Results 21 to 30 of about 1,268,914 (319)
New approach for the determination of the characteristics of signals containing fluctuating harmonics [PDF]
International Journal of Metrology and Quality Engineering, 2011 This paper describes a new approach for the analysis of signals containing fluctuating harmonics. It is based on the Fourier transform, using windowing to reduce the error arising from analysing the signal over a non integer number of signal periods and ...
Poletaeff A., Espel P.
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Forecasting Inflation Based on Hybrid Integration of the Riemann Zeta Function and the FPAS Model (FPAS + ζ): Cyclical Flexibility, Socio-Economic Challenges and Shocks, and Comparative Analysis of Models [PDF]
SocioEconomic ChallengesInflation forecasting is one of the main socio-economic challenges in modern macroeconomic modeling, especially when cyclical, structural, and shock factors act simultaneously in the system. Traditional forecasting systems, such as Forecasting and Policy
Davit Gondauri
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Krawtchouk transforms and convolutions
Bulletin of Mathematical Sciences, 2020 We present an operator calculus based on Krawtchouk polynomials, including Krawtchouk transforms and corresponding convolution structure which provides an inherently discrete alternative to Fourier analysis.
Philip Feinsilver, René Schott
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Journal of Medical Physics, 2022 Purpose: Many artificial intelligence-based computational procedures are developed to diagnose COVID-19 infection from chest X-ray (CXR) images, as diagnosis by CXR imaging is less time consuming and economically cheap compared to other detection ...
Durjoy Majumder
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FREQUENCY ANALYSIS OF DELTA SCUTI VARIABLE STARS. I.
Odessa Astronomical Publications, 2017 The Fourier analyses are performed for photoelectric observations of two δ Scuti stars V567 Oph and KU Cen. It is shown that V567 Oph is a multiperiodic star and KU Cen has one main period.
V. P. Bezdenezhnyi
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Propagation of shock wave of nitrogen gas in Titan stratosphere
Journal of Taibah University for Science, 2021 Nitrogen gas is considered one of the significant standard gases in stratosphere of Titan, Saturn's largest moon, which represents almost 98.4% of Titan atmosphere chemical composites.
H. G. Abdelwahed, Abeer A. Mahmoud
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Operator-valued zeta functions and Fourier analysis [PDF]
, 2019 The Riemann zeta function $\zeta(s)$ is defined as the infinite sum $\sum_{n=1}^\infty n^{-s}$, which converges when ${\rm Re}\,s>1$. The Riemann hypothesis asserts that the nontrivial zeros of $\zeta(s)$ lie on the line ${\rm Re}\,s= \frac{1}{2}$. Thus,
Bender, Carl M., Brody, Dorje C
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Clifford algebras, Fourier transforms and quantum mechanics [PDF]
, 2012 In this review, an overview is given of several recent generalizations of the Fourier transform, related to either the Lie algebra sl_2 or the Lie superalgebra osp(1|2).
De Bie, Hendrik
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Dynamic impedance modeling of an alkaline electrolyzer for hydrogen production
Zhejiang dianli, 2023 Modeling of the hydrogen production systerm is of great significance to energy consumption reduction and the study of the interaction characteristics of different flows in integrated energy systems.
ZHANG Hanbing +6 more
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Spectral analysis and the death of value investing
Cogent Economics & Finance, 2021 This study explores the redundancy of the value premium by conducting a Fourier analysis. The results illustrate periodicity in the value premium and merges the Adaptive Market Hypothesis with the Efficient Market hypothesis.
John-Morgan Bezuidenhout +1 more
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