Conference/Workshops/Seminar Proceedings

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    Advanced technology and new approaches to teaching information literacy at the universities in a developing country context: Challenges and the way forward
    (Department of Library and Information Science, University of Botswana, 2022-04-25) Adeyinka, Tella; Onyebinama, Colette
    The study examined, advanced technology and new approaches of teaching information literacy at the universities in a developing country context: challenges and the way forward. The study adopted a qualitative approach. Five universities in Nigeria were purposively sampled for the study. Observation, document analysis, and review of literature were conducted. Documents reviewed include the existing curriculum on information literacy courses in Nigerian universities. The findings revealed that the face to-face method is the most common method used by most of the universities in Nigeria to teach information literacy instruction, and it is currently complemented with technological tools and platforms such as tablets, Google classroom, Microsoft team, Moodle, Online forums like yahoo and Google forums, among others. Contents of discussion focus mostly on the use of word processors, PowerPoint presentations, excel, and some minor applications on laptops or desktop computers, sending and receiving mails, troubleshooting computer problems, and the likes. The library instruction contents found in the curriculum include information about libraries, their meaning, the arrangement of the materials, and access to the materials. Advanced information technology such as Artificial intelligence, the Internet of Things, Machine learning, Virtual/Augmented Reality, and Robotics are now being used to teaching information literacy. Power failure, inadequate access to laptops, tablets, and Android phones, and inadequate funding are identified as challenges associated with using advanced technology to teach information literacy.
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    Exploratory study on the potential of coal fired power plant for energy production in Nigeria
    (Department of Electrical Engineering, University of Nigeria, Nsukka, 2013-02) Obiukwu, O.; Okozi, S.
    Nigeria’s industrialization is dependent on the utilization of its energy sources. In Nigeria, as in many developing countries, providing energy to rural and urban areas has proved to be a great challenge. At present, the energy consumption estimate in Nigeria is reaching 19.21billion KWh and is still rising. To counter this, the estimated generated energy, presently is 3,500MW which is insufficient to handle the Demand. This is quite low and alternative means have to be proposed. This paper looks at the potential of technologies to convert coal into fuels that can be used directly in place of gasoline and diesel. A power generating plant is proposed, which uses coal, which is in ample supply of about 396 Million Metric tons, as a feedstock. The plant is expected to use the Gasification technology, which converts solid coal to its synthetic gas form, which is further used to power Gas turbines for power generation. Its generating capacity is 750MW and has a Configuration of 2*2*2*1. This implies that it has 2 operating gasifiers/ cleaning system, 2 combustion Turbines, 2 Heat Recovery Steam Generators and 1 steam turbine.
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    The effect of surface finish on the low cycle fatigue of medium carbon steel
    (Federal University of Technology, Owerri, 2024-10) Obiukwu, O. O.; Nwafor, O. M. I.; Okafor, B.; Osueke, G.
    As fatigue cracks initiate predominantly at the free surface of a material, the condition of the surface can be assumed to be critical with regards to fatigue strength. The features of a mechanically prepared surface which are considered to be major factors affecting fatigue strength fatigue are stress concentration (a shape factor), dimension (a scale factor), and surface finish (a technological factor). This paper investigates the effect of surface finish on the fatigue life of AISI/ SAE 1040 (medium carbon steels). A compositional analysis was performed to ascertain the percentage of carbon in the materials. The specimens were machined to a precise gauge length and diameter and exposed to various surface finishes mainly; polishing and grinding machining surface conditions. A fatigue test was performed with the use of Avery Dennison and bending stress was obtained using the curve supplied with the machine. The results from the machine were converted to Mega Pascal (MPa) and the values used to plot S-N curves. The fatigue resistance for the specimens at various surface finishes of the different carbon steels was thus established. The results show that the polished surface with surface roughness (Ra = 0.20microns) has the longest fatigue life.