Browsing by Author "Yahaya, Suleiman Abimbola"

Now showing 1 - 8 of 8
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    Design of Low-Cost Vehicle for Nigerian Rural Farmers for Transportation of Farm Produce
    (Journal of Research Information in Civil Engineering, 2016) Abdulrahman, Kamardeen Olajide; Yahaya, Suleiman Abimbola
    The paper highlights various problems associated with the transportation of agricultural farm products by Nigerian rural farmers and discussed the classification of intermediate means of transportations (IMTs) and the common types of low-cost vehicles available. The research led to the design of an improved low-cost vehicle that is designed to be affordable, efficient and easy to maintain using locally sourced materials. The improvement in the design of the low-cost vehicle is seen in it compatibility, provision of roof cover, engine location at the rear, tilting of the trailer container, provision of more comfortable seats and the use of locally sourced materials for it construction.
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    Development and Performance Evaluation of Pot-in-pot Cooling Device for Ilorin and its Environ.
    (Journal of Research Information in Civil Engineering, 2018) Yahaya, Suleiman Abimbola; Akande, Kareem A
    Pot-in-pot cooling device is basically a food cooler that utilises the effect of evaporative cooling for its intrinsic mechanism to preserve drugs, fruits and vegetables in a hot and dry climate. The performance of the cooler was examined in this experiment when the lining media was changed from sand to charcoal and sawdust as well as considering the meteorological data of Ilorin. The cooling effects of three pots of the same geometry bearing different lining media were compared. The pots were set up and observed for 59 days from 8:00 am to 6:00 pm, and the performances were recorded. The device performs well under low relative humidity. The lining media that holds water necessary for evaporative cooling is the primary factor that was used to determine the performance of the pot-in-pot cooling device in this research. It was found that the three inner temperatures for the three lagging materials were significantly different. Under all three conditions, Charcoal (mean efficiency of 75 %) provides better results than sand (mean efficiency of 66 %) and sawdust (mean efficiency of 58 %).
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    Development of an automated healthcare record management system
    (Faculty of Engineering, Adeleke University, Ede, Nigeria, 2019) Yahaya, Suleiman Abimbola; Jilantikiri, L. J.; Hassan, K. A; Akande, K. A; Yahaya, A
    This project focused on improving mobility for a blind person by creating an obstacle and pit detecting walking stick using ultrasonic sensors. The project comprised of both hardware and software. The hardware consists of ultrasonic sensors, buzzers and a microcontroller, while the software consists of Arduino Integrated Development Environment (Arduino IDE), which was used to program the microcontroller. A Polyvinyl Chloride (PVC) casing was used to house the hardware components. The ultrasonic sensor that detects obstacles was programmed to detect obstacles at a distance of 100 cm or below and causes the buzzer to sound so as to alert the blind person. Another ultrasonic sensor was programmed to identify pit at a depression of 18 cm and above. This stick was tested to detect obstacles by 80 different blindfolded individuals within a room with different objects placed at different positions. Results showed that the percentage reduction of collision rate when comparing the developed ultrasonic walking stick to a normal white cane is 90.1%. This shows that the ultrasonic walking stick is reliable for domestic use by a blind person.
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    Effect of Set-Up Heights on the Performance of Pot-In-Pot Cooling System for Storing Food and Drugs at Ambient Temperature
    (FUOYE Journal of Engineering and Technology, 2019) Yahaya, Suleiman Abimbola; Kareem, Akande; Aisha, Raji; Kamardeen, Abdulrahman Olajide; Ibrahim, Idris Enagi
    The research aimed at evaluating the effect of set-up height on the performance of earthenware pot-in-pot cooling system. The pots were set up at different heights; H1 (0 m), H2 (0.5 m) and H3 (1 m) and observed for 59 days from 8:00am to 6:00pm daily. The inner temperatures obtained from the three different arrangements were determined using standard methods. The result showed that increasing the height from ground level (0 m) to 1 m increases the mean cooling effect by 8 %. Generally, it was observed that only the set-up height at 1m proved to have maximum efficiency of the pot-in-pot system performance.
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    Investigation of Optimal Components and Parameters of the Incremental PCA-based LSTM Network for Detection of EEG Epileptic Seizure Events
    (Faculty of Science, Gombe State University (GSU), Nigeria, 2023-12) Saminu, Sani; Jabire, Adamu Halilu; Aliyu, Hajar Abdulkarim; Yahaya, Suleiman Abimbola; Iliyasu, Adamu Yau; Ibitoye, Morufu Olusola; Xu, Guizhi
    Prediction of Epileptic seizures is highly imperative to improve the epileptic patient’s life. Epileptic seizures occur due to brain cells excessive abnormal activity that leads to unprovoked seizures and may occur without prior notice. Therefore, preventive measure that monitor and alert the possible occurrence of the seizures is paramount. Commercial and clinical available epileptic seizure computer aided detection system that utilized deep learning algorithms suffers from many challenges. These challenges ranges from low accuracy and precision, sensitive to artifacts and noise, among others. To enhance and increase the accuracy and optimal performance of these networks, this paper endeavor to investigate various optimization algorithm to optimized the network components and parameters in the developed incremental Principal Components Analysis based Long Short-Term Memory (Inc-PCA-LSTM) network for the detection and classification of Electroencephalograph (EEG) epileptic seizure signals based on the big data scenario. The model proved to be effective in the characterization of seven seizure events. The Adam, Elu, Orthogonal, and L1/L2 performed better than their counterparts in optimization functions, activation functions, initialization functions, and regularisation techniques respectively. The accuracy values of 97.5%, 97.5%, 98.4%, and 98.5% was obtained for each of the mentioned core components receptively.
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    Microstructural and Mechanical Properties of Failed Coupling with an Airlock in a Flour Mill.
    (IAEME, 2018) Abdulrahman, K. O.; Adediran, A. A.; Abraham, A; Abdulkareem, S; Olawale, M. I.; Yahaya, Suleiman Abimbola
    In the present work, we report the microstructural and mechanical properties of failed coupling with an airlock in a flour mill. The coupling which was made of aluminium alloy is used to transmit torque from the electric motor to an airlock used on a flour mill production line. The fracture that occurred at the root of the teeth of the coupling was investigated using various tests and analysis. The tests includes: macro examination, micro-structural examination, composition analysis, hardness and tensile test were employed for this investigation. From the tests carried out, it was observed from the macro examination that the coupling undergoes a brittle failure. However, composition analysis revealed a relatively high weight composition of aluminium (87.5 wt. %) suggesting that the coupling was made of aluminium based alloy. The significant presence of Cu and Zn at 2.77 wt. % and 1.03 wt. % respectively indicates that the alloying elements were mainly of copper and zinc. The tensile test result revealed that the material has an ultimate tensile strength of 178 N/mm2 which is comparatively lower than most aluminium alloys. This might be as a result of the high Si composition of 7.24 wt. % observed from the chemical compositional analysis. The hardness result showed the Brinell hardness of the fractured samples as 76.53 BHN. The microstructure of the coupling at three different sections gave three different micrographs, further proving uneven distribution of the aluminium alloy element. Thus, the presence of Si at relatively high percentage, often intended to increase the strength, wear resistance and weldability may be detrimental to the coupling ductility and tensile strength and may have contributed to the early fracture of the coupling.
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    Productivity Standards and Resource Utilization Monitoring System: A Concept to Hospital Management in Nigeria.
    (LAUTECH Journal of Engineering and Technology, 2014) Akande, Kareem A; Yahaya, Suleiman Abimbola
    Cost savings can be realized in hospitals through the proper utilization of employees to optimize labor cost since labor costs average over half of the expenses of a typical hospital. The health care management is often left to subjective feelings in evaluating the proper relationship between staffing and workload without a logical, systematic approach to productivity measurement. With proper training and understanding, the Resource Utilization Monitoring System (RUMS) can become a valuable tool in evaluating these relationships. There is no much evidence in the literature that productivity standards is often used as a planning and control tool of human resources in the administration of hospitals in Nigeria. The purpose of this paper is to explain how to determine productivity standard and the development of RUMS; and to explain their applications as a planning and control tool of human resources management of the hospitals costs centers in Nigeria.
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    Static Fatigue Analysis on the Load Container of a Low-Cost Vehicle for Nigerian Rural Farmers.
    (Nigerian Journal of Technology (NIJOTECH), 2018) Yahaya, Suleiman Abimbola; Abdulrahman, Kamardeen Olajide
    Static fatigue analysis was done on the container of a model low cost vehicle for Nigerian rural farmers to determine how well the container has been designed and its resistance to notable deformation or damage, based on the load it was subjected to. The static analysis performed involved the fixing of the container in areas where it is made to rest on the chassis. Finite element analysis of the vehicle container was conducted in two loading conditions. The result from the analysis gave a factor of safety of 4.36 for the load container at a maximum displacement of 0.131 mm and a factor of safety of 4.65 for the load container and a maximum displacement of 0.136 respectively for the two loading conditions. These maximum displacements, which can be negligible shows that the load container is well designed as the maximum stresses are above the hand calculated maximum stresses.