Browsing Academic by Title
Now showing items 12461-12480 of 27114
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Invariant characterization of scalar third-order ODEs that admit the maximal point symmetry Lie algebra
( John Wiley and Sons Ltd , 2018 , Article)The Cartan equivalence method is used to deduce an invariant characterization of the scalar third-order ordinary differential equation u"' = f(x, u, u', u"), which admits the maximal 7-dimensional point symmetry Lie algebra. ... -
Invariant characterization of third-order ordinary differential equations u''=f(x,u,u',u) with five-dimensional point symmetry group
( Elsevier B.V. , 2019 , Article)The Cartan equivalence method is applied to provide an invariant characterization of the third-order ordinary differential equation u''=f(x,u,u',u') which admits a five-dimensional point symmetry Lie algebra. The invariant ... -
Invariant solutions of the Wave equation on static spherically symmetric spacetimes admitting G7 isometry algebra
( MDPIAG , 2018 , Article)Algorithms to construct the optimal systems of dimension of at most three of Lie algebras are given. These algorithms are applied to determine the Lie algebra structure and optimal systems of the symmetries of the wave ... -
Invariants of third‐order ordinary differential equations y′′′=f(x,y,y′,y′′) via point transformations
( John Wiley and Sons Ltd , 2016 , Article)A new systematic method to find the relative invariant differentiation operators is developed. We incorporate this new approach with Lie's infinitesimal method to study the general class y′′′ = f(x, y, y′, y′′) under general ... -
Inventory models for joint pricing and greening effort decisions with discounts
( Emerald Group Publishing Ltd. , 2018 , Article)Purpose: This paper aims to develop efficient decision support tools for a firm?s environment protection by using greening effort while yet improving profitability by utilizing pricing and inventory decisions with discount ... -
Inverse Adaptive Cluster Sampling with Unequal Selection Probabilities: Case Studies on Crab Holes and Arsenic Pollution
( Wiley Publishing Asia Pty Ltd. , 2015 , Article)Adaptive cluster sampling is an efficient method of estimating the parameters of rare and clustered populations. The method mimics how biologists would like to collect data in the field by targeting survey effort to localised ... -
The Inverted Yield Curve and the Components of GDP
( Qatar University , 2014 , Article)When 3-month Treasury rates are greater than 10 -year Treasury rates an inverted yield curve occurs. When this state is reached some argue that a recession is on the horizon, typically 6 months to a year down the road. ... -
Inverter-based versus synchronous-based distributed generation; Fault current limitation and protection issues
( IEEE , 2010 , Conference Paper)The contribution of distributed generation (DG) to network fault levels depends heavily on the technology employed. In the case of directly connected rotating machines the fault behavior is well established; with synchronous ... -
Investigating 3D holoscopic visual content upsampling using super-resolution for cultural heritage digitization
( Elsevier B.V. , 2019 , Article)Through this paper, we aim at investigating the impact of using deep learning-based technologies such as super-resolution on Holoscopic 3D (H3D) images. Holoscopic 3D imaging is a technology that aims at providing ... -
Investigating a university library building evacuation in Pakistan during a semi-announced fire drill
( John Wiley & Sons , 2022 , Article)Evacuation models represent one of the main tools used to assess building fire safety. Existing evacuation models are based on data from evacuation drills in western and developed countries, while there is a need for data ... -
Investigating adaptability of stadium precincts post Qatar 2022 world cup: toward an adaptive strategy through public-private partnership (ppp)
(2016 , Master Thesis)Mega Sporting Events have become a way of transforming cities around the world. However, the sustainability of these large-scale transformations is questioned. This thesis aims to investigate the adaptability of stadium ... -
Investigating algal CO2 capture through screening of Qatari desert microalgae & cyanobacteria strains
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)CO2 fixation by phototrophic microalgae has been addressed as a possible global carbon emissions reducer, whilst simultaneously producing useful products. Especially in Qatar, the prospect of using microalgae for CO2 ... -
Investigating chlorophyll and nitrogen levels of mangroves at Al-Khor, Qatar: an integrated chemical analysis and remote sensing approach. Environmental Monitoring and Assessment
( Springer Verlag , 2016 , Article)Mangroves are unique ecosystems that dominate tropical and subtropical coastlines around the world. They provide shelter and nursery to wide variety of species such as fish and birds. Around 73 species of mangroves were ... -
Investigating clinicians' determinants of antimicrobial prescribing behaviour using the Theoretical Domains Framework
( Elsevier , 2022 , Article)AimTo identify and quantify potential determinants of antimicrobial prescribing behaviour, using the Theoretical Domains Framework (TDF). MethodsA cross-sectional survey involving doctors (∼4000) and pharmacists (∼400) ... -
Investigating clinicians' determinants of antimicrobial prescribing behaviour using the Theoretical Domains Framework
( W.B. Saunders Ltd , 2022 , Article)Aim: To identify and quantify potential determinants of antimicrobial prescribing behaviour, using the Theoretical Domains Framework (TDF). Methods: A cross-sectional survey involving doctors (?4000) and pharmacists (?400) ... -
Investigating critical obstacles to entrepreneurship in emerging economies: A comparative study between males and females in Qatar
( Allied Business Academies , 2019 , Article)Qatar's Entrepreneurship sector faces major obstacles that impede its growth prospects. While Qatar has started to focus more on improvement of the entrepreneurial environment through semi-governmental agencies and creation ... -
Investigating critical thinking skills practices in Qatari Elementary Schools
( Common Ground Publishing , 2009 , Article)The purpose of this study was to examine how government and independent elementary school teachers in Qatar compare on promoting students' critical thinking skills in the classroom. A total of 441 participants completed a ... -
Investigating Determinants of Student Satisfaction in the First Year of College in a Public University in the State of Qatar
( Hindawi Limited , 2018 , Article)Purpose. A first-year student's life is a web of interrelated academic and social experiences. Most universities have rigorous processes to achieve excellence or reach high-quality standards, with "Student Satisfaction" ... -
INVESTIGATING FATIGUE LIFE IN BOLTED FLANGE CONNECTION IN WIND TURBINE TOWERS
(2023 , Master Thesis)A comprehensive assessment of fatigue was performed on an L-flanged bolted connection under four different wind speeds. The wind turbines were subjected to average wind speeds of 5, 10, 15, and 20 m/s. The primary objective ... -
Investigating head injury and dental trauma related to shopping carts amongst children under the age of 12 years old: A meta-analysis of observational studies
( Hamad bin Khalifa University Press (HBKU Press) , 2022 , Article)Background: Understanding the epidemiology of traumatic head injuries (THI) is essential to shape public health (PH) policies, implement prevention strategies, and justify the allocation of resources towards public safety, ...
