College of Arts & Sciences: Recent submissions
Now showing items 541-560 of 3643
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Smartphone-based Vehicle Telematics for Naturalistic Driving Studies
( Institute of Electrical and Electronics Engineers Inc. , 2022 , Conference)Motor vehicle collisions (MVCs) are the eighth leading cause of death worldwide. Globally, there are 1.35 million deaths with 50 million injuries annually. It is important to understand and record how people drive and ... -
New Simulation Model for Workload Analysis Addressing Occupational Stress in a Production Company
( Elsevier , 2022 , Conference)In today's world, occupational stress is identified as a major health issue within most organizations. The reason the spotlight has been focused on occupational stress in recent years is that it can have a negative impact ... -
Solving a Bus Routing Problem Arising in Doha
( IEEE Computer Society , 2022 , Conference)The generic variant of the school bus routing problem requires finding a set of routes that cover a predefined set of student pickup locations in order to minimize travel time while satisfying various constraints. In this ... -
Numerical computation of the capacity of generalized condensers
( Elsevier , 2020 , Article)We present a boundary integral method for numerical computation of the capacity of generalized condensers. The presented method applies to a wide variety of generalized condenser geometry including the cases when the plates ... -
Condenser capacity and hyperbolic perimeterImage 1
( Elsevier , 2021 , Article)We study the conformal capacity by using novel computational algorithms based on implementations of the fast multipole method, and analytic techniques. Especially, we apply domain functionals to study the capacities of ... -
Conformal Invariants in Simply Connected Domains
( Springer Link , 2020 , Article)This paper studies the numerical computation of several conformal invariants of simply connected domains in the complex plane including, the hyperbolic distance, the reduced modulus, the harmonic measure, and the modulus ... -
Condenser capacity and hyperbolic diameter
( Elsevier , 2021 , Article)Given a compact connected set E in the unit disk B2, we give a new upper bound for the conformal capacity of the condenser (B2,E) in terms of the hyperbolic diameter t of E. Moreover, for t>0, we construct a set of hyperbolic ... -
Numerical computation of Mityuk's function and radius for circular/radial slit domains
( Elsevier , 2020 , Article)We consider Mityuk's function and radius which have been proposed in [15] as generalizations of the reduced modulus and conformal radius to the cases of multiply connected domains. We present a numerical method to compute ... -
Polycircular domains, numerical conformal mappings, and moduli of quadrilaterals
( Springer Nature , 2022 , Article)We study numerical conformal mappings of planar Jordan domains with boundaries consisting of finitely many circular arcs, also called polycircular domains, and compute the moduli of quadrilaterals for these domains. ... -
Isoperimetric properties of condenser capacity
( Elsevier , 2021 , Article)For compact subsets E of the unit disk D we study the capacity of the condenser (D,E) by means of set functionals defined in terms of hyperbolic geometry. In particular, we study experimentally the case of a hyperbolic ... -
Computation of conformal invariants
( Elsevier , 2020 , Article)We study numerical computation of conformal invariants of domains in the complex plane. In particular, we provide an algorithm for computing the conformal capacity of a condenser. The algorithm applies to a wide variety ... -
Standing stocks and body size of deep-sea macrofauna: Predicting the baseline of 2010 Deepwater Horizon oil spill in the northern Gulf of Mexico
( Elsevier , 2012 , Article)A composite database encompassing 6 benthic surveys from years 1983 to 2003 was constructed to evaluate the distribution of macrofaunal biomass in the deep Gulf of Mexico (GoM) prior to the Deepwater Horizon oil spill. ... -
Characteristics and renewal of zooplankton communities under extreme environmental stresses in the oligotrophic hypersaline Arabian Gulf
( Elsevier , 2022 , Article)Impacts of the exceptionally high temperature and salinity on species composition, abundance, biomass and diversity of zooplankton communities were examined in the central Arabian (Persian) Gulf in late winter and summer ... -
Phytoplankton along the coastal shelf of an oligotrophic hypersaline environment in a semi-enclosed marginal sea: Qatar (Arabian Gulf)
( Elsevier , 2013 , Article)Phytoplankton biomass (chlorophyll a concentration), primary production, abundance, species diversity and species groupings were measured in the coastal waters surrounding Qatar (Arabian Gulf) at 13 stations in February ... -
Seasonal and body size-dependent variability in the bioaccumulation of PAHs and their alkyl homologues in pearl oysters in the central Arabian Gulf
( Elsevier , 2022 , Article)Spatiotemporal concentration patterns for 19 parents and their alkyl homologues were measured in Pinctada radiata from 7 locations in the central Arabian Gulf around Qatar in the winter, spring and summer (2014–2015). The ... -
Microstructure and mechanical behavior of hot extruded aluminum/tin-bismuth composites produced by powder metallurgy
( MDPI AG , 2020 , Article)In this study, Al-BiSn composites were synthesized by a combination of microwave sintering and hot extrusion processes. The structural, morphological, mechanical, and thermal properties were investigated to elucidate the ... -
Conducting polyaniline nanorods doped with aromatic carboxyl chain end functionalized polystyrene
( Elsevier , 2015 , Article)The preparation of new conducting polyaniline (PANI) derivatives with different nanostructures is described. PANI derivatives doped with aromatic carboxyl chain end functionalized polystyrene derivatives of different number ... -
Performance of Pristine versus Magnetized Orange Peels Biochar Adapted to Adsorptive Removal of Daunorubicin: Eco-Structuring, Kinetics and Equilibrium Studies
( Multidisciplinary Digital Publishing Institute (MDPI) , 2023 , Article)Drugs and pharmaceuticals are an emergent class of aquatic contaminants. The existence of these pollutants in aquatic bodies is currently raising escalating concerns because of their negative impact on the ecosystem. This ... -
Competitive adsorptive removal of promazine and promethazine from wastewater using olive tree pruning biochar: operational parameters, kinetics, and equilibrium investigations
( Springer Nature , 2023 , Article)This research aims to remove two phenothiazines, promazine (PRO) and promethazine (PMT), from their individual and binary mixtures using olive tree pruning biochar (BC-OTPR). The impact of individual and combinatory effects ... -
Watermelon rinds as cost-efficient adsorbent for acridine orange: a response surface methodological approach
( Springer Nature , 2023 , Article)In the current investigation, watermelon rinds (WMR) have been utilized as an eco-friendly and cost-efficient adsorbent for acridine orange (AO) from contaminated water samples. Adsorption of AO onto raw (RWM) and thermally ...
