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Paper machines cross-directional (CD) processes are a class of spatially distributed systems. Due to economic constraints, identification experiments are usually severely limited making the identification of this large dimension multi-variable model challenging. The industrial identification technique uses bump test data where a few actuators are stepped while the CD process is running in open-loop...
Radiation and temperature influence the optical fiber characteristics. These influences such as increasing the chromatic dispersion were studied and shown to result from the refractive index changes occurring within the fibers induced by radiation and thermal effects. In this paper we present a model and a simulation results to reveals the effect of radiation and temperature on the optical fiber chromatic...
Radiation-induced luminescence of fibers was shown to result from the Cherenkov process occurring within the fibers. In this paper we use A ‘two-photon-flows’ model to reveals the relation between the effect of light emission and the optical fiber parameters by using Vissim environment. This formulated treatment provides a mean to control the optical properties of fibers in radiation environments...
This paper introduces a dynamic model to adequately describe an Upflow Anaerobic Sludge Blanket (UASB) reactor. Some available models of a UASB reactor are discussed in order to modify their drawbacks and propose a new improved model with less complexity and more reliability. The developed model is a combination of two recent models introduced in Sweden. According to this model, a UASB rector is divided...
In an Electric Submersible Pump (ESP) lifted oil field, the ESP of each oil well should be operated inside its operating window. The total power consumed by the ESPs in the oil field should be minimized. The speed of the ESPs and the production choke valve opening should be optimally chosen for maximizing the profit from the oil field. At the same time, the capacity of the separator should not be...
Effective supply chain management (SCM) has become a vital way of enhancing competitive advantage and improving enterprise performance. One of the most optimization methodologies of supply chain is simulation. Simulation is an effective tool that offer life-like scenarios and develop valuable functional business knowledge and decision-making skills. This paper aims to introduce the supply chain simulation...
Artificial Bee Colony (ABC) is one of the most recently evolutionary computation algorithms. Artificial Bee Colony has limitations due to its stochastic searching characteristic and complex computation that result in slow convergence to the global optimum solution. In this paper, an efficient dynamic inertia weight based method is introduced to improve the performance of the standard ABC algorithm...
In order to differentiate the photosynthetic processes of plant species in a variable dynamic, a hybrid genetic-fuzzy system for Cuba is designed in this paper. The proposed fuzzy control algorithm and consequent genetic optimization, process species numbers and characteristics of metabolism, in order to overcome non-linearity in the water energy dynamic. Furthermore, exploration into the utopia hyper-plane...
This paper presents the design and implementation of a real-time system for the temperature monitoring and control in an infant incubator using a PIC16F877 microcontroller. The implementation of a set of control approaches on the microcontroller is investigated: direct on-off control, proportional (P-control), proportional-integral (PI-control), proportional-integral-derivative (PID-control) and fuzzy...
Fetal heart activity is generally monitored using a CardioTocoGraph (CTG) which estimates the fetal tachogram based on the evaluation of ultrasound pulses reflected from the fetal heart. It consists in a simultaneous recording and analysis of Fetal Heart Rate (FHR) signal, uterine contraction activity and fetal movements. Generally cardiotocograph comprises more number of features. This paper aims...
The main focus of this paper is taken on the direct solution to the nonlinear autonomous underwater vehicle (AUV) dynamics including the performance and stability of a proposed controller without any restricting assumptions on the AUV's angles during the diving process. Because assumptions may cause severe result in practical applications, Six Degree of Freedom (6DOF) dynamic modeling has been taken...
Mobile robot navigation is a very important task in all robot applications from domestic service cleaning machine to highly sophisticated industrial robotic applications. In this paper, we investigated, and evaluated the well-known A* path planning algorithm. The standard A* algorithm is capable of finding out the most optimal path of the robot. A grid-based map obtained from the vision-based obstacle...
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