Forecast of the outbreak of COVID-19 using artificial neural network: Case study Qatar, Spain, and Italy حسب Shawaqfah M.

"…The model sensitivity was analyzed using the root mean square error (RMSE), the mean absolute percentage error and the regression coefficient index R2, which yielded highly accurate values of the predicted correlation for the infected and dead cases of 0.99 for the dates considered. …"
احصل على النص الكامل
احصل على النص الكامل

The Structure of the Free Volume in Poly(styrene-co-acrylonitrile) from Positron Lifetime and Pressure Volume Temperature (PVT) Experiments حسب Dlubek, Gunter

"…The mean hole volume, vh, varies in PS between 105 Å3 (27 °C) and 220 Å3 (190 °C), and shows a systematic decrease with increasing AN content, at Tg from 121 Å3 for PS to 102 (±2) Å3 for SAN50. …"
احصل على النص الكامل
احصل على النص الكامل

Higher egg consumption associated with increased risk of diabetes in Chinese adults - China Health and Nutrition Survey. حسب Wang, Yue

"…Logistic regression was used to examine the association. The mean age of the study population was 50·9 (sd 15·1) years. …"
احصل على النص الكامل
احصل على النص الكامل

Alveolar bone changes following bi-maxillary vertical molars' movements using clear aligners حسب Al-Warafi, Leena Ali

احصل على النص الكامل
احصل على النص الكامل

Correlation of structural and mechanical properties for Al-Al2O3-SiC hybrid metal matrix composites حسب Ahamad, Naseem

"…Al-Al2O3-SiC hybrid composite has been developed through stir casting with addition of ceramics i.e. Al2O3-SiC (2.5 wt.%, 5.0 wt.%, 7.5 wt.% and 10.0 wt.%) in relative and symmetrical proportion. …"
احصل على النص الكامل
احصل على النص الكامل

Linear hydrogen gas sensors based on bimetallic nanoclusters حسب Ayesh, Ahmad I.

احصل على النص الكامل
احصل على النص الكامل

دراسة تأثير تركيز تيترا أيزوبروبكسيد التيتانيوم (TTIP) على بعض مواصفات ألياف ثنائي أكسيد التيتانيوم النانوية المغزولة كهربائياً... حسب طهماز, غزل

احصل على النص الكامل

Foamed phase change materials based on recycled polyethylene/paraffin wax blends حسب Sobolčiak, Patrik

"…Differential Scanning Calorimetry was used to determine the specific enthalpies of melting (22.4–25.1 J/g) what is the latent heat of materials utilized during a heat absorption. A stability of samples during 10 heating/cooling cycles was demonstrated. …"
احصل على النص الكامل
احصل على النص الكامل

Influenza prevalence and vaccine efficacy among diabetic patients in Qatar حسب Swapna, Thomas

"…Among DM patients, influenza was the most prevalent respiratory pathogen at 48.9%. Influenza virus A (IVA) was the most circulating type, contributing to 38.4%, followed by IVB contributing to 10.4% of total respiratory infections. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Influenza prevalence and vaccine efficacy among diabetic patients in Qatar حسب Swapna, Thomas

"…Among DM patients, influenza was the most prevalent respiratory pathogen at 48.9%. Influenza virus A (IVA) was the most circulating type, contributing to 38.4%, followed by IVB contributing to 10.4% of total respiratory infections. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Effects of superelastic nano-NiTi additions on electroless Ni –P coating properties under bending حسب MacLean M.

"…In this study, electroless Ni –P-nano-NiTi composite coatings containing 5.14 wt%, 6.07 wt%, and 7.02 wt % NiTi were subjected to three-point bend testing in order to determine bending properties. …"
احصل على النص الكامل
احصل على النص الكامل

Mixed siliciclastic-carbonate-evaporite sedimentation in an arid eolian landscape: The Khor Al Adaid tide-dominated coastal embayment, Qatar حسب John M., Rivers

احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Mixed siliciclastic-carbonate-evaporite sedimentation in an arid eolian landscape: The Khor Al Adaid tide-dominated coastal embayment, Qatar حسب John M., Rivers

احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Prospects Of Amino Acids And Ionic Liquids As Natural Gas Hydrate Inhibitors For Offshore Flow Assurance حسب Qureshi, M. Fahed Aziz

"…The inhibitors tend to show better hydrate inhibition effect at low pressures (40 bars) and their inhibition effect decreases as the pressure rises. At the same concentration (10 wt%), the ammonium-based ionic liquid [EA][Of] provided the inhibition effect similar to MEG and at the higher concentration (20 wt%) the amino acid glycine provided better hydrate inhibition effect than the MEG. …"
احصل على النص الكامل

Synthesis and properties of HA/ZnO/CNT nanocomposite حسب Ding M.

"…The goal of this study was to examine the tribomechanical properties of hydroxyapatite (HA)/ZnO and HA/ZnO/CNT composite ceramics (carbon nanotubes; with different ratios 0.5 wt%, 1.0 wt%, and 1.5 wt%). The composites were synthesized using the hydrothermal method in an autoclave. …"
احصل على النص الكامل
احصل على النص الكامل

Molecular dynamics of CH4/CO2 on calcite for enhancing gas recovery حسب Carchini, Giuliano

"…Focusing on the effect of pressure, RDF peaks intensities increase, although this effect is limited to the 1-5 MPa range. Moreover, the high CO2 presence further decreases the effect of pressure on methane adsorption. …"
احصل على النص الكامل
احصل على النص الكامل

The Effect of Hyperoxia on Central and Peripheral Factors of Arm Flexor Muscles Fatigue Following Maximal Ergometer Rowing in Men حسب Volianitis, Stefanos

"…Results: Arterial hemoglobin O2 saturation was reduced to 92.5 ± 0.2% during exercise with normoxia but maintained at 98.9 ± 0.2% with hyperoxia. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Conversion of Organic Municipal Wastes into Biochars and their Effect on Fertility Parameters of Normal and Sabkha Soils of Qatar حسب Ahmedna, Mohamed

"…To each pot, sufficient amount of 0.25-mm sieved biochar was mixed with soil to yield carbon to soil ratios of 0, 1, and 2% (wt/wt). Box-Behnken experimental design was used instead of the full factorial to decrease the number of treatments to a manageable level (126 treatments) with three replications at the center. …"
احصل على النص الكامل
احصل على النص الكامل

Effect of graphene loading on thermomechanical properties of poly(vinyl alcohol)/starch blend حسب Jose, J.

"…Mechanical properties results showed that the optimum loading of graphene was 0.5 wt % in the blend. XRD studies indicated uniform dispersion of graphene in PVA/starch matrix upto 0.5 wt % loadings and further increase caused agglomeration. …"
احصل على النص الكامل
احصل على النص الكامل

Effect of gamma irradiation on the microstructure and morphology of polyethylene oxide and polyvinyl alcohol blends حسب Al-Maadeed, M.

"…Thin films of a blend of 90, 75, 50 (wt/wt%) percentage of polyethylene oxide and polyvinyl alcohol were synthesized and irradiated with 5, 25, 50, 100 and 200 kGy. …"
احصل على النص الكامل
احصل على النص الكامل