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السجلات المعروضة 431 -- 440 من 1002
Indicators of Students’ Lack of Motivation in Qatar: Students’ Perspectives
(
The Social and Economic Survey Research Institute, Qatar University
, 2017 , Poster)
Striving for excellence in education, Qatar committed significant financial investments to revamp and modernize its system of education in order to prepare citizens for the challenge of modern society and to transform the ...
Impact of Innovative Learning Environment Based on Research Activities on Secondary School Student's Attitude Towards Research and Their Self-Efficacy.
(
European Scientific Institute, ESI.
, 2014 , Article)
Advanced and free learning environment coupled with the creative
learning activities is assumed to be a motivational variable. In the present
study, we applied an innovative learning strategy involving students in order
to ...
Engineering of magnetically separable ZnFe2O4@ TiO2 nanofibers for dye-sensitized solar cells and removal of pollutant from water
(
Elsevier
, 2017 , Article)
Abstract In this study, magnetic Zinc Ferrite (ZnFe2O4)@TiO2 nanofibers were prepared by low cost and nontoxic route; hydrothermal technique followed by electrospinning process. The prepared magnetic ZnFe2O4@TiO2 nanofibers ...
Health and Safety Concerns: Quantitative Studies of Leaching of Metals from Glazed Surfaces of Traditional Ceramic Potteries
(
Open Science Publishers
, 2017 , Article)
Traditional ceramic wares have been known as a source of heavy metals poisoning. Traditional ceramic potteries may be improperly glazed, and the glaze used to make the pottery may contain over amounts of heavy metals. These ...
Photoenhanced degradation of methylene blue on polyaniline engineered multiferroics (BiAl0.3Mn0.3Fe0.4O3) nanocomposite systems: A comprehensive study
(
Desalination Publications
, 2017 , Article)
This study encompasses the synthesis of polyaniline (PANI) composites with different contents of BiAl0.3Mn0.3Fe0.4O3 (12.5%, 25%, 37.5% and 50% w/w) nanoparticles (NPs). The surface morphologies and crystallite structures ...
A Fast Responsive Ultraviolet Sensor from mSILAR-Processed Sn-ZnO
(
Springer New York LLC
, 2017 , Article)
Microwave-assisted successive ionic layer adsorption and reaction was employed to synthesize Sn-ZnO (tin-doped zinc oxide), and its sensitivity to ultraviolet radiation is compared with zinc oxide (ZnO). The sensing films ...
Size-And Wavelength-Dependent Two-Photon Absorption Cross-Section of CsPbBr3 Perovskite Quantum Dots
(
American Chemical Society
, 2017 , Article)
All-inorganic colloidal perovskite quantum dots (QDs) based on cesium, lead, and halide have recently emerged as promising light emitting materials. CsPbBr3 QDs have also been demonstrated as stable two-photon-pumped lasing ...
Multicriteria Decision-Making Methodology for Credit Selection in Building Sustainability Rating Systems
(
American Society of Civil Engineers (ASCE)
, 2017 , Article)
Uncertainty is an inherent characteristic of decision making related to sustainable construction projects. The main reason for this uncertainty is the incomplete information available to stakeholders on the relative impact ...
Optical sensors based on the NiPc-CoPc composite films deposited by drop casting and under the action of centrifugal force
(
Institute of Physics Publishing
, 2017 , Article)
In this study, solution processed composite films of nickel phthalocyanine (NiPc) and cobalt phthalocyanine (CoPc) are deposited by drop casting and under centrifugal force. The films are deposited on surface-type ...
Impact of the demise mechanisms of the Cretaceous rudist buildups in the Arabian Plate on their reservoir characteristics
(
Springer Berlin Heidelberg
, 2017 , Article)
Rudist buildups form the major oil-producing reservoirs in the Cretaceous carbonate strata of the Arabian Plate. They are the main components of the Shuaiba and Mishrif and to lesser extent, the Natih, Mauddud, Simsima, ...