vVe considered two different mechanisms by which a vacancy diffuses from one stable state to the next within a sublattice for a two dimensional binary alloys. For both mechanisms, we have found that the diffusion time ...

With increasing demands for higher data rate and better services, more efficient modulation techniques such as orthogonal frequency division multiplexing (OFDM) are being adopted by many broadband wireless standards. ...

In the midst of the dissemination of digital electronic games particularly Play Station Video games in Ethiopia since the turn of the millennium Ethiopian children have been able to be exposed to different kinds of digital ...

Magnetic semiconductors are semiconductor materials that exhibit both ferromagnetism and useful semiconductor properties. If implemented in devices, these materials could provide a new type of control of conduction. ...

In this Project, we introduced the affine varieties, which are curves and surfaces (and higher-dimensional objects) defined by Polynomial Equations. By considering ideals in the polynomial ring 1,…], we also understood the ...

Senna muitiglandulosa and Senna septemtrionalis are two of the eighteen Sernna species found in Ethiopia. The chloroform extract of 5. muliglanduosa leaves, after repeated chromatography, have yielded four dimeric anthranoids. ...

this thesis effective direct torque control for a five phase induction motor with concentrated windings is designed. For demonstrating the superior performance of the five-phase IM, the motors are analyzed on the d1-q1 and ...

The purpose of the study was to investigate the disciplinary problems of students in selected secondary schools in Arada Sub-city. A descriptive survey research was used to achieve the purpose of the study. On top of ...

The purposes of the study were to exposure disciplinary problems of secondary school students in Private and Mission secondary schools in A.A, to forward possible solutions for the identified problems and to, show effective ...

For crop cultivation development in Ethiopia, recontextualizing the discourse of indigenous farming knowledge is needed. Thus, the central purpose of this thesis is, through recontextualization process, to explore the ...