INTRODUCTION First of all, I like to thank God for this opportunity to stand before th all of you this afternoon to deliver the 29 in the series of Public Lectures organized by Covenant University. I like to thank the Chancellor, the Vice-Chancellor, the Registrar and all members of Management for giving me the opportunity to use this platform to express my views on the issue of Infrastructure development in our country and continent. Secondly I like to acknowledge my faith in God and in his...
REACTIONS AND TYPES Reaction in chemistry has to do with a chemical transformation taking place with atoms or molecules (compounds) or their combinations. Since there is usually a change in energy level, reaction is usually accompanied by heat absorption (Endothermic Reactions) or heat evolution (Exothermic Reactions). On a daily basis, apart from reactions that are initiated by man, there are scores of natural reactions taking place on routine basis. The existence of man and other living th...
ABSTRACT This study pursuit develop solar energy systems in the light of technological advances to develop these systems, especially those moving (solar Tracking) to take advantage of sunlight for a longer period. The Objective of Thesis is to find a design of the sun Tracker with two axes follow the movement of the sun throughout the sunrise to take advantage of the rays and solve the problem of environmental factors and the alternation of night and day to produce the greatest amount of sol...
ABSTRACT Power system stabilizers and other controllers are employed to damp oscillations in power systems, thereby guaranteeing satisfactory dynamic performance following major network disturbances. However, the parameters of these controllers are often tuned based on the power system linearized model which generally is a function of the system operating point or state. These controllers suffer from poor performance when the system state changes. The aim of the research work reported in thi...
Abstract The development of technology has a good impact on all sciences including medicine. The use of modern technology in medicine reduces the incidence of serious medical errors; some diseases need to follow their symptoms for a long time to be discovered. There is a problem in tracking symptoms for patients at each time visiting the hospital where data cannot be saved and retrieved when needed. By using the cloud computing technology, all hospitals can be linked by the Software-as-a-Ser...
Abstract This research concerns with the energy resources in Sudan. It includes the steam plants, their unplanned outage problems. The study conducted on Dr. Sharief power station in Khartoum north. The research is studied the station problems occurring during the period (Jan 2011 to Dec 2015), the maintenance program procedure and management method description. Losses resulting from unplanned outage were calculated. The rest of maintenance was not calculated because there were no enough dat...
ABSTRACT This thesis presents a neuro-fuzzy controller design for speed control of Direct Current (DC) motor. The thesis scope includes the simulations and modeling of DC motor, Fuzzy Logic Controller (FLC), neuro fuzzy controller and conventional Proportional-Integral-Derivative (PID) controller as benchmark to the performance of fuzzy system. The most commonly used controller for the speed control of DC motor is the conventional PID controller. Fuzzy logic controller and neuro-fuzzy contro...
INTRODUCTION “In the beginning God created the heavens and the earth. Now the earth was formless and empty, darkness was over the surface of the deep, and the Spirit of God was hovering over the waters. And God said, let there be light, and there was light. God saw that the light was good, and he separated the light from the darkness. God called the light day, and the darkness he called night. And there was evening, and there was morning – the first day” [1]. Electricity, of which Ligh...
Abstract The computer program for machinery cost estimation (CP-Mace) is a Windows based software program that can be run on a Windows XP or higher system on computers. It is a user-friendly interactive program written in VISUAL BASIC 6 programming language for machinery management. It allows the user to interact with it by entering the required inputs and it will carry out the interactive calculations. The program enables the user to print out the output which is displayed on the screen. Th...
ABSTRACT Qualitative and quantitative predictions of reservoir properties and geometries beyond well control are vital to understanding the intrinsic characteristics of subsurface formations. Using well log data, 3D Seismic data, Geostatistical simulations, reservoir characterization, modeling via multivariate analysis was carried out for and lateral predictions on data set obtained from Liaohe field, western sag, Bohai Bay, Northern China. This sag is an intra-cratonic basin of Archean to Re...
ABSTRACT The design of switched local area networks in practice has largely been based on heuristics and experience; in fact, in many situations, no network design is carried out, but only network installation (network cabling and nodes/equipment placements). This has resulted in local area networks that are sluggish, and that fail to satisfy the users that are connected to such networks in terms of speed of uploading and downloading of information, when, a user’s computer is in a communica...
Abstract This research focuses on quantify presence of malaria pigment (hemozoin) in blood stream by measuring the two properties of light interaction with hemozoin crystal: scatter angle and absorption of laser infrared when interacting with hemozoin particles on application of a magnetic field and pressure force in a noninvasive way. The prototype contains Laser infrared source, permanent magnet and embedded system (SOC) in-order to diagnose malaria type and prove the relationship between ...
Abstract Stepper motors are motors that indexes by digital pulses that turn their rotors a fixed fraction of a revolution where they will be clamped securely by their inherent holding torque. Stepper motors are a cost-effective and a reliable choice for many applications such as CNC and Robotics. They are used as open loop control systems which are in no need for feedback devices. Being open loop control systems, their major drawback is that if they were not used within their specified range...
TABLE OF CONTENTS Introduction......................................................................................4 Previous works on Catalyst Deactivation........................................7 Experimental Work..........................................................................13 Existence of Stability States.............................................................21 Cause of Deactivation and Mortality...............................................21 Some Significant Observati...
Abstract Distribution transformer is considered one the most important element in the power distribution system as it works to reduce the high voltage to the consumption voltage. To achieve maximum efficiency of these transformers and to ensure stability of the power distribution system, their operational conditions must be quite appropriate which led to perform their task efficiently throughout their life time. This research aims to design a monitoring system for the distribution transforme...