We Welcome LatestResearch Articles inthe Field of Engineering and Technology

In this study, response surface methodology (RSM) was applied to optimize the conditions during the acetone-butanol-ethanol (ABE) fermentation of hydrolyzed boiled corn cobs to produce biobutanol using Escherichia coli (E. coli). The species of corn used was SUWAN-1-SR and High-Performance Liquid Chromatography (HPLC) was used to find the proportion of biobutanol in the fermentation process…

Very Large Crude-Oil Carriers (VLCCs) often operate outside design conditions, affecting energy efficiency and emissions. This study investigated the impact of waves on added resistance and seakeeping of VLCCs in the Gulf of Guinea. Using numerical simulations, we evaluated added resistance for speeds between 10-14 knots under varying wave periods and vessel drafts. The study…

There is a need to improve conditions of poor loading margin from electric utilities to avoid unallowable bus loading limits. In this study, the Trans-Amadi 33kV Distribution Network in Port Harcourt, Niger Delta, Nigeria was investigated using the continuation power flow algorithm. Load parameters were considered as declared variables with loading trends at an incremental…

The fundamental step needed for planning and optimizing any wireless network during its early phase of deployment involves the estimation of radio coverage. Fifth generation (5G) telecommunication systems in Nigeria are in their early stages; hence, there is a need to develop effective mobile coverage prediction models with high accuracy and minimal complexity. In this…

Incorporating blends of some waste materials in soil improvement efforts could alleviate the problems of excessive soil compressibility. This paper presents the results of compressibility parameters of two expansive soils (peat and marine clays) stabilized with a blend of lime and marble dust in various percentages. One dimensional consolidation test was conducted to determine the…

Developing a hybrid microgrid system will support efforts at providing sustainable electricity to rural communities without access to electricity from the national electricity grid in Nigeria. This study considered the design and analysis of a hybrid microgrid system for Okorogba community in Nembe, a coastal settlement in suburbia of Bayelsa State, Niger Delta region of…

By concentrating sensitive information in one location, traditional centralized data processing increases the vulnerabilities of Wireless Sensor Networks (WSNs) to data interception, tampering, unauthorized access, and privacy issues when transmitting sensitive data. Implementing a decentralized machine learning approach would benefit efforts at mitigating these vulnerabilities. In this study, the federated learning approach—a decentralized machine learning…

Traffic issues including delays and congestion, particularly at intersections, are because of the massive rise in private vehicles along Port Harcourt roadways. Any highway traffic crossroad presents a complex negotiation. This occurs when vehicles traveling in several directions try to use the same space simultaneously. The surge in the use of private cars has made…

Calibrating three-hole probes before using them to obtain measurement data from turbomachines has become imperative. Calibration of the three-hole probe prior to its use in any turbomachinery measurement is crucial due to manufacturing inaccuracies during production. This study presents the calibration of a three hole probe used to measure the performance of a suction wind…