD, 2017)In this study, the effects of TiO2 and TiOSO4 on the precipitation of the positive electrolyte of vanadium redox battery (VRB) systems were investigated. TiO2 and TiOSO4 were used as anti -precipitating agents for V(V) ... -
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 ... -
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 ... -
Effect of alpha- and gamma-alumina on the precipitation of positive electrolyte in vanadium redox battery
(Pergamon-Elsevier Science LTD, 2017)In this study, the effect of alpha-alumina (alpha-Al2O3) and gamma-alumina (gamma-Al2O3) on the precipitation of the positive electrolyte, which is one of the most important problems in vanadium redox battery (VRB) systems, ... -
Electrochemical investigation of the effects of V(V) and sulfuric acid concentrations on positive electrolyte for vanadium redox flow battery
(Pergamon-Elsevier Science LTD, 2016)0 In this study, the concentration effects of sulfuric acid solution and V(V) on positive electrolyte component of vanadium redox batteries were investigated by cyclic voltammetry and electrochemical impedance spectroscopy ... -
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 ... -
Low dark current N structure superlattice MWIR photodetectors
(Spie-Int Soc Optical Engineering, 2014)Commercially available read out integrated circuits (ROICs) require the FPA to have high dynamic resistance area product at zero bias (R(0)A) which is directly related to dark current of the detector. Dark current arises ... -
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 ... -
High quantum efficiency Type-II superlattice N-structure photodetectors with thin intrinsic layers
(Spie-Int Soc Optical Engineering, 2013)We report on the development of InAs/AlSb/GaSb based N-structure superlattice pin photodiode. In this new design, AlSb layer in between InAs and GaSb layers acts as an electron barrier that pushes electron and hole wave ... -
I-V characterization of a staircase quantum well infrared photodetector
(Wiley-V C H Verlag GMBH, 2011)In this work, a quantum well infrared photodetector structure which consists of three different well thicknesses with three different barrier compositions producing a staircase-like conduction band profile with the reputation ... -
Broadband staircase quantum well infrared photodetector: working in long wavelength infrared range (LWIR)
(Wiley-V C H Verlag GMBH, 2007)We present a theoretical investigation of a staircase-like quantum well infrared photodetector (QWIP). it detects wavelength between 7.6 mu m and 13.5 mu m range at an applied electric field of F = 1.9x10(4) V/cm at 77 K. ... -
Gibbs Free Energy Assisted Passivation Layers
(Spie-Int Soc Optical Engineering, 2016)Reduction of surface leakage is a major challenge in most photodetectors that requires the elimination of surface oxides on etched mesas during passivation. Engineering the passivation requires close attention to chemical ... -
Preparation of HDTMA-bentonite: Characterization studies and its adsorption behavior toward dibenzofuran
(Wiley, 2010)Bentonite is one of the most commonly used raw materials in the water treatment processes because of its low cost, easily availability and high mechanical and chemical stability. In this study, natural bentonite was modified ... -
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 of Reactive Black 5 onto quaternized 2-dimethylaminoethyl methacrylate based polymer/clay nanocomposites
(Springer, 2016)[2-(Methacryloyloxy)ethyl]dimethylhexadecylammonium bromide (DMAC16) was synthesized by means of quaternization of 2-dimethylaminoethyl methacrylate with 1-bromohexadecane. Poly(DMAC16) and poly(DMAC16)-bentonite nanocomposites ... -
Effect of Particle Size Distribution on the Sintering Behaviour of Fly Ash, Red Mud and Fly Ash-Red Mud Mixture
(Springer International Publishing Ag, 2018)In this study, the characterization and microstructure observation of the sintering behaviour of F (from Seyitomer Thermal Power Plant) and C (from Soma Thermal Power Plant) types fly ashes, red mud and red mud-fly ash ... -
Hyperbolic Quaternion Formulation of Electromagnetism
(Springer Basel Ag, 2010)In this paper, after presenting the hyperbolic quaternion formalism, an alternative representational method is proposed for the formulation of classical and generalized electromagnetism in the case of the existence of ... -
Determination of the in-plane effective mass and quantum lifetime of 2D electrons in AlGaN/GaN based HEMTs
(Wiley-V C H Verlag GMBH, 2011)Magnetoresistance and Hall resistance measurements have been used to investigate the electronic transport properties of AlGaN/GaN based HEMTs. The Shubnikov-de Haas (SdH) oscillations from magnetoresistance, is obtained ...
