Yayıncı "Wiley-V C H Verlag GMBH" Fen Fakültesi için listeleme
Toplam kayıt 34, listelenen: 1-20
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3D Micropatterned All-Flexible Microfluidic Platform for Microwave-Assisted Flow Organic Synthesis
(Wiley-V C H Verlag GMBH, 2018)A large-area, all-flexible, microwaveable polydimethoxysilane microfluidic reactor was fabricated by using a 3D printing system. The sacrificial microchannels were printed on polydimethoxysilane substrates by a direct ink ... -
Approximate construction of the set of trajectories of the control system described by a Volterra integral equation
(Wiley-V C H Verlag GMBH, 2015)In this paper the set of trajectories of the control system is investigated. It is assumed that the behavior of the control system is described by a Volterra integral equation which is nonlinear with respect to the state ... -
Biosorption of Cadmium Ions from Aqueous Solution Onto Non-living Lichen Ramalina fraxinea Biomass
(Wiley-V C H Verlag GMBH, 2009)Living lichens are known to accumulate metals across their surface. in this study, the biosorption of cadmium ions (Cd(2+)) by the lichen Ramalina fraxinea was investigated in aqueous solution in a batch system with respect ... -
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. ... -
Design and evaluation of biological activities of 1,3-oxazolidinone derivatives bearing amide, sulfonamide, and thiourea moieties
(Wiley-V C H Verlag GMBH, 2018)1,3-Oxazolidine-2-one is an important heterocyclic ring participating in the chemical structure of many drugs. In this research, 22 new amide/sulfonamide/thiourea derivatives (1-22) were obtained by the reaction of ... -
Determination of dislocation densities in InN
(Wiley-V C H Verlag GMBH, 2012)The magneto-transport measurements, carried out at magnetic fields up to 11 T and in the temperature range between 1.8 K and 300 K, are used to investigate the scattering mechanisms in GaN/InN/AlN double heterojunctions. ... -
Determination of the carrier density dependent electron effective mass in InN using infrared and Raman spectra
(Wiley-V C H Verlag GMBH, 2012)The vibrational properties of InN samples grown by molecular beam epitaxy (MBE) technique have been studied using infrared (IR) and Raman scattering spectroscopy at room temperature. In the Raman measurements, the 532?nm ... -
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 ... -
Effect of exchange-correlation potential on the plasmon dispersions in a doped symmetrical double quantum well
(Wiley-V C H Verlag GMBH, 2007)We have calculated the plasmon dispersion relations in a doped double quantum well with and without exchange-correlation potential added to the effective potential of the system. The calculations were done for high and low ... -
Effect of substrate temperature on some of the optical parameters of CuInS2 films
(Wiley-V C H Verlag GMBH, 2007)Polycrystalline CuInS2 films have been grown by spray pyrolysis method at different substrate temperatures, a simple method which can produce low cost and highly absorbing samples. Optical characteristics of the CuInS2 ... -
Effects of magnetic field on the terahertz nonlinear optical properties in donor-doped GaAs/AlGaAs quantum wells
(Wiley-V C H Verlag GMBH, 2012)Effects of the magnetic field on nonlinear optical properties at THz range in GaAs/AlGaAs quantum wells doped with donor atoms are investigated. Expressions for the third-order nonlinear optical susceptibilities are obtained ... -
Electrical and optical properties of undoped and In-doped ZnO thin films
(Wiley-V C H Verlag GMBH, 2007)Transparent conducting undoped and indium-doped zinc oxide (ZnO) thin films have been deposited by the spray pyrolysis method at 350 degrees C substrate temperature. X-ray diffraction spectra of the films have shown that ... -
Electrochemical oxidation of ds-DNA on polypyrrole nanofiber modified pencil graphite electrode
(Wiley-V C H Verlag GMBH, 2007)Preparation of a polypyrrole nanofiber (PPyNF) modified pencil graphite (PG) electrode and its usage in the electrochemical DNA biosensors was investigated. The electrodes (PPyNF/PG1 and PPyNF/PG2) were prepared from a ... -
Electron and hole energy relaxation rates in GaInNAs/GaAs quantum wells via deformation potential and piezoelectric scattering
(Wiley-V C H Verlag GMBH, 2013)The two-dimensional (2D) electron and hole energy relaxation associated with acoustic phonon emission in n- and p-type modulation doped Ga0.7In0.3NyAs1y/GaAs quantum wells has been investigated experimentally using ... -
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 ... -
Investigation of carbon produced by methane pulsed discharge
(Wiley-V C H Verlag GMBH, 2007)Pulsed discharges of methane gas at atmospheric pressure were generated using high voltage power supply (20 kV-25 kHz) to produce the carbon. The pulsed discharge of methane gas was generated between two sharp wolfram ... -
Longitudinal polar optical phonons in InN/GaN single and double heterostructures
(Wiley-V C H Verlag GMBH, 2011)Longitudinal optical phonon energy in InN epi-layers has been determined independently from the Raman spectroscopy and temperature dependent Hall mobility measurements. Raman spectroscopy technique can be used to obtain ... -
Multi-crystalline silicon solar cells with metal-assisted nano-texturing using HNO3 as hole injection agent
(Wiley-V C H Verlag GMBH, 2016)In this study, metal-assisted etching (MAE) with nitric acid (HNO3) as a hole injecting agent has been employed to texture multi-crystalline silicon wafers. It was previously proven that addition of HNO3 enabled control ... -
A New Application Area for Ag-NHCs: CO2 Fixation Catalyst
(Wiley-V C H Verlag GMBH, 2012)The first example of the silver-NHC catalyzed cycloaddition of CO2 to terminal epoxides is reported. The choice of NHC substituents, halides and the nature of additives were determined to be important. Ionic [(Cnmim)2Ag]2[Ag2Br4] ... -
On the 3D Rayleigh wave field on an elastic half-space subject to tangential surface loads
(Wiley-V C H Verlag GMBH, 2015)This study is concerned with analysis of the Rayleigh wave field in a 3D isotropic elastic half-space subject to in-plane surface loading. The approach relies on the slow time perturbation of the general representation for ...