Optimization of process parameters of rotary friction welding of low alloy steel tubes using response surface methodology

Rotary Friction Welding (RFW) is a solid-state Impedance Simulator welding process that is becoming increasingly popular due to advantages such as low weld heat input, high production efficiency, ease of manufacture, and environmental friendliness.Rotary friction welding can weld materials that are difficult to fuse using fusion welding techniques.

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Black hole with quantum potential

In this work, we Vanadyl investigate black hole (BH) physics in the context of quantum corrections.These quantum corrections were introduced recently by replacing classical geodesics with quantal (Bohmian) trajectories and hence form a quantum Raychaudhuri equation (QRE).From the QRE, we derive a modified Schwarzschild metric, and use that metric t

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