Search
Now showing items 11-20 of 1346
Cleaning of ceramic membranes for produced water filtration
(
Elsevier
, 2018 , Article)
© 2018 Elsevier B.V. The application of ceramic microfiltration membranes to the tertiary treatment of produced water from an Arabian Gulf oilfield has been studied using a dedicated pilot plant. Studies were based on a ...
DSC investigation of the gelation kinetics of emulsified PAM/PEI system: Influence of surfactants and retarders
(
Springer Netherlands
, 2015 , Article)
Water production in the oilfields has a negative impact on the production and economy. It is highly desired to shut off water paths without affecting the hydrocarbon zones. Polymer gels are frequently used for water control ...
Synthesis of minimal-size ZnO nanoparticles through sol-gel method: Taguchi design optimisation
(
Elsevier BV
, 2015 , Article)
Zinc oxide (ZnO) has excellent potential to be used in water and wastewater treatment, either as a photocatalyst or in membrane incorporation. In this work, the synthesis of smaller ZnO NPs through a sol-gel approach was ...
A new experimental device and inverse method to characterize thermal properties of composite phase change materials
(
Elsevier BV
, 2015 , Article)
A new experimental device has been developed in order to characterize the phase change material (PCM) thermal properties (thermal conductivity k, sensible and latent heat thermal energy storage, cp and Lf) in the solid ...
Poreless Separator and Electrolyte Additive for Lithium-Sulfur Batteries with High Areal Energy Densities
(
WILEY-VCH Verlag
, 2015 , Article)
Despite the attractive theoretical capacity of sulfur over 1600 mA h g−1, lithium–sulfur (Li–S) batteries suffer from insufficient cycle lives mainly due to fatal polysulfide dissolution. This chronic drawback becomes ...
Thermochemical treatment of fly ash for synthesis of mesoporous activated carbon
(
Springer Netherlands
, 2015 , Article)
A mesoporous activated carbon is produced from oil fly ash (OFA) using chemical and thermal treatments at different activation conditions. The ash samples were refluxed with a range of compositions of sulfuric, nitric, and ...
Social Capital and Citizens’ Attitudes towards Migrant Workers
(
Cogitatio Press
, 2017 , Article)
This study examines Qatari citizens’ attitudes toward migrant workers. While much research has been conducted on citizens’ attitudes toward the abolition, tightening, or loosening of the Kafāla system in the Gulf Cooperation ...
Molecular characterization of extended spectrum β -lactamases enterobacteriaceae causing lower urinary tract infection among pediatric population.
(
BioMed Central
, 2018 , Article)
The β-lactam antibiotics have traditionally been the main treatment of Enterobacteriaceae infections, nonetheless, the emergence of species producing β- Lactamases has rendered this class of antibiotics largely ineffective. ...
Antibiotic Resistance Profile of Commensal Escherichia coli Isolated from Broiler Chickens in Qatar.
(
International Association for Food Protection
, 2018 , Article)
Antibiotic resistance (AR) is a growing public health concern worldwide, and it is a top health challenge in the 21st century. AR among Enterobacteriaceae is rapidly increasing, especially in third-generation cephalosporins ...
USE OF EPORTFOLIOS IN K-12 TEACHER HIRING IN NORTH CAROLINA: PERSPECTIVES OF SCHOOL PRINCIPALS
(
Association for Supervision and Curriculum Development
, 2012 , Article)
This study explored the perceptions of principals involved in the hiring process of K–12 teachers in 11 counties in southeastern North Carolina. Forty-nine principals responded to a survey on ePortfolio use in the hiring ...