Results 11 to 20 of about 1,074,944 (261)

Experimental Analysis of the Shot Peening Particle Stream Using Particle Tracking and Digital Image Correlation Techniques [PDF]

open access: yes, 2020
The conventional air pressure shot peening process consists of multiple impacts of particles propelled with pressurized air through a nozzle at the surface of mechanical components.
KUBLER, R.F.   +6 more
core   +1 more source

Dynamics of cavity structures and wall-pressure fluctuations associated with shedding mechanism in unsteady sheet/cloud cavitating flows

open access: yesFlow, 2023
The physics and mechanism of sheet/cloud cavitation in a convergent–divergent channel are investigated using synchronized dynamic surface pressure measurement and high-speed imaging in a water tunnel to probe the cavity shedding mechanism.
Changchang Wang, Mindi Zhang
doaj   +1 more source

Monitoring carbon dioxide to quantify the risk of indoor airborne transmission of COVID-19

open access: yesFlow, 2021
A new guideline for mitigating indoor airborne transmission of COVID-19 prescribes a limit on the time spent in a shared space with an infected individual (Bazant & Bush, Proceedings of the National Academy of Sciences of the United States of America ...
Martin Z. Bazant   +5 more
doaj   +1 more source

Theoretical modelling of the three-dimensional wake of vertical axis turbines

open access: yesFlow, 2021
Vertical axis turbine (VAT) arrays can achieve larger power generation per land area than their horizontal axis counterparts, due to the positive synergy from clustering VATs in close proximity.
Pablo Ouro, Maxime Lazennec
doaj   +1 more source

Can Analytic Theology be Phenomenological?

open access: yes, 2022
The present essay is concerned with the question of whether analytic theology can be properly phenomenological. Both analytic theology and phenomenology are defined by reference to leading practitioners of both, and responses are given to objections to ...
Nemes, Steven
core   +1 more source

Supersymmetry and eigensurface topology of the planar quantum pendulum

open access: yesFrontiers in Physics, 2014
We make use of supersymmetric quantum mechanics (SUSY QM) to find three sets of conditions under which the problem of a planar quantum pendulum becomes analytically solvable.
Burkhard eSchmidt, Bretislav eFriedrich
doaj   +1 more source

Fracture Mechanics Characterization of an AnisotropicGeomaterial [PDF]

open access: yes, 2012
Argillites are considered worldwide as potential host rock for high level radioactive waste given the low permeability and strong adsorption potential.
Cravero, Masantonio   +9 more
core   +1 more source

On the Classical Limit of Quantum Mechanics [PDF]

open access: yes, 2008
Contrary to the widespread belief, the problem of the emergence of classical mechanics from quantum mechanics is still open. In spite of many results on the ¯h → 0 asymptotics, it is not yet clear how to explain within standard quantum mechanics the ...
Allori, Valia, Zanghi, Nino
core   +1 more source

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

open access: yesRevista 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

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