• Performance Analysis of Linear Precoding for Multiuser Multiple-Input and Multiple-Output Broadcast Channels 

  Worku, Tamene (Addis Ababa University, 2023-09)

  Multiuser Multiple Input and Multiple Output is an antenna technology for wireless communication in which number of users or wireless terminals each with one or more number of antennas communicate with each other. Precoding ...
• Techno-economic Comparison of Mid-band 5G Fixed Wireless Access and GPON-based Optical Distribution Networks 

  Tujuma, Bayisa (Addis Ababa University, 2023-06)

  The popularity of broadband Internet services has increased significantly over the past few years. Similarly, the development of mobile network technologies has seen rapid growth. Due to these trends, Fifth Generation (5G) ...
• Hybrid Microwave and Free Space Optics Network for Mobile Backhaul Capacity and Availability Improvement 

  Mulugeta, Semu (Addis Ababa University, 2023-06)

  With the growing demand for high speed mobile data and the increasing use of smart devices, the existing microwave (MW) or radio frequency (RF) backhaul network is going to be a bottleneck for end users data volume ...
• Performance Analysis of Energy Efficiency Ensuring Techniques In Massive Mimo For 5G Communication Networks 

  Haile, Araya (Addis Ababa University, 2023-09)

  Wireless communication technology is increasing to satisfy the needs of customers. With the emergence of new technologies, energy consumption is one of the most important performance metrics. According to the requirements ...
• On the Performances of User Association Enhancements in Dense Wireless Heterogeneous Networks 

  Dinkisa, Aga; Yihenew (Addis Ababa University, 2023-03)

  User Association (UA) plays a signi cant role in radio resource management of wireless communication systems. Currently, network densi cation and heterogeneity have already been identi ed as a feasible solution for the ...
• Production of Antidandruff Shampoo from Ziziphus Spina Christi (Qurqura) and Myrtus Communis (Ades) Extracts 

  Bethelhem, Tilahun (Addis Ababa University, 2023-06)

  Ethiopia is rich in different plant species, but most species are underutilized. In this research, indigenous Ziziphus spina Christi (Qurqura)(ZSC) and Myrtus communis (Ades) (MC) plants have been selected for the production ...
• Numerical Simulation and Performance Investigation of Bubble Pump Refrigerator 

  Henok, Habte (Addis Ababa University, 2023-10)

  Approximately 30% of the primary energy consumed worldwide is used for refrigeration. In light of the global search for sustainable energy sources and energy-efficient methods of operation, solar-powered bubble pump ...
• Experimental Analysis of Biogas Production from Seven Types of Feedstocks (Mown Grass, Food Waste, Chicken Manure, Cattle Blood, Cattle Rumen Content, Pig Manure, and Cow Dung) 

  Henok, Girma (Addis Ababa University, 2023-07)

  The significance and role of biogas in energy production and waste management are growing fast. The most determining factor for the gas composition and microorganism community in biogas production is the type of feedstock ...
• Testing of Improved Biomass Cook stove (Tikikil and Mirt) in Rural Households of Southern Ethiopia Using the New Field Testing Standard: The Case of Gamo Zone 

  Tibebu, Kumilachew (Addis Ababa University, 2023-07)

  This study has been carried out in the Gamo Zone of Ethiopia with the aim of evaluating the performance of household biomass cookstoves in actual field settings in kitchens. Both Tikikil and Mirt cookstoves were distributed ...
• First-Principles Study Of Van Der Waals Heterostructures of MoSeTe/ZnO for Investigating Photocatalytic Water-Splitting and Photovoltaic Applications 

  Derese, Abraham (Addis Ababa University, 2023-06)

  Two-dimensional (2D) heterostructures have allowed for the development of novel properties with interesting applications in photocatalytic water splitting and optoelectronic devices. Electronic properties of ZnO and Janus ...
• Designing A Solar PV Powered Reverse Osmosis Desalination System Using Rosa to Clean Lake Basaka Water 

  Bethlehem, Terzu (Addis Ababa University, 2023-07)

  The freshwater shortage is an issue concerning safe water supply. The availability and usage of fresh water are critical for human health as well as economic and ecological stability. The continual increase in salinity ...
• Numerical Simulation of Sampling Capabilities of Spiral Trajectory and Echo-Planer Imaging in Magnetic Resonance Fingerprinting 

  Samuel, Melke (Addis Ababa University, 2023-01)

  Magnetic Resonance Fingerprinting (MRF) is a novel method proposed to solve the limitations of quantitative Magnetic Resonance Imaging (qMRI). One of the ways MRF accelerates data acquisition is by using various sampling ...
• Human Activity Recognition using Machine Learning 

  Rediet, Desalegn (Addis Ababa University, 2023-08)

  Human activity recognition is a broad field of study concerned with identifying the specific movement or action of a person based on sensor data. It can improve people’s well-being by automatically assessing and summarizing ...
• Automatic Image Analysis for Bone Age Determination 

  Andualem, Wube (Addis Ababa University, 2022-12)

  Bone age evaluation is commonly performed through radiological assessment of the skeletal development of the left hand, and then is compared with the chronological age. However, despite the time taking process, such ...
• Investigating and Automating Ethiopia's Radiation-Generating Medical Device Inspection System 

  Alemu, Niguss (Addis Ababa University, 2022-04)

  Ionizing radiation is energy in the form of wave or particles that have enough energy to remove electrons from the atoms. Since this radiation imposes a deterministic and stochastic effects on human being, the source needs ...
• Numerical Analysis of the Effect of Surface Finish and Material Properties on the Carburized Moly Based Low Alloy Material Subjected to A Contact 

  Yibeltal, Ali (Addis Ababa University, 2022-10)

  Contact between rough surfaces between surfaces affects a variety of phenomena including friction, wear, thermal contact resistance, and electrical contact resistance. Different studies done on the mechanics of contacting ...
• Utilization of Crushed Ceramic Waste Tiles as a Partial Replacement of Coarse Aggregate in Cement Concrete Making 

  Temesgen, Kassahun (Addis Ababa University, 2023-02)

  The main goal of sustainable construction can be greatly advanced by using waste materials in the production of concrete. Ceramic materials are being used more frequently in new projects as electrical insulators, sanitary ...
• Optimization of Cutting Parameters for Milling Enset Fiber Reinforced Epoxy Composite 

  Abebe, Muluye (Addis Ababa University, 2022-04)

  Machining of composite materials is accompanied by fiber pullouts, fiber breakages, delamination of laminates, matrix burnings, which degrades quality and performance of the product. These challenges able to be reduced ...
• Citrate Stabilized Magnetic Nanoparticles (Fe3 O4 ) for the Removal of Pb 2+ Ions in Wastewater 

  Solomon, Mamuye (Addis Ababa University, 2022-06)

  Water contaminations by heavy metals are a major environmental problem due to their acute toxicity and their accumulation in food chains. One of such toxic heavy metals is Pb 2+ ions. In this study the synthesis of ...
• Multi-objective Optimization of Post-tensioned Pedestrian Bridge 

  Metasebia, Dabi (Addis Ababa University, 2021-09)

  Multi-objective design optimization of post-tensioned box girder pedestrian bridge is presented in this study. The proposed design optimization incorporates some behavior and side constraints specified by the AASHTO ...

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