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.
Clinical research indicates that the epidural spinal cord stimulation (ESCS) at lumbosacral segment has shown potential for promoting locomotor recovery in patients with incomplete spinal cord injury. However, the underlying neural mechanism needs to be determined by animal experiments. In order to refine experimental protocols, we used a finite element simulation to investigate the activation of...
Feedback linearization control based on nonlinear disturbance observer is investigated for an electro-hydraulic servo system with external disturbances and system uncertainties. Firstly, a mathematical model of electro-hydraulic servo system is developed and a single input-output affine system form is obtained. Then the technique, based on the feedback linearization, is employed to transform the nonlinear...
Vehicle scheduling of urban distribution is an important element of the logistics center's operation. The total scheduling cost is not only influenced by the satisfaction of customer service time window and the effective utilization of vehicle capacity, but also is closely related to the traffic flow, road capacity, vehicle saturation degree of intersection, traffic lights and road rules in actual...
This paper aims to discuss the application of grey theory to the supplier selection problem. In the Introduction part, the author concludes the weakness of several existing methods to the supplier selection problem and proposes that the grey system theory would be more suitable than others due to its nature and characteristics. After putting forward a set of comprehensive evaluation index system,...
The projection errors caused by curvature of the earth and relief are two important problems in geometric correction, especially in the case of imaging with large view angles. General polynomial correction model is only effective to flat area and ineffective to correct projection errors caused by both curvature of the earth and relief. According to the generated characteristic of the projection errors,...
This paper deals with the identification of Wiener systems with hard nonlinearities. Using the switching function, a special form of nonlinearity representation is used in the Wiener system description. Two recursive identification algorithms are proposed, one is the recursive stochastic gradient identification algorithm and the other is the adaptive forgetting through multiple models identification...
In this study, the sliding mode approach is applied to the tracking control problem of a planar arm manipulator system driven by a new type of actuator, which comprises a pneumatic muscle (PM) and a torsion spring. Unlike the traditional agonist/antagonist pneumatic muscle actuator, the PM is arranged in place of bicep and the torsion spring provides opposing torque in the presented actuator. The...
In this note, we firstly recall the main results in [1] and their brief proofs. As applications of the results, we study the control problem of the general networks of strings. Some new examples of networks of strings with circuits are given.
Due to fixed window area-based stereo algorithms having given rise to relatively large matching errors around depth discontinuities, a adaptive window for stereo matching algorithm using integral image was proposed in this paper. A new similarity function and Four-direction line mask were employed in initial parallax gain aspect, not only to reduce noise effects but also to improve matching accuracy...
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.