Optimizing chemisorption based direct air capture unit efficiency in HVAC systems: A study on the impact of DAC location and adsorption conditions as a response to the climate cris... حسب Yasser M. Abdullatif (16500945)

"…Specifically locating DAC unit at Position 6 increases DAC efficiency from 5.3% to 27.19% for 8th of June 2022 at 11:00 am in Qatar. …"

Impact of Ge content on the electrochemical performance of Germanium Oxide/Germanium/ reduced graphene (GeO₂/Ge/r-GO) hybrid composite anodes for lithium-ion batteries حسب Christian Randell Arro (17128855)

"…At 75% Ge mass loading the anode suffered with limited cycling retention of 57.5% at the cost of greater specific capacities. …"

An additive manufacturing approach based on electrohydrodynamic printing to fabricate P3HT:PCBM thin films حسب Zulfikre Esa (19457344)

"…The estimated film mass and thickness were found between 3.235 and 23.471 mg and 597.5 nm to 1.60 µm, respectively. The films exhibited a broad visible absorption spectrum ranging from ~ 340 to ~ 600 nm, with a maximum peak λ_max located at ~ 500 nm. …"

Microwave-synthesized composite preformed particle gels based on tragacanth gum and palygorskite for high-salinity high-temperature conditions حسب Ahmed Ben Ali (17792594)

"…Swelling behavior in real Gulf seawater (TDS = 45,2 mg/L) and rheological measurements taken at elevated temperatures (80 °C and 100 °C) showed that the addition of Pal enhanced gel rigidity but slightly reduced swelling capacity, likely due to increased steric hindrance. The formulation TPAC₂ (2.5 g Pal) exhibited an optimal balance between swelling (14.2 g/g at 100 °C) and mechanical strength, making it a strong candidate for reservoir applications. …"

Cognitive Load Estimation Using a Hybrid Cluster-Based Unsupervised Machine Learning Technique حسب Iqbal Hassan (22155274)

"…<p dir="ltr">The increasing prevalence of non-invasive, portable Electroencephalography (EEG) sensors for neuro-physiological measurements has propelled EEG-based assessments of cognitive load (CL) into the spotlight. …"

First principles investigation of CO and CO₂adsorption on graphene nanoribbon modified by ZrO_x حسب Ahmad I. Ayesh (10188469)

"…In particular, the Zr doped GNR has the highest capacity for both gases' adsorption, where the adsorption energy for CO and CO₂ increases 18.4 and 16.5 times, respectively, reference to the pristine GNR. …"

Characterizing the dynamics of climate and native desert plants in Qatar حسب Meshal Abdullah (17746950)

"…However, the probability of rainfall events over 80 mm was less than 5%, while low rainfall seasons (1–17 mm) were more likely (90–99% chance). …"

Enhancing human thermal comfort in hot arid cities: A systematic review of urban heat island observations and mitigation strategies حسب Omer Abedrabboh (17346847)

"…These areas, characterized by extreme heat and drought, face increased outdoor thermal discomfort and high energy demands for cooling. …"

Enhancing photocatalytic partial oxidation of methane to methanol: Experimental investigation of 2D/metal oxide composite catalysts حسب Amira Chebbi (19756983)

"…Among the three catalysts tested, the composite W₁₈O₄₉/g-C₃N₄ demonstrated remarkable catalytic activity of 62.3 μmol g−1 h−1 under visible light, nearly 4-fold higher than pristine W₁₈O₄₉ and 5-fold higher than g-C₃N₄. The enhanced performance is attributed to the forming of a Z-scheme heterojunction system, as evidenced by XPS analysis showing increased oxygen vacancy density and strong electronic coupling between the components, further confirmed by electrochemical characterization revealing improved charge separation efficiency. …"

Tailored nanofiber composites for a flexible piezoelectric nanogenerator: Poly(vinylidene fluoride) with BaTiO₃/NiFe₂O₄ حسب Hemalatha Parangusan (6556133)

"…The electroactive phase content of PVDF is increased by adding nanofillers, and the interfacial polarization between the nanofiller and polymer matrix is significantly enhanced. …"

Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment حسب Hamdan, Nasser

"…Trace elements such as Zn, Cu, Fe, Cr and Mn that are markers for traffic sources, Ni and V that are markers for heavy oil combustion, and Pb, which is attributed to industrial emissions, were also identified in PM₁₀. …"
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The Impact of Arabic Part of Speech Tagging on Sentiment Analysis: A New Corpus and Deep Learning Approach حسب Munem Nerabie, Abdul

"…While numerous morphological analyzers and PoS taggers were proposed for Modern Standard Arabic (MSA), we are now witnessing an increased interest in applying those techniques to the Arabic dialect that is prominent in social media. …"
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Comparative Effect of Sodium Butyrate and Sodium Propionate on Proliferation, Cell Cycle and Apoptosis in Ovarian Cancer Cells حسب Danaf, Daniella

"…The mechanism of cell death induced by NaB and NaP was assessed using Annexin V/P. I and western blot analysis of proteins that regulate and initiate apoptosis, namely PARP1, Caspase 3, Bcl-2, and Bax. …"
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Climate change dynamics for global energy security and equity: Evidence from policy stringency drivers حسب Dagar, Vishal

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Typing and characterization of Staphylococcus Aureus isolated from Jordan. (c2010) حسب Khalil, Wissam M.

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Effect of Biochar, Potting Mixture and their Blends to Improve Ocimum basilicum Growth in Sandy Soil حسب Mohammad Danish (2879303)

"…The combination of 6% biochar and 6% PM increased seed germination by 85% compared to the control, while 6% biochar applied in sandy soil reduced seed germination by 29%. …"

Influence of co-current vapor flow on falling film over horizontal tube حسب Furqan Tahir (14429547)

"…The average film thickness and wetting time is reduced by 14.1% and 18.5%, respectively for the vapor velocity of 6 m/s compared to the no vapor flow, for 0.02 kg/(m·s). …"

Isolation and evaluation of Qatari soil rhizobacteria for antagonistic potential against phytopathogens and growth promotion in tomato plants حسب Amina BiBi (17679402)

"…Further in-vivo testing regarding the effectiveness of rhizobacteria in the presence of the phytopathogen was also completed using the Hoagland medium. LEMR3 and SALIR5 (both identified as two strains of <i>B. subtilis</i>) supported the tomato seedlings to overcome the disease and significantly (<i>p</i> ≤ 0.05) increased above and belowground biomass compared to the control. …"

Raising breast cancer awareness حسب Nature Research (16552612)

Influence of temperature on tire-pavement noise in hot climates: Qatar case حسب Okan Sirin (14603304)

"…This temperature correction factor is developed based on the local environment (temperature varying from 5 °C to 35 °C) and generally varies with different pavements. …"