Existing millet threshers have not been performing up to expectation. Based on this, the physical properties of pearl millet grains were determined and used to design an axial-flow millet thresher. The length, width, thickness, geometric diameter, sphericity, surface area of the grains were found to decreased with decrease in moisture content of th... Continue Reading
Minimum cost of multicast is the process of finding the node transmission cost such that the total cost of bandwidth used for sending messages from source to any destination nodes is minimized. The Network Coding Algorithm(NCA) was developed using linear programming framework by considering packets delay as the only key performance metrics. This re... Continue Reading
This research work investigates the effect of gasification operating parameters, namely: equivalence ratio (ER), gasification agent, reaction zone temperature, and residence time on quality of syngas produced using sawdust.The research experiments were conducted using a pilot scale downdraft gasifier with constricted throat and a rotating grate. Te... Continue Reading
Conventional flexible pavement road surfacings are failing due to increasing automobile traffic and heavy axle loading. In order to overcome the challenge, researchers and road authorities have used various materials as modifiers or reinforcements to improve on the properties. This research presents the rheological properties of High Density Polypr... Continue Reading
Large volumes of wastewater are generated in Nigeria from industrial activities which often cause water pollution when they are not properly treated before being discharged into receiving water bodies. The conventional wastewater treatment plants are expensive and associated with high running and maintenance cost. These plants are also associated w... Continue Reading
The current wave of collapse of building structures all over the world including Nigeria necessitates the need to carryout research on the properties of the construction materials. Concrete and sandcrete hollow blocks are major construction materials used in the building industry. The objective of this study is to determine the properties of sandcr... Continue Reading
The Reliability Analysis of a Prestressed Concrete Beam (PCB) was presented using First Order Reliability Method and Eurocode 2 procedures to carry out the analysis. The results show that the safety of the PCBin bending decreasedfrom 2.9 to 1.0 and 3.1 to 2.6 as prestress force and the depth from the extreme compressive fiber to the neutral axis of... Continue Reading
In this thesis the reliability analysis of reinforced concrete bridge decks subjected to high cycle fatigue was undertaken. A simply supported (single span) reinforced concrete bridge deck was specifically used for the investigation. The statistical models of capacity loss were derived. The uncertainties in structural resistance and the applied loa... Continue Reading
Roles of water balance components in any agro-ecological system are indispensible for most physical and physiological processes within the soil-plant-atmosphere system. The performance of two agro-hydrological models: the Soil-Water-Atmosphere-Plant (SWAP) and Irrigation Scheduling Impact Assessment model (ISIAMOD) in simulating soil water balance ... Continue Reading
This work presents the finite element analysis (FEA) of the requirements of compression reinforcements in raft foundations using ABAQUS. The model helps to confirm and provide a valuable supplement to the theoretical design. For validation, a reinforced concrete raft foundationis modeled whichis conventionally designed according to Eurocode 2 (EN 1... Continue Reading
IAR groundnut sheller was developed in 1985 and the design was based on the properties of the then groundnut variety known as Ex-Dakar. New varieties were later developed whose acceptability in practice override, this called for its modification and determination of the characteristics of new varieties.The machine size was modified resulting in the... Continue Reading
This study was undertaken to identify the factors responsible for declining of sugarcane production in Savannah Sugar Company (Dangote Group). Soil samples were collected from the field within the irrigated plots P1, G2 and K2. The pH and EC were determined using the pH meter and EC meter, respectively while Ca,Mg and OM were determined using titra... Continue Reading
The study investigates the concentrations of CO, NO2, SO2, CO2 and HC arising mainly from the activities of motor vehicles on the ambient air quality of selected sites in Kaduna metropolis. The sites are situated in the Central market area, the Stadium Roundabout, and Kawo area. Others include Bakin Ruwa Junction, Abuja Junction, Sabon Tasha and a ... Continue Reading
The effect of mixing different plastic types on the product distribution of pyrolysed plastic wastes was successfully investigated. Samples of waste low density polyethylene (LDPE), high density polyethylene (HDPE), polystyrene (PS), and polypropylene (PP) were subjected to thermal pyrolysis giving non-condensable gases, liquid/wax and char as prod... Continue Reading
This research is a study of the structural performance of the asphaltic concrete pavement of the Zuba-Gwagwalada-Sheda section of the Lokoja-Abuja highway from chainage 1km+500m to chainage 29km+800m. A Pavement Serviceability Rating (PSR) was conducted, followed by a Pavement Condition Index (PCI) study. A Truck traffic study was then conducted an... Continue Reading