This paper presents a new technique of compensation of the effect of variation parameters in the direct field oriented control of induction motor. The proposed method uses an adaptive tuning of the value of synchronous speed to obtain the robustness for the field oriented control. We show that this adaptive tuning allows having robustness for direct field oriented control to changes in rotor re...

We revisit the definitions of preimage resistance, focussing on the question of finding a definition that is simple enough to prove security against, yet flexible enough to be of use for most applications. We show that—counter to what was previously thought—Rogaway and Shrimpton’s notion of everywhere preimage resistance on its own does not fit this bill. We thus set out to fix the situation. O...

Electron transport properties of pure and Oxygen and/or Methyl substituted pyrene between two semi-infinite Aluminum atomic electrodes have been investigated by means of density functional theory plus the non-equilibrium green’s function method. The electrodes were represented by a slab of Al atoms oriented along the [111] plane. The computations were carried out in the bias voltage range of 0....

The Model of Motivational Dynamics (MMD; Skinner and Pitzer, 2012) infers that peers influence behavioral engagement levels, which in turn is linked to coping and resilience. Scholars, however, are yet to test the MMD among an athletic population. The purpose of this paper was to assess an a priori model that included key constructs from the MMD, such as resistance to peer influence, behavioral...

cognitive linguistics gives the most inclusive, consistent description of how language is organized, used and learned to date. cognitive linguistics contains a great number of concepts that are useful to second language learners.  if-clauses in english, on the other hand, remain intriguing for foreign language learners to struggle with, due to their intrinsic intricacies. efl grammar books are ...

Previous studies in skeletal muscle of the dog and cat have shown that venous vascular resistance changes inversely with blood flow and may be due mainly to red blood cell aggregation, a phenomenon present in these species. To determine whether red blood cell axial migration and sedimentation contribute to this effect, we viewed either vertically or horizontally oriented venules of the rat spin...

objectives: the aim of this study was to examine the prevalence of anger rumination and its relationship with coping strategies and assertiveness in students of mohaghegh ardebili university. methods: the present research was a descriptive correlational study. the study population consisted of all students enrolled in the academic year 1390-91 (n = 8344). in the first step, to determine the pre...