Thesis
Design and implementation of a hearing aid circuit
Abstract: Hearing disorders are the most prevalent disabling conditions reported all over the world, that affect about 10% of the population. It adversely affects physical, cognitive, behavioral, and social functions, as well as the general quality of live. The first electrical hearing instruments was introduced 100 years ago, but only about 20% of those who could benefit from hearing aids wear them, moreover, surveys suggested that about only 50% of hearing aid users are satisfied with their hearing instruments. This indicates hearing technology even today is a prominent research area.
Handwritten character recognition system based on fourier and wavelet transforms
Abstract:The problem of handwritten recognition is considered to be very important problem because of its numerous applications and theoretical values in the domain of pattern recognition. This thesis presents a design to an off-line handwritten recognition system. It is designed to recognize handwritten styles of Latin script. The recognition responsibility of the proposed system is for 62 character classes [uppercases (A-Z), lowercase (a-z) and digits (0-9)]. The suggested system includes the essential stages needed for most of the pattern recognition systems.
Network based remote stepper motors control
Abstract: The virtual lab is one of the new fields developed to enhance the remote learning programs which have proved useful in terms of time and place bounds that come with the traditional learning systems. It provides students with access to execute experiments on remote laboratories via internet or network connections. A Virtual Lab system consists of three major parts: The server PC, the client PC and the lab devices. The server is connected to the client via Internet/network connection, and it’s also connected to the lab devices via a hardware port (such as the Parallel Port).
Modifying manually driven wheelchair to an electrically powered wheelchair by using PWM motion driver
Abstract: Indoor wheelchairs can be used for limited needs users, especially people with lower limb paralysis or spinal cord injuries which require limited speed motion. The aim of this study is to modify the actual design of the manual driven wheelchair to an electrically powered wheelchair. Controlling method for speed and motion was used and constructed using MULTISIM program Version (9). Feedback controlling system using Tachometer feedback voltage signal is used which make the system more stable. This method was chosen from many ways to control the DC motor.
Unsupervised segmentation method for brain MRI based on fuzzy techniques
Abstract: Segmentation of MR images was formulated in this thesis as the problem of partitioning a set of feature vectors obtained from an MR image into a relatively small number of clusters. Segmentation of MR images is formulated as an unsupervised vector quantization process, where the local values of different relaxation parameters form the feature vectors which are represented by a relatively small set of prototypes.
SCADA security using packet filtering firewall.
Abstract: This thesis focuses on implementing packet filtering firewall technique for protecting SCADA system. It uses filtering criteria to decide whether to permit or deny packets entry into the network. Parts of the packet that are examined are; the source IP address, the destination IP address, and the Internet protocols carried by the packet. At the beginning, the miniature SCADA system was implemented on two computers to take overview on the basic component of SCADA system, and to preview the data transmission between them.
Design and implementation of distributed database for college of engineering
Abstract: The databases technology has acquired a great deal of attention from the academic community and computer industry for their wide use and success; it can be described as the most developed growing field in computer or information system. Distributed database helps eliminating many of the shortcomings of centralized database This work concerns with the design and implementation of mark system in the college of engineering of Nahrain University.
Road extraction based on balloon snakes technique
Abstract: The extraction of roads from aerial and satellite images is an important task within cartography and planning of new road networks. The recent developments of the Geographic Information System (GIS) require rapid updates of roads all over the planet. Over the past few decades, many automatic and semi-automatic methods were developed for the purpose of road extractions which vary in planning, techniques and application from one to another. The objective of this thesis is to develop and implement a road extraction system.
Automatic voltage regulator based on FPGA technology
Abstract: In recent years, the scale of power systems has been expanding and with that expansion stable power supply and smooth power system operation is becoming increasingly important. One measure for increasing stability is to improve the main circuits by raising the voltage or employing series capacitors in power transmission lines, but the generator exciter control method, which makes use of AVR (automatic voltage regulator), is attracting attention because of its inherent cost advantage.
Robust control of micromotion system
A robust controller design for a micro motion system represented by a piezoelectric bimorph actuator is considered. The dynamic model of the piezoelectric actuator with nonlinear hysteresis is presented. The nonlinear dynamics of the actuator are first linearized using the stochastic equivalent linearization method. Then a robust controller is designed for the piezoelectric actuator system using a state space approach which guarantees stability and good performance of the controlled system. Three approaches are considered.