Direct torque control (DTC) technology is a superior, modern and a new type of AC machinerndrive control technology developed after vector control technology. In this Thesis, the DirectrnTorque Control (DTC) scheme for Induction Motor Drive using Space Vector Modulationrn(SVM) technique is studied....
A new simpler vision based robot control system is proposed characterized with position specificrnartificial neural network (ANN) and end-effecter integrated camera system. Position specific ANNrnavoids the difficulty of covering the whole joint space with changing parameters using one set ofrnANN,...
Magnetic saturation in electrical machines has major influence on operational characteristics ofrnthe machine. To apply precise control mechanism on an induction machine, the development ofrnaccurate and reliable knowledge of parameter variation in induction machine‟s operating regionrnduring...
Axum has scarce water resource. At present, there are four wells and a dam that are supposed tornsupply water from aquifer and provide a barrier constructed to hold back water to the publicrnthrough the water distribution network. However, the pumping stations at these wells and damrnalong with the...
In this thesis hybrid Fuzzy-PI control speed control of five-phase induction motor vector controlrnis modeled. For modeling purpose five phase squirrel-cage induction motor is selected. Thisrnselected motor is analyzed on d-q synchronously rotating reference frame. Also third and fifthrnharmonics...
This thesis investigates the application of a neural network based model reference adaptivernintelligent controller for controlling of the nonlinear systems. In this scheme, the intelligentrnsupervisory loop is incorporated into the conventional model reference adaptive controllerrnframework by...
Changes in climate become common concern of all mankind. Consequences resultingrnfrom global warming such as rise in the sea level, ji'equent occurrence of naturalrncalamity, agricultural breakdown, melting of the polar ice, worsening human heathrneffect, disruption of the water cycle, to mention...
SchoolNet is the student-centric educational network that provides equal opportunities for students to get access to the Internet, and the contents and delivery of educational services. Actually, the Ethiopian government has spent a great amount of money since the SchoolNet project is a cross point...
In spite of being numerically a significant portion of the Ethiopian societt), PWDs arernthe most povertt) stricken. There are many factors that directly or indirectly contributerntoward this state of affairs. But one factor that stands out, above all the others is theirrnlack of equal employment...
No doubt, the judiciary, if not the only, is the proper custodian of the rule of law and individualrnrights. This happens only if it has the power to review, at least, acts of the executive for itsrncompliance with higher laws. In Ethiopia, it is evident that an independent judiciary with...
The justifi cations for the importance of the doctrine of precedent rest on the need forrncertainty, reliance, equality and efficiency in the law. Hence, cases involving similar legal issuesrnare expected to have similar outcome in all COUl1s. When the Ethiopian Federal Supreme CourtrnCassation...
Not surprisingly, an effective logistics sector is now recognized almost everywhere as one of the core enablers of development. The role of logistics in the global economy is better recognized today than it was 10 years ago. Good logistics services reduce the cost of trade. Logistics performance is...
Not surprisingly, an effective logistics sector is now recognized almost everywhere as one of the core enablers of development. The role of logistics in the global economy is better recognized today than it was 10 years ago. Good logistics services reduce the cost of trade. Logistics performance is...
Not surprisingly, an effective logistics sector is now recognized almost everywhere as one of the core enablers of development. The role of logistics in the global economy is better recognized today than it was 10 years ago. Good logistics services reduce the cost of trade. Logistics performance is...
Procurement is a means by which an organization acquires works, good, consultancy and other services in a scientific manner. More than two third of the organization annual budget is spend through procurement. Every activity of the organization, either service or goods provider, is highly attached...
Strategic sourcing concept and practice is growing at a rapid rate throughout the world because organizations view it as a way to achieve strategic goals, improve customer satisfaction and provide efficiency and effectiveness to operations. This study was guided by the following general objectives:...
Logistics activities mostly considered as support activities by many companies, the main purpose of this research is to find out the driving factor of Total Ethiopia for outsourcing logistics activities and the effect of outsourcing logistic activities on logistics performance. The study is carried...
Supply chain management would strive to scan the environment, plan along with forward and backward stakeholders, design proper strategies to lower costs, shorten delivery time, low inventory level and improve reliability, where all intended to improve the SCM performance of supply chain team...
The paper has made a study on the Practices and Challenges of Supply Chain Management of Bitumen in the case of Oil companies in Ethiopia, with regard to Strategic Supplier relationship, Customer relationship, Information Sharing, Information Quality and Internal lean practices. Also the Logistics,...