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_ cm » _ pcm (Expand Search), _ co (Expand Search), _ m (Expand Search)
_ c » _ co (Expand Search), _ cu (Expand Search), _ ac (Expand Search)
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Ferroelectric Properties and Electrocaloric Effect in Dy2O3 Substitution on Lead-Free (Na0.5 Bi0.5)0.94 Ba0.06TiO3 Ceramic
Published 2023“…Higher stability of the ferroelectric (FE) phase was obtained at room temperature for the compositions y = 0.01, 0.02 and 0.05, with optimum values for y = 0.02 as remanent polarization Pr = 32µC/cm2, as well as piezoelectric coefficients d33 = 137 pC/N, kp = 0.27 and kt = 0.16, whereas a higher content of Dy (y = 0.08) induced a remarkable decrease of the ferroelectric and piezoelectric properties. …”
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Effect of sintering temperature of NBT–6BT lead-free ceramics on the structural, ferroelectric and piezoelectric properties
Published 2022“…It is found that the optimal ferroelectric and piezoelectric values were obtained at 1150 °C (P r = 27 µC/cm 2 , E c = 3.89 kV/mm and d 33 = 110 pC/N). …”
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Performance and analysis of kappa-carrageenan hydrogel for PFOA-contaminated soil remediation wastewater treatment
Published 2024“…Due to pore size shrinkage, the AC-kC and V-kC hydrogels achieved the highest PFOA rejection at pH 4, whereas the water flux decreased. …”
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Numerical analysis of spatial distribution of carbon in methane dry reforming over supported nickel catalyst in a packed bed reactor
Published 2024“…The total carbon deposited was estimated to be around 18 g after 10,000 s of Time on Stream (TOS) at 650 °C. As the temperature increased, the total carbon deposition decreased, although this reduction became negligible beyond 850 °C. …”
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Extraction and characterization of biofunctional lignocellulosic fibers from Pulicaria undulata plant and the effect of alkali treatment on their bio-physicochemical properties
Published 2024“…Similarly, the degradation temperature of P. undulata fibers also increased from 324.4 °C to 332.6 °C after alkali treatment. The raw fiber showed promising radical scavenging and reducing power properties, and demonstrated antifungal activity against Candida albicans. …”
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Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf)
Published 2022“…The tracer Alk*, defined as the deviation of potential alkalinity (AP) (where AP = TA + 1.26 [NO3]) from conservative potential alkalinity ((ApC), (ApC = S Ap′S′ where A'P and S′ are mean values for the whole surface ocean) has values primarily determined by CaCO3 precipitation and dissolution. …”
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Western diet induces mild metabolic impairment and aggravates neuropathology in an experimental mouse model of traumatic brain injury
Published 2024“…Hence, this study aims to investigate the impact of WD on TBI behavioral outcomes and neuropathology. Eight-week-old male C57BL6 mice were fed either WD or normal chow for 4 weeks prior to TBI induction. …”
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Improvement of heat sink performance using paraffin/graphite/hydrogel phase change composite coating
Published 2022“…The W-G-H composite coated solar panel displayed a surface temperature that was near ∼4 °C lower than the bare solar panel while operating. …”
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Impact of the COVID-19 pandemic on sexually transmitted infection testing and diagnosis in Lebanon: A retrospective chart review
Published 2024“…MethodsThis was a retrospective analysis of the clinic's database, including data on voluntary counseling and testing (VCT) for HIV, syphilis, hepatitis B virus (HBV), and hepatitis C virus (HCV). We compared the number and types of services provided, and the number and rate of positive VCT diagnoses pre- (Mar 2019–Feb 2020) and post- (Mar 2020–Feb 2021) COVID-19 onset. …”
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Influence of temperature on tire-pavement noise in hot climates: Qatar case
Published 2021“…OBSI test results at various pavements with different mean texture depths of dense-graded pavement showed that the temperature coefficient varied from 0.052 dB/°C to 0.142 dB/°C. There is an apparent trend of decreasing temperature coefficient with increasing mean texture depth of dense graded asphalt pavements. …”
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Modeling the influence of daily temperature and precipitation extreme indices on vegetation dynamics in Katsina State using statistical downscaling model (SDM)
Published 2023“…Tmax and Tmin were projected under low emissions at 20.1 0C and 14.25 0C (RCP2.6), 20.13 °C and 14.26 0C (RCP4.5), and 20.15 0C and 14.27 0C (RCP8.5) respectively. …”
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Land surface temperature responses to land use dynamics in urban areas of Doha, Qatar
Published 2024“…Specifically, the mean summer LST increases by 7.64 °C (0.34 °C annually), and the mean winter LST decreases by 4.87 °C (0.22 °C annually). …”
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Exploring Beyond Numeric Weight Loss: The Metabolic Effects of Semaglutide.
Published 2025“…Also, it enhanced glycemic control, as evidenced by significant reductions in hemoglobin A1C (HbA1c) with the 0.5 mg and 1.0 mg doses. From a baseline range of 8.1–8.7%, 0.5mg dose lowered HbA1c by 1.2–1.5%, while the 1.0 mg dose reduced it by 1.4–1.8%. …”
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Preterm birth in low-middle income Countries
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Control of the Speed of a Light-Induced Spin Transition through Mesoscale Core-Shell Architecture
Published 2018“…The presence of a shell decreases the activation energy, which is associated with the elastic properties of the core. …”
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