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81
Floating capital pattern and biomass slope allocation method in the life history of calotropis procera (AIT.) AIT. F.
منشور في 1992"…There were differences in the direction of change in the root/shoot ratio: increase, decrease and no change. The mean root/shoot ratio was 0.21:1 during the juvenile phase, rising to 0.68:1 and stabilized at 0.5:1 prior to and following the reproductive phase. …"
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82
Effects of Combined Calcium Hypochlorite and Chlorine Dioxide on Drinking Water Quality in Qatar and Disinfection by Products Formation
منشور في 2016"…Chlorine dioxide levels decrease as the free chlorine residual levels increased. …"
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83
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84
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85
Collision/reaction cell ICP-MS with shielded torch and sector field ICP-MS for the simultaneous determination of selenium isotopes in biological matrices
منشور في 2011"…The determinations of selenium isotopes in biological samples were performed using both inductively coupled plasma collision/reaction cell quadruple mass spectrometer (CRC-ICP-QMS) and inductively coupled plasma sector field mass spectrometers (SF-ICP-MS). To significantly decrease the argon-based interferences at m/z 74 (36Ar38Ar), 76 ( 38Ar38Ar, 40Ar36Ar), 78 ( 38Ar40Ar), and 80 (40Ar40Ar), the gas-flow rates of a helium and hydrogen mixture used in the collision cell were optimized to 1.0 mL/min H2 and 3.5 mL/min He. …"
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86
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87
Preparation and characterization of chemically synthesized polyaniline–polystyrene blends as a carbon dioxide gas sensor
منشور في 2013"…The TGA of the polymer blends reveals five-step degradation including four due to the pure polymer and one due to the blend formation. …"
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88
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92
Cold Plasma as Effective Tool for Aluminum Surface Cleaning
منشور في 2016"…In the final step, two layers of foils are wounded together and rolling oil is sprayed between the two layers and the -twin foil- is rolled down. …"
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93
Mechanical and microstructure characterization of hard nanostructured N-bearing thin coating
منشور في 2015"…The main problem with steel, is that it exhibits a relatively low hardness (below 10GPa) which strongly decreases upon annealing above about 600K. …"
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94
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95
Global, regional, and national burden of upper respiratory infections and otitis media, 1990–2021: a systematic analysis from the Global Burden of Disease Study 2021
منشور في 2024"…Globally, the incidence rate of URIs was 162 484·8 per 100 000 population (144 834·0 to 183 289·4) in 2021, a decrease of 10·5% (–12·4 to –8·4) from 1990, when the incidence rate was 181 552·5 per 100 000 population (160 827·4 to 206 214·7). …"
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Pd nanocrystals encapsulated in MOF-derived Ni/N-doped hollow carbon nanosheets for efficient thermal CO oxidation: unveiling the effect of porosity
منشور في 2023"…Conspicuously, the T100 of Pd/Ni-MOF-HNC was lower than those of most previously reported Pd-based catalysts due to the high porosity, surface area, and electronic interaction of Pd/Ni-Nx, and Ni-metal defects, which promote the adsorption/activation of reactants (CO + O2), decrease the activation energy to 73.1 kJ mol−1 and enhance the reaction rate at the same CO conversion percentage. …"
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98
Novel potentials of the DPP-4 inhibitor sitagliptin against ischemia-reperfusion (I/R) injury in rat ex-vivo heart model
منشور في 2018"…Sitg oral treatment of different doses (25, 50, 100, and 150 mg/kg/day), or saline as a Control. …"
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99
Application of magnetic nanoparticles for the removal of oil from oil-in-water emulsion: Regeneration/reuse of spent particles
منشور في 2021"…This change is due to the decrease in the emulsion stability and the formation of fine oil droplets. …"
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100
Utilization of Emergency Services by Children with Asthma in Qatar
منشور في 2022"…Results: There were 41,343 visits to PECs due to asthma in 2019 from 18,382 children of more than 100 different nationalities. Around 60% were boys aged 2 to 13 years, with the peak of utilization in October and November (Figure 1) and during the day between 2:00 PM to 10:00 PM. …"
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