Results 1 to 10 of about 14,862 (292)

Real-space diffusion theory from quantum mechanics using analytic continuation [PDF]

open access: yesHeliyon
We show that a physical correspondence between Brownian motion and quantum mechanics can be established by formal analytic continuation if Wick rotation (t→it) is replaced by the mirror symmetric, complex conjugate time transformation t→±it.
Leonardo Di G. Sigalotti   +2 more
doaj   +4 more sources

Algebraic solution for the classical harmonic oscillator

open access: yesRevista Brasileira de Ensino de Física, 2023
The harmonic oscillator is one of the most studied systems in Physics with a myriad of applications. One of the first problems solved in a Quantum Mechanics course is calculating the energy spectrum of the simple harmonic oscillator with analytic and ...
Murilo B. Alves
doaj   +1 more source

Research on simulation technology of wireless sensor in swimming mechanics

open access: yesEURASIP Journal on Wireless Communications and Networking, 2020
In order to improve the quantitative teaching level of swimming sports, it is necessary to carry out quantitative analysis of swimming sports mechanics. A method of swimming mechanics analysis based on computer simulation technology is proposed. The ARMA
Zhiwen Xu
doaj   +1 more source

Applications of the vortex-surface field to flow visualization, modelling and simulation

open access: yesFlow, 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
doaj   +1 more source

Unsteady flow behaviour of multi-rotors in ground proximity

open access: yesFlow, 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   +4 more
doaj   +1 more source

Shaping liquid films by dielectrophoresis

open access: yesFlow, 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   +5 more
doaj   +1 more source

Solidity effects on the performance of vertical-axis wind turbines

open access: yesFlow, 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   +2 more
doaj   +1 more source

Flow forth

open access: yesFlow, 2021
The study of fluid flow has enabled milestones in technology and a deeper understanding of the natural world. Existing journals cover fundamental aspects of fluid mechanics very well and other journals target specific application fields.
Juan G. Santiago
doaj   +1 more source

Accurate analytic approximations to eigenvalues anharmonic potentials x2+λx8

open access: yesResults in Physics, 2020
Precise analytic approximations have been found for the eigenvalues of the ground state in the anharmonic potentials x2+λx8. Rational functions combined with fractional powers are used to determine the new approximations.
Pablo Martin   +2 more
doaj   +1 more source

Real-time flow measurement system: physics-informed reconstruction and sampling strategy

open access: yesFlow, 2023
In this work, we focus on a multi-hole pressure-probe-based flow measurement system for wind tunnel measurements that provides real-time feedback to a robot probe-manipulator, rendering the system autonomous. The system relies on a novel, computationally
Julian Humml   +3 more
doaj   +1 more source

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