نتایج جستجو برای: displacement control
تعداد نتایج: 1378088 فیلتر نتایج به سال:
This paper presents an active steering control strategy that improves the performance of rail vehicles on track curves. The control scheme is developed to explore the usually symmetrical arrangement of bogie suspensions such that only simple and practical sensors are needed. The vehicle configuration and requirements of wheelset steering on curves are explained, before the detailed control desi...
DNA is increasingly being used as the engineering material of choice for the construction of nanoscale circuits, structures, and motors. Many of these enzyme-free constructions function by DNA strand displacement reactions. The kinetics of strand displacement can be modulated by toeholds, short single-stranded segments of DNA that colocalize reactant DNA molecules. Recently, the toehold exchang...
In order to eliminate the influence of the hysteresis, creep and nonlinear of the piezoelectric ceramic and other influence of the outside factors, the adaptive neural PSD control algorithm is proposed to implement the real-time control of the micro-positioning workpiece table. The experiment result verifies the validity of the close-loop control. The displacement precision is 0.01 μm, and resp...
The rotor displacement measurement plays an important role in an active bearing system, however, in practice this measurement might be quite noisy, so that the control performance might be seriously degraded. In this paper, a soft sensing method for magnetic bearing-rotor system based on Support Vector Regression (SVR) and Extended Kalman Filter (EKF) is proposed. In the proposed method, SVR te...
Pressure control valve (PCV) is implemented in internal combustion engine to regulate crankcase pressure. In this study, the performance of a diaphragm PCV valve is investigated numerically and experimentally. Firstly, numerical simulation is carried out using commercial code to predict the flow and pressure distribution inside the valve. Furthermore, downstream and upstream pressure of the val...
The principal deficiency of image-based visual servoing is that the induced (3D) trajectories are not optimal and sometimes, especially when the displacement to realize is large, these trajectories are not physically valid leading to the failure of the servoing process. Furthermore, visual control needs a matching step between the features extracted from the initial image and the desired one. T...
Background and Aims :The most frequent cause of TMJ dysfunction is internal derangement which that largely involves the function of the articular disc. Anterior disc displacement (ADD) is one of the major findings in TMJ internal derangement. Since the importance of knowledge of its etiology and also The role of all structural indicators association with TMD was not evaluated, in this researc...
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