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السجلات المعروضة 14649 -- 14668 من 26376
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Ni-P-ZrC nanocomposite coating with enhanced corrosion resistance and mechanical properties.
( Qatar University Press , 2021 , Poster)Corrosion is considered to be greatest challenge for many industries. Nickel-based metallic coatings are emerging as one of the most suitable solution considering various aspects of operating conditions. The current ... -
Nickel oxide carbon nanofiber composite for electrochemical oxidation of methanol
( Electrochemical Society Inc. , 2014 , Conference Paper)Electrospun fibers of a mixture of polyvinylpyrrolidone (PVP), polyaniline (PANI) and graphene were stabilized for 2 h at 200 °C and then carbonized at 800 °C for 5 h. Composites were prepared by depositing Ni(OH)2 on the ... -
Nickel Toxicity Interferes with NO3−/NH4+ Uptake and Nitrogen Metabolic Enzyme Activity in Rice (Oryza sativa L.)
( MDPI , 2022 , Article)The excessive use of nickel (Ni) in manufacturing and various industries has made Ni a serious pollutant in the past few decades. As a micronutrient, Ni is crucial for plant growth at low concentrations, but at higher ... -
Nickel/Cobalt nanoparticles for electrochemical production of hydrogen
( Elsevier Ltd , 2021 , Article)The electrolytic production of hydrogen (POH) from alkaline water electrolysis is at the forefront of technology for alternative energy sources of the future. The present work evaluates the improvement of electro-catalytic ... -
Nicolau syndrome following Intramuscular Diclofenac Injection: a case report and review of the literature.
( Oxford University Press , 2023 , Article)Nicolau syndrome (NS), also referred as embolia cutis medicamentosa and livedo-like dermatitis, is an uncommon complication followed by drugs administered intramuscularly, intraarticularly or subcutaneously. In this case ... -
Nicotinamide-based supergelator self-assembling via asymmetric hydrogen bonding NH OC and H Br pattern for reusable, moldable and self-healable nontoxic fuel gels
( Academic Press Inc. , 2021 , Article)Hypothesis Development of highly efficient low-molecular weight gelators (LMWGs) for safe energy storage materials is of great demand. Energy storage materials as fuel gels are often achieved by construction of hybrid ... -
Nicotinamide-based supergelator self-assembling via asymmetric hydrogen bonding NH⋯OC and H⋯Br− pattern for reusable, moldable and self-healable nontoxic fuel gels
( Elsevier , 2021 , Article)Hypothesis Development of highly efficient low-molecular weight gelators (LMWGs) for safe energy storage materials is of great demand. Energy storage materials as fuel gels are often achieved by construction of hybrid ... -
NICU Medication Errors: Describing the Cause and Nature of Medication Errors in a NICU in Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Introduction: A medication error can be defined as "any error occurring in the medication use process" and focuses on problems with the delivery of medication to a patient [1]. Medication errors are a complex and ongoing ... -
NiFe2O4/poly(ethylene glycol)/lipid-polymer hybrid nanoparticles for anti-cancer drug delivery
( Royal Society of Chemistry , 2020 , Article)The present study reports the fabrication of hybrid nanoparticles consisting of nickel ferrite (NFO) for anti cancer drug delivery. The hybrid system was formulated from poly(vinyl alcohol)/stearic acid with PEG containing ... -
Night and Early Morning Flying Insects in a Residence Backyard in Doha City, Qatar
( Qatar University , 2006 , Article)Night and early morning flying insects in Doha were recorded daily, for a complete year, using a light-water trap. Two peaks of insect numbers occurred in April-May and September-October periods respectively. The lowest ... -
Night Distribution Of Certain Species Of Coleoptera As Indicated By Captures In A Light Trap At Quena
( Qatar University , 1984 , Article)The night distribution of nineteen species over a whole trapping period can be considered under the following headings: a. Early flyers b. Species with two peaks of activity. The effect of light of low intensity, temperature ... -
Nine-level asymmetrical single phase multilevel inverter topology with low switching frequency and reduce device counts
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)This paper presents a new asymmetrical single-phase multilevel inverter topology capable of producing nine-level output voltage with reduce device counts. In order to obtain the desired output voltage, dc sources are ... -
Nine-Phase Six-Terminal Induction Machine Modeling Using Vector Space Decomposition
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)The nine-phase six-terminal induction machine (IM) has been recently proposed as a promising contender to the conventional asymmetrical six-phase type in terms of torque density, stator winding simplicity, and fault-tolerant ... -
Nine-phase six-terminal pole-amplitude modulated induction motor for electric vehicle applications
( Institution of Engineering and Technology , 2019 , Article)In electric drive applications that are based on high-speed induction motors (IMs) with an extended speed range, stator winding pole-changing is a possible technique to avoid oversizing the driving motor. The electronic ... -
Nip/Zno-Doped C3n4 Nanocapsules: A New Highly Corrosion-Resistant Electroless-Plated Coating with Superior Mechanical and Antibacterial Properties
(2021 , Master Thesis)Carbon nitride (C3N4) nanomaterials has superior mechanical, thermal and tribological properties, which make them attractive for various applications including corrosion resistant coatings. In this research, newly ... -
Nitrate removal from water using UV-M/S2O42- advanced reduction process
( Springer , 2013 , Article)In this work, a new process called advanced reduction process (ARP) was used for nitrate removal from water. This ARP process combines sodium dithionite as reducing agent with ultraviolet irradiation using medium pressure ... -
Nitric oxide releasing chitosan-poly (vinyl alcohol) hydrogel promotes angiogenesis in chick embryo model
( Elsevier B.V. , 2019 , Article)The lack of angiogenic activity is one of the serious complications of chronic wounds associated with delayed wound closure, chronic ulceration, and subsequent limb amputation. Multiple lines of evidence suggest that nitric ... -
Nitric Oxide Releasing Hydrogel Nanoparticles Decreases Epithelial Cell Injuries Associated With Airway Reopening
( Qatar University Press , 2021 , Poster)Introduction: Acute respiratory distress syndrome (ARDS) is an acute inflammatory lung condition. It is characterized by disruption of gas exchange inside the alveoli, accumulation of protein edema, and an increase in lung ... -
Nitric Oxide Releasing Hydrogel Nanoparticles Decreases Epithelial Cell Injuries Associated With Airway Reopening.
( Frontiers , 2021 , Article)Acute respiratory distress syndrome (ARDS) is an acute inflammatory lung condition. It is characterized by disruption of gas exchange inside the alveoli, accumulation of protein edema, and an increase in lung stiffness. ... -
Nitric oxide-releasing biomaterials for promoting wound healing in impaired diabetic wounds: State of the art and recent trends
( Elsevier Masson s.r.l. , 2022 , Article)Impaired diabetic wounds are serious pathophysiological complications associated with persistent microbial infections including failure in the closure of wounds, and the cause of a high frequency of lower limb amputations. ...
