Results 41 to 50 of about 178,536 (300)

Numerical investigation of the fractal capillary oscillator

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2023
This paper focuses on the numerical investigation of a fractal modification of capillary oscillator by using a coupling technique based on the two-scale transformation and the global residue harmonic balance method.
Bin Chen, Junfeng Lu, Zhongze Xia
doaj   +1 more source

Continuation of quasi-periodic solutions with two-frequency harmonic balance method [PDF]

open access: yes, 2016
International audienceNonlinear systems can have periodic solutions evolving with the parameters of the system. Studying this evolution (numerical continuation of solutions) uncovers sought-after regimes in musical acoustics : many musical instruments ...
Cochelin, Bruno   +3 more
core   +3 more sources

A new analytical approach for solving quadratic nonlinear oscillators

open access: yesAlexandria Engineering Journal, 2017
In this paper, a new analytical approach based on harmonic balance method (HBM) is presented to obtain the approximate periods and the corresponding periodic solutions of quadratic nonlinear oscillators.
Md. Mahtab Hossain Mondal   +3 more
doaj   +1 more source

A theoretical basis for the Harmonic Balance Method

open access: yesJournal of Differential Equations, 2013
The Harmonic Balance method provides a heuristic approach for finding truncated Fourier series as an approximation to the periodic solutions of ordinary differential equations. Another natural way for obtaining these type of approximations consists in applying numerical methods.
García-Saldaña, Johanna Denise   +1 more
openaire   +6 more sources

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Comparison Analysis Based on the Cubic Spline Wavelet and Daubechies Wavelet of Harmonic Balance Method

open access: yesAbstract and Applied Analysis, 2014
This paper develops a theoretical analysis of harmonic balance method, based on the cubic spline wavelet and Daubechies wavelet, for steady state analysis of nonlinear circuits under periodic excitation.
Jing Gao
doaj   +1 more source

Multitone signal harmonic balance method

open access: yesElectronics Letters, 1999
A novel approach for generating the frequency/time conversion matrices of multitone signals is presented. Conversion matrices are normally used in the harmonic balance method to evaluate currents/voltages of nonlinear devices. The conditioning number of these matrices is a fundamental aspect and the proposed approach always generated matrices with the ...
openaire   +1 more source

The period function and the Harmonic Balance Method

open access: yesBulletin des Sciences Mathématiques, 2015
In this paper we consider several families of potential non-isochronous systems and study their associated period functions. Firstly, we prove some properties of these functions, like their local behavior near the critical point or infinity, or their global monotonicity.
García-Saldaña, Johanna Denise   +1 more
openaire   +4 more sources

A high order purely frequency-based harmonic balance formulation for continuation of periodic solutions [PDF]

open access: yes, 2009
Combinig the harmonic balance method (HBM) and a continuation method is a well-known technique to follow the periodic solutions of dynamical systems when a control parameter is varied.
Allgower   +32 more
core   +3 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

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