نتایج جستجو برای: motor control

تعداد نتایج: 1452218  

This paper presents a new control structure to reduce torque ripple in switched reluctance motor. Although SRM possesses many advantages in motor structure, it suers from large torque ripple that causes some problems such as vibration and acoustic noise. In this paper another control loop is added and torque ripple is de ned as an objective function. By using fuzzy sliding mode strategy, the DC...

اشرف زاده, فرح, بیرقی طوسی, مهران, جعفری, علی, حیدرآبادی, سیف الله, رضائیان, اکرم, غایبی, الهه,

Background and purpose: Hypotonia and delay in gross motor are usually seen in toddlers with celiac disease. This study aimed at investigating the effect of a developmental stimulation program on toddlers’ gross motor development. Materials and methods: A clinical trial was performed in Ghaem and Doctor Sheikh hospitals, Mashhad, in which 50 children, aged 1-3 years, were randomly assi...

Journal: :رشد و یادگیری حرکتی - ورزشی 0
نصور احمدی استادیار دانشگاه شهید بهشتی محمدعلی اصلانخانی استاد دانشگاه شهید بهشتی ناصر نقدی استاد گروه فیزیولوژی و فارماکولوژی انستیتو پاستور ایران

aging has negative effects on motor and cognitive functions, so it is essential to identify appropriate strategies to prevent the decrease of motor and cognitive functions. the aim of this research was to investigate the effect of vitamin e supplement on motor activity and spatial learning in aged rats. 36 male albino – wistar aged rats were assigned to three groups of control, vitamin e and sh...

Fast and accurate transient response is the main requirement in electric machine position control. Conventional cascade control structure has sluggish response due to the limitation of inner control loop bandwidth. In this paper, in order to decrease the Permanent Magnet Synchronous Motor (PMSM) transient response time it can be used reference model using feed-forward signals. In this structure...

Farzad Ashrafi, Avid Rokni , Fatemeh Yourdkhani , Hosein Pakdaman , Sina Asaadi ,

Background: Motor function impairment occurs in approximately two-thirds of patients with subcortical stroke. Repetitive transcranial magnetic stimulation (rTMS) is a noninvasive technique for modulating cortical excitability. Objectives: The present study was designed for assessing the efficacy of high-frequency rTMS (5 Hz) on ipsilesional primary motor cortex in patients with subcortical stro...

Armaghan Moravej Aleali, Gholamreza Shamsaei, Hajieh Bibi Shahbazian, Mehdi Norouz Sarvestani, Nastaran Madjdinasab,

OBJECTIVE: Diabetes mellitus is one of the most common endocrine diseases with micro-vascular complications and is a common cause of polyneuropathy. We studied the effect of enalapril on electrophysiologic criteria and clinical symptoms of patients with type II diabetes and sensory neuropathy. MATERIALS AND METHODS: A double blind study was conducted on 45 Patients with type II diabetes and ne...

Journal: :international journal of electrical and electronics engineering 0
jafar soltanii hossein abootorabi zarchi

in this paper, the design and implementation of adaptive speed controller for a sensorless synchronous reluctance motor (synrm) drive system is proposed. a combination of well-known adaptive input-output feedback linearization (aiofl) and adaptive backstepping (abs) techniques are used for speed tracking control of synrm. the aiofl controller is capable of estimating motor two-axis inductances ...

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