Abstract The Alcubierre warp drive is an exotic solution in general relativity. It allows for superluminal travel at the cost of enormous amounts matter with negative mass density. For this reason, has been widely considered unphysical. In study, we develop a model spacetime classical relativity that encloses all existing definitions and new metrics without most serious issues present solution....

1. Rodger D. Current status and future plans for electric motors drives at NASA. IEEE International Electric Motors Drives Conference. 2021. Google Scholar

IT students have unique workstation requirements that include complete control of a computer and its configuration, resulting in setups that are often incompatible with other uses of the lab. For example, the system integration and administration thrusts of the IT curricula require that a student be trained week after week on his own system, with his own software installation, configuration and...

In this paper, computer simulation of a three-phase synchronous motor drive is described. This drive/system is supplied with a new type of pulse-width modulated voltage source inverter (PWM VSI) whose amplitude of the first harmonic, compared to a conventional sinusoidal PWM VSI, is increased by about 17% and whose amplitude of higher harmonics is also reduced inversely proportional to their or...