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السجلات المعروضة 4194 -- 4213 من 25940
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Comfort temperature and occupant adaptive behavior in offices in Qatar during summer
( Elsevier Ltd , 2017 , Article)Qatar tops the world in per capita CO2 emissions and per capita total primary energy supply. Adaptive comfort standards and thermal comfort field survey data are not available for Qatar. We conducted a thermal comfort ... -
Comfort-based fuzzy control optimization for energy conservation in HVAC systems
( Elsevier Ltd , 2014 , Article)The work presented herein illustrates the use of computational intelligence and optimization approaches for improving the fuzzy controller's performance in architectural heating, ventilation, and air conditioning system ... -
Comment on a review of methods to assess publication and other reporting biases in meta-analysis
( John Wiley and Sons Ltd , 2022 , Article)We read with interest the well-written review on the assessment of publication and other reporting biases in meta-analysis by Page et al.1 in which both funnel plots and tests for its asymmetry were described. The decision ... -
Comment on the manuscript “Histological subtype is associated with PD-L1 expression and CD8+ T-cell infiltrates in triple-negative breast carcinoma” by Salisbury et al. (Ann Diagn Pathol 2022; 57: 151901, https://doi.org/10.1016/j.anndiagpath.2022.151901)
( Elsevier , 2022 , Other)I read with great interest a recent paper written by Salisbury et al. published in the April 2022 issue of the Annals of Diagnostic Pathology [1]. In their study, the authors explored a small cohort of triple-negative ... -
Commentary: Potentially inappropriate medication among older patients with diabetic kidney disease
( Frontiers Media SA , 2023 , Other)Wang et al. (2020)’s recent report on the burden and morbidity consequences of potentially inappropriate medications (PIMs) in a select cohort of type 2 diabetic mellitus (T2DM) patients was both instructive and an “inflection ... -
Comments on Transnational Generations
( Gulf Studies center - College of Arts & Sciences - Qatar University , 2020 , Conference Paper) -
Comments on: "Fault detection for continuous-time switched systems under asynchronous switching"
( John Wiley & Sons, Ltd. , 2015 , Article)In this note, a defect occurred in Theorem 1 in the study Du et al. (Int. J. Robust Nonlinear Control 2013; doi: 10.1002/rnc.2961) is addressed. Additionally, the correction of the theorem is presented. -
The Commercial Value of Fish at Fasht Ad-Dibal and its Associated Biota in the Qatari Waters, Arabian Gulf
( Qatar University , 2007 , Article)The present study is an attempt to study the fish diversity of Fasht Ad-Dibal in the north-western coast of Qatar. Thirty three species belonging to 25 families were caught using gill nets, gargoors (metal traps) and hand ... -
Common and Rare Genetic Variants Associated With Alzheimer's Disease
( WILEY PERIODICALS, INC. , 2016 , Article)Alzheimer's disease (AD) is one of the most devastating disorders. Despite the continuing increase of its incidence among aging populations, no effective cure has been developed mainly due to difficulties in early diagnosis ... -
Common Fixed Point Results of Set Valued Maps for Aφ-Contraction and Generalized ϕ-Type Weak Contraction
( MDPI AG , 2019 , Article)The solutions for many real life problems may be obtained by interpreting the given problem mathematically in the form f(x)=x . One such example is that of the famous Borsuk–Ulam theorem in which, using some fixed point ... -
Common fixed point theorems for two pairs of self-mappings in partial metric space using C-class functions on (ψ, ϕ)-contractive condition
( International Scientific Research Publications , 2018 , Article)The purpose of this paper is to introduce common fixed point results for two pairs of weakly compatible self-mappings in partial metric space using C-class functions on (ψ, ϕ)-contractive condition. Example and application ... -
Common fixed Points for Multimaps in Menger Spaces
( Qatar University , 2007 , Article)The aim of this paper is to obtain a common fixed point theorem for multivalued mappings in Menger spaces. Of course this is a new result in Menger spaces. 2000 Mathematics Subject Classification: 47H10, 54H25. -
Common indications for Referral to the Healthcare system for COVID-19 recovered patients versus Qatar Biobank study population: A descriptive analysis
( Mattioli1885 , 2022 , Article)Background and Aim of the Work: Qatar Biobank (QBB) is actively acquiring data on the range of short-and long-term health impacts associated with COVID-19. This is performed through the COVID-19 biorepository National ... -
Common Mode Voltage Reduction in a Single-Phase Quasi Z-Source Inverter for Transformerless Grid-Connected Solar PV Applications
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)The quasi-Z-source inverter (qZSI) is becoming a popular inverter topology that can buck or boost input voltage without a dc-dc converter and hence can be used in transformerless configuration. Due to its single-stage ... -
Common mode voltage reduction in a three-to-five phase matrix converter fed induction motor drive
( Institution of Engineering and Technology , 2017 , Article)Multiphase power converters generate common mode voltage due to switching actions of the power switches. The resulting common mode current in multiphase motor drives flow through the bearing and shaft. Continuous flow of ... -
Common mode voltage reduction in open-end multi-phase load system fed through matrix converter
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)In this paper reduction of common mode voltage (CMV) for five phases open end load system is discussed. Open end load is fed through three-to-five phases dual matrix converters (DMC). Space vector pulse width modulation ... -
Common mode voltage reduction technique in a three-to-three phase indirect matrix converter
( Institution of Engineering and Technology , 2018 , Article)In this study, common mode voltage (CMV) reduction using space vector pulse-width modulation (SVPWM) technique is proposed for a three-phase induction motor drive fed by a three-to-three phase indirect matrix converter ... -
Common-mode voltage reduction for space vector modulated three- to five-phase indirect matrix converter
( Elsevier Ltd , 2018 , Article)All available Pulse Width Modulation (PWM) techniques employed to different Matrix Converter (MC) topologies generally generate switching Common-Mode Voltage (CMV), which introduces numerous operational concerns in electric ... -
Common-mode voltage reduction of matrix converter fed seven-phase induction machine
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)This paper introduces space vector modulation (SVM) schemes for reducing the common mode voltage (CMV) of a direct three-to seven-phase matrix converter (3?7 MC) fed a seven-phase induction motor. The proposed techniques ... -
Commonly used clinical criteria following ACL reconstruction including time from surgery and isokinetic limb symmetry thresholds are not associated with between-limb loading deficits during running
( Elsevier , 2021 , Article)ObjectivesWe included objective measures of gait and functional assessments to examine their associations in athletes who had recently commenced running after ACL reconstruction. DesignCross-sectional. SettingSports medicine. ...
