Results 31 to 40 of about 268,561 (292)

Entropy generation in condensation in the presence of high concentrations of noncondensable gases [PDF]

open access: yes, 2012
The physical mechanisms of entropy generation in a condenser with high fractions of noncondensable gases are examined using scaling and boundary layer techniques, with the aim of defining a criterion for minimum entropy generation rate that is useful in ...
Lienhard, John H., Thiel, Gregory Parker
core   +1 more source

Source-Device-Independent Ultrafast Quantum Random Number Generation [PDF]

open access: yes, 2017
Secure random numbers are a fundamental element of many applications in science, statistics, cryptography and more in general in security protocols.
MARANGON, DAVIDE GIACOMO   +2 more
core   +1 more source

Irreversibility analysis in Darcy-Forchheimer flow of viscous fluid with Dufour and Soret effects via finite difference method

open access: yesCase Studies in Thermal Engineering, 2021
Background and objective: Here irreversibility analysis in unsteady Darcy-Forchheimer flow of viscous fluid by a stretched sheet is examined. Lorentz force effect is considered.
Sohail A. Khan, T. Hayat, A. Alsaedi
doaj   +1 more source

Non-equilibrium thermodynamic analysis of double diffusive, nanofluid forced convection in microreactors with radiation effects [PDF]

open access: yes, 2017
This paper presents a theoretical investigation of the second law performance of double diffusive forced convection in microreactors with the inclusion of nanofluid and radiation effects.
Govone, Lilian   +3 more
core   +2 more sources

Nonlocal Traffic Models with General Kernels: Singular Limit, Entropy Admissibility, and Convergence Rate

open access: yesArchive for Rational Mechanics and Analysis, 2023
Nonlocal conservation laws (the signature feature being that the flux function depends on the solution through the convolution with a given kernel) are extensively used in the modeling of vehicular traffic. In this work we discuss the singular local limit, namely the convergence of the nonlocal solutions to the entropy admissible solution of the ...
Colombo M.   +3 more
openaire   +5 more sources

Optimal behavior of viscoelastic flow at resonant frequencies

open access: yes, 2004
The global entropy generation rate in the zero-mean oscillatory flow of a Maxwell fluid in a pipe is analyzed with the aim at determining its behavior at resonant flow conditions.
A. A. Lambert   +15 more
core   +1 more source

A mathematical model for entropy generation in a Powell-Eyring nanofluid flow in a porous channel

open access: yesHeliyon, 2019
The continuous generation of entropy leads to exergy destruction which reduces the performance of a physical system. Hence, entropy minimization becomes necessary.
Hammed Abiodun Ogunseye   +1 more
doaj   +1 more source

Leakage Evaluation by Virtual Entropy Generation (VEG) Method

open access: yesEntropy, 2017
Leakage through microscale or nanoscale cracks is usually hard to observe, difficult to control, and causes significant economic loss. In the present research, the leakage in a pipe was evaluated by the virtual entropy generation (VEG) method. In virtual
Zhichao Zhang   +5 more
doaj   +1 more source

Entropy Generation during Head-On Interaction of Premixed Flames with Inert Walls within Turbulent Boundary Layers

open access: yesEntropy, 2022
The statistical behaviours of different entropy generation mechanisms in the head-on interaction of turbulent premixed flames with a chemically inert wall within turbulent boundary layers have been analysed using Direct Numerical Simulation data.
Sanjeev Kr. Ghai   +3 more
doaj   +1 more source

Recommendations and illustrations for the evaluation of photonic random number generators

open access: yes, 2017
The never-ending quest to improve the security of digital information combined with recent improvements in hardware technology has caused the field of random number generation to undergo a fundamental shift from relying solely on pseudo-random algorithms
Baumgartner, Gerald B.   +5 more
core   +2 more sources

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