Results 61 to 70 of about 2,352 (209)

Revisiting the Growth–Forest Sustainability Nexus in India: The Role of Human Capital, Energy, and Trade

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

On the properties for families of function classes over harmonic intervals and their embedding relation with Besov spaces

Қарағанды университетінің хабаршысы. Математика сериясы
The article is dedicated to the issues of studying the approximation of functions by trigonometric polynomials with a spectrum from special sets. In this paper, these special sets are harmonic intervals.
G.A. Yessenbayeva, L.A. Serikova
doaj   +1 more source

APPROXIMATION PROPERTIES OF SOME DISCRETE FOURIER SUMS FOR PIECEWISE SMOOTH DISCONTINUOUS FUNCTIONS

Проблемы анализа, 2019
Denote by Ln, N (f, x) a trigonometric polynomial of order at most n possessing the least quadratic deviation from f with respect to the system  tk = u + 2πk N N−1 k=0 , where u ∈ R and n 6 N/2.
G. G. Akniyev
doaj   +1 more source

Recognition of Spatiotemporal Feature Images of Zero‐Sequence Voltage for Single‐Phase High‐Impedance Ground Faults Under Complex Conditions

High Voltage, EarlyView.
ABSTRACT Diagnosing high‐impedance ground faults (HIGFs) in distribution networks is extremely challenging because high transition resistance significantly reduces electrical signal strength and unpredictable initial fault phase angles coupled with asymmetric voltage disturbances often lead to misclassification.
Zhengyang Li, Yijia Cao, Chun Chen, Weiyu Wang, Yansha Li, Jinglu Li   +5 more
wiley   +1 more source

Simultaneous approximation by polynomials in Orlicz spaces generated by quasiconvex Young functions

Kuwait Journal of Science, 2016
In this paper we prove some theorems on simultaneous approximation by trigonometric or algebraic polynomials in Orlicz spaces constructed by Young functions belonging to a reasonably wide class.
huseyin koc
doaj  

Approximation of Signals (Functions) by Trigonometric Polynomials in Lp-Norm

International Journal of Mathematics and Mathematical Sciences, 2014
Mittal and Rhoades (1999, 2000) and Mittal et al. (2011) have initiated a study of error estimates En(f) through trigonometric-Fourier approximation (tfa) for the situations in which the summability matrix T does not have monotone rows.
M. L. Mittal, Mradul Veer Singh
doaj   +1 more source

DISCRETE LEAST SQUARES APPROXIMATION OF PIECEWISE-LINEAR FUNCTIONS BY TRIGONOMETRIC POLYNOMIALS

Проблемы анализа, 2017
Let N be a natural number greater than 1. Select N uniformly distributed points t_k = 2πk/N (0 ≤ k ≤ N − 1) on [0, 2π]. Denote by L_{n,N} (f) = L_{n,N} (f, x) (1 ≤ n ≤ N/2) the trigonometric polynomial of order n possessing the least quadratic deviation ...
G. G. Akniyev
doaj   +1 more source

Uncovering hidden bias in neutron diffraction residual strain measurements

Journal of Applied Crystallography, EarlyView.
This work demonstrates that diffraction‐based residual strain calculations and uncertainty estimates depend on how grain populations are sub‐sampled, with important implications for interpreting residual stresses in heterogeneous materials with fine‐scale microstructure and strain gradients.When calculating residual strain via neutron or X‐ray ...
Cole Franz, Michael Prime, Jeffrey Bunn, Andrew Payzant, Katharine Page   +4 more
wiley   +1 more source

Origin and application of the Lorentz factor in X‐ray diffraction

Acta Crystallographica Section A, EarlyView.
This review treats the role of the Lorentz factor in quantitative analysis of X‐ray diffraction data. The origin of the Lorentz factor, its derivation and practical implementations for a variety of modern X‐ray diffraction methods are discussed.The Lorentz factor is a fundamental correction factor in quantitative analysis of X‐ray diffraction ...
Fabian Gasser, Josef Simbrunner, Guillaume Freychet, Nicola Demitri, Václav Holý, Roland Resel   +5 more
wiley   +1 more source

Area of origin analysis for expirated patterns using HemoVision

Journal of Forensic Sciences, EarlyView.
Abstract Although bloodstain pattern analysis (BPA) can be performed on various types of patterns, there is a lack of research looking into whether the area of origin (AO) can be determined for expirated patterns. Expirated patterns are formed when blood is pushed out of an opening in the body by the force of air, in some cases forming a pattern of ...
Lathursha Kalaranjan, Eugene Liscio
wiley   +1 more source