The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The aim of this study was to compare the intervals of time between adjacent zero crossings (ZCI), an alternative frequency-temporal parameter, with the root-mean-square (RMS) value and the median frequency (Fmed) from the surface EMG (sEMG) signal in muscle fatigue analysis. Twenty right-handed volunteers performed isometric contractions of right biceps brachii muscle while sEMG signals were collected...
In this paper the vibration attenuation problem in automotive suspension systems is presented. A robust active vibration control strategy based on sliding mode and differential flatness control techniques is proposed as a solution alternative of this problem. This active vibration control scheme only requires position measurements of the wheel and car body. State algebraic on-line estimation is used...
This paper presents the design and implementation of a four-fingered human-size robotic hand intended for dexterous and grasping manipulation applications. The prototype hand has 3 degrees of freedom (DOF) per finger and 2 DOF in the thumb for a total of 11 DOF. Shape memory alloys (SMAs) micro-coils are embedded intrinsically within the hand structure to power the joints while exhibiting some advantageous...
The role of mitochondrial K ATP (mitoK ATP ) channels on muscle fatigue was assessed in adult mouse skeletal muscle bundles. Muscle fatigue was produced by eliciting short repetitive tetani. Isometric tension and the rate of production of reactive oxygen species (ROS) were measured at room temperature (20–22°C) using a force transducer and the fluorescent indicator CM-H 2 DCFDA...
This paper presents the design and application of an adaptative control method for a bilateral system of teleoperation. The scheme and control of algorithm have been formulated in the state space following a control technique of the master and the slave state convergence. Based on the mentioned control scheme, gains on the control loop in order to obtain a stable bilateral system with the desired...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.