<b>Background:</b> Pulsed field ablation (PFA) is a new type of physical energy source in the fields tumor and atrial fibrillation ablation, based on irreversible electroporation with non-thermal, clear boundaries, selective killing, rapid advantages. PFA induces changes electrical conductivity zone, which can be described by step function used to predict zone. However, current rese...

Bed shear stress in coarse–bed rivers with vegetation patches is one of the challenging parameters hydraulic engineering, mechanical fluvial morphology, and environmental studies. Based on this necessity, study, values bed four reaches Iran were estimated compared using methods boundary layer characteristics, logarithmic law, Darcy–Weisbach. Data collection study started February 2021 ended Apr...

Spherical microphone arrays have been used for source localization in three-dimensional space recently. In this paper, a two-stage algorithm is developed to localize mixed far-field and near-field acoustic sources in free-field environment. In the first stage, an array signal model is constructed in the spherical harmonics domain. The recurrent relation of spherical harmonics is independent of ...

We use the discrete kinetic theory with the free-orientation parameter being fixed (π/4) to derive the macroscopic velocity field for many particles flowing through a microdomain. Our results resemble qualitatively other hydrodynamical solutions. The V-shaped velocity field changes as the dominant physical parameter (Knudsen number) varies. We also briefly discuss the possible mechanism due to ...

fracture system in carbonate reservoirs is very complex. understanding the features of fractures such as dip, strike and the other parameters can help to distinguish the behaviour of reservoir in any exploration and production plan. image log is the best way to investigate feature planes like fracture and bedding. image log in one of drilled well #10x393 of bangestan reservoir in gachsaran oilf...