Results 41 to 50 of about 25,962,359 (295)
Structured pseudospectra in structural engineering [PDF]
, 2005 This paper presents a new method for computing the pseudospectra of a matrix that respects a prescribed sparsity structure. The pseudospectrum is defined as the set of points in the complex plane to which an eigenvalue of the matrix can be shifted by a ...
Wagenknecht, T, Agarwal, J
core +1 more source
Polynomial eigenvalue solution for elastic wave prediction of piezoelectric shunting arrays
Frontiers in Physics, 2022 This paper presents a polynomial eigenvalue solution to predict the propagation behaviors of elastic wave in piezoelectric shunting arrays. Based on the Bloch theorem, one independent unit cell is selected to conduct the dynamic characteristic analysis ...
Huisong Yang, Gang Wang
doaj +1 more source
Complex eigenvalue analysis of railway wheel/rail squeal
International Journal of Engineering, Science and Technology, 2016 Wheel/rail squeal noise of trains is one of the challenging problems of trains, but a successful model for the squeal problem has not been presented until now. In this study, a new approach was presented to investigate the basic mechanism of the wheel/rail squeal noise, using complex eigenvalue analysis by the finite element method.
Goo, B.C., Kim, J.C.
openaire +3 more sources
Complex eigenvalue analysis and parameters analysis to investigate the formation of railhead corrugation in sharp curves [PDF]
Wear, 2020 Abstract Rail corrugation, a quasi-sinusoidal irregularity of the rail head, is a common issue experienced throughout the railway networks worldwide. It generally leads to high wheel-rail dynamic loads, increased noise emission, and poor ride comfort. Most commonly, rail corrugation is likely to develop on sharp curves.
El Beshbichi O. +3 more
openaire +2 more sources
A Novel Eigenvalue Algorithm for the Complex Band Structure and Eigenmodes of Plasmonic Crystals
IEEE Photonics Journal, 2016 The influence of ohmic (metallic) loss on the complex band structure (BS) and eigenmodes of 2-D plasmonic crystals is investigated. With the help of wave equations and periodic boundary conditions, a finite-difference-based eigenvalue algorithm is ...
Hui Wang +3 more
doaj +1 more source
The spatiotemporal analysis of the population migration network in China, 2021
Infectious Disease Modelling, 2023 Population migration is a critical component of large-scale spatiotemporal models of infectious disease transmission. Identifying the most influential spreaders in networks is vital to controlling and understanding the spreading process of infectious ...
Wenjie Li, Ye Yao
doaj +1 more source
On spurious instabilities on the β-planes with no mean flows [PDF]
Annales Geophysicae, 2010 Recent numerical calculations that suggest the existence of instabilities of the shallow water equations on the β-planes (both mid-latitudes and on the equator) are shown to be associated with spurious instabilities rather than genuine unstable modes.
N. Paldor
doaj +1 more source
PENERAPAN METODE ANALISA DISKRIMINAN MAJEMUK DENGAN PENDEKATAN TRANSFORMASI FUKUNAGA KOONTZ
JUTI: Jurnal Ilmiah Teknologi Informasi, 2009 Linear discriminant analysis is one of method frequently used and developed in the field of pattern recognition. This method tries to find the optimal subspace by maximizing the Fisher Criterion. Application of pattern recognition in highdimensional data
Rully Soelaiman +2 more
doaj +1 more source
TechnologiesTopology optimization is a well known and sophisticated method for designing structures. Through a finite element analysis, this method optimizes the design and material distribution to obtain an ideal strength-to-weight ratio and improved strain-to ...
Daniel Chelopo, Kapil Gupta
doaj +1 more source
Digital Cognitive Phenotyping for Differential Diagnosis and Monitoring in Neurological Conditions
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To assess the utility, accessibility, and equivalence to supervised scales of online cognitive assessment in older individuals with cognitive impairment. Methods Patients with Alzheimer's disease (AD, n = 31), idiopathic normal pressure hydrocephalus (iNPH, n = 26), and traumatic brain injury (TBI, n = 23) completed online cognitive ...
Martina Del Giovane +10 more
wiley +1 more source