bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparative Studies of Response Surface Methodology (RSM) and Predictive Capacity of Artificial Neural Network (ANN) on Mild Steel Corrosion Inhibition using Water Hyacinth as an Inhibitor
Authors: Okewale A. O. , Omoruwuo F. , Adesina O. A. 
Published: December 2019

AbstractResponse surface methodology (RSM) and artificial neural network (ANN) on modeling and optimization of corrosion inhibition efficiencies of mild steel using water hyacinth as an inhibitor was carried out in this work. The optimization of the process was done using generic algorithm (GA) and RSM which were subsequently compared. The optimum inhibition efficiency predicted were 87.675924% and 82.89% by ANN and RSM respectively. The value of R2obtained were 0.9695 and 0.85118 for ANN and RSM models respectively while RMSE values of 3.90 and 4.3089 were gotten for RSM and ANN models respectively. The model regression indicated that RSM best fit the experimental data thus perform better on mild steel corrosion inhibition.
Characterization of a Finned Heat Sink for a Power Inverter
Authors: Onoroh F. , Adewumi O. O. , Ogbonnaya M. 
Published: December 2019

Abstract
Heat is a by-product which is constantly being generated in the operation of a power inverter and if left unchecked will inevitably lead to the damage of the device. Hence a means to efficiently dissipate this heat has to be employed. In this research, a heat sink is mathematically modelled and its thermal performance was evaluated using ANSYS software and experimentally validated. The optimisation of the heat sink was done with the aid of the FMINCON optimization tool in MATLAB. A K-type thermocouple and a three channel temperature logger, MTM-380SD, with real time data logger were used to obtain temperature data of the heat sink for the purpose of experimental validation. The optimized heat sink parameters are heat sink length and width, number of fins, base thickness, fin height, thickness and spacing. Results show that the percentage deviation between the simulation and experimental temperature results for a pulse load of 300W is 8%, for a pulse load of 460W is 3%, for a pulse load of 600W is 8%, for a pulse load of 1015W is 2%. The maximum simulated and experimented temperatures are 84°C and 85.4°C. Thus the inverter can be safely and reliably operated.
Corrosion propagation challenges of mild steel in industrial operations and response to problem definition
Authors: Sunday Isaac Fayomi Ojo , Patricia Idowu Popoola Abimbola 
Published: December 2019

AbstractThe continuous use of mild steel in major industrial operations is ever uprising due to many engineering factor in materials selection. This mini review gives a cogent corrosion perspective of mild steel, its problem definition and responses for safety and technological progress purposes.
Surface protection progresses: A paradigm shift on composite deposition and matrixes
Authors: Sunday Isaac Fayomi Ojo , Patricia Idowu Popoola Abimbola 
Published: December 2019

AbstractIn searching for solutions to minimize the challenge of metallic corrosion, surface treatment becomes profitable tool. Electrochemical deposition has, over recent decades, evolved from an art to an exact science. This development is seen to be responsible for the ever-increasing number and widening types of applications of this branch of practical science and engineering. Composite and nanocomposite alloys have been the focus of interest for many manufacturing systems, a great curiosity started with automobile industry, food industry, aeronautic and aerospace industries, where the weight to density fraction was of necessity. This paper seeks to unveil deposition novel engineering materials and technology by various author.
Development Of An Improved Pepper Grinding Machine Using Stainless Steel
Authors: Edun B.M , Ayodele Noiki , Afolalu S.A 
Published: December 2019

Abstract
A prototype of a new improved pepper grinding machine was designed using locally available materials to solve the problem of metal contamination, corrosion effect from machine parts and the manual means of applying water among other problems associated with the conventional pepper grinding machines that are used in Nigeria. It is designed to reduce noise pollution and to enhance the hygienic processing of pepper as well as individual entrepreneur for rendering milling services in the neighborhood and market place thereby creating employment for Nigerians. Food crops like tomatoes, cowpeas, maize and soybeans can also be milled using the machine. The machine consists of a hopper, water tank, 2hp electric motor, frame, shaft, bearing, grinding plate, the driving and driven pullets, v- belt, water sprinkler, discharge chute and water tap. The peppers are meant to be loaded into the hopper and to be collected through the discharge chute. The water from the water tank is being regulated by the tap and sprinkled on the pepper through the perforated pipe at interval depending on the speed of the machine. The average grinding capacity and grinding efficiency were determined as 2kg, 3kg, 4kg, 5kg, 6kg and 85% respectively. There was a significant difference (p< 0.05) between the grinding capacity and efficiency of the machine with water sprinkler and that of manual watering. The grinding capacity and efficiency of the machine with water sprinkler was higher when compared to the grinding capacity and efficiency of manual watering. The machine was observed to perform effectively and therefore, recommended for domestic and commercial use by the grinders in the market place.
The Effects of Heat Generation on Cutting Tool and Machined Workpiece
Authors: Ogedengbe T.S. , Okediji A. P. , Yussouf A. A. , Aderoba O. A. , Abiola O. A. , Alabi I. O. , Alonge O. I. 
Published: December 2019

Abstract
Metal cutting processes usually cause heat generation at the cutting zone (around the workpiece-tool intersection). The heat generated during these processes may cause different effects on both the workpiece and tool, this in turn may affect the finished product and the general performance of the machined piece. In this study, a review was done on various types of machining conditions available, effects of heat generated on the workpiece and tool, and the approaches adopted to reduce this heat at cutting zones. This study also focuses on the simulation of percentage ratio of heat removal. To handle the simulation, various approaches of heat removal methods were used to get the percentage ratio using the ansys version 19.1 software. It was discovered that heat generation causes two major types of wear on the tool, crater and flank wear, resulting in the reduction of cutting tool life as well as dimensional inaccuracy, surface damage and severe corrosion cases on the workpiece. Various heat reduction methods and coolant application types were as well studied and their merits and demerits were discussed.
Synthesis and characterization of PSF/PES composite membranes for use in oily wastewater treatment
Authors: Rameetse M.S , Aberefa O.A , Daramola M.O 
Published: December 2019

Abstract
Environmental sustainability requires development of environmentally benign and energy efficient technology for treatment and disposal of wastewater. Membrane technology has emerged as a highly viable method for water treatment throughout the years. However, their limited commercial application has prompted a lot of researchers to explore different approaches to modify the membranes to enhance their performance. Polymer blending is one of the modifying techniques currently being explored to develop materials with unique anticipated properties depending on the type of membrane needed. This technique has shown improvement in the quality of the membrane by enhancing the mechanical strength as well as the performance of the membrane. In this study, blended polysulfone (PSF) and polyethersulfone (PES) membranes were synthesized at different PSF:PES ratios (100%:0%, 0%:100%, 50%:50%, 80%:20%, 20%:80% and 25%:75%) using N-Methyl-2-pyrrolidone (NMP) as a solvent via the phase inversion method. The quality and integrity of the membranes were checked via Scanning electron microscopy (for morphology); Thermogravimetric analysis (for thermal stability), Atomic force microscopy (for surface nature) and nanotensile measurement for mechanical strength. The flux, % rejection and porosity as the performance criteria of membranes showed a massive improvement in majority of the blended membranes than in pure PES and PSF membranes. AFM images indicated lower roughness in the pure PSF membrane as compared to the blended membranes. The tensile strength only improved on the 25%:75% membrane while the elasticity increased with an increase in PES concentration in the blended membranes. These results demonstrate the diversity of blending polymeric membranes to modify specific properties for desired function and highlight the possibility of more commercial application.
The Impact Of Technological Innovation On Production
Authors: Fayomi O. S. I. , Adelakun J.O , Babaremu K.O. 
Published: December 2019

AbstractTechnological Innovation which implies the development of new thoughts, items, administrations, and procedures that will improve technology solutions has provided a better lifestyle by improving the standard of living in the area of production. Due to the rapid developments made by humankind in terms of scientific and technological innovations, which signaled the industrial revolution, and growth of mega-industries across the turn of 20th century which although lead to an increase in standard of living, coupled with an unprecedented economic growth rate and a rapid increase in population growth rate around the world, has led humanity to stretch and put serious strain on the natural resources and environmental limits of the earth. The deficiencies in production has gradually been combated but it was discovered that innovation from technological bearing has played a significant role in the productivity outcomes of most production processes. This paper focuses on brief views on technological innovation and the impact of construction technology, agriculture technology, biotechnology, nanotechnology and health biotechnology on production
Disaster Management: A Perspective From Production Processes
Authors: Fayomi O. S. I. , Babaremu K.O. , Adelakun J.O 
Published: December 2019

Abstract
In most production and manufacturing industries, the occurrence of disasters during production processes it worthy of note. Production takes place regularly on a daily basis via various processes that makes up for a complete production chain. These processes are often not well followed, hence leading to disasters. These disasters lead to a lot of damage in the industry as well as losses, sometimes, death occurs. The occurrence of these disasters could be as a result of accident, negligence or incompetence. There are other surrounding factors too. This paper is to focus on an overview of disaster related to production process. The attributes include: Disaster Management Function (prevention and mitigation), Time of disaster (before, during and after), Type of Disaster (accidents, fire). This paper under the mitigation area, describes the collaboration of Higher Education with the industry in educating workers and firms involved in production concerning the importance of disaster management. It is a field of study that should never be overlooked by any firm into production processes.
Performance Evaluation of Abia Clay with Natural Polymers in Water-Based Drilling Fluid Development
Authors: O Jimoh M. , Salawudeen T. O. , Arinkoola A. O. , Daramola M. O. 
Published: December 2019

Abstract
The quest for local content in the oil and gas industry for sustainability of materials and resources has necessitated further research on the use of Nigerian clays and locally sourced materials as additives in drilling fluid formulation to substitute the imported bentonite and synthetic additives currently used in natural oil and gas exploration. In this study, Uturu clay was treated using NaOH, NaHCO3, KOH and NaCO3 to improve its suitability for drilling fluid formulation. The clay sample was characterized using particle size analyzer (for particle size distribution), X-ray diffraction (for purity and crystallographic patterns), Fourier Transform infrared for surface chemistry. Water-based drilling fluid was developed using the characterized Uturu clay as the main composition and other four locally source natural polymer namely cassava starch, breadfruit starch, bush mango seed and corn fibre as rheology modifiers. It was found that clay treatment did not have significant effect on spud mud rheology. Clay characterization reveals that the untreated clay consists mainly of montmorillonite with traces of kaolinite and quartz. Preliminary drilling fluid formulation shows that rheological properties were significantly improved with the addition of the natural polymers. In addition, the rheological data were best described using power law model. Further optimization study is required to achieve optimum formulation comparable to the American Petroleum Institute recommendations and this investigation is ongoing in our lab and results will be communicated in another article.
Thermo-decompositional Analysis of Sawdust Blends of Invasive Alien Plants
Authors: Okoro N.M. , Harding K.G. , Daramola M.O. 
Published: December 2019

Abstract
This study examined the effect of blending two invasive wood species of distinct physical and chemical properties, maximum char yields and rates of decomposition, on their thermal behaviour towards sustainable production of energy. To evaluate their potential use for production of briquettes/pellets, an examination of the dynamic thermogravimetry of sawdust blends of bugweed, a low density, fast-growing fibrous invasive shrub with eucalyptus wood was conducted. Individual blends in ratios of 50:50 (BUG50), 30:70 (BUG30) and 70:30 (BUG70) were tested under a pyrolysis condition and also in oxidized atmosphere to examine their combustion behaviours at a constant heating rate. Results were compared to individual results of 100% bugweed sawdust (BUG100) and 100% eucalyptus sawdust (BUG0) as control. The pyrolysis test on the blended samples reveal an increase in maximum char mass yield of up to 17% from that observed in BUG100. Meanwhile, amongst all blends, BUG70 exhibited the least maximum char yield of 34.9% and the highest ash residue of 4.3%. The high ash residue in BUG70 was believed to distort its char combustion. The lowest maximum peak rate of volatilization achieved amongst all blends was 6.6%/min by BUG50 and that of the char decomposition was as low as 2%/min for BUG30. Remarkably, the peak and final decomposition temperatures of all three blends occurred at higher temperatures than those of BUG100, in the pyrolysis test. Results of their combustion tests conducted, reveal thermograms with profiles similar to those observed during the pyrolysis tests. However, there was a general decrease in the peak and final combustion temperatures from those observed during the pyrolysis test of the samples. BUG30 exhibited good char combustion stability across a wide temperature range and at higher combustion temperatures than BUG50 and BUG70. No significant differences were observed in the heating values of all samples tested.
Prediction of Emissions and Profits from a Biomass, Tyre, and Coal Fired Co-Gasification CHP Plant Using Artificial Neural Network: Nigerian and South African Perspectives
Authors: Ozonoh M. , Aniokete T.C. , Oboirien B. O. , Udeh B.C. , Yoro K.O. , Daramola M.O. 
Published: December 2019

Abstract
The local sourcing of feedstock for energy generation will reduce costs in the power plant, and promote energy sustainability. Most times, potential investors in this area show interest about understanding the profitability of the business because, the information boosts the confidence of the investors in the project, and gives them the opportunity of making a short and long term plans about the business. The emissions arising from the energy plant is an important aspect of the venture that requires proper attention, otherwise the costs of emission control may consume a greater part of the profit, hence rendering the business un-viable. Nigeria and South Africa (SA) have abundant biomass (e.g. corn cob, sugarcane bagasse, & pine saw dust) coal and tyre that can be used as fuel in an energy plant. A 10 MW CHP plant was fired with coal and biomass, and tyre obtained from Nigeria and South Africa (SA) respectively, at ratios of 1:1, 3:2, and 4:1 to study the emissions and profits in the plant. An empirical model was employed to estimate the annual amount of feedstock and feed rate required for the plant, after which, an artificial neural network (ANN); Levenberg-Marquardt algorithm was used to predict the emissions and profits in the plant for 20-year-investment period with feedstock costing (WFC) and without feedstock costing (WOFC). The profit obtained from the South African feedstock, WFC and WOFC; produced about 45.18 % and 36.83 % ($3, 900, 000.07 and $3, 179, 184.49) higher profits than the Nigerian feedstock, but the CO, NOX, & SO2 emissions from Nigerian feedstock were lower than that of SA. The findings from this study could be used as a platform for decision making by potential investors and stake-holders, and further research and development in the area.
An Overview of Corrosion Inhibition using Green and Drug Inhibitors
Authors: Fayomi O S I , Akande I G , Nsikak U 
Published: December 2019

Abstract
Corrosion has been a predominate problem for industries ranging from oil and gas to automobile. Various methods have been utilized to combat this phenomenon, some methods have causes great environmental effect that are harmful to humans. This has necessitated the use of green corrosion inhibitors. This review paper delves into the subject matter and reports the inhibition efficiency of green corrosion inhibitors that have been used for combating corrosion, because of their eco-friendly nature.
Brief review on cathodoluminescence application in solid-state devices
Authors: Emetere M.E , Abodunrin J.T , Fayomi O.O , Iroham C.O 
Published: December 2019

Abstract
In this review, the chronological advances of solid state lighting (SSL) alongside the theoretical predictions was examined. The discussion includes its crystallographic orientations, substrate growth, colour rendering, misfit dislocations, quantum well fabrication, stacking fault and energy efficiency. It has been discovered that the challenges confronting the potential of SSL devices may not just be ambient temperature of the operating environment or the safe limits of the blue/white-light hazard. This paper sheds lighter on the physics responsible for the SSL white lighting, wave function lapping at different crystallographic orientations and stress relaxation limits of quantum well (QW) heterointerfaces.
Studies of the In-Situ Epoxidation of Rubber (Hevea Brasiliensis)Seed Oil by Performic Acid
Authors: Obanla O.R. , Udonne J.D. , Ajani O.O. , Ojewumi M.E. , Omodara O.J. , Oni B.A. 
Published: December 2019

Abstract
Studies on the epoxidation of rubber (Hevea brasiliensis) seed oil, a renewable source with formic acid was performed in the presence of 30% hydrogen peroxide at a of temperature 40, 50, 60, 70 °C. The process is favoured by an increase in temperature forming a product with high oxirane content which is as a result of mole ratios of formic acid and hydrogen peroxide. Products of high oxirane content are commercialy viable in the production of polyvinyl chloride (PVC). Natural rubber and other products can be obtained from this in- situ technique. Studies in this research shows that the rate of epoxidation increases with an increase in temperature.Oxirane values of 2.30, 3.62 and 4.73 for the various temperature. However high oxirane content of 6.22 was obtained at 70 °C which is in line with literature. FTIR analysis was also carried out on the epoxidized rubber seed oil which shows the peaks of oxirane cleavage.
Development and Performance Evaluation of Thermostat Controlled Rotary Dryer for Agricultural Produce
Authors: Adeodu A. O. , Akinola S. O. , A Daniyan I. , Akinlosola D. O. , R Oloyede O. , O Alufa O. 
Published: December 2019

Abstract
Drying is ubiquitously used operation that improves on storage life of agricultural produce, either solid, liquid or slurry. Most dryers with relatively advanced technologies are expensive while the cheaper ones are manually regulated. This paper aimed at development of a direct and con-current rotary dryer that uses rolling action with hot air to effectively remove moisture from materials. The machine consists of a hopper as passage into dryer, dryer shell, heater housing, product discharge unit, shell flight, air blower for hot air distribution, thermostat for temperature regulation, temperature probe to sense the temperature from the heater as well as variable speed electric motor for power transmission. The novelty of the design is the integration of temperature regulator to the heating unit to make it thermostat-controlled. The materials for the design were selected based on strength, availability and economic value. The design calculations were done using existing machine design theories to obtain relevant design parameters. The performance evaluation showed that the machine is capable of drying various agricultural produce, say rice and yam from their initial moisture content levels of 85 and 75 % to 10 and 7 % final moisture content level respectively, at the rate of 1.2 kg/hr with the inlet air temperatures of 120° C for yam and 135 ° C for rice with humidity of 0.015. The use of machine would help to regulate drying temperature and reduce the need to manually monitor the drying process thus relieving mostly rural uses some effort in labour.
Workshop Queue System Modification Through Multi Priority Strategy
Authors: Okonkwo U. C. , Okokpujie I. P. , Odo B. N. , Fayomi O. S. I. 
Published: December 2019

Abstract
This research focused on the modification of a queuing system in a workshop practice that repairs crankshafts using multi priority strategy. The random distribution of the inter arrival time of the crankshafts as well as the service time were statistically determined using Chi square goodness of fit test. The results obtained show that all the classes conform to Poisson distribution. For the non-preemptive priority, the mean waiting time in queue results for the first, second and third classes are 0.066, 0.09 and 0.224 day, respectively, while for the preemptive priority the three classes show 0.007, 0.036 and 0.258. Besides, the mean waiting time in queue for no priority system is 0.17 day. Arrivals that are of higher priority classes in preemptive priority systems enjoy huge improvement when compared with non-preemptive system. On the other hand, the improvement gained in higher priority classes has detrimental effect on the low priority class. Similar scenario plays out when the results of the mean waiting time in the system was analyzed. It is therefore advocated that priority strategy should be adopted for a system that may have urgent or semi-urgent jobs among the pool of jobs that needs repair to avoid possible losses arising from frequent reneging or balking of such jobs.