PERFORMANCE OPTIMIZATION OF PROPANE PRE-COOLED MIXED REFRIGERANT (C3MR) PROCESS FOR NATURAL GAS LIQUEFACTION حسب SHADY, ROBA TAWFIK SAAD MOHAMED

"…The achieved SEC of 0.2649 kWh/kg LNG, on a large-scale plant with a natural gas flow rate of 120 kg/s, results in an 18 MW compression power decrease, saving approximately 17.42 million QAR per year for each C3MR process. …"
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Energy Demand Estimation and Forecasting in Qatar حسب Khalifa, Ahmed Ali

"…For instance, Zarnikau (2003) suggests three possible forms. First, a linear specification involving the levels of the variables, where the energy demand is a linear function of production factors or of other elements affecting demand. …"
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Location privacy preservation in secure crowdsourcing-based cooperative spectrum sensing حسب Zina, Chkirbene

"…The existing solutions present a high level of complexity which decreases the performance of the systems. …"
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Asymmetric effects of oil price shocks on the demand for money in Algeria حسب Amirouche, Chelghoum

"…This paper investigates the symmetric and asymmetric effects of real oil prices on real money demand in Algeria over the period 1999:Q1–2020:Q1. Using a linear autoregressive distributed lag model (ARDL), and a nonlinear autoregressive distributed lag model (NARDL), we find no evidence of a long-term relationship among the variables. …"
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Impact On Local Pearl Oyster Pinctada Radiata Exposed To Chronic Levels Of Chlorine حسب Alfaqih, Arwa Shaif

"…This will lead to both, decrease in feeding and prevention from toxicity, resulting in a reduced growth and lower susceptibility, respectively.…"
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Enhancing oil removal from water using ferric oxide nanoparticles doped carbon nanotubes adsorbents حسب Fard, Ahmad Kayvani

"…The loading of Fe2O3 nanoparticles on the negative surface of CNT decreases the negative sign and magnitude of the zeta potential by overcoming the repulsive effects of the electrical double layers to allow the finely sized oil droplets to form larger droplets through coalescence. …"
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Evaluation of pretreatment and membrane configuration for pressure-retarded osmosis application to produced water from the petroleum industry حسب Dardor, Dareen

"…Pressure-retarded osmosis (PRO) is a promising membrane technology for harnessing the osmotic energy of saline solutions. …"
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Novel fluorinated surfactants for enhanced oil recovery in carbonate reservoirs حسب Al-Amodi, Adel O.

"…A decrease in oil/water interfacial tension (IFT) of almost one order of magnitude was observed when adding surfactant‐A. …"
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Absorption of CO2 in aqueous blend of methyldiethanolamine and arginine حسب Talkhan, Ahmed Gomaa

"…The study was carried out at different mixing ratios of MDEA and Arg at a total concentration of 2 moles per litre. The CO2 partial pressure varied from about 10 to 100 kPa, and the temperature varied from 293 K to 323 K. …"
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Modeling of dual-metal Schottky contacts based silicon micro and nano wire solar cells حسب Rabbani, M. Golam

"…However current per surface area exposed to light is found to decrease rapidly with increase in length. …"
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Investigating the utilization of healthcare services to manage respiratory tract infections (RTIs) among Qatari patients attended selected primary healthcare centers in Qatar حسب Islam, Nazmul

"…We have found no difference in the month-to-month rates of RTI-related GP visits (per 1000 total visits) over the study period (non-significant decreasing trend). …"
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An Overview of Solid Waste Management and Plastic Recycling in Qatar حسب Al-Maaded, M.

"…The analysis showed that Qatar produced around 2,000,000 tons of solid municipal waste annually, corresponding to a daily generation rate per capita of about 2. 5 kg. …"
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Micromodel Study on Colloid Retention and Mobilization under different Geo-Chemical Conditions during Single and Two-Phase Flow حسب Nishad, Safna

"…The retention of three different types of colloids (i.e., favorable, unfavorable, and medium favorable conditions) was observed visually in a micromodel. The pore-scale visualizations reveal the impact of colloid deposition profile on colloid release with an increase in flow rate and solution pH as well as a decrease in solution ionic strength. …"
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Strategic approaches in oral squamous cell carcinoma diagnostics using liquid biopsy حسب Kinane, Denis F.

"…In future, liquid biopsy may provide an effective screening process such that cancers including OSCC will be detected in the early stages rather than later when prognosis is poor and morbidity and debilitation are greater. In this screening process, periodontists and hygienists have a critical role in that they are adept in examining mucosa, they see patients with shared risk factors for periodontitis and OSCC, namely smoking and poor oral hygiene, and they see patients frequently such that OSCC examinations should be a routine part of the recall visit. …"
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High-intensity interval training improves acute plasma volume responses to exercise that is age dependent حسب Jabbour, Georges

"…However, PV decreases were significantly greater at pre-HIT compared with post-HIT during warm-up and after SCT (P < 0.01, respectively). …"
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Algal-algal bioflocculation enhances the recovery efficiency of Picochlorum sp. QUCCCM130 with low auto-settling capacity حسب Saadaoui, I.

"…Results showed that self-settlement capacity increased with cell size and can be indirectly related to a decreased zeta potential of larger cells which enhances the Van der Waals attractive forces. …"
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Algal-algal bioflocculation enhances the recovery efficiency of Picochlorum sp. QUCCCM130 with low auto-settling capacity حسب Saadaoui, Imen

"…Results showed that self-settlement capacity increased with cell size and can be indirectly related to a decreased zeta potential of larger cells which enhances the Van der Waals attractive forces. …"
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Effect Of Sand Blasting On Soda Lime Glass Properties حسب Bousbaa, C.

"…The sand used has mostly a rounded shape and presents a grain size distribution between 300 and 500 µm and hardness greater than that of the glass tested. …"
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Influenza prevalence and vaccine efficacy among diabetic patients in Qatar حسب Swapna, Thomas

"…Although vaccination reduced the incidence rate among DM patients, it was less effective in preventing symptoms. Further studies on a larger cohort and for a more extended period are required to investigate influenza prevalence and vaccine efficacy among DM patients.…"
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Influenza prevalence and vaccine efficacy among diabetic patients in Qatar حسب Swapna, Thomas

"…Although vaccination reduced the incidence rate among DM patients, it was less effective in preventing symptoms. Further studies on a larger cohort and for a more extended period are required to investigate influenza prevalence and vaccine efficacy among DM patients.…"
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