Energy efficiency is one of the most important challenges for Wireless Sensor Networks (WSNs). This is due to the fact that sensor nodes have limited energy capacity. Therefore, the energy of sensor nodes has to be efficiently managed to provide longer lifetime for the network. To reduce energy consumption in WSNs, a Modified Energy Efficient Clust... Continue Reading
High-density polyethylene composites of date seed powder were prepared at filler loadings of 0 to 40wt%. The particle sizes of the date seed powder investigated were 72, 125, 150 and 180?m. Calcium carbonate was used as a reference filler. The high- density polyethylene composites were prepared in a two-roll mill machine and the resulting composite... Continue Reading
The field experiment was conducted during the 2011 dry season at the Irrigation Research Fields of the Institute for Agricultural Research (IAR), Samaru, Nigeria, to evaluate yield and soil water balance of two cowpea varieties under deficit irrigation and mulch using locally assembled weighing- type micro lysimeter. The treatments comprised of thr... Continue Reading
This research focused on the production of furfural from microalgae biomass and optimizing the process parameters using Response Surface Methodology (RSM). Furfural production was carried out by hydrolysis of Pentosans to Pentoses where Pentosans in hemicelluloses is hydrolyzed with dilute mineral acids and NaCl as a promoter at relatively low temp... Continue Reading
The generation of electric power using different fuel resources to meet load demand and losses while satisfying various constraints on the system involves high running cost (cost of fuel). Therefore, it requires electric utilities to minimize the cost of production of electric power by planning and dispatching generating units in an economic and ef... Continue Reading
A fixed bed pyrolysis system has been designed and constructed for obtaining liquid fuel from palm kernel shell. The major components of the system are: fixed bed reactor and condensate unit. The palm kernel shell in particle form was pyrolized in an externally heated 90mm diameter and 360mm high fixed bed reactor. The reactor is heated by means of... Continue Reading
The major problems of most wireless technologies such as EDGE, HSPA, WiMax, HSPA+, WiFi G, WiFi and LTE are the imbalance of radio resources allocation as well as unfairness and difficulty to achieve unity index. These result in overstressing the networks while leaving some idle. This imbalance of resources amongst the networks brings about poor qu... Continue Reading
High signaling load due to location management (LM) scheme in Long Term Evolution (LTE) Networks is a major quality of service issue due to the significant amount of resources consumed by this scheme. This scheme needs to be managed efficiently to guarantee seamless connection to any user on the Network at any time. Increasing trends of connected m... Continue Reading
Biological systems usually consist of large number of components and involve processes at a variety of spatial, temporal and biological scales. This study presents a framework for model identification and the use of Global Sensitivity Analysis (GSA) in systems biology modelling and shows how the information content of clinical data from Short Insul... Continue Reading
Public water supply is distributed through water pipe network, which affects the quality of water that gets to the consumers when the integrity of the pipe distribution network is compromised. Hence, this study aimed at investigating and modelling water quality deterioration in the distribution network of Kaduna Metropolis. In order to achieve this... Continue Reading
This research aimed at the development of a modified real-time fault-tolerant task allocation scheme (mRFTAS) for wireless sensor networks (WSNs), using active replication backup techniques. In WSNs, the sensor nodes are at risk of failure and malicious attacks (selective forwarding) and this can have a profoundly negative effect on real-time WSNs.... Continue Reading
The study was conducted during the dry season in 2016 at the Irrigation Research farm of Institute for Agricultural Research, Samaru, Zaria, to determine the effect of deficit irrigation and mulch on yield and water use of Cucumber crop. The experiment consisted of four levels of moisture depletion at 0%, 25%, 50%, and 75% (I100, I75, I50, and I25)... Continue Reading
This dissertation is a report of the investigation carried out on the Probabilistic analysis of reinforced concrete columns subjected to corrosion. Corrosion of reinforcement bars is one of the most significant causes of deterioration of reinforced concrete columns. The deterioration leads to a loss of serviceability, functionality and ultimately a... Continue Reading
Spent primary batteries are known to contain metallic compounds that could be of value if recycled as well as harmful to man and the environment if not properly disposed. Also, the recovery of these value metals from the used batteries can reduce limited natural resource (ore) depletion. This research was carried out to investigate the recovery pot... Continue Reading
The study was conducted on communities along Lamurde floodplain between Latitude 8?52’0” and 8?56’6” and Longitude11?19’0” and 11?22’8”. The study areaoverlain the shallow well fieldswhere public water supply system and main private water vending were extracted to service the entire Jalingo city. Sample points were selected among th... Continue Reading