in this paper, a neural network model reference adaptive system speed observer is designed, which can be used in speed control of linear induction motors (lims). dynamical equations of lim have been considered accurate. in other words, the end effect and the electrical losses of the motor have been included in the motor equivalent circuit. then equations of the reference model and adaptive mode...

the case is 43 years old woman referred to emergency department of our hospital with quadriplegia and severe respiratory insufficiency due to c5-c6 injury after falling. she discharged from icu after fixation of the lesion and successful weaning. we evaluated electrical activity of diaphragm signal (edi), respiratory drive (p100) during one month period. we detected increase in level of electri...

in this study, the effect of cold rolling process on the microstructure and texture evolution in 1wt. % si non-orientedelectrical steel was investigated. for this purpose, all samples were processed through single-stage hot rolling at1100 ° c and two-stage cold rolling (cross rolling and unidirectional rolling) with intermediate annealing at 650 °cfor 35 seconds. finally, all of them were fully...

Background: The interaction between antiepileptic drugs and brain electrical stimulation is a potential therapy to control of seizures in patient with pharmacoresistance to drugs. So, the aim of present study was designed to determine the effect of a sub effective dose of sodium valproate combined with low-frequency electrical stimulation during kindling. Material and Methods: One tripolar ele...

previous studies have shown that electrical stimulation (es) increases blood flow, but the exact mechanisms are not clear. the present study was designed to clarify some of the underlying mechanisms involved in this phenomenon. white adult rabbits lt.-6 months old were used. animals were anesthetized by sodium pentobarbital (40 mg/kg, iv) and skin blood flow in the thoracic back was recorded us...

in this paper electrical conductivity measurements and optical investigations takes place in aot/ heptane/ (water or aqueous) systems. the water in oil system prepared with adding water in 50% by weight of aot/ heptane solution.  in other systems instead of water, aqueous solutions of 1) zinc acetate and water 2) potassium hydroxide and water were used. in each phase, the trend of the electrica...

water scarcity, its necessity in food production, and environmental protection in the world have forced human beings to seek new water sources. nowadays, application of unconventional water resources (wastewater) has been proposed in countries facing the crisis of water resources shortage; however, a few studies have dealt with this issue. the present study has evaluated the changes in the elem...

background: in this study, an electroscrubber was designed and experimented for e valuation of integrating particle and droplet charging effects separately and jointly on collection efficiency of a spray tower and also to discover the optimal condition. methods: a homogenous concentration of relatively fine particles was introduced to influent air stream and electroscrubber efficiency in purify...