Shaft position sensing is an essential part of switched reluctance (SR) motor drive In order to synchronize the pulses of phase current with the period of rising inductance of the proper motor phase. Direct sensors such as, Hall effect and optical encoder are commonly used in SR motors. The purpose of this paper is to present an indirect shaft positioning sensing known as "sensorless " control ...

This paper presents a sensorless system drive on primary flux oriented control (PFOC) and secondary flux oriented control (SFOC) for the linear induction motor (LIM) with taking into account end effect. Extended kalman filter (EKF) is applied to estimate LIM speed by measuring motor voltages and currents. In order to achieve desirable dynamic and robustness motor performance instead of traditio...

Introduction: Motor behavior and coordination impairment are known side effects of opioid treatment, yet very few studies have investigated the effects of tramadol on motor behavior, or compared its effect with the effect of an opioid. This study investigates the effects of chronic injection of morphine and tramadol on rat motor function during infancy. Methods: Neonate rats (n=56) were rand...

Objectives: The aim of this study was to compare the fine motor development between Low Birth Weight (LBW) infants and Normal Birth Weight infants (NBW) at the age of 8-12 months by using the Peabody Developmental Motor Scale-2 (PDMS-2) . Methods: This was a non experimental and cross sectional study which was conducted on the 18 LBW infants and 14 normal infants. By referring to the profile...

Objectives: Developmental Coordination Disorder (DCD) is a motor skill disorder which impacts upon a child, s ability to perform age-appropriate activity of daily living and academic performance. They have problems in gross & fine motors, their upper limb coordination are impaired, too. In this way, we decided to compare motors skills with BOTMP test in children with DCD and their normal peers....

objective(s): parkinson's disease (pd) is a progressive neurological disorder associated with motor disabilities and cognitive dysfunction as well. evidence indicates that pd occurs less frequently in women than men, confirming a role for steroid hormones in protection of dopaminergic nigrostriatal neurons. it is reported that soy genistein, an estrogen agonist phytoestrogen, display neuro...

introduction: the aim of this study was to assess of both implicit and explicit motor sequence learning in children with attention deficit hyper activity disorder (adhd) and typical peers , by serial reaction time task. materials and methods: the sample size for each group was 12. the study sample was included 24 children with adhd, in explicit learning group and implicit learning group.  and 2...

objectives: most definitions equate quality of life with motor function. the aim of this study is to examine the association between gross motor function and quality of life for children with cerebral palsy. methods: in this analytical cross–sectional study, 60 children with cerebral palsy aged 4-12 were selected through convenience sampling based on inclusion criteria from occupational therapy...