Results 21 to 30 of about 3,680 (277)

Comparison of Geometric and Volumetric Methods to a 3D Solid Model for Measurement of Gully Erosion and Sediment Yield

open access: yesGeosciences, 2018
Gully erosion is a global problem that degrades land and reduces its utility for agriculture, development, and water quality. Quantification of sediment yield and control of sediment sources is essential for environmental protection.
Ingrid Luffman   +2 more
doaj   +1 more source

Reducing computational requirement of stability analysis of milling by partial averaging

open access: yesManufacturing Review, 2014
The trapezoidal rule and Taylor theorem are used to establish a novel reformulation technique called Partial Averaging (PA). PA is seen to reduce computational time (CT) of computer central processing unit (CPU) without loss of accuracy.
Godwin Ozoegwu Chigbogu, Sam Omenyi
doaj   +1 more source

New Accurate Approximation for Average Error Probability

open access: yesIEEE Access, 2021
This paper proposes new accurate approximations for average error probability (AEP) of a communication system employing either M-phase-shift keying (PSK) or differential quaternary PSK with Gray coding (GC-DQPSK) modulation schemes over generalized ...
Yassine Mouchtak, Faissal El Bouanani
doaj   +1 more source

An Enhanced Navigation Algorithm with an Adaptive Controller for Wheeled Mobile Robot Based on Bidirectional RRT

open access: yesActuators, 2022
A navigation algorithm providing motion planning for two-wheeled mobile robots is proposed in this paper. The motion planning integrates path planning, velocity planning and controller design. Bidirectional rapidly-exploring random trees algorithms (RRT)
Bing-Gang Jhong, Mei-Yung Chen
doaj   +1 more source

Linear Approximation of Continuous Systems with Trapezoid Step Functions [PDF]

open access: yes, 2012
We introduce a novel abstract domain for the safe approximation of continuous functions in the context of abstract interpretation-based static analysis. The key-idea is to represent \(\mathcal{C}_+^2\) functions by a finite sequence of trapezoids. In this way, we get a strictly more precise approximation of the actual values with respect to existing ...
COSTANTINI, GIULIA   +2 more
openaire   +1 more source

A new multiscale algorithm for solving the heat conduction equation

open access: yesAlexandria Engineering Journal, 2023
In this paper, a multiscale algorithm has been initially proposed for a numerical solution to the heat conduction equation. Firstly, the differential form of the heat conduction equation is transformed into an integral form, and then the time variable is
Yingchao Zhang, Yuntao Jia, Yingzhen Lin
doaj   +1 more source

Quadrature formulas and taylor series of secant and tangent [PDF]

open access: yesИкономика и компютърни науки, 2017
Second-order quadrature formulas and their fourth-order expansions are derived from the Taylor series of the secant and tangent functions. The errors of the approximations are compared to the error of the midpoint approximation.
Yuri Dimitrov   +2 more
doaj  

A Variational Formulation for Fins with Nonzero Contact Thermal Resistance at the Base

open access: yesAxioms, 2023
This paper considers the steady-state heat transfer process in a fin with a Robin boundary condition at the base (instead of the usual Dirichlet boundary condition at the base). Robin boundary condition models the effect of the thermal resistance between
Rogério Martins Saldanha da Gama   +3 more
doaj   +1 more source

A Compact Scheme for a Partial Integro-Differential Equation with Weakly Singular Kernel [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2017
Compact finite difference scheme is applied for a partial integro-differential equation with a weakly singular kernel. The product trapezoidal method is applied for discretization of the integral term. The order of accuracy in space and time is , where .
J. Biazar   +2 more
doaj  

A Study on the Approximation of Clustered Data to Parameterized Family of Fuzzy Membership Functions for the Induction of Fuzzy Decision Trees

open access: yesCybernetics and Information Technologies, 2015
This paper investigates the Triangular, Trapezoidal and Gaussian approximation methods for the purpose of induction of Fuzzy Decision Trees (FDT). The generation of FDT is done using a Fuzzy ID3 induction algorithm.
Narayanan Swathi J.   +3 more
doaj   +1 more source

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