abstract background and purpose: aging is associated with brain changes and reduction in motor skill acquisi­tion that can limit its functional capacity. one of the effective interventions is using transcranial direct current stimulation (tdcs). the aim of this systematic review was to assess the effect of tdcs on learning and motor skill in healthy older adults. materials and methods: a litera...

this paper presents a method for diagnosis of eccentricity fault in a switched-reluctance motor (srm) during offline and standstill modes. in this method, the fault signature is differential induced voltage (div) achieved by injecting diagnostic pulses to the motor windings. it will be demonstrated by means of results that there is a correlation between differential induced voltage and eccentri...

The number of research studies have shown that the fault in the stator or rotor generally show sideband frequencies around the mains frequency (50Hz) and it higher harmonics in the spectrum of the Motor Current Signature Analysis (MCSA). However in the present experimental studies such observations have not seen, but any fault either in the stator or the rotor may distort the sinusoidal respons...

In this paper, a novel stator current based Model Reference Adaptive System (MRAS) estimator for speed estimation in the speed-sensorless vector controlled induction motor drives is presented. In the proposed MRAS estimator, measured stator current of the induction motor is considered as a reference model. The estimated stator current is produced in an adjustable model to compare with the measu...

<span>The main aim of this work is to analyze the input current waveform for a single-phase induction capacitor-run motor (SIMCR) detect faults. Internal and external faults were applied SIMCR was measured. An armature (broken rotor bar) bearing SIMCR. A microcontroller used record signal MATLAB software it with different types fault varying load operations. Various values running capacit...

For machines׳ monitoring purpose, the classical motor current signature analysis has shown its weakness in distinguishing the eccentricity occurrence in presence of others mechanical faults. Although Park׳s vector approach can cover this drawback, the high cost due to the requirement to use three current sensors associated with an advanced processing technique, makes it less desired by industri...

In the industry, continuous health monitoring of electric motors is considered as an essential requirement. The operation motor may cause malfunctions and addressing them timely a critical challenge. development efficient system based on identification electrical faults great demand. This paper addresses fault detection technique using discrete wavelet transform (DWT) algorithm for motor-based ...

There is significant clinical and prognostic heterogeneity in the neurodegenerative disorder amyotrophic lateral sclerosis (ALS), despite a common immunohistological signature. Consistent extra-motor as well as motor cerebral, spinal anterior horn and distal neuromuscular junction pathology supports the notion of ALS a system failure. Establishing a disease biomarker is a priority but a simplis...