In this paper, we present a robotic actuation system using an artificial muscle actuator based on a dielectric elastomer. A novel linear actuator called a ‘multi-stacked actuator’ is proposed that can be embedded in the phalanges of a multi-jointed robot finger. This actuator ensures a compact design of the overall system. As an example, a 2-d.o.f. robot finger is developed and its performance ...

In this paper we assume that all actuators are mobile and an event was reported to one of the actuators, and a response by one actuator is required. The goal of actuator task assignment is to select the best actuator for responding to a reported event so that communication cost for selecting, and response time for performing the task are minimized. Existing solutions, except those proposed in [...

a sensitive, selective and effective ionic liquid-based single drop microextraction technique was developed by using ionic liquid, 1-hexyl-3-methylimidazolium hexafluorophosphate, c6mimpf6, coupled with electrothermal atomic absorption spectrometry (etaas) for the determination of copper and silver in environmental samples. dithizone was used as chelating agent. several factors that influence t...

For patients with osteoarthritis (OA) involving the spine, proper diagnosis, pain management and functional outcomes remain poor and inconsistent. This is despite widely used therapies such as steroid and Botulinum toxin injections, chemonucleolysis, radiofrequency denervation, intradiscal electrothermal therapy, pain management pumps, spinal cord stimulators, and surgery [1,2]. Most of these o...

In order to exhaustively exploit the high-level capabilities of shape memory alloys (SMAs), they must be applied in control systems applications. However, because of their hysteretic inherent, dilatory response, and nonlinear behavior, scientists are thwarted in their attempt to design controllers for actuators of such kind.  The current study aims at developing a micro-position control system ...

Elastomeric dielectric material has recently become a new alternative for actuator technology. The characteristics of dielectric elastomers placed between two electrodes to withstand large strain when electrodes are charged has attracted the attention of many researcher to study this material for actuator technology. Thus, in the past few years Danfoss Ventures A/S has established their own die...