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...
ABSTRACT The Electric Power and Energy Systems (EPES) group forms a core research area of the Department of Electrical and Information Engineering. Our research cluster is motivated by the need to address the issues related to the design and operation of modern, “smarter”, greener electric power grids. In addition, renewed interest in hybrid--‐electric distributed systems and home automation calls for advances in the area of energy conversion and power electronics. The EPES research c...
Abstract Over the past several years, the Internet environment has become more complex and untrusted. Enterprise networked systems are inevitably exposed to the increasing threats posed by hackers as well as malicious users internal to a network. IDS technology is one of the important tools used now-a-days, to counter such threats. The goal of intrusion detection is to identify unauthorized use, misuse and abuse of computer system insiders and outsiders penetrators. Various IDS techniques ha...
ABSTRACT Failure of engineering components in service, especially in marine applications, has recently been a major global concern, and corrosion resulting from biofouling has been the primary source of these failures. Ultimately, biofouling and corrosion are detrimental to the lifespan of parts in service. Thus, there is a need to develop protective coatings which are highly resistant to the biofouling-corrosion system. This study developed affordable, eco-friendly and durable bi-phase of Zn...
ABSTRACT African nations have been characterized by conflicts, total war, slave trade, poverty of the highest order, corrupt leadership, undeveloped infrastructures, indisciplined society, we can go on to mention as many as the vices that estranged the continent. It is an irony to see all these in African continent, where civilization of the world began. For all these calamities that befell Africa, I sometimes wonder, if that is why the observation of our God in Genesis 6:5 was made. “The L...
ABSTRACT African nations have been characterized by conflicts, total war, slave trade, poverty of the highest order, corrupt leadership, undeveloped infrastructures, indisciplined society, we can go on to mention as many as the vices that estranged the continent. It is an irony to see all these in African continent, where civilization of the world began. For all these calamities that befell Africa, I sometimes wonder, if that is why the observation of our God in Genesis 6:5 was made. “The L...