Main flux saturation in induction machines plays an important role in a number of operating regimes and therefore has to be accounted for in the process of modelling. The current state space model of a saturated induction machine has gained substantial popularity recently as an excellent tool for transient and steady-state time domain analysis of induction motor drives when the main flux satura...

Currently, production of porous polymeric membranes for filtration is predominated by the phase-separation process. However, this method has reached its technological limit, and there have been no significant breakthrough over the last decade. Here we show, using polyvinylidene fluoride as a sample polymer, a new concept of membrane manufacturing by combining oriented green solvent crystallizat...

This paper describes a speed sensorless vector control method of the torque for cost-effective parallel-connected dual induction motor fed by a single inverter. A natural observer with load torque adaptation is employed to estimate the speeds of the same rating induction motors connected in parallel and fed by a single inverter. The speed difference between the two induction motors for unbalanc...

The survival and proliferation of cells and organisms require a highly coordinated allocation of cellular resources to ensure the efficient synthesis of cellular components. In particular, the total enzymatic capacity for cellular metabolism is limited by finite resources that are shared between all enzymes, such as cytosolic space, energy expenditure for amino-acid synthesis, or micro-nutrient...

This article investigates the physics that is responsible for creating the outgoing Poynting flux emanating from the ergosphere of a rotating black hole in the limit that the magnetic energy density greatly exceeds the plasma rest mass density (magnetically dominated limit). The underlying physics is derived from published 3-D simulations that obey the general relativistic equations of perfect ...

There has been a growing concern recently about energy use and its adverse impact on the environment. Industrial motor uses a major fraction of total industrial energy uses. Conventional ceiling and table fans have the potential to improve on energy efficiency, but the enhancements described in this research study increase the device’s efficiency further, thereby permitting greater energy savin...

BACKGROUND Students' selection of a specialty is an important decision in their career as a physician. While distinguishing primary care physicians from non-primary care specialists has served a purpose for how medicine is practiced and managed, considering alternative ways of grouping specialties is appropriate when exploring specialty decisions. PURPOSE This study explored how early special...

Citation Gustavsson, Simon et al. " Noise correlations in a flux qubit with tunable tunnel coupling. " Physical Review B 84 (2011): n. pag. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits ...