Browsing by Title
Now showing items 24220-24239 of 52941
-
Solar thermochemical splitting of H2O and CO2 using nonvolatile metal oxides
( AIChE , 2017 , Conference Paper)In this study, a Co ferrite/ZrO2 ceramic nanornixture was synthesized by the propylene-oxide-assisted sol-gel method. Cobalt, iron, and zirconium nitrate salts were used as the metal precursors, and ethanol and propylene ... -
Solar thermochemical splitting of H2O and CO2 using nonvolatile metal oxides
( AIChE , 2017 , Conference Paper)In this study, a Co ferrite/ZrO2 ceramic nanornixture was synthesized by the propylene-oxide-assisted sol-gel method. Cobalt, iron, and zirconium nitrate salts were used as the metal precursors, and ethanol and propylene ... -
Solar thermochemical splitting of H2O and CO2 using nonvolatile metal oxides
( AIChE , 2017 , Conference Paper)In this study, a Co ferrite/ZrO2 ceramic nanornixture was synthesized by the propylene-oxide-assisted sol-gel method. Cobalt, iron, and zirconium nitrate salts were used as the metal precursors, and ethanol and propylene ... -
Solar thermochemical splitting of H2O and CO2 using nonvolatile metal oxides
( AIChE , 2017 , Conference Paper)In this study, a Co ferrite/ZrO2 ceramic nanornixture was synthesized by the propylene-oxide-assisted sol-gel method. Cobalt, iron, and zirconium nitrate salts were used as the metal precursors, and ethanol and propylene ... -
Solar thermochemical ZnO/ZnSO4 water splitting cycle for hydrogen production
( Elsevier Ltd , 2017 , Article)In this paper, solar reactor efficiency analysis of the solar thermochemical two-step zinc oxide-zinc sulfate (ZnO-ZnSO4) water splitting cycle. In step-1, the ZnSO4 is thermally decomposed into ZnO, SO2, and O2 using solar ... -
Solar Water Pumping — An Analytical Overview
( Qatar University , 1988 , Article)Two basic thermodynamic conversion techniques of solar water pumping are recognized. In the first technique, a high internal energy fluid heated in a solar collector is used to power a conventional heat engine which drives ... -
Solar-driven hydrogen production from a water-splitting cycle based on carbon-TiO2 nano-tubes
( Elsevier Ltd , 2022 , Article)This study illustrates the structuring of the TiO2 within carbon nano-tubes to enhance the solar-driven production of hydrogen (S-DPOH) via water splitting. The newly developed Carbon-TiO2 nano-tubes (C-Ti-NTs) aimed at ... -
SOLD: A node-Splitting algorithm for R-tree based on Objects' Locations Distribution
( SAGE Publications Ltd , 2019 , Article)Spatial data indexing methods are of extreme importance as they massively build up as a result of the explosive growth in capturing data with spatial features. No matter how much the data size is, eventually it will reside ... -
Solely abluminal drug release from coronary stents could possibly improve reendothelialization
( John Wiley and Sons Inc. , 2016 , Article)Objectives To compare a new stent with an asymmetric coating, eluting the drug to the abluminal surface, to a stent with a conventional coating eluting the drug both to the luminal and the abluminal side. Background Stents ... -
Soliciting the Oral Route as a Logical Approach to Managing Colon Cancer
( Frontiers Media S.A. , 2021 , Article)According to Global Cancer Incidence, Mortality and Prevalence (GLOBOCAN) 2018, colon cancer (CC) is the third most common cancer in men and second in women worldwide (Bray et al., 2018). Approximately 1.8 million new colon ... -
Solid Dispersion Formulations by FDM 3D Printing—A Review
( MDPI , 2022 , Article)Additive manufacturing (AM) is revolutionizing the way medicines are designed, manufactured, and utilized. Perhaps, AM appears to be ideal for the fit-for-purpose manufacturing of medicines in contrast to the several ... -
Solid Sorbents as a Retrofit Technology for CO2 Removal from Natural Gas Under High Pressure and Temperature Conditions
( Nature Research , 2020 , Article)The capture of CO2 under high pressure and temperature is challenging and is required in a number for industrial applications including natural gas processing. In this work, we examine the use of benchmark hybrid ultraporous ... -
Solid-State Ac-Conductivity Analysis For The Long Debated Catalytic Activity Of The Boralite Sieve
( Qatar University , 1996 , Article)The ac-phase dependent impedance, capacitance and dielectric loss of boralite are measured and correlated with those of a similar history HZSM-5 as a function of frequency (0.1-100 kHz) and temperature (373-638 K) at 0.8 ... -
Solid-state planar microsensors for selective potentiometric determination of ethylmorphine
( Marcel Dekker Inc. , 1999 , Article)The potentiometric performance characteristics of microelectronically fabricated solid-state planar ethylmorphine sensors based on silicon/silicon nitride substrate and a mixture of ethylmorphine-tetraphenylborate and ... -
Solidification Of Steel Billets In Continuous Casting
( Qatar University , 1991 , Article)For practical operation, it is necessary to know how the solidification of liquid steel progresses i.e. when and where a strand has completely solidified. Decisions on, the casting speed, the spray water flow rates and ... -
Solubility and Tie Line Data for The System Sea Water - Xylene - n - Butanol
( Qatar University , 1989 , Article)Ternary equilibrium data for the system Sea Water - Xylene-n-Butanol were determined at 23°C. The maximum solubility of n-Butanol in sea water was found to be 4.763% at room temperature. Xylene was found to be practically ... -
Soluble ACE2 and angiotensin II levels are modulated in hypertensive COVID-19 patients treated with different antihypertension drugs.
( Taylor and Francis , 2022 , Article)This study examines the effect of antihypertensive drugs on ACE2 and Angiotensin II levels in hypertensive COVID-19 patients. Hypertension is a common comorbidity among severe COVID-19 patients. ACE2 expression can be ... -
Soluble ACE2 and Angiotensin II levels Modulated in Hypertensive COVID-19 Patients treated with different Antihypertension Drugs
( Qatar University Press , 2021 , Poster)Hypertension is a major risk factor and common comorbidity among severe Coronavirus Disease 2019 (COVID-19) patients. Prominent antihypertensive drugs, such as angiotensin-converting-enzyme inhibitors (ACEi) and angiotensin ... -
Solution combustion synthesis of active catalysts for hydrogen production from ethanol
( AIChE , 2014 , Conference Paper)Solution combustion synthesis method was used to synthesize Cu and Ni based catalysts active for hydrogen production from ethanol decomposition reaction. The catalyst synthesis parameters (such as fuel to oxidizer ratio, ... -
Solution combustion synthesis of active catalysts for hydrogen production from ethanol
( AIChE , 2014 , Conference Paper)Solution combustion synthesis method was used to synthesize Cu and Ni based catalysts active for hydrogen production from ethanol decomposition reaction. The catalyst synthesis parameters (such as fuel to oxidizer ratio, ...
