College of Arts & Sciences: Recent submissions
Now showing items 441-460 of 3563
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Optimal output-feedback temperature regulation of a catalytic reverse flow reactor PDEs model
( Elsevier , 2021 , Article)In this work, control and estimation problems have been studied for a catalytic reversal flow reactor (CFRR). A stabilizing compensator is developed on the basis of the infinite-dimensional state-space description of the ... -
Duality-based optimal compensator for boundary control hyperbolic PDEs system: Application to a tubular cracking reactor
( Elsevier , 2020 , Article)This paper is devoted to the design of an optimal stabilizing compensator for a boundary control distributed parameter system that is described by a set of hyperbolic partial differential equations (PDEs). The standard ... -
Optimal control and duality-based observer design for a hyperbolic PDEs system with application to fixed-bed reactor
( Taylor and Francis Ltd. , 2021 , Article)This paper is devoted to the design of an optimal infinite-dimensional Luenberger observer combined with a linear-quadratic state feedback controller for a system of hyperbolic PDEs. The design is based on the duality fact ... -
Observer design for hyperbolic PDEs system with application to a fixed-bed chemical reactor model
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)This work is devoted to the development of an optimal infinite-dimensional Luenberger observer for a system of hyperbolic PDEs. For this purpose, the duality fact linking the control design and the observer design is used. ... -
Boundary Output-Feedback Regulation of a Catalytic Cracking Reactor
( Institute of Electrical and Electronics Engineers Inc. , 2023 , Conference Paper)This work focuses on the design of a boundary output feedback regulator for a catalytic cracking reactor model which can be represented by a set of partial differential equations (PDEs). Based on the linear abstract ... -
Error-feedback regulation of a distributed parameter cracking process by using a spectral approach
( Institute of Electrical and Electronics Engineers Inc. , 2023 , Conference Paper)The paper focuses on controlling a distributed parameter cracking process using state and error feedback regulators. The principal aim is to accomplish tracking of a desired output while effectively managing disturbances ... -
Boundary optimal control of coupled parabolic PDE-ODE systems
( IFAC Secretariat , 2014 , Conference Paper)This paper deals with boundary optimal control problem for coupled parabolic PDEODE systems. The problem is studied using infinite-dimensional state space representation of the coupled PDE-ODE system. Linearization of the ... -
Spectral-based optimal output-feedback boundary control of a cracking catalytic reactor PDE model
( Taylor and Francis Ltd. , 2024 , Article)This research paper focuses on the design of a boundary optimal controller with output feedback for a tubular catalytic cracking reactor. The process is represented by a set of non-linear parabolic partial differential ... -
مستقبل تدريس علوم الإعلام والاتصال في ضوء المستجدات التكنولوجية والمجتمعية "رؤية استشرافية في ضوء إطار جامعة قطر للتميز في التعليم".
( الجمعية السعودية للإعلام و الاتصال , 2024 , Article)في ضوء التحديات التي تفرضها التطورات التكنولوجية المتلاحقة على أطراف العملية التعليمية: المعلم، والمتعلم، وبيئة التعلم، وبخاصة في ظل التغيرات التي جلبتها جائحة كورونا (كوفيد-19) على هذا الصعيد، تسعى هذه الدراسة إلى مقاربة ... -
Genetic analysis of QTLs controlling allelopathic characteristics in sorghum
( Public Library of Science , 2020 , Article)Mature sorghum herbage is known to contain several water-soluble secondary metabolites (allelochemicals). In this study, we investigated quantitative trait loci (QTLs) associated with allelochemical characteristics in ... -
The Ligon lintless-2 Short Fiber Mutation Is Located within a Terminal Deletion of Chromosome 18 in Cotton<sup>1</sup>
( American Society of Plant Biologists , 2020 , Article)Extreme elongation distinguishes about one-fourth of cotton (Gossypium sp.) seed epidermal cells as “lint” fibers, useful for the textile industry, from “fuzz” fibers (,5 mm). Ligon lintless-2 (Li2), a dominant mutation ... -
The Potential of Marine Microalgae for the Production of Food, Feed, and Fuel (3F)
( Multidisciplinary Digital Publishing Institute (MDPI) , 2022 , Article)Whole-cell microalgae biomass and their specific metabolites are excellent sources of renewable and alternative feedstock for various products. In most cases, the content and quality of whole-cell biomass or specific ... -
Aquaculture from inland fish cultivation to wastewater treatment: a review
( Springer Nature , 2023 , Article)The aquaculture industry is rapidly developing, generating a high amount of wastewater. Inland aquaculture effluents contain nutrients and other substances that can cause eutrophication and the emergence of resistive ... -
Microalgae: A potential bioagent for treatment of emerging contaminants from domestic wastewater
( Elsevier , 2024 , Article)Water crisis around the world leads to a growing interest in emerging contaminants (ECs) that can affect human health and the environment. Research showed that thousands of compounds from domestic consumers, such as endocrine ... -
The explicit eigenvalues and eigenfunctions of the generalized neumann kernel in annular domains
( Universiti Putra Malaysia , 2019 , Article)This paper presents the explicit forms of the eigenvalues of the general-ized Neumann kernel in annular domains and the explicit forms of the corresponding eigenfunctions. It follows from these explicit forms that, except ... -
PlgCirMap: A MATLAB toolbox for computing conformal mappings from polygonal multiply connected domains onto circular domains
( Elsevier , 2020 , Article)This paper presents a MATLAB toolbox for computing the conformal mapping from a given polygonal multiply connected domain onto a circular multiply connected domain and its inverse. The toolbox can be used for multiply ... -
Application of integral equations to simulating local fields in carbon nanotube reinforced composites
( Elsevier , 2020 , Book chapter)We consider the steady heat conduction problem within a thermal isotropic and homogeneous square ring composite reinforced by nonoverlapping and randomly distributed carbon nanotubes (CNTs). We treat the CNTs as rigid line ... -
The motion of a point vortex in multiply-connected polygonal domains
( Multidisciplinary Digital Publishing Institute (MDPI) , 2020 , Article)We study the motion of a single point vortex in simply-and multiply-connected polygonal domains. In the case of multiply-connected domains, the polygonal obstacles can be viewed as the cross-sections of 3D polygonal ... -
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 ... -
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 ...
