Results 11 to 20 of about 81,429 (302)

Dynamic monitoring of saturated stiff clay soil foundation structure by falling weight deflectometer system under impact loads sensors effect

open access: yesMeasurement: Sensors, 2023
Experiments research is done to determine how saturated stiff clayey soil responds to a single impulsive load. Models made of saturated, stiff clay were investigated.
Azad Hameed Rasheed   +1 more
doaj   +3 more sources

Error Analysis for a Stiff System Procedure [PDF]

open access: yesMathematics of Computation, 1976
The analysis of the local truncation error in a numerical scheme for integrating stiff differential equations, presented in a recent paper by Guderley and Hsu, holds only in special circumstances, but a more general analysis preserves the main conclusions. Several modifications of the scheme are also considered.
Arthur David Snider
openaire   +2 more sources

An Enhanced Adaptive Bernstein Collocation Method for Solving Systems of ODEs

open access: yesMathematics, 2021
In this paper, we introduce two new methods to solve systems of ordinary differential equations. The first method is constituted of the generalized Bernstein functions, which are obtained by Bernstein polynomials, and operational matrix of ...
Ahmad Sami Bataineh   +3 more
doaj   +1 more source

Convergence of the Fourth Order Variable Step Size Super Class of Block Backward Differentiation Formula for Solving Stiff Initial Value Problems

open access: yesUMYU Scientifica Journal, 2022
In many fields of study such as science and engineering, various real life problems are created as mathematical models before they are solved. These models often lead to special class of ordinary differential equations known as stiff ODEs.
Najamuddeen Bala, Hamisu Musa
doaj   +1 more source

Variable Step Block Hybrid Method for Stiff Chemical Kinetics Problems

open access: yesApplied Sciences, 2022
Integration of a larger stiff system of initial value problems emerging from chemical kinetics models requires a method that is both efficient and accurate, with a large absolute stability region. To determine the solutions of the stiff chemical kinetics
Hira Soomro   +7 more
doaj   +1 more source

Stiff systems of ordinary differential equations. III. Partially stiff systems [PDF]

open access: yesThe Journal of the Australian Mathematical Society. Series B. Applied Mathematics, 1982
AbstractThe partially stiff system of ordinary differential equationsis studied by the methods developed in the earlier papers in this series. Here e is a small positive parameter, x and y are n- and m-vectors respectively, and A is nonsingular. A useful basis for the solution space of the homogeneous system is constructed and the method of variation ...
Mahony, J. J., Shepherd, J. J.
openaire   +2 more sources

A Portable Stiffness Measurement System [PDF]

open access: yesSensors, 2017
A new stiffness measurement method is proposed that utilizes the lateral deformation profile of an object under indentation. The system consists of a force measurement module between a pair of equidistant touch sensing modules. Unique feature of the method is that by adjusting the touch module separation, indenter protrusion, and spring constant of the
Onejae Sul, Eunsuk Choi, Seung-Beck Lee
openaire   +3 more sources

Shoe Bending Stiffness Influence on Lower Extremity Energetics in Consecutive Jump Take-Off

open access: yesApplied Bionics and Biomechanics, 2022
Objective. This study examined the influence of shoe bending stiffness on lower extremity energetics in the take-off phase of consecutive jump. Methods. Fifteen basketball and volleyball players wearing control shoes and stiff shoes performed consecutive
Sheng-Wei Jia   +4 more
doaj   +1 more source

Projective Integration for Hyperbolic Shallow Water Moment Equations

open access: yesAxioms, 2022
In free surface flows, shallow water models simplify the flow conditions by assuming a constant velocity profile over the water depth. Recently developed Shallow Water Moment Equations allow for variations of the velocity profile at the expense of a more
Amrita Amrita, Julian Koellermeier
doaj   +1 more source

Prediction of pelvic mobility using whole-spinal and pelvic alignment in standing and sitting position in total hip arthroplasty patients

open access: yesJournal of Orthopaedic Surgery, 2021
Purpose: Dislocation is a major complication after total hip arthroplasty (THA), and pelvic stiffness is reportedly a significant risk factor for dislocation.
Shintaro Watanabe   +5 more
doaj   +1 more source

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