Browsing Qatar University Institutional Repository by Title
Now showing items 10906-10925 of 27413
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Hydrocarbon Degrading Candidate Bacteria Isolated From Qatar Polluted Soil and Molecular Identification of Key Enzymes Coding Genes
(2021 , Master Thesis)Sixteen bacterial strains were isolated form contaminated soils and identified as Bacillus subtilis, Bacillus circulans, Burkholderia cepacia, Pseudomonas aeruginosa, Micrococcus luteus, Raoultella ornithinolytica and ... -
Hydrocarbon-based fuel cell membranes: Sulfonated crosslinked poly(1,3-cyclohexadiene) membranes for high temperature polymer electrolyte fuel cells
( Elsevier , 2015 , Article)High temperature fuel cell membranes based on poly(1,3-cyclohexadiene) were prepared by a Polymerization-Crosslinking-Sulfonation (PCS) approach, and a broad range of membrane compositions were achieved using various ... -
Hydrogel Sensors for the Agricultural Applications
( Qatar University Press , 2020 , Poster)This work is focused on the design and fabrication of hydrogel sensors for the agricultural applications "a multi-sensory device". Agriculture is an important contributor to Qatar's economy, as the country is aiming to ... -
Hydrogels for Advanced Stem Cell Therapies: A Biomimetic Materials Approach for Enhancing Natural Tissue Function
( Institute of Electrical and Electronics Engineers , 2018 , Article)Stem-cell-based therapy is a promising approach for the treatment of a myriad of diseases and injuries. However, the low rate of cell survival and the uncontrolled differentiation of the injected stem cells currently remain ... -
Hydrogen Atom and Equivalent Form of the Levy-Leblond Equation
( Institute of Physics Publishing , 2017 , Article)We discuss the equivalent form of the Levy-Leblond equation such that the nilpotent matrices are two-dimensional. We show that this equation can be obtained in the non-relativistic limit of the (2+1)-dimensional Dirac ... -
Hydrogen bond coupling in sodium dihydrogen triacetate
( Springer Verlag , 2014 , Article)The coupling of hydrogen bonds is central to structures and functions of biological systems. Hydrogen bond coupling in sodium dihydrogen triacetate (SDHTA) is investigated as a model for the hydrogen bonded systems of the ... -
Hydrogen Gas Production from the Injection of Nanoscale Zero-Valent Iron and Sodium Borohydride Solutions: Potential Effects Near Injection Wells
( Qatar Univesrity Press , 2020 , Conference Paper)The injection of nano-scale zero-valent iron (nZVI) is a remediation technique for the treatment of organic and metal contamination in soil and groundwater. The hydrogen gas (H2) produced during the reaction of nZVI and ... -
Hydrogen Production via Ethanol Decomposition over Bimetallic Catalyst
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Bimetallic catalyst shows distinct physical and chemical properties differ from its monometallic catalyst due to the high synergy between the monometals. Bimetals of transition metals shows different applications in the ... -
Hydrogen production via solar driven thermochemical cerium oxide-cerium sulfate water splitting cycle
( Elsevier Ltd , 2019 , Article)Production of H2 via water splitting reaction driven by concentrated solar power is one of the promising ways to fulfill the future energy demand. In this investigation, the cerium oxide-cerium sulfate H2O splitting (WS) ... -
Hydrogen storage in gas reservoirs: A molecular modeling and experimental investigation
( Elsevier , 2023 , Article)Hydrogen is one of the clean energy sources that can be used instead of fossil fuel sources to reduce greenhouse emissions. However, hydrogen supply intermittency significantly reduces the deployment and reliability of ... -
Hydrogen storage in gas reservoirs: A molecular modeling and experimental investigation
( Elsevier , 2023 , Article)Hydrogen is one of the clean energy sources that can be used instead of fossil fuel sources to reduce greenhouse emissions. However, hydrogen supply intermittency significantly reduces the deployment and reliability of ... -
Hydrogen Underground Storage in Silica-Clay Shales: Experimental and Density Functional Theory Investigation
( American Chemical Society , 2023 , Article)In the context of reducing the global emissions of greenhouse gases, hydrogen (H2) has become an attractive alternative to substitute the current fossil fuels. However, its properties, seasonal fluctuations, and the lack ... -
Hydrogeochemical characterization and quality evaluation of groundwater suitability for domestic and agricultural uses in the state of Qatar
( Elsevier B.V. , 2020 , Article)This study aims to investigate the groundwater (GW) quality in Qatar to be utilized in domestic and agricultural uses. The integrated physiochemical analysis along with hydrochemical faces analysis, geochemical modeling, ... -
HYDROGEOLOGICAL ATLAS OF QATAR : Geology – Water Resources – Paleoclimate
( Qatar University Press , 2024 , Book)This is the first atlas book for Qatar, which contains information and maps about surface and sub-surface geology, aquifers, and the hydrodynamic changes in underground water storage overtime. When exploring the paleoclimate, ... -
Hydrography Of The Western Part Of The Arabian Gulf
( Qatar University , 1986 , Article)The hydrographic conditions in the western part of the Gulf, from Kuwait to UAE, were studied. Water temperature, salinity, sigma T and water masses were determined for two cruises. The first cruise was carried out from ... -
Hydromagnetic couple-stress nanofluid flow over a moving convective wall: OHAM analysis
( Elsevier Ltd , 2016 , Article)This communication presents the magnetohydrodynamics (MHD) flow of a couple-stress nanofluid over a convective moving wall. The flow dynamics are analyzed in the boundary layer region. Convective cooling phenomenon combined ... -
Hydrophobic guest mediated micellization and demicellization of rationally designed amphiphilic poly(organophosphazene) for efficient drug delivery
( American Scientific Publishers , 2016 , Article)Recently, biocompatible and amphiphilic poly(organophosphazene) (PPZ) has been suggested as a drug delivery carrier since it can be easily modified to achieve desired chemical properties. In this work, we newly designed a ... -
Hydropriming with moringa leaf extract mitigates salt stress in wheat seedlings
( MDPI , 2021 , Article)Salinity is the major constraint that decreases the yield and production of crops. Wheat has a significant value in agricultural food commodities. The germination and growth of wheat seedlings are a big challenge in ... -
Hydrothermal Conversion of Food Waste to Carbonaceous Solid Fuel—A Review of Recent Developments
( Multidisciplinary Digital Publishing Institute (MDPI) , 2022 , Article)This review critically discussed recent developments in hydrothermal carbonization (HTC) of food waste and its valorization to solid fuel. Food waste properties and fundamentals of the HTC reactor were also covered. The ... -
Hydrothermal liquefaction of marine microalgae biomass using co-solvents
( Elsevier B.V. , 2019 , Article)Hydrothermal liquefaction (HTL) of microalgae biomass is a promising conversion technology in which wet biomass is treated under high temperature (280–350 °C) and pressure (5–21 MPa), and the associated water in the wet ...