Results 21 to 30 of about 152,514 (291)

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

Oscillatory heat transfer correlation for annular mini channel stirling heater

open access: yesCase Studies in Thermal Engineering, 2020
Annular mini-channel Stirling heater are replacing conventional tubular heater in modern free piston Stirling engines due to reliability and manufacturing issues.
Umair Munir   +4 more
doaj   +1 more source

Dirichlet series and series with Stirling numbers

open access: yesCubo, 2023
This paper presents a number of identities for Dirichlet series and series with Stirling numbers of the first kind. As coefficients for the Dirichlet series we use Cauchy numbers of the first and second kinds, hyperharmonic numbers, derangement numbers ...
Khristo Boyadzhiev
doaj   +1 more source

An Effective Tableau System for the Linear Time µ-Calculus [PDF]

open access: yes, 1996
We present a tableau system for the model checking problem of the linear time µ-calculus. It improves the system of Stirling and Walker by simplifying the success condition for a tableau. In our system success for a leaf is determined by the path leading
Bradfield, Julian   +2 more
core   +3 more sources

The Legendre–Stirling numbers

open access: yesDiscrete Mathematics, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Andrews, G.E.   +2 more
openaire   +1 more source

Harmonic number identities via polynomials with r-Lah coefficients

open access: yesComptes Rendus. Mathématique, 2020
In this paper, polynomials whose coefficients involve $r$-Lah numbers are used to evaluate several summation formulae involving binomial coefficients, Stirling numbers, harmonic or hyperharmonic numbers.
Kargın, Levent, Can, Mümün
doaj   +1 more source

Stochastic heat engines beyond a unique definition of temperature

open access: yesPhysical Review Research, 2023
When Carnot and Stirling initially conceptualized heat engines, temperature unambiguously represented our everyday perception of cold and hot. However, as this energy scale is expanded to measure the strength of noise in general nonequilibrium heat baths,
Chia-Hao Chang   +4 more
doaj   +1 more source

Stirling engine: Construction and performance analysis at low temperatures [PDF]

open access: yesE3S Web of Conferences
Stirling engines, categorized as hot air engines, offer remarkable versatility by operating on a variety of fuel sources, which is a significant advantage in the context of energy diversification and sustainability.
Muradov Muzaffar   +3 more
doaj   +1 more source

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