Results 11 to 20 of about 52,376 (308)

An Application to Transient Current Signal based Induction Motor Fault Diagnosis of Fourier-Bessel Expansion and Simplified Fuzzy ARTMAP [PDF]

open access: yes, 2013
The start-up transient signals have been widely used for fault diagnosis of induction motor because they can reveal early defects in the development process, which are not easily detected with the signals in the steady state operation. However, transient
Ball, Andrew   +4 more
core   +1 more source

A parametric macromodelling technique [PDF]

open access: yes, 2009
With the ever growing complexity of high-frequency systems in the electronic industry, formation of reduced-order models or compact macromodels of these systems is paramount.
Georgi G. Grahovski   +3 more
core   +1 more source

Investigating the Causal Factors Determining Environmental Quality Indicators in Iran Using the New Approach of Bootstrap Fourier Granger Causality in Quantile (BFGC-Q) [PDF]

open access: yesمحیط زیست و توسعه فرابخشی
Introduction: According to the statistics published by the Global Footprint Network, Iran's ecological deficit, which was 0.55 per capita global hectare in 1961, has increased by 554% to 2.50 per capita global hectare in 2022; which shows that the ...
Sahebe Mohamadian Mansour   +1 more
doaj   +1 more source

Reducing Approximation Error in the Fourier Flexible Functional Form

open access: yesEconometrics, 2017
The Fourier Flexible form provides a global approximation to an unknown data generating process. In terms of limiting function specification error, this form is preferable to functional forms based on second-order Taylor series expansions.
Tristan D. Skolrud
doaj   +1 more source

Fourier expansions for higher-order Apostol–Genocchi, Apostol–Bernoulli and Apostol–Euler polynomials

open access: yesAdvances in Difference Equations, 2020
Fourier expansions of higher-order Apostol–Genocchi and Apostol–Bernoulli polynomials are obtained using Laurent series and residues. The Fourier expansion of higher-order Apostol–Euler polynomials is obtained as a consequence.
Cristina B. Corcino, Roberto B. Corcino
doaj   +1 more source

Fourier Expansions [PDF]

open access: yesProceedings of the Glasgow Mathematical Association, 1952
The theory of operational solutions of differential equations in applied mathematics suggests a method of developing the theory of Fourier and allied series that is simpler for ordinary applications than the classical development. It may be useful to those whose interests lie in such applications rather than in the deeper analytical processes ...
openaire   +2 more sources

An approach for one dimensional periodic arbitrary lithography based on Fourier series

open access: yesEngineering Science and Technology, an International Journal, 2021
In interference lithography, 1-dimensional (1D) Fourier series expansion (FSE) technique can be used to create 1D periodic arbitrary patterns. Since the energy of electric field can change the solubility of photoresist, the required electric field ...
Mahdi Kordi   +3 more
doaj   +1 more source

On the Fourier expansions of Jacobi forms [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
We use the relationship between Jacobi forms and vector‐valued modular forms to study the Fourier expansions of Jacobi forms of indexes p, p2, and pq for distinct odd primes p, q. Specifically, we show that for such indexes, a Jacobi form is uniquely determined by one of the associated components of the vector‐valued modular form.
openaire   +2 more sources

Fourier expansions at cusps [PDF]

open access: yesThe Ramanujan Journal, 2019
Final accepted version. The v1 of this preprint included an appendix, which is available at [arXiv:1905.02946]
Brunault, François, Neururer, Michael
openaire   +2 more sources

On the conformal spin dependence of the perturbative QCD vacuum singularity

open access: yesJournal of High Energy Physics, 2022
We study the four-gluon scattering amplitude in the high energy limit of QCD written in terms of its conformal expansion. We highlight the need to include both even and odd conformal spin contributions in order to map it to an iterative representation in
Grigorios Chachamis, Agustín Sabio Vera
doaj   +1 more source

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