Cassava is an important staple food for many smallholder farmers in Sub-Saharan Africa. Indeed, it is the second most important crop next to Maize in Zambia. However, its productivity is low as a result of declining soil fertility and low levels of fertilizer application. As evidenced from...
Adipose tissue and bone marrow-derived stem cells have been extensively investigated for their applicability in the field of tissue engineering due to their multi-lineage differentiation potential. However, work on bovine-source adipose tissue and bone marrow-derived stem cells have been limited in...
Ecological Study of Wattled Crane (Bugeranus carunculatus, Gmelin 1789) in the Boyo Wetland of Southern Ethiopia and Afroalpine Ecosystems of Bale Mountains National Park, Southeast Ethiopia rnHadis Tadele, PhD Thesis, Addis Ababa University, 2018 rnWattled Cranes (Bugeranus carunculatus) are the...
Some processing parameters like viscosity, fermentation time, baking time and other have an effect on the overall quality of injera. In this study, experiments were conducted to determine how viscosity affects weight of injera, which is an important injera criteria especially in the Injera bakery...
The title for this research is Assessments of knowledge sharing: the Case of Ethiopian Broadcasting Corporation. The objective of this study is to assess the knowledge sharing practices among employees and promote the best knowledge sharing practices for the media house at cooperation. The study...
Human-wildlife conflict exists in different forms all over the world and experienced more in developingrncountries. In Basso Woreda of North Shoa Zone wild animals compete for resources with the localrncommunity resulting in conflict with each other. Therefore, this study was conducted to...
The target area (Koka and Becho plains) are situated in the upper reach of the AwashrnRiver basin, geographically, Koka plain located between 38.750 – 39.120E and 8.380 –rn8.760N and Becho plain is located between 38.190 – 38.610E and 8.540 – 9000’N. Thernmain...
Bridge is one of the most important components of railway line for development ofrntransportation. It is known that Addis Ababa light rail transit project constructionrnstarted two years ago. Also the construction of national railway project started. Inrnthese projects, the construction of bridges...
The thesis presents analysis of rolling contact fatigue at the wheel-rail interface using FEM. The aim of the thesis is to determine the stress/strain and predict the fatigue life at the wheel-rail rolling contact by considering the effect of rolling contact coefficient of friction and track...
Modern transport and freight distribution system all over the world are tending towards thernadoption of best practices those are reliable, timely and cost effective. Multimodal transportrnbetween road and rail, also known as combined transport, has received a large interest in recentrnyears as...
Freight transportation is an essential component of any economic activity which makes arncontinuous change as a result of growth but many economic activities depend on traffic congestionrnand truck travel time along the origins and destinations which makes series problem mainly forrnland locked...
Addis Ababa is one of the fastest growing cities in Africa and urbanization is known to increase the amount of runoff generated from the urban catchment. Due to urbanization and lack of proper design and management, the cities transport infrastructure has experienced frequent flooding. The...
The principal objectives of this research are to develop a model to project duration based on actual executed amount and to check the validity of Bromilow’s principle for Ethiopia Railway Corporation (ERC) projects. This study mainly focuses on ERC projects that are under construction and...
Public mass transportation systems have become an important part of major economic activities in developing cities. The initial high construction cost of urban rail transportation calls for the efficient utilization of the existing infrastructure and estimation of its maximum capacity. A reliable...
There is an extensive effort by Ethiopian government to expand railway infrastructure throughoutrnthe nation. To achieve the strategy, the railway projects are contracted to foreign contractors duernto lack of experience and knowledge of local contractors in railway construction. Therefore,...
In railways, level crossings are safety-critical points because of the risk of collisions between motorcars and trains. Since electrified railway transportation system is a new technology to our country Ethiopia, it is mandatory to use intelligent means of accident prevention by detecting obstacles...
Level crossings have been identified as a particular weak point in road and railway infrastructure. Installing efficient and reliable level crossing signaling system ensures the safe operation of the railway network. As most of its subsystem and components are working in open atmospheres, its...
The purpose of this thesis is concerned with the comparison of FLT and RHEDA2000 ballast-less Track-form with respect to their dynamic performances. The comparison is done based on the analysis of the simulation results and it would be achieved via FEM software (ABAQUS). The analysis have been done...
In Ethiopia water pumping system is given less concern regarding to energy saving and in groundwaterrnmanagement. The amount of groundwater recharging is affected by many factors like seasonal rainrnvariation, global warming, drought and also groundwater withdrawal. This changes significantly...
Water shortage is very noticeable in semi-arid parts of Ethiopia where there is hardly anyrnfreshwater source at all. Currently, the most interesting method of getting sustainablernalternative potable water by harvesting humid from air is continuously under researchrnaround the globe. This study...