Results 31 to 40 of about 4,676,398 (193)
Energy Science &Engineering, EarlyView.A real‐time power quality disturbance generator is developed using virtual instrumentation based on LabVIEW and NI MyDAQ. The system generates IEEE‐standard PQ events with controllable noise and harmonics. Measurement uncertainty analysis confirms its reliability for realistic testing of Power Quality Disturbance detection and classification algorithms.
Abdullah Saud +5 more
wiley +1 more source
Современная математика: Фундаментальные направленияWe consider a non-self-adjoint ordinary differential operator defined on a finite interval by an \( n \)th-order linear differential expression with a nonzero coefficient of the \( (n-1) \)th derivative and two-point Birkhoff regular boundary conditions.
V. S. Rykhlov
doaj +1 more source
FinTech and Environmental Sustainability: Evidence From Brazil
Sustainable Development, EarlyView.ABSTRACT This study explores the dynamic interplay between economic growth and environmental sustainability from a FinTech perspective, using Brazil as a case study. While FinTech's contribution to green transformation, sustainable finance, and resource efficiency has gained increasing attention, a notable lack of empirical research remains to assess ...
Kemal Eyuboglu, Umut Uzar
wiley +1 more source
Karpatsʹkì Matematičnì Publìkacìï, 2022 We obtained the exact order estimates of the best orthogonal trigonometric approximations of periodic functions of one and several variables from the Nikol'skii-Besov-type classes $B^{\omega}_{1,\theta}$ ($B^{\Omega}_{1,\theta}$ in the multivariate case $
O.V. Fedunyk-Yaremchuk, S.B. Hembars'ka
doaj +1 more source
Tracking SDG‐7 in China, India, and Japan
Sustainable Development, EarlyView.ABSTRACT This study examines the impact of clean energy consumption on environmental quality, supporting the UN Sustainable Development Goal (SDG) 7, which aims to ensure access to clean, affordable energy for all. The Auto‐Regressive Distributed Lag (ARDL) model is used for Japan, and the Fourier ARDL for China and India, followed by a Granger ...
Arvind Goswami +3 more
wiley +1 more source
Trigonometric Interpolation Using the Discrete Fourier Transform [PDF]
, 2022 The Fourier transform (and all its versions, discrete/continuous/finite/infinite), covers deep and abstract mathematical concepts, and can easily overwhelm with detail.
Ponce Campuzano, Juan Carlos
core
Componentwise equiconvergence theorem for the Dirac operator with a summable potential [PDF]
Известия Саратовского университета. Новая серия: Математика. Механика. ИнформатикаThe article considers the Dirac operator with a summable potential on the finite interval $(a,b)$. It studies the componentwise equiconvergence of the orthogonal decomposition with a trigonometric Fourier series and finds a sufficient condition for ...
Ibadov, Elchin J.
doaj +1 more source
An Algebraic Remark on the Fourier Series of a Trigonometric Polynomial
Missouri Journal of Mathematical Sciences, 2003 In a previous note [1], we showed how to linearize trigonometric polynomials using complex numbers, Euler's formula, and DeMoivre's formula. Here we explain why this gives, in fact, the Fourier series of these trigonometric polynomials.
Cohen, Daniel, Dana-Picard, Thierry
openaire +3 more sources
Sustainable Development, EarlyView.ABSTRACT Understanding whether the interaction between economic activity and forest ecosystems manifests as conflict or synergy is central to designing effective, sustainable development policies. Although the environmental Kuznets curve framework is frequently utilized to explain this relationship, its analytical scope remains limited, as it ...
Umut Uzar, Kemal Eyuboglu
wiley +1 more source
High Voltage, EarlyView.ABSTRACT The alternate arm converter (AAC) is one of the most efficient multilevel topologies based on voltage source converters (VSCs), which has recently gained attention in various applications, particularly in high voltage direct current (HVDC) systems.
Ehsan Akbari, Milad Samady Shadlu
wiley +1 more source