Results 141 to 150 of about 4,813,044 (315)

Euler‐Top Gaussian Modes: Structured Beams From Quadratic Angular Momentum Dynamics

open access: yesNanophotonics, Volume 15, Issue 9, 13 May 2026.
A new family of structured Gaussian light beams are introduced: Euler‐top Gaussian modes. Their ray‐orbital paths on the Gaussian Poincaré sphere correspond to the polhodes of the Euler top in classical angular momentum theory. This geometric and algebraic construction reveals a nonseparable mode family extending the familiar Hermite‐, Laguerre‐ and ...
Mark R. Dennis, Kerr Maxwell
wiley   +1 more source

Asymptotic shape of solutions to the perturbed simple pendulum problems

open access: yesElectronic Journal of Differential Equations, 2007
We consider the positive solution of the perturbed simple pendulum problem $$ u''(r) + frac{N-1}{r}u'(r) - g(u(t)) + lambda sin u(r) = 0, $$ with $0 < r < R$, $ u'(0) = u(R) = 0$. To understand well the shape of the solution $u_lambda$ when $lambda gg 1$,
Tetsutaro Shibata
doaj  

Simple but accurate periodic solutions for the nonlinear pendulum equation

open access: yesRevista Brasileira de Ensino de Física
Despite its elementary structure, the simple pendulum oscillations are described by a nonlinear differential equation whose exact solution for the angular displacement from vertical as a function of time cannot be expressed in terms of an elementary ...
Fábio M.S. Lima
doaj   +1 more source

Using Lignin and Spent Coffee Grounds as Bio‐Additives in 3D‐Printable Poly Lactic Acid/Multi‐Walled Carbon Nanotube Composites for Advanced Electronic Applications

open access: yesPolymer Composites, Volume 47, Issue 9, Page 8261-8272, 10 May 2026.
Bio‐based additives derived from lignin and spent coffee grounds (SCG) are used to enhance MWCNT dispersion in PLA composites, enabling improved electrical conductivity and reliable in material extruded strain‐gauge sensors. ABSTRACT In this work, three bio‐based additives, lignin, spent coffee grounds (SCG), and oil extracted from SCG (Ox‐SCG) were ...
Silvia Lage‐Rivera   +6 more
wiley   +1 more source

Fonctions et intégrales elliptiques [PDF]

open access: yesSurveys in Mathematics and its Applications, 2008
This paper presents the basic ideas and properties of elliptic functions and elliptic integrals as an expository essay. It explores some of their numerous consequences and includes applications to some problems such as the simple pendulum and the Euler ...
Ahmed Lesfari
doaj  

The AGM Simple Pendulum

open access: yes, 2012
We present a self-contained development of Gauss' Arithmetic-Geometric Mean (AGM) and the work of A.E.
openaire   +2 more sources

Mutation in RNF170 Causes Unsteady Gait with Hypertrophic Olivary Degeneration

open access: yesClinical Case Reports, Volume 14, Issue 5, May 2026.
ABSTRACT Hypertrophic olivary degeneration (HOD) is a rare form of transsynaptic degeneration resulting from disruption of the Guillain–Mollaret triangle, typically presenting with palatal tremor, ataxia, and nystagmus. Mutations in the Ring Finger Protein 170 (RNF170) gene have been associated with autosomal dominant sensory ataxia.
Change Wang
wiley   +1 more source

Impact of Variations in Membership Functions on the Performance of ANFIS for Nonlinear Systems as a Benchmark

open access: yesEngineering Reports, Volume 8, Issue 5, May 2026.
The graphical abstract illustrates how different membership functions influence the performance of ANFIS when applied to nonlinear system control, demonstrating clear variations in overshoot, settling behavior, and training accuracy across the four MF types.
Daniel Arega Mengesha
wiley   +1 more source

Use of Tracker software for teaching distance physics laboratories: Demonstration of error reduction in the simple pendulum [PDF]

open access: green, 2023
Ariatna Zamalloa   +6 more
openalex   +1 more source

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