Ara
Toplam kayıt 2210, listelenen: 2171-2180
Synthesis of the CeO2 based pigments by using enriched rare-earth oxides located at eskişehir kizilcaören region
(2004)
Pigments based on CeO2 structure are known to give various pink-orange and red brown colour in ceramic glazes. This type of pigments is prepared by high temperature calcination of CeO2 and Pr 6O11 with admixed rare-earth ...
Gamma Attenuation Behavior of h-BN and h-BN-TiB2 Composites
(Polish Acad Sciences Inst Physics, 2014)
Hexagonal boron nitride (h-BN) and hexagonal boron nitride-titanium diboride (h-BN-TiB2) composites are advanced materials for high-tech applications. They were investigated against gamma radioisotope sources Cs-137 and ...
Reaction model for the boron carbide/aluminium system
(Trans Tech Publications LTD, 2004)
An attempt has been made to shed light on the reaction mechanism during the production of B4C/Al composites by making use of the measured phase contents of the phases B4C, Al, Al3BC and AlB2. It was found that the agreement ...
Pressureless sintering of hexagonal boron nitride powders
(Trans Tech Publications LTD, 2007)
Pressureless sintering of hexagonal boron nitride (BN) with and without additives was performed using a powder which was previously nitrided at 900 degrees C and then heat treated at 1400 degrees C. Sintering additives ...
Spark Plasma Sintering of Silicon Nitride-Boron Carbide Composites
(Trans Tech Publications LTD, 2009)
Si(3)N(4)-B(4)C composites containing fine and coarse B(4)C particles were produced using Al(2)O(3) and Y(2)O(3) as sintering additives via spark plasma sintering (SPS) technique. Phase assemblages of the produced composites ...
Application of Homogeneously Precipitated Nanosized Fe-Doped Alumina Powders to Carbon Nanotube Growth
(Wiley, 2010)
Homogeneous precipitation of hydroxides was investigated as an alternative method to synthesize Fe-doped aluminum oxide (alpha-Al2-2xFe2xO3) particles over which carbon nanotubes (CNTs) were grown via a catalytic chemical ...
Loneliness, Depression, and Computer Self-Efficacy as Predictors of Problematic Internet Use
(Mary Ann Liebert Inc, 2008)
This study investigated whether university students' levels of loneliness, depression, and computer self-efficacy were significant predictors of their problematic Internet use levels. The study was carried out with 559 ...
The Effectiveness of Collaborative Learning Applications in Art Education
(Int Inst Informatics & Systemics, 2008)
This research has been carried out in order to define the effectiveness of collaborative learning applications in art education training through using the model of pre-test and post-test control group. Two groups of learners, ...
Procedures in Turkey for Guiding Students with Special Needs into Inclusive Settings
(EDAM, 2017)
Systematic and organized management of guidance and placement procedures is a definitive prerequisite for the quality and functionality of inclusive settings. This research aims to analyze the Guidance and Research Centers' ...
Effectiveness of constant time delay on teaching snack and drink preparation skills to children with mental retardation
(Council Exceptional Children, 2005)
A multiple probe design with probe conditions across behaviors was used to evaluate effectiveness of constant time delay on teaching snack and drink preparation skills to children with mental retardation. In addition, ...