Impact of Draw Solution Concentration on Forward Osmosis Process: A Simulation Study by Alfahel, Radwan

“…Also, while increasing concentration of draw solution, energy consumption decreased. The maximum recovery rate of 33% was achieved using (0.5M NaCl) draw solution and a flow rate of 40000 m3/day. …”
Get full text
Get full text

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

“…The non-ohmic behavior of I–V characteristics by the blend films indicates that these nanocomposite films may have some utility in electronic device applications; an increase in conductivity is observed with decreasing PS concentration. …”
Get full text
Get full text
Get full text

Effect of using Cement Kiln Dust as a nano-material on the strength of cement mortars by Alnahhal, Wael

“…The CKD was milled up to 4 hours in a planetary ball mill. In addition to the control cement mortar mixture with 0% CKD, a total of 28 concrete mortar mixtures were prepared with four different replacement percentages of nano-CKD (5, 10, 15, and 20 %), and seven different milling times (1, 1.5, 2, 2.5, 3, 3.5, and 4 hours). …”
Get full text
Get full text

CO2 enhanced gas recovery and sequestration in depleted gas reservoirs: A review by Hamza A.

Get full text
Get full text
Get full text

Urology Residents' Perspectives on the In-House On-Call Systems: A Study in an Accredited Academic Center by Khalil, Ibrahim A. and Ibrahim, Tarek and Aldeeb, Maya and Mohamed, Ahmed and Ben Salah, Rym and Aboumarzouk, Omar M. and Al-Naimi, Abdulla

“…Working hours: compliance and violations There was no significant difference in the mean weekly working hours (p = 0.1). However, the total number of duty hours violations decreased in the 12-hour on-call system. …”
Get full text
Get full text

Khalasa date palm leaf fiber as a potential reinforcement for polymeric composite materials by Mahdi E.

“…Tensile properties revealed that Khalasa fiber had tensile strength/tensile modulus of 47.99 � 13.58 MPa and 2.1 � 0.40 GPa, respectively. The results are also demonstrated that high variation in the mechanical properties and morphology was showed in KDPLF. …”
Get full text
Get full text
Get full text

Influence of natural gas composition on adsorption in calcite Nanopores: A DFT study by Elbashier E.

“…The nanopores absorbed up to 28 and 24 molecules of CH4 and CO2, respectively, and the adsorption energy decreased to −0.0062 and −0.0075 eV/Å2 for each. Although the nanopore was filled spatially by the molecules, its surface still has an affinity to absorb more gas molecules energetically. …”
Get full text
Get full text
Get full text

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... by BARAH, FARAHNAZ GHOLAMREZA

“…Nevertheless, this was in reverse at pH 10. The phenol desorption was 97.44% and 98.64% by reacting 0.1 M NaOH and 0.1 M HCl respectively.…”
Get full text

Textile-Reinforced Mortar (TRM) System as a Strengthening Technique on Reinforced Concrete Beams by Afzal, Muhammad Shekaib

“…Similarly the average values of energy absorption for using PBO as strengthening material were 2.0 × , 1.0 × and 1.5 × for “ρ” _“s” ^“1” “ = 0.5%,” “ρ” _“s” ^“2” “ = 0.72% and” “ρ” _“s” ^“3” “ = 1.27%” specimens respectively to that of the control specimen. …”
Get full text
Get full text

Proline Accumulation In Plants Of Different Ecological Groups As A Response To Water Deficit by Batanouny, K. H. [كمال الدين حسن البتانوني]

Get full text

Changing Trends in the Referral and Timing of Treatment for Congenital Cryptorchidism: A Single-Center Experience from Bosnia and Herzegovina. by Zvizdic, Zlatan

“…The analysis of the observed two periods (2008-2010 and 2015-2017) showed a statistically significant decrease in the mean referral age and the mean age at surgery over the last 5 years (2015-2017) (p = 0.007 and p = 0.003, respectively). …”
Get full text
Get full text

Sorption of benzene and naphthalene on (semi)-arid coastal soil as a function of salinity and temperature by NgueleuS.K.

“…The sorption of naphthalene was not affected by the change in salinity but increased by 18% when the temperature decreased from 35 to 5 �C. A sorption kinetic model was also applied to define the sorption behavior of benzene and naphthalene for the coastal soil collected in Qatar and the best fits were achieved with the Langmuir sorption isotherm.…”
Get full text
Get full text

Estimating the production and mortality of fine roots using minirhizotrons in a Pinus densiflora forest in Gwangneung, Korea by Han, Seung Hyun

“…The aim of this study was to estimate fine root production (FP) and fine root mortality (FM) at 0–10, 10–20, and 20–30 cm soil depths using minirhizotrons in a 75-year-old Pinus densiflora Sieb. et Zucc. forest located in Gwangneung, Korea. …”
Get full text
Get full text

Effect of Bariatric Surgery on Intima Media Thickness: A Systematic Review and Meta-Analysis by Jamialahmadi, Tannaz

“…Methods: A systematic literature search in PubMed, Scopus, Embase, and Web of Science as well as grey literature was performed from inception to 1 July 2022. …”
Get full text
Get full text
Get full text

A new process for the recovery of ammonia from ammoniated high-salinity brine by Mohammad, Ameera F.

“…The initial ammonia concentration in a Solvay effluent of 13,700 mg/L N was decreased to 190 mg/L N. …”
Get full text
Get full text

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

“…In addition, we observed the presence of the omega-3 and 9 long-chain polyunsaturated fatty acids (LC-PUFAs), such as eicosapentaenoic (EPA, 20:5 n-3), docosahexaenoic (DHA, 22:6 n-3) and Nervonic Acid (C24:1 n-9) acids, which have a high commercial value and are known for their beneficial effects on human health…”
Get full text
Get full text

Trade Liberalization and Economic Diversification: A Dynamic CGE Model for The Economy of Qatar by Vellinga, Nico

Get full text

Optimization of cultivation conditions for combined nutrient removal and CO2 fixation in a batch photobioreactor by Al Ketife, Ahmed MD

“…CONCLUSION Optimum values 5% CO2, 100 μE and 22 °C were identified for Cc,g, I and T, respectively, with μ and Rc reaching 1.53 day−1 and 1 g L−1 day−1, respectively, along with associated nutrient removal of 100%. …”
Get full text
Get full text

A QoE-Aware Joint Resource Allocation and Dynamic Pricing Algorithm for Heterogeneous Networks by Trakas, Panagiotis

Get full text
Get full text

Exploitation of Citrus Peel Extract as a Feedstock for Power Generation in Microbial Fuel Cell (MFC) by Kondaveeti, Sanath

“…The polarization analysis revealed a high-power generation of 71.1 mW/m2 with low OL of 3 kg/m3. The decrease in pH and high volatile fatty acids (VFAs) generation was noted at high OL. …”
Get full text
Get full text