As a result of the pandemic lockdown, most Faculty, Staff, and students in Nigerian universities were unable to learn online because of irregular power and internet unavailability. As a major concern to the Nigerian Deans of Engineering, a study was commissioned by the Deans to identify the extent of the problem with a view to identifying the research and development areas and proffer an indigenous solution to the problems identified. This paper discusses the results of an online survey administered during the lockdown to a stratified sample size from the over 80,000 engineering students' population in Nigeria. The initial results showed that there is need to develop some form of a costeffective but modular and mobile integrated boosted internetready power system suitable for teaching, learning and research which is always-on both day and night for learning.
The principal objective in geotechnical testing is to know the properties and behavior of soil as an engineering material. The performance of soil in engineering practice is greatly influenced by the natural environmental conditions and conditions imposed by construction of structures. The aim of soil testing is to obtain reasonably representative values of the soil properties that are reliable and have direct and significant bearing upon the solution of the practical problems involved especially in various aspects of civil engineering. This important more so that Nasarawa State is relatively young with high prospects for growth and development. Several representative samples taken at an average depth of 1.25 m have been studied within a 48 km 2 area with the view of establishing geotechnical properties of the soils around Nasarawa-Eggon and its environs. The study involves some geotechnical testing of soils such as Sieve Analysis, Atterburg Limits (Liquid, Plastic and Shrinkage Limits), Consolidation, Compaction, Bulk Density, and Specific Density. The results of geotechnical testing shows Plastic Limit (PL) value of 23.70% and a corresponding Plasticity Index (PI) of 21.20%. The highest bulk Density and specific gravity values of soils are 22.25 KN/m2 and 2.68 respectively while the Sieve Analysis indicates particles sizes vary between o.1 to 1.5 mm.
The geological study involves field mapping of the lithological units and the geological structures of the area of Mangun, Plateau State. The investigation reveals the following rock types: migmatite-gneiss, porphyritic biotite granite, medium-coarse grained biotite granite, older basalt and laterized older basalt. The granites belong to the older granite series. The geological structures include: joints, foliation, quartz veins and quartzo-feldspathic dykes. The rocks are highly fractured while some are foliated due to the tectonic activities that took place after their emplacement. Field observation shows various soil types: clay, saprolite, kaolin and laterites-of varying composition, texture and colours. In order to produce a reviewed geological map of the study area, it is required that a geotechnical analysis of representative samples be carried out in order to determine the properties of soils and rocks in the study area and to delineate same for various engineering and geotechnical purposes.
A study of the engineering properties of the subsurface soil in the Greater Jos Master Plan development area has been carried out to address the paucity of engineering data in the area. The study became necessary because the rapid urbanization has led to limited construction land with more ground prone to instability due to reworking by mining and related activities. The study area is located within Latitudes 09º 48' 20'' to 09º 53'20''N and Longitudes 08º 53' 54'' to 08º 57 '00'' E and extending over 54km2 on Naraguta Sheet 168NE. Surface geological mapping was carried out to confirm the existing geology. Geotechnical properties of soils were determined by analysis of soil samples for 38 locations. While 94 static water level measurements provided additional information on groundwater conditions. The area is underlain by the Jos-Bukuru Complex rocks predominantly biotite granites differentiated on the basis of mode of formation, mineralogy and texture. Soils derived from weathering of the rocks revealed gradual decomposition from gravel, sand, and silt-sized particles to lateritic clays. The soils are considered to have low to medium plasticity/compressibility, expansiveness, and swelling potential across all rock types. The static water table depicts fluctuation in the water table varying between 2.9 and 3.9m. These findings are expected to serve as guide in the choice of design and construction and as a baseline subsurface soil compendium for planning and urban development in the Greater Jos Master plan and for further studies.
The trending definition of the computer architecture course involves the teaching/delivery of instruction set architecture design, micro architecture design, logic design, and implementation. Historically, the RISC vs. CISC wars raged in the 1980s when chip area and processor design complexity were the primary constraints and desktops and servers exclusively dominated the computing landscape (Patterson D.A & Ditzel D.R, 1980). Today and particularly in developing economies like Nigeria, energy and power pose the primary constraints to architecture design and the computing landscape is significantly different occasioned by growth in tablets and Smartphone's running ARM (a RISC ISA) is surpassing that of desktops and laptops running x86 (a CISCISA). Furthermore, the traditionally low-power ARM ISA is entering the highperformance server market, while the traditionally high-performance x86 ISA is entering the mobile low-power device market.ICT has given rise to a host of legal and ethical issues and challenges in the use of ICT for education. All array of both teaching and technical staff as well as students need to know to a reasonable extent about the issues and challenges in the use of ICT for education (Ogbomo. E.F, 2011). It has been severally been suggested in various academic climes of the need for teachers and students to be above reproach as succinctly put by Crossley. S.A. & McNamara, D.S, 2021 ‘in understanding the basic issues (effectiveness, cost, equity, and sustainability), as well as the challenges (infrastructure related challenges, capacity building challenges, challenges related to financing the cost of ICT use, to mention but few) surrounding the use of ICT in education and then apply those issues as principles in practice’. The essence of this study is to attempt presenting the appropriate methods in which ARM X86, CISC and RISC can be taught with ease for students in Nigerian Universities to the effect that Institutions lack adequate number of computers and relevant ICT accessories and/or soft and hardwires in laboratories. The methods which was used initially was making use of Projectors for the students in their class rooms and the use of microphone speakers to teach the students in addition to having to cope with extended lectures periods as a result of downtimes. The hindrances notwithstanding, when this method was initiated students had a better theoretical understanding of ARM X86, CISC and RISC because as in agreement with the submission of Bhandarkar. D&Clark. W.D, 1991; in order to achieve results better comprehension and quicker understanding by Students, videos were deployed as lectures were on-going to augment the prospects and constraints of the teaching and delivery of computer architecture. When various methods (Wireless LAN (WLAN), computers/laptops, and other technologies were taken into cognizance, in the teaching and practical delivery of computer architecture, it was observed that the students’ comprehension and understanding of the Reduced Instruction Sets of Computers and the Complex Instruction Sets of Computers showed remarkable improvement.
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