• Hyperspectral remote sensing for cropland assessment and modeling for agro-ecological zones: A case study of Taita Hills, Kenya 

  Boitt, Mark Kipkurwa (JKUAT-COETEC, 2022-07-27)

  This dissertation seeks mainly to provide an assessment of cropland characteristics in the Taita Hills. The objectives of this research are: Identification of crops using hyperspectral imagery, delineation of agro-ecological ...
• Effects of Partial Replacement of Sand with Sawdust and Fish Scales on the Properties of Concrete Blocks 

  Oluchiri, Timothy Ongino (JKUAT-COETEC, 2022-06-14)

  This study investigated the potential use of sawdust and fish scales as aggregates in partial replacement of sand in the manufacture of masonry blocks. Both sawdust and fish scales are by-products of industrial processes ...
• Sustainable Bioremediation of Soil Contaminated with Petroleum Sludge: A Case Study of Sultan Hamud. Kenya 

  Mulama, James Kiprotich (JKUAT-COETEC, 2022-06-07)

  Petroleum sludge is a residue extracted mostly from petroleum storage. Contaminants in petroleum sludge (heavy metals and hydrocarbons) may exist in the soil for long periods and may be transmitted to plants and tissues ...
• Influence of Project Management Practice on Performance of Public Housing Projects in Rwanda: A Case Study of the Rwanda Housing Authority 

  Nshimiyimana, Harouna (JKUAT-COETEC, 2022-06-07)

  The practice of construction project management remains ineffective in the implementation of public projects in Rwanda according to the Office of Auditor General’s reports; one rarely finds any public project completed ...
• Failure Prediction of Rolling Element Bearings Operated Under Non-Stationary Conditions 

  Mbagaya, Leila Lung’atso (JKUAT-COETEC, 2022-06-07)

  Bearings constitute a majority of the components found in rotating machines. Though inexpensive, their failure can result in unnecessary downtime, losses in production, and propagation of failure to other critical ...
• Fuzzy Logic Model for Preference of Parameters in Network QoE Analysis 

  Kihuya, Walter (JKUAT-COETEC, 2022-06-03)

  Two important Quality of experience (QoE) parameters in computer networks service related performance metrics are throughput and delay. A low delay indicates high network efficiency thus high throughput. Similarly, the ...
• Fuzzy Logic Model for Obstacles Avoidance Mobile Robot in Static Unknown Environment 

  Shitsukane, Aggrey Shisiali (JKUAT-COETEC, 2022-06-03)

  Autonomous mobile robot navigation has received a lot of attention from researchers. Traditionally, sensors are mounted on robots to detect the surroundings. However, they are sometimes inaccurate due to the pertinent ...
• Certificateless Signcryption for Wireless Sensor Networks 

  Kasyoka, Philemon Nthenge (JKUAT-COETEC, 2022-06-03)

  Wireless sensor networks (WSNs) have become popular in the field of information and communications technology, they are increasingly being used in applications such as surveillance systems, patient monitoring, object ...
• Segmentation via Principal Component Analysis for Perceptron Classification 

  Maneno, Khamis Mwero (JKUAT-COETEC, 2022-06-03)

  In today’s competitive environment, companies must identify their most profitable customer groups and the groups that have the biggest potential to become as such. By identifying these critical groups, they can target their ...
• Bayesian Estimation of the Survivorship Function for Censored Heterogeneous Data using Non-parametric Priors with Non-conjugate Dirichlet Processes 

  Nyambega, Henry Ondicho (JKUAT-COETEC, 2022-06-03)
• Geothermal heat sources characterization and mapping using heat flow, gravity, and magnetics in Eburru, Kenya 

  Nyakundi, Erick Rayora (JKUAT-COETEC, 2022-05-30)

  Eburru area is a geothermal heat prospect region in Kenya’s Rift Valley. The area is characterized by faults, fumaroles, geysers, volcanic craters, geothermal grass, and hot springs. Such surface manifestations indicate a ...
• Assessment of Selected Physico-Chemical Parameters of Water and Sediment in River Sio, Busia County, Kenya 

  Ondoo, Kevin Omondi (JKUAT-COETEC, 2022-05-30)

  Pollution of ground water sources continues to remain an area of great concern due to the fact that pollution places a restriction on water use hence leading to water scarcity; and at the same time places high treatment ...
• Effectiveness Of Construction Contract Procurement Processes In Public Projects In Kenya: A Survey Of County Government Projects 

  Owiti, Jacob Omondi (JKUAT-COETEC, 2022-05-26)

  Procurement process is an important dimension of project management component especially during pre-construction stages of any project. Globally, the economic worth of construction industry's contribution to the growth of ...
• Performance Analysis of a Mui Basin Coal Gasifier Based on Feed Oxygen, Water Concentration and Heat Regulation 

  Oyugi, Oyugi George (JKUAT-COETEC, 2022-05-24)

  Kenya depends mainly on electricity from hydroelectric power, which is unreliable due to climatic change, and thermal generators whose power is expensive due to high diesel prices. Innovative ways of providing affordable ...
• Simulation of Flow Over of a Gas Turbine Compressor Blade Running on Air and Syngas 

  Maina, Liz Wangui (JKUAT-COETEC, 2022-05-23)

  There has been an increase in demand for electricity globally. Gas turbines run ning on syngas are being used to generate electricity. This is because syngas is a renewable source of energy. As of 1999, General Electric ...
• Development of a Numerical Model of Syngas Expansion in a Gas Turbine Utilizing Mui Basin Coal 

  Muinde, Agatha Mbeni (JKUAT-COETEC, 2022-05-23)

  The global energy demand has been increasing over the years and is still expected to increase by 25% in 2040. The rise in demand is being accelerated by economic growth and industrialization of developing countries in ...
• Modeling Traffic Flow on Multi-Lane Road: Effects of Lane-Change Manoeuvre Due to Ramps and Weaving Sections 

  Ndungu, William Kuria (JKUAT-COETEC, 2022-05-12)

  Traffic breakdown is the main cause of vehicle traffic congestion in multi-lane roads due to highway bottlenecks such as lane-drops, on and off-ramps. In this study, the nature of traffic congestion and phase transition ...
• Development of a Performance Index for Building Construction Projects in Kenya 

  Mbugua, Magdaline Wamaitha (JKUAT-COETEC, 2022-03-28)

  Building construction projects in Kenya suffer from cost and time overruns as well as the frequent collapse of buildings. One of the major reasons why the construction industry is failing is the lack of measurement of the ...
• Optimisation of Motion and Force Transmissions in a Single-Toggle Jaw Crushing Mechanism 

  Mwangi, Joseph Kimani (JKUAT-COETEC, 2022-03-24)

  Jaw crushers are important mechanisms in quarries and construction sites used to reduce rocks and stones into aggregate materials for construction works. These crushers are also used in the mining industry to prepare the ...
• Behavioral Responses of the Melon Fly, Zeugodacus curcubitae (Conquillett, 1849) (Diptera: Tephritidae) to Host Plant Volatile Organic Compounds 

  Njuguna, Peter Kariuki (JKUAT-CoANRE, 2022-03-16)

  The Melon fly, Zeugodacus cucurbitae (Coquillett, 1849) (Diptera: Tephritidae), is a major pest of Cucurbitaceae but relevant field observations suggest that Solanaceous plants such as tomato have also become a major host ...

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