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Hydrodynamics Instability Around Compact Object In SdS background Thesis

Nehemiah Estifanos (2016)

The success of general theory of relativity (GR) over a wide range of astrophysical observations is the manifestation of progress in astronomy and astrophysical studies. Whilst, there are encouraging past success of GR ...

Assessing the current practices of teaching physics in the preparatory schools at kersa woreda and jimma town Thesis

Nasir Ababor (2016)

The purpose of this study was to investigate the practices of teaching used by physics teachers in physics course of studies to enhance students’ performance at preparatory schools at Jimma Town and Kersa Woreda. To ...

An Assessment of Psycho-social Driving Factors on Illegal Migration from Southern Nations Nationalities and Peoples to South Africa: A Case of Shinshicho Town. Thesis

Temesgen Amare; Aberra Degefa; Asayeberhan Kastro (2019-06)

The issue of illegal human migration has become one of the alarming issues in Ethiopia as it is highly prevalent in Southern Nations Nationalities and Peoples, Kembata_Tembero Zone Shinshicho Town Administration. Many ...

Statistical Distribution of the Formation of Compact Objects in the Milky-Way Galaxy Thesis

Bikila Teshome (2019)

The issue of galactic dynamism and structure is one of the top astrophysical research area. There is a progress both theoretically and observationally. Here, we examined one of the standard statistical approach called ...

Nonlinear Optical properties of ZnO cylindrical quantum wire using parabolic confining potential Thesis

Maru Zewude; Menberu Mengesha; Nebiyu Gemechu (2018-06)

One of the most intensively explored classes of semiconductor structures is the class of quantum wires. With the advances in semiconductor growth techniques it is possible to fabricate quantum wires of different sizes ...

Excitation Function of Neutron Induced Reaction on Barium Isotopes for Neutron Energies Below 20MeV Thesis

Kebede Shogile; A.K. Chaubey; Chali Yadeta (2018-06)

In this work, neutron induced reactions on barium nucleus (134 56 Ba − 136 56 Ba) in different energy regions were theoretically studied. The nuclear reaction cross sections for five reactions namely, 134Ba(n; 2n)133Ba, ...

The Rate of Star Formation in Galaxies Thesis

Ahmed Musa (2019-01)

The physics of star formation that includes the processing agents and environmental conditions are fundamental issues in astrophysics. Observational data of nearby galaxies, over broad range of galactic environments and ...

Thermoluminescence behavior of Y2Sio5 : Ce3+ phosphor in view of second order kinetics Thesis

Temesgen Wolde; Nebiyu Gemechu; Meberu Mengesha (2020-02)

This work covers Thermoluminescence(TL) behavior of Y2SiO5 : Ce3+ phosphor in second order kinetic. Theoretically show that T L intensity verses temperature with important T L kinetic parameters . To investigate the ...

First principle calculation of the structural and electronic properties of cobalt using quantum espresso package Thesis

Tamiru garuma; Menberu mengesha; Nebiyu gemechu (2020-02)

In this thesis, the electronic structural properties of Cobalt (Co) was investigated with the density functional theory by using Quantum Espresso Package. The generalized gradient approximation (GGA) was used to compute ...

First Principle Calculation Of Gallium Nitride Using Quantum Espresso Package Thesis

Tamiru Shomore (2020-02)

Gallium Nitride is a wide band gap semiconductor belonging to group III-V. It is commonly used in light emitting diodes (LED) and many optoelectronic devices fabrications. However its electronic and structural properties ...

The Role of One Proton Charge Excess in the Cross Section for the Formation and Decay of Compound Nucleus by α emission Thesis

Negash Ahmed; Taklemariam Tessema (2018-06)

This research work have been done for the completion of MSc. degree in physics (Nuclear physics) under the title ”The Role of One Proton Charge Excess in the Cross Section for the Formation and Decay of Compound Nucleus ...

Coherently Driven Degenerate Three-Level Laser With Parametric Amplifier In A Vacuum Reservoir Thesis

Kassaw Nigussie; Tamirat Abebe (2020-02)

In this thesis, we have investigated the squeezing and statistical properties of light produced by coherently driven degenerate three-level laser with parametric amplifier for the cavity mode coupled to a vacuum reservoir ...

Effective Dielectric Constant of periodic Composite Material with spherical Inclusion Thesis

Bayou Mamo (2020-02)

We have studied the optical properties of nanospherical metal inclusions in dielectric host matrix. Both analytical and numerical methods are employed for analyzing this nano composite system. The real and imaginary part ...

Dynamics of non-degenerate three level laser in a closed cavity and coupled with two-mode vacuum reservoir Thesis

Wodito woldemariam (2020-02)

In this research, we have studied the squeezing and statistical properties of the cavity light beams produced by a dynamics of non-degenerate three-level laser in a closed cavity and coupled with a two-mode vacuum reservoir ...

Effect of various kinetics parameters on thermoluminescence peaks and electron concentration in traps Thesis

Shamil Esmael (2020-01)

In this thesis, before we were going to study these effects on thermoluminesce peaks, the phenomenon of both luminescence and thermoluminesce as well as the types of luminescence were explained. we study theatrical and ...

Factors associated with Khat Chewing and Its consequences among Youth in Jimma Town Thesis

Bediru Habib; Zenebe Negawo; Eshetu Geda (2019-10)

The study was intended to investigate factors associated with khat chewing and its consequences among youth in Jimma town. The total participants of the study were 155 selected from Jimma town. Among total participants, ...

The behavior of reaction cross section with proton projectiles on different isotopes of molybdenum to produce technetium Thesis

Lijalem Tezera (2020-02)

In the present study the behaviour of reaction cross section of Technetium production with protons as projectile on different stable isotopes of Molybdenum with its importance had been studied. The theoretical reaction ...

Thermal Stimulated luminescence of ZnO With Linearly Heating Rate Thesis

Lemi Jabessa; Nebiyu Gemechu; Meberu Mengesha (2020-01)

In this work, we have employed for the analysis of thermoluminescence TL glow curves of Zinc oxide ZnO materials. The continuous promotion in numerical methods has greatly helped to solve the complex Thermoluminescence ...

Propagation of electromagnetic waves in left-handed media Thesis

Baro W/Gebreal; Menberu Mengesha; Nebiyu Gemechu (2020-01)

In this thesis, we discussed briefly about the artificial material properties which exhibited simultaneously negative values of electric permittivity, magnetic permeability and refractive index across a common frequency ...

Particle Tri-axial rotor model calculation of Lowlying states in three odd-mass isotopes Of osmium Thesis

Gashaw Dejene (2018)

Level energies, gamma transition energies and intensity branching ratios for low-lying states of negative parity low-lying rotational bands of three odd mass Osmium isotopes ,175,177,181Os, were calculated within particle ...

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