Results 121 to 130 of about 48,460 (203)

Approximation of Discontinuous Functions by Positive Linear Operators. A Probabilistic Approach

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 5, Page 4184-4197, 30 March 2026.
ABSTRACT We obtain approximation results for general positive linear operators satisfying mild conditions, when acting on discontinuous functions and absolutely continuous functions having discontinuous derivatives. The upper bounds, given in terms of a local first modulus of continuity, are best possible, in the sense that we can construct particular ...
J.A. Adell   +2 more
wiley   +1 more source

Homogeneous Observer‐Based Affine Formation Tracking

open access: yesInternational Journal of Robust and Nonlinear Control, Volume 36, Issue 5, Page 2692-2704, 25 March 2026.
ABSTRACT This article addresses the control of mobile agents, termed followers, to track a time‐varying affine formation specified by a set of leaders. We present a distributed hierarchical method composed of a homogeneous high‐order sliding mode observer and a tracking controller. The observer estimates the followers' target trajectories from neighbor
Rodrigo Aldana‐López   +3 more
wiley   +1 more source

A TRANSATLANTIC PERSPECTIVE ON POPULISM(S): WHAT’S GOING ON?

open access: yesRevista Internacional de Pensamiento Político, 2018
This paper addresses the similarities and differences between forms of populism in Europe and Trumpism. It evaluates three factors that are commonly perceived as explaining recent events, such as Brexit and the election of election of Donald Trump: a ...
Ariane Chebel d’Appollonia
doaj  

Enhancement of power transformer state of health diagnostics based on fuzzy logic system of DGA [PDF]

open access: yes, 2019
Aburaghiega, Ehnaish   +3 more
core   +1 more source

Homologically Smooth Connected Cochain DGAs

open access: yesAlgebras and Representation Theory
arXiv admin note: substantial text overlap with arXiv:1301 ...
openaire   +2 more sources

Frontal‐Driven Water‐Mass Transformation in a Western Boundary Current: Evidence From the Yucatan Current

open access: yesGeophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract We report the recurrent formation of waters with thermohaline properties similar to Gulf Common Water (GCW) in the western Yucatan Channel, absent upstream in the Caribbean. Mooring observations and a partial submesoscale‐resolving model show that these Yucatan GCW forms locally when the Yucatan Current separates from the slope, intensifying a
Giovanni Durante   +7 more
wiley   +1 more source

Traditional fault diagnosis methods for mineral oil‐immersed power transformer based on dissolved gas analysis: Past, present and future

open access: yesIET Nanodielectrics
A key factor in ensuring the efficient and safe operation of power transformers is the early and accurate diagnosis of incipient faults. Among the tools available to achieve this goal, dissolved gas analysis (DGA) is widely used by power transformers ...
Arnaud Nanfak   +5 more
doaj   +1 more source

The new Dietary Guidelines for Americans: When national nutritional policy outpaces the evidence. [PDF]

open access: yesAm J Prev Cardiol
Gulati M   +3 more
europepmc   +1 more source

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