Browsing Mathematics, Statistics & Physics by Title
Now showing items 532-551 of 726
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Online monitoring of climatic parameters: a statistical study about environmental changes in Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Twentieth century has witnessed unprecedented changes in the climate whose profound effects are also observed on ecosystem and human life. The source of these changes are presumed to be increasing concentration of greenhouse ... -
OpenFOAM for computational combustion dynamics
( Springer Nature , 2022 , Article)In computational fluid dynamics (CFD), the mathematical description of a physical phenomenon that involves fluid flow, combustion, and chemical reaction is combined with a numerical solution of the problem via the use of ... -
Optical fluorescent spider silk electrospun nanofibers with embedded cerium oxide nanoparticles
( SPIE , 2018 , Article)The work demonstrates an electrospun nanocomposite of recombinant spider silk protein (rSSp) nanofibers with embedded cerium oxide (ceria) nanoparticles. RSSP (MaSp1) has been produced, extracted from goat milk, and ... -
Optimal Boundary Control for Selective Catalytic Reduction Distributed Parameter Model
( Elsevier B.V. , 2018 , Article)This paper is devoted to design a model-based boundary optimal controller for selective catalytic reduction system. The mathematical model consists of coupled parabolic-hyperbolic PDEs with an ODE. The main objective is ... -
Optimal boundary control of coupled parabolic PDE-ODE systems using infinite-dimensional representation
( Elsevier , 2015 , Article)The optimal boundary control problem is studied for coupled parabolic PDE-ODE systems. The linear quadratic method is used and exploits an infinite-dimensional state-space representation of the coupled PDE-ODE system. ... -
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 ... -
Optimal control of a time-varying system of coupled parabolic-hyperbolic PDEs
( IEEE Computer Society , 2017 , Conference Paper)This paper is devoted to design an optimal linear quadratic controller for a time-varying system of coupled parabolic and hyperbolic partial differential equations (PDEs). Infinite-dimensional state space approach is adopted ... -
Optimal control of an advection-dominated catalytic fixed-bed reactor with catalyst deactivation
( Elsevier , 2013 , Article)The paper focuses on the linear-quadratic control problem for a time-varying partial differential equation model of a catalytic fixed-bed reactor. The classical Riccati equation approach, for time-varying infinite-dimensional ... -
Optimal control of coupled parabolic–hyperbolic non-autonomous PDEs: infinite-dimensional state-space approach
( Taylor and Francis Ltd. , 2018 , Article)This paper deals with the design of an optimal state-feedback linear-quadratic (LQ) controller for a system of coupled parabolic–hypebolic non-autonomous partial differential equations (PDEs). The infinite-dimensional state ... -
Optimal linear–quadratic control of coupled parabolic–hyperbolic PDEs
( Taylor and Francis Ltd. , 2017 , Article)This paper focuses on the optimal control design for a system of coupled parabolic-hypebolic partial differential equations by using the infinite-dimensional state-space description and the corresponding operator Riccati ... -
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 ... -
Optimal Production Planning Strategy for Deteriorating Items in Terms of Emission Tax, Pollution, and R&D Investment
( Springer Science and Business Media B.V. , 2018 , Conference Paper)Firms are faced with the question of what policies to implement to ensure efficient abatement behavior? In this paper, we aim to determine the optimal production rate and the optimal investment rate in pollution abatement ... -
Optimization design of the CUSUM and EWMA charts for autocorrelated processes
( John Wiley and Sons Ltd , 2017 , Article)The traditional control charts produce frequent false alarm signals in the presence of autocorrelation. The implementation of the modified chart scheme is a way of handling the problem of autocorrelation in control charts. ... -
Optimization of tank engine crank shaft material properties
( Taylor and Francis Ltd. , 2023 , Article)Metals and coating materials, with best material properties are highly desired in the field of engineering to control the stresses and strains, that play important role in design strategies. The crankshaft, an important ... -
Ordered Sp -metric spaces and some fixed point theorems for contractive mappings with application to periodic boundary value problems
( Springer International Publishing , 2019 , Article)In this paper, we introduce the structure of Sp-metric spaces as a generalization of both S-metric and Sb-metric spaces. Also, we present the notions of S?-contractive mappings in the setup of ordered Sp-metric spaces and ... -
Organic floating gate memory structures
( Springer International Publishing , 2017 , Book chapter)[No abstract available] -
Orientation dependence in multiple ionization of He 2 and Ne 2 induced by fast, highly charged ions: Probing the impact-parameter-dependent ionization probability in 11.37-MeV/u S 14 + collisions with He and Ne
( American Physical Society , 2014 , Article)We investigate orientation effects in the fragmentation of He2 and Ne2 induced by S14+ projectiles at an impact energy of 11.37 MeV/u. Multiple ionization shows a strong dependence on the orientation of the dimer axis with ... -
Oscillatory Singular Integral Operators with Hölder Class Kernels
( Birkhauser Boston , 2019 , Article)We establish the boundedness on Lp(Rn) of oscillatory singular integral operators whose kernels are the products of an oscillatory factor with bilinear phase and a Calderón–Zygmund kernel K(x, y) satisfying a Hölder ... -
Outlier robust nonlinear mixed model estimation
( John Wiley & Sons, Ltd. , 2015 , Article)In standard analyses of data well-modeled by a nonlinear mixed model, an aberrant observation, either within a cluster, or an entire cluster itself, can greatly distort parameter estimates and subsequent standard errors. ... -
Overlapping Schwarz waveform relaxation method for the solution of the convection-diffusion equation
( John Wiley & Sons, Ltd. , 2008 , Article)In this article we study the convergence of the overlapping Schwarz wave form relaxation method for solving the convection-diffusion equation over multi-overlapped subdomains. It is shown that the method converges linearly ...