نتایج جستجو برای: direct electrical current
تعداد نتایج: 1320009 فیلتر نتایج به سال:
In this paper a sliding mode controller (SMC) is designed for a permanent magnet direct current (PMDC) motor to enhance the motor performance in the presence of unwanted uncertainties. Both the electrical and mechanical signals are used as the inputs to the SMC. The complete motor control system is simulated on a personal computer with different design parameters and desirable system performanc...
In this note, we show that the impedance control strategy proposed in the paper is not feasible from practical implementation point of view. Next, a robust impedance controller is proposed for electrically driven robots using Fourier series (FS). The fact that robots' actuators have limited voltage is also considered in controller design procedure. In comparison with other impedance controllers...
Gender differences in social cognition are a long discussed issue, in particular those concerning Theory of Mind (ToM), i.e., the ability to explain and predict other people's mental states. The aim of this randomized, double-blind, placebo-controlled study was to test the hypothesis that anodal tDCS over the medial prefrontal cortex (mPFC) selectively enhances cognitive ToM performance in fema...
Chest wall muscle recruitment varies as a function of the breathing task performed. However, the cortical control of the chest wall muscles during different breathing tasks is not known. We studied chest wall intermuscular coherence during various task-related lung volume excursions in 10 healthy adults (34 ± 15 yr; 2 men, 8 women) and determined if transcranial direct current stimulation (tDCS...
introduction: as a physical treatment, electrochemical therapy (echt) has provided an effective and useful approach for treating localized tumors. the chemical changes due to a direct electric current destroy the tumor. this study evaluates the effect of electrical dose and polarity on the efficacy of the treatment of a colon tumor model. materials and methods: in order to in...
Bi-directional enduring changes of cortical plasticity 69 induced by a novel paired stimulation protocol Workshop-New prospects of transcranial electrical stimulation (tES) Future prospects of transcranial electrical stimulation (tES) 84 Marco Cambiaghi-Letizia Leocani Electrophysiological effects of transcranial direct current 87 stimulation (tDCS) in the visual system: evidence from a mice st...
Electrical control of magnetotransport properties is crucial for device applications in the field of spintronics. In this work, as an extension of our previous observation of rectification magnetoresistance, an innovative technique for electrical control of rectification magnetoresistance has been developed by applying direct current and alternating current simultaneously to the Ge-based Schott...
t is a common practice to use Direct Current motors in mechatronics devices due to possibilities for their fine and rapid control. Induction electrical motors, on the other hand, are rugged and robust, however, have been a challenge and conventional drives and control mechanisms are not ideal for their fine tuning and control. As such these excellent electrical engines may not be very popular i...
Balance of cortical excitation and inhibition (EI) is thought to be disrupted in several neuropsychiatric conditions, yet it is not clear how it is maintained in the healthy human brain. When EI balance is disturbed during learning and memory in animal models, it can be restabilized via formation of inhibitory replicas of newly formed excitatory connections. Here we assess evidence for such sel...
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