Başlık için Fizik Bölümü Koleksiyonu listeleme
Toplam kayıt 189, listelenen: 81-100
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Investigation of heat capacities of proteins by statistical mechanical methods
(Elsevier Science Bv, 2007)In this study additional heat capacity of the proteins in water dissociation have been investigated by statistical mechanical methods. For this purpose, taking electric field E and total dipole moment M as thermodynamical ... -
Investigation of light induced degradation in hydrogenated amorphous silicon-germanium alloy thin films using temperature dependent photoconductivity
(Wiley-V C H Verlag Gmbh, 2010)Light induced degradation of undoped hydrogenated amorphous silicon-germanium (a-SiGe:H) alloys with different Ge contents has been investigated using intensity and temperature dependence of photoconductivity between 78K ... -
Investigation of meta- and in-stability effects in hydrogenated microcrystalline silicon thin films by the steady-state measurement methods
(Canadian Science Publishing, Nrc Research Press, 2014)Metastability effects because of atmospheric exposure, high purity gasses, and deionized water in hydrogenated microcrystalline silicon thin films with different crystalline volume fractions were studied using well accepted ... -
Investigation of metastability and instability effects on the minority carrier transport properties of microcrystalline silicon thin films by using the steady-state photocarrier grating technique
(Canadian Science Publishing, Nrc Research Press, 2014)Metastability effects in hydrogenated microcrystalline silicon thin films due to air, high purity nitrogen, helium, argon, and oxygen were investigated using temperature-dependent dark conductivity, photoconductivity, and ... -
Investigation of Phase States, Thermo-Morphologic, Magneto-Morphologic and Refractive Properties of Mesophases in Dodecyltrimethyl Ammonium Bromide - Water Lyotropic Liquid Crystalline System
(Carl Hanser Verlag, 2016)We report the phase states in dodecyltrimethyl ammonium bromide/water (DDTMABr-H2O) lyotropic liquid crystalline system. The temperature-concentration phase diagram of this system has been determined. Isotropic micellar ... -
Investigation of temperature dependent dc current transport mechanism on Au/poly(4-vinyl phenol)/p-Si device
(Iop Publishing Ltd, 2009)In this study, temperature dependent current-voltage (I-V) measurements and investigation of the dc current transport mechanism of Au/poly(4-vinyl phenol)/p-Si device have been performed. While the series resistance value ... -
The investigation of the effect of K doping on the structural, magnetic, and magnetocaloric properties of La1.4-xKxCa1.6Mn2O7 (0.0 <= x <= 0.4) double perovskite manganite
(SPRINGER, 2022)In this study, the effect of potassium doping on the morphological, crystallographic, magnetic and magnetocaloric properties of La1.4Ca1.6Mn2O7 double perovskite produced by the sol-gel wet chemical method was investigated. ... -
Investigation of the viscoelastic properties of 4-propoxy-biphenyl-4-carbonitrile
(Taylor & Francis Ltd, 2019)We report on the temperature-dependent measurements of dielectric permittivity, birefringence, elastic constants and rotational viscosity for 4-propoxy-biphenyl-4-carbonitrile in the nematic region. The temperature dependence ... -
Investigation of Thermal Properties of PUF/colored Organoclay Nanocomposites
(Polish Acad Sciences Inst Physics, 2015)Recently PF resins can be also prepared by the addition of urea because urea accelerates cure process of PF resin, reduces the cost and improves its strength performance. Clays have long been used as inorganic fillers in ... -
Lanthanum ion substituted cobalt ferrite nanoparticles and their hyperthermia efficiency
(Elsevier Science Bv, 2018)We investigated the structural, compositional, and magnetic properties as well as the AC magnetic hyperthermic response of CoFe2-xLaxO4 (x = 0.0; 0.2; 0.5) nanoparticles. We found that the La3+ ions substituted into the ... -
Lattice vibrations of pure and doped GaSe
(Pergamon-Elsevier Science Ltd, 2006)The Bridgman method is used to grow especially undoped and doped single crystals of GaSe. Composition and impurity content of the grown crystals were determined using X-ray fluorescence (XRF) method. X-ray diffraction, ... -
Lyotropic Lamellar Mesophase. Magneto-Morphologic Transformations and Optical Refracting Properties: Effect of Optically Active Dopants
(Carl Hanser Verlag, 2020)Effect of optically active dopants on the morphologic and optical refracting properties of the lyotropic liquid crystalline mesophase with anisometric micelles has been investigated. Lyotropic lamellar mesophases, which ... -
Lyotropic liquid crystalline hexagonal mesophase. Thermo-morphologic and magneto-morphologic transformations, electrical conductivity and optical refractive properties: Effect of optically active compounds
(Elsevier, 2020)Mesophase chirality in lyotropic liquid crystalline hexagonal E mesophase, which is formed by the anisometric micelles with quasi-infinite length, was studied. Effect of the optically active dopants {tartaric acid (TA) and ... -
Lyotropic mesophase in amphiphile plus aliphatic alcohol mixtures with additions of water: mesomorphic, thermomorphologic, and optical refracting properties
(Springer, 2017)Amphiphile + aliphatic alcohol lyotropic systems with addition of water can form micelles with normal, mixed, and inverse type. Such systems display various types of mesophases and exhibit interesting structural, physical, ... -
Magnetic and Magnetocaloric Properties of High-Energy Ball-Milled Nanocrystalline CeMn2Ge2 Compound
(Springer, 2016)CeMn2Ge2 nanopowders have been obtained by high-energy ball milling for 5 and 10 hours from bulk compound to investigate the effect of milling time on magnetic and magnetocaloric properties. CeMn2Ge2 nanopowders have been ... -
Magnetic measurements on HgMnTe epitaxial layers
(Amer Inst Physics, 1997)Magnetization measurements have been performed on epitaxial layers of Hg1−xMnxTe (MMT) using an alternating gradient field magnetometer (AGFM). The layers, which have a Mn concentration in the range 0.05<x<0.20, and ... -
Magnetic properties and sensitized visible and NIR luminescence of Dy-III and Eu-III coordination polymers by energy transfer antenna ligands
(Taylor & Francis Ltd, 2017)Two coordination polymers, {[Ln(2-stp)(4,4 '-bipy)(H2O)]center dot(H2O)}, [Ln = Dy (1) and Eu (2), 2-stp = 2-sulfoterephthalate and 4,4 '-bipy = 4,4 '-bipyridine] have been characterized by solid state UV-vis, FTIR spectra, ... -
Magnetic properties of La0.65Ca0.30Pb0.05Mn0.9B0.1O3 (B = Co, Ni, Cu and Zn)
(Elsevier Science Sa, 2015)The La0.65Ca0.30Pb0.05Mn0.9B0.1O3 (A = Co, Ni, Cu and Zn) manganites have been prepared via sol-gel method and sintered at 1100 degrees C for 24 h. The aim of the study was to investigate B-site cation doping effects on ... -
Measurement and comparison of complex impedance of silicon p-i-n photodiodes at different temperatures
(Maik Nauka/Interperiodica/Springer, 2007)The dark alternating current (ac) parameters of BPW34 and BPW41 (Vishay-Telefunken) silicon p-i-n photodiodes arc measured and compared at different temperatures using the impedance spectroscopy technique. The impedance ... -
Measurement and comparison of silicon p-i-n-photodiodes with ac impedance at different voltages
(Maik Nauka/Interperiodica/Springer, 2008)The dark alternating current (ac) parameters of commercially available silicon p-i-n-photodiodes are measured and compared at room temperature both in forward and reverse bias using the impedance spectroscopy technique. ...
