نتایج جستجو برای: motor signal
تعداد نتایج: 570053 فیلتر نتایج به سال:
Induction motors need to be monitored regularly because it involves the company's productivity. The induction motor monitoring method in this study uses a current variable which is transformed using Discrete Wavelet Transform. Transform (DWT) used results are satisfactory for detecting short circuit stator winding of an motor. Of many types and levels discrete wavelet transforms, haar transform...
The present study was designed to address the role of context on perceptual–motor learning. Further it was of interest if and how practice might act as a mediation factor in developing these dependencies. Context was manipulated by changing the incidental context stimuli during retention due to the three different conditions [Same, Switched, Different]. Practice was manipulated during acquisiti...
We used functional magnetic resonance imaging to investigate whether hemispheral hemodynamic impairment can play an independent role in the functional reorganization of motor-related activity in the brain. Fourteen patients with large vessel occlusion but no infarct performed a simple motor task with the hand contralateral to the occluded vessel. Statistical parametric maps of regional activity...
Humans perform various motor tasks by coordinating the redundant motor elements in their bodies. The coordination of motor outputs is produced by motor commands, as well properties of the musculoskeletal system. The aim of this study was to dissociate the coordination of motor commands from motor outputs. First, we conducted simulation experiments where the total elbow torque was generated by a...
Self-generated, voluntary actions, are preceded by a slow negativity in the scalp electroencephalography (EEG) signal recorded from frontal regions (termed ‘readiness potential’; RP). This signal, and its lateralized subcomponent (LRP), is mainly regarded as preparatory motor activity associated with the forthcoming motor act. However, it is not clear whether this neural signature is associated...
ABSTACT: In the present scenario every industry need Condition Based Monitoring System to avoid unwanted faults in the process components. Vibration condition monitoring technique is widely used for fault detection. Vibration monitoring is the most reliable method of assessing the overall health of a motor system. In this paper we work on 2 Hp inductions motor. Ball bearing fault is widely occu...
BACKGROUND AND PURPOSE Comparative studies across populations using functional magnetic resonance imaging (fMRI) rely on a similar relationship between blood oxygen level-dependent (BOLD) signal and neural activity. However, in elderly and patients with cerebrovascular disease, impaired cerebrovascular dynamics and neurovascular coupling may explain differences in BOLD contrast across populatio...
Sensorless Speed Control of Brushed DC Motor Based at New Current Ripple Component Signal Processing
Signal processing of the brushed DC motor current was developed in this paper to obtain information about a rotor speed from measured current. The contains signal with frequency proportional speed. This is outcome commutation process occurring motor, and it called ripple component. Since number ripples per one rotation constant, can be estimated. A discrete bandpass filter floating bandwidth as...
Neural, vascular and structural variables contributing to the blood oxygen level-dependent (BOLD) signal response variability were investigated in younger and older humans. Twelve younger healthy human subjects (six male and six female; mean age: 24 years; range: 19-27 years) and 12 older healthy subjects (five male and seven female; mean age: 58 years; range: 55-71 years) with no history of he...
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