Results 21 to 30 of about 10,664 (261)

Modeling and Simulation of a Packed Column Batch Still for Fruit Wine Distillations

open access: yesIEEE Access, 2022
Batch distillations are extensively used worldwide to produce fruit wine spirits with distinctive aromas. These processes are typically operated manually, based on the experience of the distiller.
Simon Diaz-Quezada   +2 more
doaj   +1 more source

Integrating Bernstein and Improved Block-Pulse Functions for Solving Linear Fredholm Integro-Differential Equations [PDF]

open access: yesEgyptian Journal of Pure and Applied Science
Mathematical modeling of real-life problems usually results in some form of functional equations, e.g. algebraic equations, differential equations, integral equations and others.
Mohamed Ramadan, Heba Osheba
doaj   +1 more source

Index reduction of differential algebraic equations by differential algebraic elimination

open access: yesCoRR, 2015
19 pages ...
Xiaolin Qin   +4 more
openaire   +2 more sources

Self-adjoint differential-algebraic equations [PDF]

open access: yesMathematics of Control, Signals, and Systems, 2013
Motivated from linear-quadratic optimal control problems for differential-algebraic equations (DAEs), we study the functional analytic properties of the operator associated with the necessary optimality boundary value problem and show that it is associated with a self-conjugate operator and a self-adjoint pair of matrix functions. We then study general
Peter Kunkel   +2 more
openaire   +1 more source

On Solving System of Linear Differential-Algebraic Equations Using Reduction Algorithm

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2020
In this paper, we present a new reduction algorithm for solving system of linear differential-algebraic equations with power series coefficients. In the proposed algorithm, we transform the given system of differential-algebraic equations into another ...
Srinivasarao Thota
doaj   +1 more source

Numerical Solution via Operational Matrix for Solving Prabhakar Fractional Differential Equations

open access: yesJournal of Mathematics, 2022
In this work, we apply the operational matrix based on shifted Legendre polynomials for solving Prabhakar fractional differential equations. The Prabhakar derivative is defined in three-parameter Mittag-Leffler function. We achieve this by first deriving
Farah Suraya Md Nasrudin, Chang Phang
doaj   +1 more source

Nonlinear differential equations and algebraic systems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1978
In this paper we obtain the general solution of scalar, first-order differential equations. The method is variation of parameters with asymptotic series and the theory of partial differential equations.
Lloyd K. Williams
doaj   +1 more source

Numerical Simulation of Chemical Propulsion Systems: Survey and Fundamental Mathematical Modeling Approach

open access: yesAerospace, 2023
This study deals with the mathematical modeling and numerical simulation of chemical propulsion systems (CPSs). For this, we investigate and summarize a comprehensive collection of the simulation modeling developments of CPSs in academic works ...
Jihyoung Cha
doaj   +1 more source

On discrete analogues of nonlinear implicit differential equations

open access: yesAdvances in Difference Equations, 2006
This paper deals with some classes of nonlinear implicit difference equations obtained via discretization of nonlinear differential-algebraic or partial differential-algebraic equations.
Anh Pham Ky, Loi Le Cong
doaj   +2 more sources

On observability of switched differential-algebraic equations [PDF]

open access: yes49th IEEE Conference on Decision and Control (CDC), 2010
We investigate observability of switched differential algebraic equations. The article primarily focuses on a class of switched systems comprising of two modes and a switching signal with a single switching instant. We provide a necessary and sufficient condition under which it is possible to recover the value of state trajectory (globally in time ...
Aneel Tanwani, Stephan Trenn
openaire   +1 more source

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