Papers by Ayad E . Korial
Computers, May 22, 2024
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
International journal on engineering applications, Nov 30, 2022
International Journal on Engineering Applications (IREA)
International Journal of Mechanical Engineering and Robotics Research
Due to their great efficiency in converting mechanical energy in manufacturing as well as energy ... more Due to their great efficiency in converting mechanical energy in manufacturing as well as energy recovery, Direct Current (D.C.) motors have been utilized for a long time. This sort of motor's machinery is extremely powerful and capable of delivering maximum torque. In this work, three controllers are designed and sought to establish the impact of these three types of controllers in the control performance of D.C. motor in terms addressed to control the position. The first one is Linear Proportional-Integral-Derivative (LPID) controller, second one Nonlinear Proportional-Integral-Derivative controller (NPID) and then third Fuzzy Logic Controller (FLC). The control's results yielded an appropriate answer for the applications. The outcomes of simulations run in the MATLAB environment are compared. According to the findings, fuzzy positioncontrolled D.C. motors have a faster settling time and higher performance parameters than LPID and NPID positioncontrolled D.C. motors, in addition, FLC provides an accurate controller for controlling the systems.
This paper suggests a navigation structure for visually impaired/blind people using A star algori... more This paper suggests a navigation structure for visually impaired/blind people using A star algorithm. The proposed structure is consisted of two parts. In the first part planning the path and in the second part avoiding obstacles. The aim is to guidevisually impaired/blind people from a required location to a desired location. Two tests are run in each part and modeled in C sharp language and MATLABprogram. Simulation results show good performance for the proposed scheme that the visually impaired/blind people reach the desired location successfully without error. In conclusion, A star path finding algorithm using C sharp language was a valid and reliable method to guide the visually impaired / blind people from a required location to a desired location in indoor environment with or without obstacles.
Journal of Information Engineering and Applications, 2016
This paper suggests a navigation structure for visually impaired/blind people. The proposed struc... more This paper suggests a navigation structure for visually impaired/blind people. The proposed structure is consisted of builder simulator, smart phone with built-in compass and cane. The aim is to guide visually impaired/blind people from a required location to a desired location. Multi tests are run where modeled in C sharp and java languages and MATLAB program using A* algorithm. Experimental results show good performance for the proposed scheme that the visually impaired/blind people reach the desired location successfully without error. In conclusion, A* path finding algorithm using C sharp language for builder simulator, and java language for smart phone, were valid and reliable methods to guide the visually impaired / blind people from a required location to a desired location in indoor environment with or without obstacles. Keywords: Smart phone, built in compass, cane, planning the path, avoidance obstacles, visually impaired/blind people, A* algorithm, path finding, and indoo...
International Journal of Computer Applications, May 17, 2018
One of the most difficult challenges in lossless data compression is finding the right model for ... more One of the most difficult challenges in lossless data compression is finding the right model for the Deoxyribonucleic Acid (DNA) compression. DNA sequences include four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T) where the information in DNA is stored as a code made up of these four chemical bases and these sequences show these are not random, if they are totally random then store them in two bits, this is the most efficient and logical way. This paper proposed an algorithm called A2 for DNA data compression. The proposed algorithm consists of four stages to build a substitutional model. The first stage used a modified version of run-length coding, in second and third stages mapping model for formatting data to be suitable for the final stage fed into Burrows-Wheeler Transform to use permutation technique that group related symbols as possible to improve dictionary coding using Lempel-Ziv (LZ77) and output file stored as (.a2) extension. The A2 algorithm implemented and tested on data from GenBank and shows acceptable file size and processing time ratio.
Journal of Engineering and Applied Sciences, 2019
Computer Engineering and Intelligent Systems, 2018
Feature extraction from images is an essential part of the recognition system. Calculating the ap... more Feature extraction from images is an essential part of the recognition system. Calculating the appropriate features is critical to the part of the classification process. However, there are no standard features nor a widely accepted feature set exist applied to all applications, features must be application dependent. In contrast, deep learning extract features from an image without need for human hard-coding the features extraction process. This can be very useful to build a model for classification which can classify any type of images after trained with enough images with labels then the trained model can be used in different recognition applications to classify. This paper presents two techniques to build recognition system for Arabic handwriting numbers, the feature-based method shows accepted results. However, the deep learning method gives more accurate results and required less study on how Arabic number is written and no hand-coding algorithms needed for feature extraction ...
International Journal of Computer Applications, 2016
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Papers by Ayad E . Korial