MOTIVATION AND LEARNING: A SURVEY STUDY IN PREPARATORY AND SECONDARY LEVELS IN QATARI SCHOOLS حسب Ben Fadhel, Slaheddine

"…The study, which involved preparatory (middle) and secondary (high) school students in Qatar, comprised a sample of 1803 male and female participants. …"
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Understanding the Scales Formation Inhibition Mechanism on C-Steel in a Sour Media حسب Al-Qahtani, Noora

"…In this work, the electrochemical behaviour of C-steel in sour (i) de-ionised water (DIW) and (ii) in different NaCl solutions were examined in an H2S system. A series of experiments were conducted at ambient (RT), 50 oC and at 80 oC using different combinations of inhibitors (A and B). …"
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Textile-Reinforced Mortar (TRM) System as a Strengthening Technique on Reinforced Concrete Beams حسب Afzal, Muhammad Shekaib

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Preparation and characterization of chemically synthesized polyaniline–polystyrene blends as a carbon dioxide gas sensor حسب J., Bhadra

"…The SEM results of the above polymerized blends reflect the formation of spherical nanoparticles with diameter ranging from 50nm to 90nm with a decrease in PS concentration that facilitates the formation of clusters. …"
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EFFECT OF PHENOL AS A CONTAMINANT ON THE WILD PEARL OYSTER PINCTADA IMBRICATA RADIATA IN QATAR: ECOTOXICOLOGICAL APPROACH AND USE OF OYSTER SHELL STRUCTURE AS A POTENTIAL MITIGATIO... حسب BARAH, FARAHNAZ GHOLAMREZA

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Development of a Mechanistic and Data-Driven Model for Multiphase Flow Leak Detection in Pipeline حسب Barooah, Abinash

"…The effect of different pressure constraints, pipe length, pipe diameter, two-phase fluid rheology, leak diameter, leak location, outlet liquid volume fraction, and flowing liquid hold-up on leak size, pressure, and flow rate is analyzed. Decreasing the liquid fraction in the outlet section of the leak leads to a slight increase (6% average) in the inlet mass flow rate and a significant decrease (50% average) in the outlet mass flow rate for fixed pressure constraints, resulting in an increased leak flow rate, pressure, and density. …"
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Sorption of benzene and naphthalene on (semi)-arid coastal soil as a function of salinity and temperature حسب NgueleuS.K.

"…To quantify the sorption rates of PHCs in (semi)-arid coastal soil environments, we conducted a series of controlled-laboratory batch experiments under variable temperature and salinity conditions. …"
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Mechanical Behavior of a Novel Nanocomposite Polysulphone - Carbon Nanotubes Membrane for Water Treatment حسب Wang, Kui

"…The commercial CNTs had a lengths of 1 ?m to 10 ?m and outer diameters of 10 nm to 20 nm (corresponded aspect ratios ranging from 50 to 1000), with purity >95% and BET surface area of 156 m2/g. …"
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A dynamic MOPSO algorithm for multiobjective optimal design of hybrid renewable energy systems حسب Sharafi, Masoud

"…Additionally, the set coverage metric value shows that at least 67% of Pareto solutions obtained by DMOPSO dominate the solutions resulted by other reported algorithms. By using a sensitivity analysis for the case study, it is found that if the PV panel and wind turbine capital cost are decreased by 50%, the total NPC of the system would be decreased by 18.8 and 3.7%, respectively.…"
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Corrosion behavior of API X100 steel material in a hydrogen sulfide environment حسب Okonkwo, Paul C.

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Dietary patterns and the risk of coronary heart disease among Jordanians: A case-control study. حسب Tayyem, R F

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Online monitoring of climatic parameters: a statistical study about environmental changes in Qatar حسب Mahmood, Tahir

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Experimental study of exhaust emissions and performance of a dual fuel IDI diesel engine حسب Badr, O.

"…Dual fuel engines of the compression ignition type provide an alternative approach for I.C. engines to improve economy, reduce exhaust emissions and achieve a greater power. The present contribution is an experimental investigation to evaluate such a statement using a modified Ricardo E6 indirect injection diesel engine. …"
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Mn-ferrite based solar thermochemical water splitting cycle: A thermodynamic evaluation حسب Bhosale R.R.

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A LASSO-BASED DEA FOR ECO-EFFICIENCY PERFORMANCE ASSESSMENT FOR THE GLOBAL FOOD AND BEVERAGES INDUSTRY حسب SALAMEH, DOA'A MOHAMMAD FUAD

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Aquaculture sediments amended with biochar improved soil health and plant growth in a degraded soil حسب Sajid, Mehmood

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Qatar Culture Collection of Microalgae: A Sustainable Source for Biodiesel Production and Omega Fatty Acid Compounds حسب Bounnit, Touria

"…Culture was done in liquid F/2 medium at 300 C for a period of 15 days, after which algae were harvested for the determination of total lipids. …"
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Vascular access types in hemodialysis patients in palestine and factors affecting their distribution: A cross-sectional study حسب Hamdan, Zakaria

"…We also highly recommend decreasing the duration of temporary catheters. …"
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Impact of the COVID-19 pandemic on sexually transmitted infection testing and diagnosis in Lebanon: A retrospective chart review حسب Sunji, Nadine

"…Post-COVID-19 onset, a total of 1350 VCT services and 406 medical consultations were provided, an overall 45 % decrease compared with pre-COVID-19 onset. The prevalence pre-COVID-19 onset of HIV, syphilis, HBV, and HCV was 0.8 %, 0.3 %, 0.2 %, and 0.1 %, respectively, and post-COVID-19 onset 1.2 %, 0.7 %, 0.3 %, and 0.3 %, respectively. …"
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Debt maturity, financial crisis and corporate performance in GCC countries: A dynamic-GMM approach حسب Zeitun, Rami

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