Ara
Toplam kayıt 222, listelenen: 171-180
Determination of mass attenuation coefficients, effective atomic and electron numbers for some natural minerals
(Elsevier, 2009)
The total mass attenuation coefficients (?m) for SiO2 {Quartz (1 1 0 1), Quartz (1 1 0 0) and Quartz (0 0 0 1)}, KAlSi3O8 {Orthoclase (0 1 0), Orthoclase (1 0 0)}, CaSO4·2H2O (gypsum), FeS2 (pyrite) and Mg2Si2O6 (pyroxene) ...
Effects of x in Yb1-xGdxBa2Cu3O7-y samples on c-lattice parameter, activation energy and its magnetic power constant
(Elsevier, 2008)
The Yb1-xGdxBa2Cu3O7-y superconducting samples (x = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0) which were prepared by solid-state reaction technique were studied to investigate the effect of x on c-lattice parameter, the activation ...
Coupled-channel and distorted-wave Born approximation analyses for 25.1 MeV and 32.5 MeV energies of p- 40Ar inelastic scattering
(Springer, 2008)
The optical model parameters, the coupled-channel parameters and excitation mode ?2 , ?3 and ?5 deformation parameters corresponding to the best fit to the experimental differential cross-sections and the analyzing powers ...
The influence of substrate temperature on the morphology, optical and electrical properties of thermal-evaporated ZnTe Thin Films
(Elsevier, 2009)
The structural, morphological, optical and electrical properties of ZnTe films deposited by evaporation were investigated as a function of substrate temperature (at -123 and 27 °C) and post-deposition annealing temperature ...
Measurement of Lα, Lβ and Total L X-ray fluorescence cross-sections for some elements with 40≤Z≤53
(Elsevier, 2010)
Lα, Lβ and total L X-ray fluorescence (XRF) cross-sections have been measured for the nine elements (Zr, Nb, Mo, Ag, Cd, In, Sn, Sb and I) using photon energy 5.96 keV. In these the elements, Lα and Lβ spectra were derived ...
Effects of Meissner surface current on the microwave surface resistance of type-II superconductors
(Elsevier, 2010)
Influence of the Meissner current on the field-induced variations of the microwave (mw) surface resistance in type-II superconductors is demonstrated to be well reproduced by exploiting different critical state models. ...
CdTe thin film solar cells prepared by a low-temperature deposition method
(Wiley, 2010)
Low-temperature vacuum deposition instead of the commonly used vacuum deposition at high substrate temperatures has been applied to prepare high efficiency (CdS/CdTe) solar cells. CdS and CdTe thin films have been subsequently ...
Radiological and chemical assessment of phosphate rocks in some countries
(Elsevier, 2010)
In this study, the radiological, structural and chemical characterizations of Mardin-Mazi{dotless}da?i{dotless} phosphate rock, which is an important phosphate fertilizer source in Turkey were investigated and compared to ...
Irreversibility line and flux relaxation in Bi:2223/Ag tape prepared by CTFF technique: H//c axis
(Springer Link, 2010)
We have studied flux dynamics in Bi:2223/Ag tape prepared by the CTFF technique in the orientation of H//c axis. Irreversibility line (IL) of a Bi:2223/Ag tape has been determined from AC susceptibility and the DC magnetization ...
Hydrogen production system design with synchronous buck converter
(IEEE, 2010)
Nowadays, the growing energy needs and the decreasing fossil fuels have made inevitable the use of new and renewable energy. The high cost of the renewable energy sources led to the need to develop more efficient and cheaper ...