Results 91 to 100 of about 528,533 (276)

Theoretical calculation method of hyperbolic rotating thin shell bending problem

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveIn order to analyze the bending characteristics of a hyperbolic rotating thin shell, the complex two-dimensional mechanical problem is simplified into a one-dimensional bending problem based on Euler's Bernoulli beam theory.
Er ZHANG   +4 more
doaj   +1 more source

Literature Review of Applying Visual Method to Understand Mathematics

open access: yesMATEC Web of Conferences, 2015
As a new method to understand mathematics, visualization offers a new way of understanding mathematical principles and phenomena via image thinking and geometric explanation.
Yu Xiaojuan
doaj   +1 more source

The Smarandache Function [PDF]

open access: yes, 1996
The function named in the title of this book is originated from the exiled Romanian mathematician Florentin Smarandache, who has significant contributions not only in mathematics, but also in literature.
Seleacu, V.   +3 more
core   +1 more source

A Geometric Interpretation for the Algebraic Properties of Second‐Order Ordinary Differential Equations

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 6, Page 6912-6917, April 2025.
ABSTRACT Nowadays, a substantial portion of investigations concerning the symmetry analysis of differential equations predominantly adhere to a framework comprising the following key procedures: (i) the derivation of symmetries, (ii) the determination of an optimal system, (iii) the utilization of these symmetries to construct invariants or ...
A. Paliathanasis   +2 more
wiley   +1 more source

Mathematical model of rigid body motion for the research of the “Dzhanibekov's effect”

open access: yesPropulsion and Power Research
An alternative set of angles for determining the position of a rigid body, instead of Euler angles, is proposed. These angles were used to model the motion of a rigid body (rotor) rotating around a horizontal axis.
Oleksandr I. Tarasenko   +2 more
doaj   +1 more source

An Implicit Nodal–Staggered Finite Difference Scheme for Damped Shear Beam Models Without Rotational Inertia

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We develop and analyze a fully discrete finite difference approximation for a damped shear beam model with mixed boundary conditions and no rotational inertia. The absence of a second‐order time derivative in the rotational equation gives rise to an asymmetric temporal structure.
Anderson de Jesus Araújo Ramos   +3 more
wiley   +1 more source

Vibration Attenuation of Cantilever Beam Using Electromagnetic Delayed Feedback

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT This study presents a combined analytical and numerical investigation of a single‐input single‐output delayed feedback controller designed to suppress vibrations in a cantilever beam actuated by an electromagnet positioned beneath its free end. An analytical model was developed using the linearized equation of motion for a transversely excited
Mohammad Alabdullah, Khaled Alhazza
wiley   +1 more source

Analysis of the COVID-19 pandemic and prediction with numerical methods

open access: yesInternational Journal of Mathematics for Industry
Coronavirus spreads worldwide with various symptoms and strains such as COVID-19, SARS, MERS. Outbreak and prevention of the coronavirus can be studied by many mathematical models like SIR, SEIR and SEIQDR. In this paper, we employed Euler’s method based
M. M. Singh   +3 more
doaj   +1 more source

Euler's polyhedral formula

open access: yes, 2010
Educação Superior::Ciências Exatas e da Terra::MatemáticaLet the number of vertices, edges, and faces of a polyhedron be V, E, and F. The Euler characteristic, V+F-E, is always 2 for convex polyhedra. This Demonstration shows Euler's polyhedral formula V+
Zenil, Hector
core  

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