Results 1 to 10 of about 14,883 (82)
Applied Sciences, 2022 A key technique for modeling 2D objects is built using a Bézier-like rational quadratic trigonometric function with two form parameters. Since they are generated employing weights, the suggested rational quadratic trigonometric spline curve schemes are ...
Shamaila Samreen +4 more
doaj +1 more source
Sensors, 2022 This paper proposes a single-stage three-phase modular flyback differential inverter (MFBDI) for medium/high power solar PV grid-integrated applications.
Ahmed Ismail M. Ali +4 more
doaj +1 more source
Numerical Approach of the Equilibrium Solutions of a Global Climate Model
Mathematics, 2020 We consider a coupled model surface-deep ocean effect, where an Energy Balance Model (EBM) is used for modelling the surface temperature and a two-dimensional heat equation represents the evolution of the temperature of the deep ocean. Although the model
Arturo Hidalgo, Lourdes Tello
doaj +1 more source
An application of flux difference splitting scheme in river-network model
Shui kexue jinzhan, 2013 The discrete procedure of non-conservative St. Venant equations is carried out by making use of the flux difference splitting scheme. In order to maintain the same dispersed form,characteristic theory is introduced into boundary points discretization ...
XIANG Xiaohua +3 more
doaj +1 more source
A hybrid numerical scheme for extended Boussinesq equations
Shui kexue jinzhan, 2013 To efficiently solve the extended Boussinesq equations,a hybrid finite-difference and finite-volume scheme is developed. The one-dimensional governing equations are kept in conservation form.
FANG Kezhao +3 more
doaj +1 more source
Influence of variable particle size reinforcement on mechanical and wear properties of alumina reinforced 2014Al alloy particulate composite [PDF]
FME Transactions, 2020 Al2O3 may be the most important reinforcement in aluminum-based composites that are rising quickly in modern years. The significance of this paper is to study the influence of Al2O3p size variation (i.e. 53 µm and 88 µm) and content (i.e. 9, 12, and 15Wt
Bharath V. +3 more
doaj
Sign changes in linear combinations of derivatives and convolutions of Polya frequency functions
International Journal of Mathematics and Mathematical Sciences, 1979 We obtain upper bounds on the number of sign changes of linear combinations of derivatives and convolutions of Polya frequency functions using the variation diminishing properties of totally positive functions.
Steven Nahmias, Frank Proschan
doaj +1 more source
Journal of Materiomics, 2019 Phase relation and microstructure evolution in the pressure-less sintered TiB2‒TiC ceramics preceded with mechanical alloying were systematically studied by a combination of SEM analysis. WC debris from milling balls promotes sintering by dissolving into
Tian-Yi Hu +4 more
doaj +1 more source
Modelling and Simulation in Engineering, 2015 A well-balanced scheme with total variation diminishing Runge-Kutta discontinuous Galerkin (TVD-RK DG) method for solving shallow water equations is presented.
Thida Pongsanguansin +2 more
doaj +1 more source
Global smoothness preservation and the variation-diminishing property
Journal of Inequalities and Applications, 1999 In the center of our paper are two counterexamples showing the independence of the concepts of global smoothness preservation and variation diminution for sequences of approximation operators.
Gavrea Ioan +4 more
doaj