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السجلات المعروضة 3311 -- 3320 من 5809
Co2+ substituted for Bi3+ in BiVO4 and its enhanced photocatalytic activity under visible LED light irradiation
(
Royal Society of Chemistry
, 2019 , Article)
We investigated the fabrication of Co-doped BiVO4 (Bi1-xCoxVO4+δ, 0.05 < x < 0.5) by the substitution of Co ions for Bi sites in BiVO4. The X-ray diffraction (XRD), Raman, and X-ray photoelectron spectroscopy (XPS) results ...
Truth against truth: American and Arab history school textbooks portrayal of the Arab–Israeli conflict
(
Bloomsbury Qatar Foundation Journals
, 2011 , Article)
Textbooks reflect a national consensus regarding the knowledge, values and perspectives that a
society wants conveyed to their students. Through textbooks, students are exposed to a dominant
narrative that presents an ...
Anomalous manganese activation of a pyrophosphate cathode in sodium ion batteries: A combined experimental and theoretical study
(2013 , Article)
Sodium ion batteries (SIBs) have many advantages such as the low price and abundance of sodium raw materials that are suitable for large-scale energy storage applications. Herein, we report an Mn-based pyrophosphate, ...
Estimating the carbon dynamics of South Korean forests from 1954 to 2012
(
Copernicus GmbH
, 2014 , Article)
Forests play an important role in the global carbon (C) cycle, and the South Korean forests also contribute to this global C cycle. While the South Korean forest ecosystem was almost completely destroyed by exploitation ...
A Habermasian Analysis of Qatar's National Teacher Professional Standards
(
Macrothink Institute
, 2014 , Article)
The belief that implementing professional standards will improve teaching and learning has
led many countries to embrace standards based educational reforms. Qatar is one of those
nations implementing, Education for a ...
Analysis of Resistance to Antimicrobials and Presence of Virulence/Stress Response Genes in Campylobacter Isolates from Patients with Severe Diarrhoea
(
Public Library of Science
, 2015 , Article)
Campylobacter infections are a major cause of diarrhoea world-wide and two of the antimicrobials
used for their control (erythromycin and ciprofloxacin) have been losing efficacy in
recent years. In a sample of 174 ...
Constraint violations in stochastically generated data: Detection and correction strategies
(
Hindawi Publishing Corporation
, 2014 , Article)
We consider the generation of stochastic data under constraints where the constraints can be expressed in terms of different parameter sets. Obviously, the constraints and the generated data must remain the same over each ...
Bayesian Monitoring of Linear Profiles Using DEWMA Control Structures with Random X
(
Institute of Electrical and Electronics Engineers Inc.
, 2018 , Article)
The process structures of manufacturing industry are efficiently modeled using linear profiles. Classical and Bayesian set-ups are two well-appreciated schemes for designing control charts for the monitoring of process ...
Assessing the vulnerability of socio-environmental systems to climate change along an altitude gradient in the Indian Himalayas
(
Elsevier B.V.
, 2019 , Article)
Climate change is affecting biotic and abiotic components of the Himalayan ecosystem, disturbing existing socio-ecological systems. Future changes in the climate, coupled with ongoing development activities in the Himalayas, ...
Deep eutectic solvents on the surface of face centered cubic metals
(
American Chemical Society
, 2016 , Article)
The properties of the deep eutectic solvent based on choline chloride and levulinic acid, for 1:2 molar ratio, on the (100) surfaces of metals with face centered cubic crystal structures (Ag, Al, and Pt) are studied using ...