Induction motor drives using field oriented control (FOC) for torque and flux control have been used in high performance industrial applications instead of dc motors for many years. In FOC, torque and flux of an induction motor can be controlled independently by decoupling the stator current into its orthogonal components. The FOC method has achieved a quick torque response. But in order to ach...

The electrical conductivity and the thermal performance of the films made of reduced graphene oxide (rGO) spray-coated on polycarbonate substrate were investigated. The electrical conductivity and the transmittance of 10 times spray coated film made from the solution with 0.08 wt% of rGO, 0.16 wt% of surfactant were 30 komega/sq and 64%, respectively. The steady-state temperature of the films i...

This paper sought to evaluate the influence of entrepreneurial education on informal entrepreneur’s intention formalise. A positivist approach was employed backed by quantitative analysis determine impact formalise businesses. The study analysed a sample 265 traders and structured questionnaire used gather data. Collected data using parameters such as regression Pearson correlation analysis. re...

Abstract The machinability of Ti-6Al-4V alloy has been a constant challenge in the industry, although material is widely used aerospace and medical industries due to its mechanical properties, particularly strength-to-weight ratio. current research presents hybrid laser- ultrasonic-assisted machining (LUAM) technique improve turning process. This compared with (UAM), laser-assisted (LAM), conve...

Replication of natural mixing through artificial water circulation techniques, such as convectional systems (CWCS), can break thermal stratification in stagnant and suppress algal blooms. Here, the field performance a novel CWCS was evaluated eutrophic reservoir (Shingal reservoir, South Korea) for three seasons between September 2016 2018. The deployed corner stagnated reservoir. changes tempe...

The Ohmic heating rate of a food is highly influenced by its electrical conductivity. In this study, electrical conductivities, colour changes and system performance of liquid whole egg, white egg and yolk were determined on a laboratory scale static Ohmic heater by applying 30 V/cm voltage gradient. The samples were heated from room temperature through to pasteurization temperature (19 – 60°C)...

Energy transfer in mixed convection unsteady magnetohydrodynamic (MHD) flow of an incompressible nanofluid inside a channel filled with saturated porous medium is investigated. The channel with non-uniform walls temperature is taken in a vertical direction under the influence of a transverse magnetic field. Based on the physical boundary conditions, three different flow situations are discussed...

The study presented the design of an efficient motorized antenna positioning control system using Model Following Control (MFC). It was desired to a improve stability and reduce position error. dynamic model direct current (DC) servomotor developed achieve this. An MFC designed that integrated Proportional Integral Derivative (PID) controller in frequency domain for tuning loop terms transient ...