We tested the hypothesis that solvent viscosity affects translocation of rhodamine phalloidin-labeled F-actin by rabbit skeletal heavy meromyosin (HMM). When viscosity was increased using either glycerol, fructose, sucrose, or dextran (1.5, 6.0, or 15-20 kDa mol mass), there was little or no effect on the fraction of moving filaments, whereas sliding speed decreased in inverse proportion to vis...

Wearless friction is investigated in a simple mechanical model called Frenkel-Kontorova-Tomlinson model. We have introduced this model in [Phys. Rev. B, 53, 7539 (1996)] where the static friction has already been considered. Here the model is treated for constant sliding speed. The motion of the internal degrees of freedom is regular for small sliding velocities or weak interaction between the ...

Design and implementation of robust tracking controllers for linear feed drive high speed machine tools are the primary objectives of this work. Cutting forces and friction forces limit tracking accuracy and their influences are minimised through robust controller design. This paper discusses the design and tracking performances of a traditional cascade and a sliding mode controller for a X-Y m...

Sliding mode controllers are known to be robust to parameter changes, disturbances and uncertainties. In this paper a novel discrete time sliding mode controller with two surfaces is proposed to improve the speed of response. Here, approach angle reaching law is used to take the trajectory to the surfaces. The advantage is that the system trajectory is bought to the first surface with maximum v...

In this paper, we propose a parameter selection method by using the genetic algorithms in the sliding mode control of the variable structure system. The proposed method can efficiently choose the appropriate gain parameters based on a proposed fitness function to increase the speed of system response in the reaching phase and reduce the chattering in the sliding phase so that a high performance...

In this paper, a new actuator fault detection and isolation method for a four wheel independent drive electric vehicle is proposed. Also, a controller based on sliding mode control method is proposed for lateral stability of the vehicle. The proposed control method is designed in three high, medium and low levels. At the high-level, the vehicle desired dynamics such as longitudinal speed refere...

In this paper, one presents a transient state performance optimization of vectorcontrolled induction motor (IM) drives operating in the field-weakening region. The vector control scheme, based on the rotor flux field-orientation (RFOC), is considered to ensure maximum torque motor operation regime. Although in the high speed region, the measure of rotor speed and the sensitivity to parameters e...

In this paper, a robust sliding mode prediction model is combined with a sliding mode voltage model observer to achieve a sensorless predictive torque control method. In order to compensate the uncertainties of the stator and rotor resistances and the offset of measured current, sliding mode feedbacks were added to the voltage model observer. To reduce the effect of the errors that are injected...

An innovative adaptive control method for speed control of induction motor based on field oriented control is presented in this paper. The fusion of sliding-mode and type-2 neuro fuzzy systems is used to control this system. An online learning algorithm based on sliding-mode training algorithm, and type-2 fuzzy systems is employed to deal with parametric uncertainties and disturbances, by adjus...