Ara
Toplam kayıt 10, listelenen: 1-10
Determination of natural radioactivity levels of some concretes and mineral admixtures in Turkey
(Asian Journal of Chemistry, 2014)
Nine concrete samples with or without mineral admixtures have been analyzed for their naturally occurring radionuclide of Ra-226, Th-232 and K-40 using HPGe gamma spectrometry. Also, concrete raw materials such as aggregate, ...
Effects of initial cooling conditions and measurement heights on the levitation performance of bulk MgB superconductor at different measurement temperatures
(Springer/Plenum Publishers, 2014)
The levitation properties of MgB prepared by hot press at 200 C and then pellet/closed tube method has been investigated. the vertical and lateral levitation forces ( and on a cylindrical NdFeB permanent magnet (PM) below ...
Investigation of Cd1-xCoxS diluted magnetic semiconductor thin films fabricated by chemical bath deposition method
(Elsevier Science Sa, 2014)
Chemical bath deposition method was used for preparation of Cd1-xCoxS thin films. the effects of Co doping and thermal annealing on structural, optical, electrical and magnetic properties of CdS thin films were investigated. ...
Investigation on the levitation force behaviour of malic acid added bulk MgB2 superconductors
(Elsevier, 2014)
The effects of malic acid addition (from 0 to 15 wt% of the total MgB2) on the levitation force properties of bulk MgB2 have been investigated. All samples were prepared from magnesium powder, amorphous boron powder, malic ...
Comparison of levitation forces of bulk MgB2 superconductors produced by nano boron and carbon-doped nano boron
(Springer, 2014)
MgB2 bulk superconductors were prepared by hot press plus furnace heating method. Two types of boron powders were used, one is amorphous nano boron and the other is C-doped boron. Characteristics of superconductors were ...
Accumulation of metals in roadside soil, dust and pine needles in different characteristic traffic areas
(Parlar Scientific Publications (P S P), 2014)
Heavy metal levels and sources of contamination were investigated in different roadside locations from Ankara and Bursa metropolitan cities in Turkey. A state of the art energy dispersive X-ray fluorescence (EDXRF) ...
Validation of classical quantitative fundamental parameters method using multivariate calibration procedures for trace element analysis in ED-XRF
(Royal Soc Chemistry, 2014)
In this study, the X-ray intensities obtained from 76 soil samples were converted to concentrations by means of the Epsilon software program applying the fundamental parameters method (FP). Various National Institute of ...
Precision and accuracy of ST-EDXRF performance for As determination comparing with ICP-MS and evaluation of As deviation in the soil media
(Pergamon-Elsevier Science Ltd, 2014)
The present study was conducted to (i) determine the precision and accuracy of arsenic measurement in soil samples using ST-EDXRF by comparison with the results of ICP-MS analyses and (ii) identify the relationship of As ...
The effect of external electric field on mass attenuation coefficients of some semiconductor
(Taylor and Francis Inc., 2014)
In this study, we measured the mass attenuation coefficient of n-type GaAs, p-type GaAs, n-type Si and Au/n-Si/n+Si/Al samples with and without external electric field. Samples were set in perpendicular direction to the ...
Synthesis and fabrication of Mg-doped ZnO-based dye-synthesized solar cells
(Springer, 2014)
Undoped and 2, 4 and 6 at.% Mg-doped ZnO nanorods were successfully deposited on ZnO seeded fluorine tin oxide substrates by a simple chemical bath deposition technique to form a photoanode. It was seen that all the samples ...