One of the great challenges in the processing of materials using Equal Channel Angular Pressing (ECAP) is the high forming forces required to produce large shear deformation in the material. Researchers show that the friction forces between the die and the sample constitute a great part of the total forming forces. Recently, ultrasonic vibrations are successfully implemented into the ECAP proce...

Abstract Random quantum circuits have been utilized in the contexts of supremacy demonstrations, variational algorithms for chemistry and machine learning, blackhole information. The ability random to approximate any unitaries has consequences on their complexity, expressibility, trainability. To study this property circuits, we develop numerical protocols estimating frame potential, distance b...

The use of residual current devices (RCDs) is obligatory in many types low-voltage circuits. They are that ensure protection against electric shock the case indirect contact and may additional direct contact. For latter purpose protection, only RCDs a rated operating not exceeding 30 mA suitable. Unfortunately, modem current-using equipment supplied via electronic converters with pulse width mo...

Flotation process in mechanical cells is carried out in highly turbulent conditions. In this work, the impact of impeller speed on four characteristics of the quiescent zone, i.e. zone height, turbulence, solid percentage, and gas holdup, and their relationship with the entrainment is investigated, and it is shown why at a higher impeller speed, entrainment is not significant. The height of the...