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Optimizing UV Nanoimprinting to be Defect Free

Computer simulations could help to create defect-free micro- and nanostructured patterns on surfaces through ultraviolet (UV) nanoimprinting. ....

Susha Cheriyedath , Eugenock Shutterstock , Samudrapom Dammar , Nano Materials , Finite Element Simulations , Image Credit ,

"Dependancy of Three Phase Induction Motor Derating Aspects on Complex " by P. Sudasinghege, U. Jayatunga et al.

It is well known that three-phase induction motors have to be derated in the presence of supply voltage unbalance (negative sequence) exceeding a stipulated limit of 1% based on several widely used standards. Generally, voltage unbalance limits are decided based on the magnitude of negative sequence voltage unbalance factor which is quantified as the ratio of negative sequence voltage to positive sequence voltage. However, a specified voltage unbalance magnitude can arise as a result of numerous possibilities of the three phase supply voltages. Therefore, it is hypothesised that the current derating curve, which defines a derating factor that is dependent on the magnitude of the voltage unbalance, is not optimal and may not be economical and/or safe for some voltage unbalance conditions. To examine the validity of this hypothesis, modelling and experimental validation need to be carried out considering motor losses and temperature rise which are the main factors that help determine the ....

Complex Voltage Unbalance Factor , Ouble Chamber Calorimeter , Finite Element Simulations , Heating Systems , Induction Motors , Oss Measurement , Temperature Measurement , Temperature Rise , Hree Phase Induction Motor Derating , Orque Ripple , Voltage Unbalance ,