Volume 14

A New Conjugate Gradient Method with Descent Properties and its Application to Regression analysis

Issues 1-2 Volume 14

Ibrahim Mohammed Sulaiman1, Mustafa Mamat1* 1Faculty of Informatics and Computing, Universiti Sultan Zainal Abidin, 21300 Terengganu, Malaysia corresponding author: *must@unisza.edu.my sulaimanib@unisza.edu.my Submitted 24/07/2019, Revised 13/01/2020, 2nd revised: 11/06/2020, accepted: 09/09/2020 Abstract: The area of unconstrained optimization has been enjoying vivid growth recently, with significant progress on numerical innovative techniques. The classical technique for obtaining the […]

Numerical Analysis of the One-Dimensional Nonlinear Boundary Value Problem that Modeling an Electrostatic NEMS by Two-Sided Approximations Method

Issues 3-4 Volume 14

O. Konchakovska, M. Sidorov Department of Applied Mathematics, Faculty of Information and Analytical Technologies and Managment, Kharkiv National University of Radio Electronics, 61166, Kharkiv, Ukraine Received 17 May, 2020; accepted in revised form 10 November, 2020 Abstract: The problem of numerical analysis of a nanoelectromechanical system, whose mathematical model is the first boundary value problem

Finite Integration Method Using Chebyshev Expansion for Solving Nonlinear Poisson Equations on Irregular Domains

Issues 1-2 Volume 14

A. Duangpan1 and R. Boonklurb2 1,2Department of Mathematics and Computer Science, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Received 27 March, 2019; accepted in revised form 28 April, 2020 Abstract: Several boundary value problems are de ned on complex shaped domains, such as pentagonal, circular, L-shaped, butter y, peanut-shaped and elliptic domains. These irregular

SEMI-EMPIRICAL COMPUTATIONAL METHOD FOR STUDYING THE DIFFUSION OF MOISTURE AND GENERATOR GASES IN THE CAPILLARY-POROUS SPACE OF REPRESENTATIVE BIOFUELS

Issues 1-2 Volume 14

T.V. Karpukhina1, V.N. Kovalnogov1,2, M.S. Boyarkin1 1Department of Heat-and-Power Engineering, Faculty of Power Engineering, Ulyanovsk State Technical University, SevernyVenets Street 32, 432027 Ulyanovsk, Russian Federation 2Scientific and Educational Center “Digital Industry”, South Ural State University, 76 Lenin Ave., 454080 Chelyabinsk, Russian Federation Received 10 March, 2020; Accepted in revised form 23 March, 2020 Abstract The

Effectiveness of the Probabilistic Assessment to Analyse of the Tall Building Safety using FE Method

Issues 3-4 Volume 14

J. Kralik, J. Kralik, jr. and P. Rosko Faculty of Civil Engineering, Slovak University of Technology in Bratislava, 810 05 Bratislava, Slovakia and Centre of Mechanics and Structural Dynamics 1010 Vienna University of Technology Vienna, Austria Received 01/03/2020, Revised 21/07/2020, Accepted 30/10/2020 Abstract: This paper describes some experiences from the deterministic and probabilistic analysis of

Probabilistic Assessment to Analyze of Steel Hall Collapse due to Extreme Wind Impact

Issues 3-4 Volume 14

J. Kralik and J. Kralik, jr. Department of Structural Mechanics, Faculty of Civil Engineering, Slovak University of Technology in Bratislava, 810 05 Bratislava, Slovakia Received 28/02/2020, Revised 21/07/2020, Accepted 28/10/2020 Abstract: Engineering structures are designed to resist all expected loadings without failure. However, structural failures do happen occasionally, mainly due to inadequate design and construction,

Numerical approximations of the Keyfitz-Kranzer type models by using entropy stable schemes

Issues 3-4 Volume 14

Carlos A. Vega1 Departmento de Matem´┐Żaticas y Estad?stica, Universidad del Norte, Km 5 Via Puerto Colombia Barranquilla, Colombia. Sonia Valbuena Grupo GIHEM, Universidad del Atl´┐Żantico, Km 7 Via Puerto Colombia Barranquilla, Colombia. Abstract: Numerical simulations for the Keyfitz-Kranzer system of equations are developed by using high-order entropy stable schemes proposed by Fjordholm et. al. [Arbitrary

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