Results 11 to 20 of about 391,352 (330)

Entropy of pseudo-random-number generators [PDF]

open access: yesPhysical Review E, 2004
4 pages, 4 ...
Mertens, Stephan, Bauke, Heiko
openaire   +3 more sources

Approximation and entropy numbers of composition operators

open access: yesConcrete Operators, 2020
We give a survey on approximation numbers of composition operators on the Hardy space, on the disk and on the polydisk, and add corresponding new results on their entropy numbers, revealing how they are different.
Li Daniel   +2 more
doaj   +1 more source

Numerical Study of Entropy Generation in a Vertical Square Channel Packed with Saturated Porous Media [PDF]

open access: yesEngineering and Technology Journal, 2011
Entropy generation in a vertical square channel packed with saturated porous media, and subjected to differentially heated isothermal walls has been numerically investigated.
Abdulhassan A. Karamallah   +2 more
doaj   +1 more source

Study of the reverse transition in pipe flow

open access: yesScientific Reports, 2023
In the reverse transition in pipe flow, turbulent flow changes to less disturbed laminar flow. The entropy of the flow appears to decrease. This study examined the reverse transition experimentally and theoretically using entropy change and momentum ...
Hikaru Yokoo   +4 more
doaj   +1 more source

Effect of a Magnetic Quadrupole Field on Entropy Generation in Thermomagnetic Convection of Paramagnetic Fluid with and without a Gravitational Field

open access: yesEntropy, 2017
Entropy generation for a paramagnetic fluid in a square enclosure with thermomagnetic convection is numerically investigated under the influence of a magnetic quadrupole field. The magnetic field is calculated using the scalar magnetic potential approach.
Er Shi   +3 more
doaj   +1 more source

MHD mixed convection and entropy generation of CNT-water nanofluid in a wavy lid-driven porous enclosure at different boundary conditions

open access: yesScientific Reports, 2022
In this study, Galerkin Finite Element Method or GFEM is used for the modeling of mixed convection with the entropy generation in wavy lid-driven porous enclosure filled by the CNT-water nanofluid under the magnetic field. Two different cases of boundary
Hameed K. Hamzah   +2 more
doaj   +1 more source

Salem numbers of automorphisms of K3 surfaces with Picard number $4$

open access: yesComptes Rendus. Mathématique, 2023
We construct automorphisms of positive entropy of K3 surfaces of Picard number $4$ with certain Salem numbers. We also prove that there is a fixed point free automorphism of positive entropy on a K3 surface of Picard number $4$ with Salem degree $4$.
Lee, Kwangwoo
doaj   +1 more source

Thermal Lattice Boltzmann Simulation of Entropy Generation within a Square Enclosure for Sensible and Latent Heat Transfers

open access: yesApplied Sciences, 2015
This paper deals with the numerical simulation of heat transfer and entropy generation in a 2D square enclosure for convective melting. A thermal lattice Boltzmann method (TLBM) is used to handle the study, which has been conducted for Prandtl numbers ...
Alissar Yehya, Hassane Naji
doaj   +1 more source

Entanglement through conformal interfaces [PDF]

open access: yes, 2008
We consider entanglement through permeable interfaces in the c=1 (1+1)-dimensional conformal field theory. We compute the partition functions with the interfaces inserted. By the replica trick, the entanglement entropy is obtained analytically.
70321   +3 more
core   +2 more sources

Entropy Generation Due to Laminar Incompressible Forced Convection Flow Through Parallel-Plates Microchannel

open access: yesEntropy, 2004
: The entropy generation due to steady laminar forced convection fluid flow through parallel plates microchannel is investigated numerically. The effect of Knudsen, Reynolds, Prandtl, Eckert numbers and the nondimensional temperature difference on ...
Mohammad Al-Nimr   +2 more
doaj   +1 more source

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