In this letter, we consider static black hole in f(R) gravity.We take advantage from corrected entropy and temperature and investigate such black hole. Finally, we study the $ P - V $ critically and phase transition of corrected black hole with respect to entropy and temperature. Here also, we obtain the heat capacity for the static black hole in $ f(R) $ gravity. This calculation help us...

The tidal Love numbers of a black hole vanish, and this is often taken to imply that the hole's tidally induced multipole moments vanish also. An obstacle establishing link between these statements individual bodies are not defined in general relativity, when subjected mutual gravitational interaction. In previous publication [Phys. Rev. D 103, 064023 (2021)] I promoted view can be interaction ...

The present work aims at reducing the friction of rubber soles sliding on ceramic floorings. Fitting bored cylindrical protrusions with different diameters on rubber soles was proposed. Experiments were carried out to evaluate the performance of the proposed protrusions in increasing friction coefficient at dry and contaminated floorings. It was found that, at dry sliding, friction coefficient ...

many experimental studies have been conducted on development of the scour hole as a result of vertical jet impaction. research has shown that aeration of the nappe flow in the model is much weaker than that in the prototype. therefore, the influence of aeration on scour holes needs further study. experimental investigation of the effects of air entrainment and tail water depth on the scour hole...

We discuss the interconnection between Schwinger pair creation in electric field, Hawking radiation and particle Unruh effect. All three processes can be described terms of entropy temperature. These thermodynamic like combined. consider combined process charged electrically neutral particles which combines effects. also black white holes effect hole entropy. The obey sum rules for inverse Some...

A bstract We develop analytic techniques to construct the leading dissipative terms in a derivative expansion of holographic fluids. Our basic ingredient is Crnkovic-Witten symplectic current classical gravity which we use extract transport coefficients fluids, assuming knowledge thermodynamics and near horizon geometries bulk black hole geometries. apply our non-conformal neutral fluids reprod...

We investigate the bound orbits of massive/massless, neutral particles and photons moving around regular black holes Fan Wang. For massive particles, we show existence stable/unstable circular charge dependence radius innermost stable orbit. Remarkably, find an unstable orbit inside event horizon. massless photons, that both can exist in a horizonless spacetime with slight overcharge. Then, als...