Browsing Qatar University Institutional Repository by Title
Now showing items 14699-14718 of 27188
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Nonexistence results for the Cauchy problem for some fractional nonlinear systems of thermo-elasticity type
( Wiley-VCH Verlag , 2016 , Article)We study the nonexistence of global solutions to the Cauchy problem for systems of parabolic-hyperbolic or hyperbolic thermo-elasticity equations posed in RN. For power nonlinearities, we present threshold critical exponents ... -
Nonexplosive Deconstruction of Steel Girder Highway Bridges
( American Society of Civil Engineers (ASCE) , 2017 , Article)While the transportation system of the United States rapidly ages and expands, there is increasing demand for the demolition, replacement, modification, or rehabilitation of existing bridges; all of these actions require ... -
Nonheme Fe(IV) Oxo Complexes of Two New Pentadentate Ligands and Their Hydrogen-Atom and Oxygen-Atom Transfer Reactions
( American Chemical Society (ACS) , 2015 , Article)Two new pentadentate {N5} donor ligands based on the N4Py (N4Py = N,N-bis(2-pyridylmethyl)-N-bis(2-pyridyl)methylamine) framework have been synthesized, viz. [N-(1-methyl-2-benzimidazolyl)methyl-N-(2-pyridyl)methyl-N-(bi ... -
Nonisolated Symmetrical Interleaved Multilevel Boost Converter with Reduction in Voltage Rating of Capacitors for High-Voltage Microgrid Applications
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)This article proposed a nonisolated symmetrical interleaved multilevel boost converter for high-voltage microgrid applications. The proposed converter configuration is derived from the integration of a voltage multiplier ... -
Nonlinear Adaptive Control Of A Permanent Magnet Stepper Motor
( Qatar University , 1994 , Article)This paper considers adaptive position control of a permanent magnet (PM) stepper motor using exact linearization via static state-feedback. Physical outputs are chosen in such a way that the resulting closed-loop system ... -
Nonlinear analysis of shell structures using image processing and machine learning
( Elsevier , 2023 , Article)In this paper, we propose a novel approach to solve nonlinear stress analysis problems in shell structures using an image processing technique. In general, such problems in design optimisation or virtual reality applications ... -
NonLinear Control of Electrical Machines Using NonLinear Feedback
( John Wiley & Sons, Ltd , 2012 , Book chapter) -
Nonlinear direct inverse method: A shortcut method for simultaneous calibration and isotherm determination
(2013 , Article)This work addresses a way to combine isotherm determination and nonlinear calibration. In this method, like the classical inverse method, experimental elution profiles are compared with the results of a detailed model that ... -
Nonlinear dynamic characteristics of nonlocal multi-phase magneto-electro-elastic nano-tubes with different piezoelectric constituents
( Springer , 2020 , Article)Analysis of exact nonlinear dynamic behavior of multi-phase magneto-electro-elastic (MEE) nanoshells has been presented in this paper using Jacobi elliptic functions. Multi-phase MEE material is constructed form piezoelectric ... -
Nonlinear Dynamics Tools for Offline Signature Verification Using One-class Gaussian Process
( World Scientific Publishing Co. Pte Ltd , 2019 , Article)One of the major problems in biometrics and in document forensics is the offline mode of signature verification. This study aims to present a novel approach of verifying an individual's signature through offline images of ... -
Nonlinear fault diagnosis of jet engines by using a multiple model-based approach
( ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition, GT2011 , 2011 , Conference Paper)In this paper, a nonlinear fault detection and isolation (FDI) scheme that is based on the concept of multiple model (MM) approach is proposed for jet engines. A modular and a hierarchical architecture is proposed which ... -
Nonlinear fault diagnosis of jet engines by using a multiple model-based approach
( ASME , 2012 , Article)In this paper, a nonlinear fault detection and isolation (FDI) scheme that is based on the concept of multiple model approach is proposed for jet engines. A modular and a hierarchical architecture is proposed which enables ... -
Nonlinear finite element analysis of fibre-reinforced polymer/concrete joints
( SAGE Publications Inc. , 2016 , Article)The objective of this research work is to simulate the interfacial shear response of fibre-reinforced polymer/concrete joints using a micromechanics-based concrete approach. The M4 version of the microplane concrete theory ... -
Nonlinear forced vibrations of multi-scale epoxy/CNT/fiberglass truncated conical shells and annular plates via 3D Mori-Tanaka scheme
( Techno-Press , 2020 , Article)In the context of classic conical shell formulation, nonlinear forced vibration analysis of truncated conical shells and annular plates made of multi-scale epoxy/CNT/fiberglass composites has been presented. The composite ... -
Nonlinear forced vibrations of sandwich smart nanobeams with two-phase piezo-magnetic face sheets
( Springer Verlag , 2019 , Article)The present research is devoted to examine nonlinear forced vibration behavior of sandwich nanobeams with piezo-magnetic face sheets and rested on a hardening elastic substrate based on ordinary differential nonlocal ... -
Nonlinear free and forced vibrations of graphene nanoplatelet reinforced microbeams with geometrical imperfection
( Springer Verlag , 2019 , Article)Nonlinear free/forced vibration of a functionally graded graphene nanoplatelet (GNP) reinforced microbeam having geometrical imperfection which is rested on a non-linear elastic substrate have been studied in the present ... -
A Nonlinear Model of Newborn EEG with Nonstationary Inputs
( Springer US , 2010 , Article)Newborn EEG is a complex multiple channel signal that displays nonstationary and nonlinear characteristics. Recent studies have focussed on characterizing the manifestation of seizure on the EEG for the purpose of automated ... -
Nonlinear modeling and dynamic analysis of bioengineering hyper-elastic tubes based on different material models
( Springer , 2019 , Article)In this research, nonlinear vibrations of a hyper-elastic tube accounting for large deflection and moderate rotation have been examined. The hyper-elastic tube is assumed to be surrounded by a nonlinear hardening elastic ... -
Nonlinear stochastic drillstrings vibrations: Parametric study for stick-slip suppression
( Institute of Physics Publishing , 2018 , Conference Paper)Unstable vibrations caused by the transition between static and kinetic frictions produces stick-slip motions which is one of the primary causes of poor drilling efficiency and mechanism failure in the drilling process. ... -
Nonlinear stochastic modeling for optimal dispatch of distributed energy resources in active distribution grids including reactive power
( Elsevier B.V. , 2019 , Article)This paper deals with energy storage system (ESS) in active distribution networks. The purpose is to install ESSs on the grid to minimize network losses. The problem is expressed as an optimization programming to minimize ...
