Results 31 to 40 of about 11,458 (152)

Leonhard Euler's “principle of mechanics” (an essay on the foundations of the equations of motion)

Revista Brasileira de Ensino de Física
Leonhard Euler derived equations of motion for both (in modern terminology) point mass mechanics and analytic mechanics. In order to derive the equations, some dynamic premise has to be introduced; this is the “principle of mechanics”.
Penha Maria Cardozo Dias
doaj   +1 more source

Sandwich Results for Holomorphic Functions Related to an Integral Operator

Fractal and Fractional
In this paper, we introduce a new logarithmic integral operator that unifies differentiation and fractional integration within the complex domain. The present work addresses this gap by applying the proposed operator to analytic functions represented by ...
Amal Mohammed Darweesh, Adel Salim Tayyah, Sarem H. Hadi, Alina Alb Lupaş   +3 more
doaj   +1 more source

Thermal bootstrap of matrix quantum mechanics

Journal of High Energy Physics
We implement a bootstrap method that combines stationary state conditions, thermal inequalities, and semidefinite relaxations of matrix logarithm in the ungauged one-matrix quantum mechanics, at finite rank N as well as in the large N limit, and ...
Minjae Cho, Barak Gabai, Joshua Sandor, Xi Yin   +3 more
doaj   +1 more source

Digital twin of a large-aspect-ratio Rayleigh–Bénard experiment: role of thermal boundary conditions, measurement errors and uncertainties

Flow
Albeit laboratory experiments and numerical simulations have proven themselves successful in enhancing our understanding of long-living large-scale flow structures in horizontally extended Rayleigh–Bénard convection, some discrepancies with respect to ...
Philipp P. Vieweg, Theo Käufer, Christian Cierpka, Jörg Schumacher   +3 more
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A review on vortex dynamics in the healthy and dilated left ventricles and its application to heart health

Flow
Many cardiovascular diseases occur due to an abnormal functioning of the heart. A diseased heart leads to severe complications and in some cases death of an individual.
Mahesh S. Nagargoje, Eneko Lazpita, Jesús Garicano-Mena, Soledad Le Clainche   +3 more
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Applications of the vortex-surface field to flow visualization, modelling and simulation

Flow, 2023
We review the progress on the applications of the vortex-surface field (VSF). The VSF isosurface is a vortex surface consisting of vortex lines. Based on the generalized Helmholtz theorem, the VSF isosurfaces of the same threshold at different times have
Yue Yang, Shiying Xiong, Zhen Lu
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Unsteady flow behaviour of multi-rotors in ground proximity

Flow, 2023
The unsteady flow behaviour of two side-by-side rotors in ground proximity is experimentally investigated. The rotors induce a velocity distribution interacting with the ground causing the radial expansion of the rotor wakes.
Hasse N.J. Dekker, Woutijn J. Baars, Fulvio Scarano, Marthijn Tuinstra, Daniele Ragni   +4 more
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Shaping liquid films by dielectrophoresis

Flow, 2021
We present a theoretical model and experimental demonstration of thin liquid film deformations due to a dielectric force distribution established by surface electrodes. We model the spatial electric field produced by a pair of parallel electrodes and use
Israel Gabay, Federico Paratore, Evgeniy Boyko, Antonio Ramos, Amir D. Gat, Moran Bercovici   +5 more
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Solidity effects on the performance of vertical-axis wind turbines

Flow, 2021
The variety of configurations for vertical-axis wind turbines (VAWTs) make the development of universal scaling relationships for even basic performance parameters difficult.
Mark A. Miller, Subrahmanyam Duvvuri, Marcus Hultmark   +2 more
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Analytic continuation of stochastic mechanics [PDF]

Journal of Mathematical Physics, 2022
We study a (relativistic) Wiener process on a complexified (pseudo-)Riemannian manifold. Using Nelson’s stochastic quantization procedure, we derive three equivalent descriptions for this problem. If the process has a purely real quadratic variation, we obtain the one-sided Wiener process that is encountered in the theory of Brownian motion.
openaire   +2 more sources