Results 61 to 70 of about 79,973 (227)

Solusi Numerik Persamaan Getaran Pegas teredam menggunakan Metode Rayleigh-Ritz [PDF]

open access: yes, 2018
ABSTRAK Penelitian ini membahas tentang solusi numerik persamaan getaran pegas teredam yang merupakan persamaan diferensial biasa linier orde dua dengan menggunakan metode Rayleigh-Ritz.
Rahmawati, Anik Rizka
core  

Rayleigh--Ritz Majorization Error Bounds of Mixed Type [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 2017
20 pages, 1 figure.
Peizhen Zhu, Andrew V. Knyazev
openaire   +2 more sources

Toward Genuine Efficiency and Cluster Robustness of Preconditioned CG‐Like Eigensolvers

open access: yesNumerical Linear Algebra with Applications, Volume 33, Issue 2, April 2026.
ABSTRACT The locally optimal block preconditioned conjugate gradient (LOBPCG) method is a popular solver for large and sparse Hermitian eigenvalue problems. However, recently proposed alternatives for its single‐vector version LOPCG indicate certain problematic cases with less accurate preconditioners and clustered target eigenvalues.
Ming Zhou, Klaus Neymeyr
wiley   +1 more source

Free vibration analysis of plates and shells by using the Superposition Method [PDF]

open access: yes, 2010
This thesis is devoted to investigate the capability of the Superposition Method for obtaining the transient response of plates and the natural frequencies of thin doubly curved shallow shells.
Mochida, Yusuke
core  

Rayleigh-Taylor mixing: confinement by stratification and geometry [PDF]

open access: yes, 2010
Rayleigh-Taylor instability has been an area of active research in fluid dynamics for the last twenty years, but relatively little attention has been paid to the dynamics of problems where Rayleigh-Taylor instability plays a role, but is only one ...

core   +2 more sources

Free vibration of arbitrary-shaped laminated triangular thin plates with elastic boundary conditions

open access: yesResults in Physics, 2018
This paper studies the free vibration of arbitrary shaped laminated triangular thin plates based on a modified Fourier series method. An arbitrary shaped triangular plate is mapped into a right-angled isosceles triangular plate with unit length by the ...
Xiuhai Lv, Dongyan Shi
doaj   +1 more source

Existence and Stability for Traveling Waves of Fourth‐Order Semilinear Wave and Schrödinger Equations

open access: yesStudies in Applied Mathematics, Volume 156, Issue 4, April 2026.
ABSTRACT We investigate the existence and spectral stability of traveling wave solutions for a class of fourth‐order semilinear wave equations, commonly referred to as beam equations. Using variational methods based on a constrained maximization problem, we establish the existence of smooth, exponentially decaying traveling wave profiles for wavespeeds
Vishnu Iyer   +2 more
wiley   +1 more source

[Ritz, disegno] [PDF]

open access: yes, 2013
Disegno del progetto "Ritz" . file jpeg, 25,3×19,78 cm 300 dpiSketch of the project "Ritz".
Marisaldi, Eva
core  

Vibration analysis of arbitrary straight-sided quadrilateral plates using a simple first-order shear deformation theory

open access: yesResults in Physics, 2018
This paper studies the free vibration characteristics of arbitrary straight-sided quadrilateral plates using a simple first-order shear deformation theory (SFSDT), which contains only four unknown displacement components.
Dongyan Shi   +3 more
doaj   +1 more source

Degeneracy Sensing Light Detection and Ranging‐Inertial Simultaneous Localization and Mapping with Dual‐Layer Resistant Odometry and Scan‐Context Loop‐Closure Detection Backend in Diverse Environments

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 3, March 2026.
This paper presents a degeneracy‐aware light detection and ranging (LiDAR)‐inertial framework that enhances LiDAR simultaneous localization and mapping performance in challenging environments. The proposed system integrates a dual‐layer robust odometry frontend with a Scan‐Context‐based loop‐closure detection backend.
Haoming Yang   +4 more
wiley   +1 more source

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