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السجلات المعروضة 3974 -- 3993 من 4920
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Stateless Security Risk Assessment for Dynamic Networks
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)Emerging networking technologies, such as cloud and Software Defined Networking, provide flexibility, elasticity and functionalities to change the network configurations over time. However, changes also impose unpredictable ... -
Static and dynamic investigations on leaching/retention of nutrients from raw poultry manure biochars and amended agricultural soil
( MDPI , 2021 , Article)In this study, nutrients release/adsorption from/by raw poultry manure-derived biochar produced at a pyrolysis temperature of 600 °C (RPM-B) was assessed under static and dynamic conditions. Batch sequential leaching ... -
Statistical methods and resources for biomarker discovery using metabolomics.
( BMC , 2023 , Article Review)Metabolomics is a dynamic tool for elucidating biochemical changes in human health and disease. Metabolic profiles provide a close insight into physiological states and are highly volatile to genetic and environmental ... -
The status of industrial and municipal effluent treatment with membrane bioreactor technology
( Elsevier , 2016 , Article)The status of MBR technology has been scrutinised with reference to (a) available commercial technologies and their characteristics, (b) key design and performance parameters of existing full-scale installations, and (c) ... -
Steel-Making dust as a potential adsorbent for the removal of lead (II) from an aqueous solution
( Elsevier B.V. , 2018 , Article)The presence of high concentrations of toxic heavy metals such as lead Pb(II) in water is a major hazard to human health and may have a detrimental effect on the aquatic life and the environment. Implementing an efficient ... -
Stem cell-based approaches in cardiac tissue engineering: controlling the microenvironment for autologous cells
( Elsevier , 2021 , Article)Cardiovascular disease is one of the leading causes of mortality worldwide. Cardiac tissue engineering strategies focusing on biomaterial scaffolds incorporating cells and growth factors are emerging as highly promising ... -
STEM learning during the COVID-19 pandemic in Qatar: Secondary school students’ and teachers’ perspectives
( Modestum LTD , 2022 , Article)This study examines how students and teachers perceive science, mathematics, engineering and technology (STEM) learning during the COVID-19 pandemic. Data was collected through student and teacher surveys, conducted in 22 ... -
A STEM model to engage students in sustainable science education through sports: A case study in Qatar
( MDPI , 2021 , Article)Sports has the potential to integrate with different scientific subjects, including materials science and engineering, making it an ideal approach to enhance the students’ affinity toward sustainable education in science, ... -
Stigma associated with mental illness: perspectives of university students in Qatar
( Dove Press , 2017 , Article)Stigma in relation to mental illness is one of the main factors inhibiting people from seeking help. Studies have been undertaken looking into the knowledge, attitudes, and beliefs (KAB) about mental illness among residents ... -
Stimulation of high temperature carbonate gas reservoirs using seawater and chelating agents: Reaction kinetics
( Elsevier B.V. , 2018 , Article)The use of hydrochloric acid (HCl) in gas well stimulation of high temperature reservoirs is currently facing different challenges. These challenges include rapid corrosion of the well tubulars, face dissolution, very high ... -
Storage and Release of Thermal Energy of Phase Change Materials Based on Linear Low Density of Polyethylene, Parafin Wax and Expanded Graphite
( John Wiley & Sons, Inc. , 2015 , Book chapter) -
Strategic Decision Making and Implementation in Public Organizations in the Gulf Cooperation Council: The Role of Procedural Rationality
( American Society for Public Administration , 2022 , Article)Based on Herbert Simon's conceptualization of bounded rationality, this article develops and tests an integrative model of the strategic decision-making process (SDMP) and outcomes in public organizations. The model ... -
Strategic Decision-Making Research in New Settings: The Role of the Two-Stage Multi-Method Field Study in Sampling and Questionnaire Design
( SAGE Publications Ltd , 2019 , Other)A research design is the framework which researchers plan for use as a guide in collecting, analyzing, and completing their research. The function of a research design is to ensure that the evidence obtained enables us to ... -
Stratigraphy and petroleum systems of the Paleozoic (pre-Khuff) succession, Qatar
( Wiley , 2016 , Article)A thickness of more than 1500m of Palaeozoic (pre-Khuff) siliciclastic strata were encountered in three deep wells (Matbakh A, and Dukhan A and B) drilled in the State of Qatar. These sedimentary rocks have no formal ... -
Strength and durability of composite concretes with municipal wastes
( American Concrete Institute , 2016 , Article)The influence of different types of polyethylene (PE) substitutions as partial aggregate replacement of microsteel fiber-reinforced self-consolidating concrete (SCC) incorporating incinerator fly ash was investigated. The ... -
Streptococcosis a Re-Emerging Disease in Aquaculture: Significance and Phytotherapy
( MDPI , 2022 , Article Review)Streptococcosis, particularly that caused by S. iniae and S. agalactiae, is a major re-emerging bacterial disease seriously affecting the global sustainability of aquaculture development. Despite a wide spread of the disease ... -
Stretchable Electrospun PVDF-HFP/Co-ZnO Nanofibers as Piezoelectric Nanogenerators
( Nature Publishing Group , 2018 , Article)Herein, we investigate the morphology, structure and piezoelectric performances of neat polyvinylidene fluoride hexafluoropropylene (PVDF-HFP) and PVDF-HFP/Co-ZnO nanofibers, fabricated by electrospinning. An increase in ... -
Striking multiple synergies in novel three-phase fluoropolymer nanocomposites by combining titanium dioxide and graphene oxide as hybrid fillers
( Springer New York LLC , 2017 , Article)In this study, novel three-phase polymer nanocomposites comprising of polyvinylidene fluoride (PVDF), titanium dioxide (TiO2) nanoparticles and graphene oxide (GO) were prepared using colloidal blending. The PVDF/TiO2/GO ... -
Structural and electrochemical properties of electrodeposited Ni-P nanocomposite coatings containing mixed ceramic oxide particles
( Electrochemical Science Group , 2016 , Article)Mixed oxide ceramic particles were incorporated into Ni-P matrix to synthesize Ni-P-TiO2-CeO2 nanocomposite coatings. In the present study, the effect of concentration of mixed oxide ceramic particles (TiO2 and CeO2) on ... -
Structural and functional properties of rare earth-based (NiO-CGO) nanocomposite produced by effective multiple doping approach via co-precipitation
( Taylor and Francis Ltd. , 2021 , Article)Several metal oxide nanocomposites produced by multiple doping approaches with a combination of rare earth metals tend to show improved performance in various areas such as electrochemical, photocatalytic, and biomedical. ...