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61
CRASHWORTHINESS CHARACTERISTICS OF GFRP OVERWRAPPED PVC COMPOSITE TUBES
منشور في 2021"…At the same time, a sizeable 43.82% average increase in crush forc efficiency was also observed. …"
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62
PERFORMANCE OPTIMIZATION OF PROPANE PRE-COOLED MIXED REFRIGERANT (C3MR) PROCESS FOR NATURAL GAS LIQUEFACTION
منشور في 2024"…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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63
Seasonal weather conditions affect training program efficiency and physical performance among special forces trainees: A long-term follow-up study
منشور في 2018"…Seasonal data were continuously recorded during all SCTCs. Body mass decreased significantly (p<0.05) in all groups following SCTCs. …"
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64
Evaluation of pretreatment and membrane configuration for pressure-retarded osmosis application to produced water from the petroleum industry
منشور في 2021"…PRO is typically considered with seawater/river water pairings however greater energy can be recovered from hypersaline solutions including produced water (PW) from the petroleum industry. …"
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65
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66
Flight Scheduling in the Airspace
منشور في 2016"…When two flights are assigned to the same track and level, a minimum separation time has to be ensured. …"
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67
Nonlinear stochastic modeling for optimal dispatch of distributed energy resources in active distribution grids including reactive power
منشور في 2019"…The problem is expressed as an optimization programming to minimize annualized cost of losses and annualized investment cost of ESSs at the same time. The constraints of the programming are given as security constraints of the network and ESS operational constraints. …"
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68
Tailoring of the thermal, mechanical and dielectric properties of the polypropylene foams using gamma-irradiation
منشور في 2016"…It was found that structural properties were not significantly changed and the cellular structure of the PP foams sustain the same, while the thermal properties were significantly enhanced with increasing GI doses, due to the present cross-linking created within the irradiation. …"
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69
Enhanced photovoltaic performance with co-sensitization of a ruthenium(ii) sensitizer and an organic dye in dye-sensitized solar cells
منشور في 2016"…This performance is superior to that of solar cells sensitized with either N3 (6.10%) or RK-1 (5.82%) fabricated under the same conditions. The enhanced efficiency can be attributed to the decrease of the competitive light absorption by I-/I3-, dye aggregation, and charge recombination. …"
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70
Investigating the Effect of a Proposed Educational Robot on Students‘ Motivation and Learning of Thermodynamic Concepts
منشور في 2024"…While the control group was taught the same lesson using a conventional teaching method. …"
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71
Absorption of CO2 in aqueous blend of methyldiethanolamine and arginine
منشور في 2020"…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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72
Novel fluorinated surfactants for enhanced oil recovery in carbonate reservoirs
منشور في 2016"…Both surfactants were found to be thermally stable at a high temperature (90 °C). Surfactant‐B decreased the viscosity and the storage modulus of the HPAM. …"
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73
Modeling of dual-metal Schottky contacts based silicon micro and nano wire solar cells
منشور في 2014"…Depending on the work function difference between the metals and the wire dimensions, the saturation length increases by approximately an order of magnitude with a two order magnitude increase in minority carrier length. However current per surface area exposed to light is found to decrease rapidly with increase in length. …"
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74
Tapped Switched-Coupled-Inductors Γ-Source Inverter
منشور في 2019"…Furthermore, modified TSCL cell leads to decrease damaging effects of transformer leakage inductance by absorbing stored energy in windings. …"
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75
COVID-19 Preventive Measures Impact on Traffic Demand & Safety
منشور في 2020"…During the same time, a decrease of 42% to 54%, 20% to 54%, and around 36% was observed for traffic crashes involving deaths, major loss, and minor damages respectively. …"
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76
Tobacco Use and Its Health Effects among Professional Athletes in Qatar
منشور في 2016"…A total of 108 male professional athletes participated in the study from ten ball game teams in the same sport league in Qatar (age = 26.4 ± 5.1 yrs, height = 190.6 ± 11.9 cm, and weight = 91.5 ± 16.4 kg). …"
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77
An Overview of Solid Waste Management and Plastic Recycling in Qatar
منشور في 2012"…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. About 60% of MSW is organic material and about 300 kg is composed daily. …"
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78
A global multiregional life cycle sustainability assessment of national energy production scenarios until 2050
منشور في 2017"…The results showed that in comparison of BAU with RED scenario, GHG emissions associated would be 84% less in RED, wages will be 23% less and taxes would decrease by 22.4% under RED plan by 2050. In addition, energy sources responsible for the highest GHG emissions per kilowatt-hour of electricity produced are found as biomass, coal, waste and oil. …"
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79
Effect of Verbal Encouragement on Performance and Affective Responses in Male Sport Science Students during Sprint Modalities
منشور في 2024"…Moreover, the feeling score was greater after VETS compared to other conditions (p = [<0.001–0.001], d = [0.77–1.18]). …"
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80
Micromodel Study on Colloid Retention and Mobilization under different Geo-Chemical Conditions during Single and Two-Phase Flow
منشور في 2020"…The colloid reattachment on SWI found during the dissolution of the gas bubble for hydrophilic colloids due to their greater capillary potential. Whereas, the lifting-capillary forces on hydrophobic colloids resulted in aggregation of excess colloids on AWI. …"
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