A conical tank in which the diameter changes with the tank height, allows the use of feedback control used in complex nonlinear systems, such as adaptive control. This project modified an existing system of two interacting tanks by inserting a removable solid cone into one of the tanks. This modification created two new nonlinear configurations, one of which had a discontinuity. Optimal control...

Modeling pronunciation variation is key for recognizing conversational speech. Rather than being limited to dictionary modeling, we argue that triphone clustering is an integral part of pronunciation modeling. We propose a new approach called enhanced tree clustering. This approach, in contrast to traditional decision tree based state tying, allows parameter sharing across phonemes. We show tha...

Pneumatic control valves are still the most used in process industries due to their low cost and simplicity. This paper presents a design procedure of a PID controller for a pneumatic control valve. For comparison, P and PI controllers are also utilized for the control valve. The bond graph method is used to model the control valve, in order to compare the response characteristics of the valve....

This paper deals with video segmentation based on motion and spatial information. Classically, the nucleus of the motion term is the motion compensation error (MCE) between two consecutive frames. Defining a motion-based energy as the integral of a function of the MCE over the object domain implicitly results in making an assumption on the MCE distribution: Gaussian for the square function, Lap...

This work investigates Automatic Generation Control and optimal gain setting of conventional controller for multi area interconnected reheat thermal power systems. Conventional Proportional – integral – Derivative (PID) controller is used for this investigation. Optimization of controller gain values are tuned by Integral Time Absolute Error (ITAE) traditional approach. The proposed work presen...

This study focuses on the modeling and control optimization of pitch–roll angles orientation in a quad-rotor UAV (unmanned aerial vehicle) drone system. To address challenge, PID (proportional–integral–derivative) controllers are used, which have been tuned through model-based approach. A non-linear model system is obtained further validated experimentally. The implemented Simulink to conduct o...

In this paper, to maximize the net output power and realize better performance optimization control of oxygen excess ratio, a complete dynamic model proton-exchange membrane fuel cell system is developed an active disturbance rejection strategy proposed. The drives uncertainties perturbations extended state, which predicted eliminated by real-time input–output data. simulation results indicate ...

In order to solve coupled fractional differential-integral equations more effectively and deal with the problem that huge algebraic lead considerable computational complexity large data storage requirements in calculation process, this paper approximates function of unknown solution based on Chebyshev wavelet second kind then combines collocation method numerical nonlinear Fredholm integral-dif...

The unpredictable nature of the marine environment, combined with nonlinear dynamics and parameter uncertainty underwater vehicles makes control system design for such a challenging task. Based on these issues, hybridizing robustness adaptation in could result more successful missions. This article proposes robust adaptive (RAC) scheme trajectory tracking an autonomous vehicle. proposed RAC has...

In this paper, a new technique has been designed to capture the outline of 2D shapes using cubic B´ezier curves. The proposed technique avoids the traditional method of optimizing the global squared fitting error and emphasizes the local control of data points. A maximum error has been determined to preserve the absolute fitting error less than a criterion and it administers the process of curv...