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Now showing items 20118-20137 of 53179
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Phase II Non-parametric and Semi-parametric Profile Monitoring
(2021 , Master Thesis)The emergence of new technologies, as well as the availability of large amounts of information related to quality measurements, have shed the light to a new type of response characteristic called profile. Profiles are ... -
Phase locked loop with fast tracking over wide stability range under grid faults
( Institute of Electrical and Electronics Engineers Inc. , 2014 , Conference Paper)This paper introduces a PLL characterized by fast dynamics, wide stability range and minimal deviations. The proposed PLL is based on a frequency adaptive filtering stage to minimize the frequency and phase deviations under ... -
Phase noise mitigation in OFDMA uplink
( IEEE , 2014 , Conference Paper)This paper addresses the problem of the phase noise induced spectral spread in an OFDMA uplink scenario. Accompanied with power differences between the users at the receiver in a multiuser case, the phase noise induced ... -
Phase Reconfiguring Technique for Enhancing the Modulation Index of Multilevel Inverter Fed Nine-Phase im Drive
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)In this article, a multilevel inverter (MLI) scheme is proposed for four-pole (4-pole), nine-phase (9-phase) induction motor (IM) drives with improved dc bus utilization as well as reduced device count. The proposed MLI ... -
Phase, microstructure and tensile strength of Al–Al2O3–C hybrid metal matrix composites
( SAGE Publications Ltd , 2020 , Article)The aim of the present study is to investigate the effect of alumina (Al2O3)–carbon (C) reinforcement on the properties of aluminium matrix. Aluminium matrix reinforced with Al2O3–carbon (2.5, 5, 7.5 and 10 wt.%) in equal ... -
Phase, microstructure, and wear behavior of Al2O3-reinforced Fe-Si alloy-based metal matrix nanocomposites
( SAGE Publications Ltd , 2020 , Article)In the present work, phase, microstructure, and wear properties of Al2O3-reinforced Fe–Si alloy-based metal matrix nanocomposites have been studied. Composites using 2 wt.% and 5 wt.% of Si and rest Fe powder mix were ... -
Phase-I monitoring of high-dimensional covariance matrix using an adaptive thresholding LASSO rule
( Elsevier , 2020 , Article)High-dimensional variability monitoring and diagnosing is of great prominence for the quality improvement and cost reduction. Most of the existing control charts are mainly based on the assumption that the in-control ... -
Phase-space matching between bent Laue and flat Bragg crystals
( International Union of Crystallography , 2019 , Article)Through phase-space analysis of Dumond diagrams for a flat Bragg crystal, a single bent Laue crystal and a monochromator consisting of double-bent Laue crystals, this work shows that it is possible to match the flat Bragg ... -
Phenethyisoquinoline alkaloids from the leaves of Androcymbium palaestinum
( Elsevier , 2020 , Article)Thirteen compounds were isolated from the methanolic extract of the leaves of Androcymbium palaestinum Baker (Colchicaceae). Of these, three were new, two were new natural products, and eight were known. The new isolated ... -
Phenol degradation by powdered metal ion modified titanium dioxide photocatalysts
(2012 , Article)Conventional water purification and disinfection generally involve potentially hazardous substances, some of which known to be carcinogenic in nature. Titanium dioxide photocatalytic processes provide an effective route ... -
Phenolic contents-based assessment of therapeutic potential of Syzygium cumini leaves extract
( Public Library of Science , 2019 , Article)Syzygium cumini (S. cumini) is an evergreen tropical plant that is well recognized for its therapeutic potential of common diseases. In this study, the therapeutic potential and biomedical application of S. cumini are ... -
The phenomenon of domestic servants in the State of Qatar
( Association of American Geographers , 2015 , Conference Paper)Of new phenomena that emerged in the State of Qatar, and on a large scale in the post-oil era (after 1950) is domestic servant's phenomenon. Historically, the phenomenon was presented in the pre-oil and limited to the homes ... -
Phenotaxis: Localization of The Source of Phenomena Using Mobile Searchers
(2024 , Master Thesis)Over the years, the use of robotic searchers in times of disaster and dangerous incidents, such as toxic gas leakage, has become of higher significance. Using robot searchers instead of humans or animals in such dangerous ... -
Phenotypic switching of vascular smooth muscle cells in atherosclerosis, hypertension, and aortic dissection
( Wiley-Blackwell , 2024 , Article)Vascular smooth muscle cells (VSMCs) play a critical role in regulating vasotone, and their phenotypic plasticity is a key contributor to the pathogenesis of various vascular diseases. Two main VSMC phenotypes have been ... -
Phenylalanine derivatives with modulating effects on human α1-glycine receptors and anticonvulsant activity in strychnine-induced seizure model in male adult rats
( Elsevier B.V. , 2017 , Article)The critical role of α1-glycine receptor (α1-GLYRs) in pathological conditions such as epilepsy is well known. In the present study, structure-activity relations for a series of phenylalanine derivatives carrying selected ... -
Philistine Doomsday and the Vasa Mortis of Solomon and Saturn II
( Springer Netherlands , 2016 , Article)This paper reviews and assesses past scholarship on the so-called vasa mortis riddle of the Old English poem Solomon and Saturn II (lines 75-103) before proposing its own solution. It examines the trajectory of the scholarly ... -
Philosophy of Higher Education within the hegemony of the Labor Market
( Qatar University , 2020 , Video) -
Philosophy of science in the Quran- analysing the diverse approaches on how science can be read in Quran
( Qatar University Young Scientists Center - Qatar University , 2024 , Conference Paper)Describing the scientific findings in Quran is one of the popularised task among all over the Muslims of the world. This come out of the comparison between Quran and science. Quran is not a book of science, but it contains ... -
Philosophy, Theories, Models, and Strategies in Pharmacy Education: An Overview
( Elsevier , 2018 , Book chapter)Pharmacy education has a very important role in determining the quality of pharmacists who will work for society in the future. There is a great need for revolution and innovation in pharmacy education and training. Pharmacy ... -
Phloretin attenuates STAT-3 activity and overcomes sorafenib resistance targeting SHP-1-mediated inhibition of STAT3 and Akt/VEGFR2 pathway in hepatocellular carcinoma
( BioMed Central Ltd. , 2019 , Article)Background: Hepatocellular carcinoma (HCC) is the most common primary liver malignancy. Phloretin (PH) possesses anticancer, antitumor, and hepatoprotective effects, however, the effects and potential mechanisms of phloretin ...