Results 1 to 10 of about 153,050 (234)

Understanding Vaccine Hesitancy in Vietnamese Fish Farmers

open access: yesAntibiotics, 2022
(1) Background: Antibiotic (AB) usage in food animals is a significant contributor to antimicrobial resistance (AMR). Vaccination can reduce the over-use of AB treatment.
Julie A. Chambers   +5 more
doaj   +1 more source

Vector weighted Stirling numbers and an application in graph theory

open access: yesElectronic Journal of Graph Theory and Applications, 2021
We introduce \textit{vector weighted Stirling numbers}, which are a generalization of ordinary Stirling numbers and restricted Stirling numbers. Some relations between vector weighted Stirling numbers and ordinary Stirling numbers and some of their ...
Fahimeh Esmaeeli   +2 more
doaj   +1 more source

A Comprehensive Review on Stirling Engines

open access: yesEngineering Perspective, 2023
Stirling engines work with all kinds of heat sources thanks to the external heat supply. It has many advantages over internal combustion engines, especially in terms of noise emissions and pollutant emissions. Since the first Stir-ling engine invented by
Turan Alp Arslan, Tolga Kocakulak
doaj   +1 more source

On identities involving generalized harmonic, hyperharmonic and special numbers with Riordan arrays

open access: yesSpecial Matrices, 2021
In this paper, by means of the summation property to the Riordan array, we derive some identities involving generalized harmonic, hyperharmonic and special numbers.
Koparal Sibel, Ömür Neşe, Duran Ömer
doaj   +1 more source

Normal ordering of degenerate integral powers of number operator and its applications

open access: yesApplied Mathematics in Science and Engineering, 2022
The normal ordering of an integral power of the number operator in terms of boson operators is expressed with the help of the Stirling numbers of the second kind. As a ‘degenerate version’ of this, we consider the normal ordering of a degenerate integral
Taekyun Kim, Dae San Kim, Hye Kyung Kim
doaj   +1 more source

Experimental and Numerical Study of a Microcogeneration Stirling Unit under On–Off Cycling Operation

open access: yesEnergies, 2021
Stirling units are a viable option for micro-cogeneration applications, but they operate often with multiple daily startups and shutdowns due to the variability of load profiles.
Gianluca Valenti   +5 more
doaj   +1 more source

Generalized degenerate Bernoulli numbers and polynomials arising from Gauss hypergeometric function

open access: yesAdvances in Difference Equations, 2021
A new family of p-Bernoulli numbers and polynomials was introduced by Rahmani (J. Number Theory 157:350–366, 2015) with the help of the Gauss hypergeometric function.
Taekyun Kim   +4 more
doaj   +1 more source

A Faster and More Accurate Algorithm for Calculating Population Genetics Statistics Requiring Sums of Stirling Numbers of the First Kind

open access: yesG3: Genes, Genomes, Genetics, 2020
Ewen’s sampling formula is a foundational theoretical result that connects probability and number theory with molecular genetics and molecular evolution; it was the analytical result required for testing the neutral theory of evolution, and has since ...
Swaine L. Chen, Nico M. Temme
doaj   +1 more source

Stirling Numbers of Uniform Trees and Related Computational Experiments

open access: yesAlgorithms, 2023
The Stirling numbers for graphs provide a combinatorial interpretation of the number of cycle covers in a given graph. The problem of generating all cycle covers or enumerating these quantities on general graphs is computationally intractable, but recent
Amir Barghi, Daryl DeFord
doaj   +1 more source

Effects of different working gases on the heat transfer enhancement performance of a heating tube with spiral insert under oscillatory flow

open access: yesEnergy Reports, 2023
The working gas type had an important effect on the heat transfer performance of the turbulence device in the heater of Stirling engine, but the related researches were scarce, especially under the oscillatory flow.
Feng Xin   +4 more
doaj   +1 more source

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