This paper proposes a novel adaptive Super-Twisting sliding mode control for a microgyroscope under unknown model uncertainties and external disturbances. In order to improve the convergence rate of reaching the sliding surface and the accuracy of regulating and trajectory tracking, a high order Super-Twisting sliding mode control strategy is employed, which not only can combine the advantages ...

Jeffreys (1946) proposed a root-information prior for the likelihood analysis of a statistical model. Then for an exponential model with scalar parameter Welch & Peers (1963) showed that this leads to second-order inference, or more specifically that posterior intervals have second order confidence. But for an exponential model with vector-parameter Jeffreys (1961) found that the root informati...

Axial twisting of the torso has been identified via epidemiologic studies as a significant risk factor for occupationally-related low back disorders. However, only recently have biomechanical studies been able to describe how twisting is accomplished through the use of the trunk musculature. These studies have been performed on subjects whose torso twists were performed in an upright posture. I...

In this article, the issue of attitude control and active vibration suppression of a nonlinear flexible spacecraft is assessed through piezoelectric patches as actuator and sensors. Two controller loops are applied: the inner loop, to make the panel vibration damped through piezoelectric patches; and the outer loop, to perform spacecraft maneuver using the reaction wheel acting on the hub. An o...

Occupational-related low back disorders are the leading cause of lost work days as well as the most costly occupational safety and health problem facing industry today. Twisting has been found to be associated with lower back pain (Frymoyer, 1983). Previous biomechanical measures of twisting allowed ancillary moments and forces in addition to the twisting exertion. This confounding makes it dif...

Abstract We find a charged spherically symmetric black hole solution with the existence of cloud strings and quintessential matter. Then we apply Demiański-Newman-Janis algorithm to generate rotating twisting counterpart. The thermodynamic properties this are further investigated.