Browsing Faculty Contributions by Title
Now showing items 7209-7228 of 18059
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Finite Element Analysis of the Dynamics of Power-Law Fluid around an Obstacle in a Channel
( Hindawi Limited , 2022 , Article)Control of uid forces is an emerging area of research with numerous engineering applications. e uneven wake behind an obstacle causes undesirable structural oscillations, which can lead to fatigue or structural failure. ... -
Finite Element Analysis of the Mechanism of Traumatic Aortic Rupture (TAR)
( Hindawi Limited , 2020 , Article)As many as 80% of patients with TAR die on the spot while out of those reaching a hospital, 30% would die within 24 hours. Thus, it is essential to better understand and prevent this injury. The exact mechanics of TAR are ... -
Finite element based post-buckling analysis of refined graphene oxide reinforced concrete beams with geometrical imperfection
( Techno Press , 2020 , Article)The present paper researches post-buckling behaviors of geometrically imperfect concrete beam resting on elastic foundation reinforced with graphene oxide powders (GOPs) based on finite element method (FEM). Distribution ... -
Finite element method based determination of magnetic loading of three-phase five-limb transformer with impact of DC offset
( Springer Verlag , 2017 , Book chapter)In this article, modelling mechanism based on finite element method (FEM) to understand the impact of DC currents on the magnetic loading of the three-phase five-limb transformer IS articulated. This paper provides detailed ... -
Finite element modelling and characterization of 3D cellular microstructures for the design of a cementless biomimetic porous hip stem
( Elsevier Ltd , 2018 , Article)Titanium porous cellular microstructures are commonly used in bone mimetic implants. The orientations of the internal strut architectures of these microstructures affect the mechanical performance under various loads; ... -
Finite element modelling of shear strengthened reinforced concrete beams
( International Institute for FRP in Construction (IIFC) , 2013 , Conference Paper)This research aims at creating precise finite element models for FRP shear strengthened concrete beams. It is inspired by the fact that the determination of the structural behaviour of the shear strengthened beams requires ... -
Finite element study of functionally graded porous femoral stems incorporating body-centered cubic structure
( Blackwell Publishing Inc. , 2019 , Article)The mismatch between stiffness of the femoral dense stem and host bone causes complications to patients, such as aseptic loosening and bone resorption. Three‐dimensional finite‐element models of homogeneous porous (HGP) ... -
Finite Frequency Fault Diagnosis for Heterogeneous Multi-agent LPV Systems
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)This paper addresses the problem of distributed fault detection and isolation (FDI) observer design in finite frequency domain for a class of heterogeneous multi-agent linear parameter-varying (LPV) systems. For this ... -
Finite set model predictive current control with reduced and constant common mode voltage for a five-phase voltage source inverter
( Institute of Electrical and Electronics Engineers Inc. , 2014 , Conference Paper)Multiphase drives are now becoming serious competitor to traditional three-phase drives due to reasons of better fault tolerant property and reduced per-phase converter rating that are especially suited to high power drives ... -
Finite-Control-Set Model Predictive Control for Grid-Connected Packed-U-Cells Multilevel Inverter
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Article)This paper presents a finite-control-set model predictive control (FCS-MPC) for grid-tied packed U cells (PUC) multilevel inverter (MLI). The system under study consists of a single-phase 3-cells PUC inverter connected to ... -
Finite-Element Analysis of Cantilever Slab Deflections with ANSYS SOLID65 3D Reinforced-Concrete Element with Cracking and Crushing Capabilities
( American Society of Civil Engineers (ASCE) , 2019 , Article)This paper presents a finite-element (FE) study conducted to investigate the deflections of newly constructed cantilevered slabs built for a medical facility expansion. From the beginning of the construction stage, the ... -
Finite-sample size multiple antennas spectrum sensing
(2012 , Conference Paper)In this paper, we consider the problem of multiple antenna spectrum sensing in Cognitive Radios (CR) by exploiting the prior information about unknown parameters. Specifically, we consider a blind spectrum sensing problem ... -
Finite-Time Stability under Denial of Service
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)Finite-time stability (FTS) of networked control systems under denial-of-service (DoS) attacks are investigated in this article, where the communication between the plant and the controller is compromised at some time ... -
Fintech and contactless payment: Help or hindrance? The role of invasion of privacy and information disclosure
( Emerald Publishing , 2024 , Article)Purpose: There is always a need to discover how a paradox between a customer's desire for a more personalized experience and their privacy and security concerns would shape their intention to continue using contactless ... -
First and Last Triggering Event Approaches for Replacement with Minimal Repairs
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Article)To make effective use of a running system, this paper proposes that, when replacement times could be scheduled at a planned time T of operation, and at a number N of minimal repairs, the newly proposed approach of whichever ... -
First down converter multilayers integration in an industrial Si solar cell process
( John Wiley and Sons Ltd , 2019 , Article)Down converter SiNx:Yb3+/SiNx:Tb3+ multilayers are deposited by reactive magnetron cosputtering with the objective of optimizing the interaction distance between Tb3+ and Yb3+ ions to favor a better light management in Si ... -
First genotoxicity assessment of marine environment in Qatar using the local Pearl oyster Pinctada radiata
( Elsevier , 2017 , Article)The Arabian Gulf countries’ marine environment has been subjected to increasing industrial development and anthropogenic pressure, leading to the growing introduction of contaminants into the marine environment, with a ... -
First Hybrid 1gbps/0.1 Gbps Free-space Optical /rf System Deployment And Testing In The State Of Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)I.BACKGROUND & OBJECTIVES Owing to its high-bandwidth, robustness to EMI, and operation in unregulated spectrum, free-space optical communication (FSO) is uniquely qualified as a promising alternative or complementary ... -
First Impact Assessment of Genotoxic Components in the Qatari Marine Environment
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)The Arabian Gulf is a semi-enclosed sea with very high evaporation and low discharge rates resulting in extreme saline and thermal conditions. Additionally the system is characterized by a weak hydrodynamic flushing resulting ... -
First jellyfish records for Qatar and further notes on Scyphomedusae species from the Arabian Gulf (Cnidaria, Scyphozoa)
( Cambridge University Press , 2023 , Article)This study focused on a jellyfish monitoring and sampling programme along the eastern Qatar seawaters and reports the first jellyfish records for the Qatar pelagic ecosystem and the occurrence of three scyphozoans: the ...