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السجلات المعروضة 5421 -- 5440 من 49818
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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 ... -
Comparison of camel, buffalo, cow, goat, and sheep yoghurts in terms of various physicochemical, biochemical, textural and rheological properties
( Elsevier , 2023 , Article)Comparative physicochemical, biochemical, textural, and rheological properties of yoghurts produced using buffalo, camel, cow, goat, and sheep milk were analysed. The physicochemical, textural, and rheological properties ... -
Comparison of co-presence of Epstein-Barr virus and high-risk human papillomaviruses in colorectal cancers in the Middle East Region
( Qatar University Press , 2020 , Poster)Background: Several studies have shown the presence of onco viral DNA in colorectal tumor tissues. Viral infection by onco-viruses such as Human papillomaviruses (HPVs) and Epstein-Barr virus (EBV) are well-known to be ... -
Comparison of demographic and clinical characteristics in distinguishing testicular torsion from torsion of the appendix testis: A single-center retrospective study
( Elsevier , 2022 , Article)Testicular torsion (TT) is an emergency requiring a prompt diagnosis and surgery to avoid irreversible changes and a complete loss of testis. The present study aimed to identify potential factors that may predict a testicular ... -
Comparison of different fourth order Hilbert fractal antennas for partial discharge measurement
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)Three Hilbert fractal antenna designs are proposed in this work to capture and classify common types of partial discharge (PD) in an oil insulated system. Each antenna design shows unique characteristics in terms of resonant ... -
Comparison of dual stage ultrafiltration and hybrid ultrafiltration-forward osmosis process for harvesting microalgae (Tetraselmis sp.) biomass
( Elsevier , 2020 , Article)In this study, a hybrid ultrafiltration-forward osmosis system was compared with a dual stage ultrafiltration process for the harvesting of marine microalgae. To the best of the author's knowledge none of the previous ... -
Comparison of fosfomycin against fluoroquinolones for transrectal prostate biopsy prophylaxis: an individual patient-data meta-analysis
( Springer Verlag , 2018 , Article Review)Purpose: Rectal culture screening for fluoroquinolone (FQ)-resistant Enterobacteriaceae before transrectal ultrasound guided prostate (TRUSPB) biopsy and targeted antibiotic prophylaxis (TAP) may decrease post-TRUSPB ...
