Browsing Academic by Title
Now showing items 17260-17279 of 26317
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Pull-off characterization of FRCM/Concrete interface
( Elsevier Ltd , 2019 , Article)Fabric-reinforced cementitious matrix (FRCM) composites are usually surface-applied for strengthening reinforced concrete (RC) structures. The efficacy of the FRCM strengthening systems is dependent on the FRCM/concrete ... -
Pullulan production from sugar beat molasses
( Qatar University , 1997 , Article)Sugar beet molasses was used as the substrate for the production of pullulan with Aureobasidum pullulans ATCC 42023. In addition biomass, residual sugar and final pH of the culture medium were investigated. In comparing ... -
Pulmonary Fibrosis Progression Prediction Using Image Processing and Machine Learning
( Springer Nature , 2021 , Book chapter)The onset of COVID-19 has focused the attention of the research community on lung diseases and conditions. Idiopathic pulmonary fibrosis (IPF), in which internal scarring of the lung takes place, has gone undetected among ... -
Pulpal blood flow changes and pain scores related to using superelastic 0.018-inch nickel titanium as the first orthodontic alignment archwire: A prospective clinical trial
( SciELO - Scientific Electronic Library Online , 2021 , Article)Background: Optimal orthodontic force results in maximum rate of tooth movement without tissue damage. Even though starting orthodontic treatment with a thicker archwire may shorten treatment duration, the evidence on the ... -
The Pulse of Colour: in Virginia Woolf's 'To the Lighthouse'
( Qatar University , 1979 , Article) -
Pulse versus daily oral Alfacalcidol treatment of secondary hyperparathyroidism in hemodialysis patients: a randomized controlled trial.
( Dove Medical Press , 2018 , Article)Secondary hyperparathyroidism is a common complication of chronic kidney disease and is managed using vitamin D replacement therapy. Very few studies have examined the effectiveness of pulse alfacalcidol therapy in comparison ... -
Pulse Width Modulation of Power Electronic DC-AC Converter
( John Wiley & Sons, Ltd , 2012 , Book chapter) -
Pulse width modulation technique for a three-to-five phase matrix converter with reduced commutations
( Institution of Engineering and Technology , 2016 , Article)Variable-speed multiphase drive systems have become an increasingly important topics compared with conventional three-phase one due to their distinct advantages. This study presents a new pulse width modulation (PWM) ... -
Pure random orthogonal search (PROS): A plain and elegant parameterless algorithm for global optimization
( MDPI AG , 2021 , Article)A new, fast, elegant, and simple stochastic optimization search method is proposed, which exhibits surprisingly good performance and robustness considering its simplicity. We name the algorithm pure random orthogonal search ... -
Purification and biochemical characterization of a novel thermostable protease from the oyster mushroom Pleurotus sajor-caju strain CTM10057 with industrial interest
( BMC , 2019 , Article)Background Proteases are hydrolytic enzymes that catalyze peptide linkage cleavage reactions at the level of proteins and peptides with different degrees of specificity. This group draws the attention of industry. More ... -
Purification and characterization of a new Bacillus thuringiensis bacteriocin active against Listeria monocytogenes, Bacillus cereus and Agrobacterium tumefaciens
( Springer Science , 2011 , Article)This study reports on the identification, characterization and purification of a new bacteriocin, named Bacthuricin F103, from a Bacillus thuringiensis strain BUPM103. Bacthuricin F103 production began in the early exponential ... -
Purification and characterization of an extracellular phenol oxidase from culture filtrates of Pyricularia oryzae
( NRC Research Press , 1996 , Article)Extracellular phenol oxidase activity was characterized and compared in Pyricularia oryzae wild-type and albino cell types to determine if this phenol oxidase was responsible for lack of melanization in the albino culture. ... -
Purification of colloidal oil in water emulsions by cationic adsorbent prepared from recycled polyethylene waste
( Elsevier , 2024 , Article)This study deals with removing crude oil droplets from colloidal oil in water emulsions. The target was the development of efficient adsorbents for the tertiary treatment of industrial-produced water (PW). The novel adsorbent ... -
Purification of emulsified oily polluted waters with modified melamine foams
( Elsevier , 2023 , Article)Oil and gas industry operations produce tremendous amounts of wastewater (produced water; PW). Tertiary treatment of the PW in the final treatment stage is challenging due to the presence of colloids with sizes < 500 nm ... -
PURIFICATION OF PRODUCED WATER BY CUTTLEFISH BONE ADSORBENTS
(2024 , Master Thesis)The cuttlefish bone powder (CFB) which is mostly composed of calcium carbonate was prepared, characterized, and modified to use it for the purification of emulsified oil/water mixtures from produced water. The focus was ... -
Purpose of the book and editorial perspectives
( Springer International Publishing , 2015 , Book chapter)Engineering and engineering education play an essential role in the Middle East. Global debates regarding roles of engineering and required transformations in engineering education have been extensive during the past few ... -
Pursuing Frugal Innovation for Sustainability at the Grassroots Level
( Cambridge University Press , 2021 , Article)Firms are often criticized for their reluctance to embrace sustainability in their business strategies. Frugal innovation is a recent concept that represents a new way for firms to serve underserved customers in developing ... -
The push for practical legal skills education in Qatar: Results from an externship program
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Article)For decades, educators across the world have been advocating for educational reform that would increase the number of practical skills courses included in traditional legal education. In 2011, Qatar University College ... -
PV power prediction in Qatar based on machine learning approach
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)PV output power is highly sensitive to many environmental parameters, hence, power available from plants based on this technology will be affected, especially in harsh environments such that of Gulf countries. In order to ... -
PV/Battery Grid Integration Using a Modular Multilevel Isolated SEPIC-Based Converter
( MDPI , 2022 , Article)Photovoltaic (PV) plants can be built rapidly when compared with other conventional electrical plants; hence, they are a competent candidate for supplying the electricity grid. The output power of the PV modules can be ...
