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Now showing items 5705-5724 of 53172
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A comparison between iron and mild steel electrodes for the treatment of highly loaded grey water using an electrocoagulation technique
( Elsevier , 2023 , Article)In the last years, the electrocoagulation (EC) process has been widely used as a potential technique for grey water treatment. However, only a few studies have focused on treating highly loaded GW (HLGW) by EC. In this ... -
Comparison between microwave and conventional sintering on the properties and microstructural evolution of tetragonal zirconia
( Elsevier Ltd , 2018 , Article)In this research, the comparison between microwave sintering and conventional sintering on the mechanical properties and microstructural evolution of 3 mol% yttria-stabilised zirconia were studied. Green bodies were compacted ... -
Comparison between multi-stage and single stage microalgae dewatering processes
( AIChE , 2018 , Conference Paper)The present work shows a quick, simple and accurate method for algae harvesting with a potential to relate the required polymer dose with in-situ hydrodynamics properties of alga solution. The method also reduces the lag ... -
Comparison between nucleic acid amplification tests, antigen immunofluorescence assay, and in vitro infectivity in SARS-CoV-2 diagnosis.
( Springer , 2022 , Article)The number of SARS-CoV-2 detection tests requested to the laboratories has dramatically increased together with an urgent need to release reliable responses in a very short time. The two options taken into consideration ... -
Comparison between Thermo-Alkaline and Electro-Fenton Disintegration Effect on Waste Activated Sludge Anaerobic Digestion
( Hindawi Limited , 2019 , Article)Disintegration of municipal waste activated sludge (WAS) using thermo-alkaline (TA) and electro-Fenton (EF) methods was investigated and compared in terms of the efficiency of sludge solubilisation and enhancement of ... -
Comparison between variable and constant refrigerant flow air conditioning systems in arid climate: Life cycle cost analysis and energy savings
( MDPI , 2021 , Article)All over the world, there is a call to encourage sustainable energy thinking and implementation. There is an urgent need to consider sustainable solutions in any design projects that are able to reduce energy consumption. ... -
Comparison GIS-Based interpolation methods for mapping groundwater quality in the state of Qatar
( Elsevier B.V. , 2021 , Article)Groundwater (GW) quality deterioration is one of the main water security issues in Qatar. GW in Qatar is over-exploited for agriculture activities that caused saltwater intrusion in the coastal areas and some inland GW. ... -
Comparison of 1D and 3D heat and mass transfer models of a counter flow dew point evaporative cooling system: Numerical and experimental studyÉtude comparative numérique et expérimentale de modèles de transfert de chaleur et de masse 1D et 3D d’un système de refroidissement évaporatif à point de rosée à contre-courant
( Elsevier Ltd , 2019 , Article)In this study, the performance of a counter flow dew point evaporative cooling system has been examined, numerically and experimentally. A one-dimensional (1D) model of the heat and mass transfer in the cooling system is ... -
Comparison of 2D triangular C-grid shallow water models
( Elsevier Ltd , 2018 , Article)An ideal two-dimensional (2D) shallow water model should be able to simulate correctly various types of waves including pure gravity and inertia-gravity waves. In this paper, two different triangular C-grid methods are ... -
Comparison of a combined strength and handball-specific training vs. Isolated strength training in handball players studying physical education
( Georg Thieme Verlag , 2019 , Article)Objectives The purpose of this study was to compare the effect of combined resistance training including handball-specific drill (CRT) with resistance training excluding handball-specific drill training (NSDT). Materials ... -
Comparison of antibiotic susceptibilities of four species of coagulase-negative staphylococci isolated rom normal skin and acne Lesions: a statistical approach
( Qatar University , 1996 , Article)Ten strains of each of four species of coagulase negative staphylococci: S. epidermidis, S. hominis, S. capitis, and S. cohnii isolated from both acne lesion and normal skin (total 80 strains) were tested for their antibiotic ... -
Comparison of antibody immune responses between BNT162b2 and mRNA-1273 SARS-CoV-2 vaccines in naïve and previously infected individuals.
( Oxford University Press , 2021 , Article)Two mRNA vaccines, Pfizer-BNT162b2 and Moderna-mRNA-1273, obtained the Emergency Use Listing by WHO for preventing COVID-19. However, little is known about the difference in antibody responses induced by these two mRNA ... -
Comparison of Available Methods for Investigating The in vitro Activity of Colistin Against Different Gram-Negative Bacilli
( Qatar University Press , 2021 , Poster)Background: The surge in the prevalence of multidrug-resistant (MDR) Gram-negative bacterial infections with limited treatment options and the decrease in the development of new antibiotics are challenges that lead to the ... -
Comparison of bias adjustment in meta-analysis using data-based and opinion-based methods.
( Wolters Kluwer Health , 2024 , Article)Several methods exist for bias adjustment of meta-analysis results, but there has been no comprehensive comparison with unadjusted methods. We compare 6 bias-adjustment methods with 2 unadjusted methods to examine how these ... -
Comparison of bias adjustment methods in meta-analysis suggests that quality effects modeling may have less limitations than other approaches.
( Elsevier , 2019 , Article)The quality of primary research is commonly assessed before inclusion in meta-analyses. Findings are discussed in the context of the quality appraisal by categorizing studies according to risk of bias. The impact of appraised ... -
A comparison of bio-crude oil production from five marine microalgae – Using life cycle analysis
( Elsevier , 2022 , Article)Marine microalgae biomass could offer a viable feedstock for sustainably producing biofuel by hydrothermal liquefaction. In this study, five promising marine microalgae (i.e., Tetraselmis, Picochlorum, Synechococcus, ... -
Comparison of biocrude oil production from self-settling and non-settling microalgae biomass produced in the Qatari desert environment
( Center for Environmental and Energy Research and Studies , 2019 , Article)The present study investigated the growth, harvesting, biocrude conversion, and recycling of the HTL aqueous phase for one self-settling (i.e., Chlorocystis sp.) and another non-settling (i.e., Picochlorum sp.) marine ... -
Comparison of body mass, feeding and food conversion of temperature acclimatized Porcellionides pruinosus (Brandt, 1833) (Isopoda, Oniscidea) fed on the dry leaf of Punica granatum
( Qatar University , 2006 , Article)A detailed study was conducted on the body mass; moisture; assimilation efficiency; gross and net production efficiencies; feeding, assimilation; conversion and metabolic rates of the woodlouse Porcellionides pruinosus ... -
Comparison of BPN, RBFN and wavelet neural network in induction motor modelling for speed estimation
( Taylor and Francis Ltd. , 2020 , Article)This paper discusses the question of estimating a neural network induction motor speed. The neural network is trained in the relationship between stator currents and rotor speed. Rotor currents and speed are created using ...