Graphene has attracted world-wide attention due to its intriguing set of properties. However, the production of graphene on the bulk scale remains a significant challenge which is limiting its uptake in applications, particularly composites. The exfoliation of graphene in solvents using ultrasonic energy is the most promising approach to-date for the large scale production of graphene flakes. The process relies on a good interaction between the graphene and the solvent used. This interac...
ABSTRACT Mycotoxins are low-molecular weight secondary metabolites produced by fungi, mostly of the phyla Ascomycota and Basidiomycota. They are noncritical to the instantaneous survival of the organism, and mostly affect its long-term survival. Fungal growth is enhanced by the warm, humid atmosphere and organic substrate-rich soil, such as exists in Nigeria, and they massively infect Nigerian plants and livestock. One consequence is reduced agricultural yield, which leads to food short...
ABSTRACT Keywords Monosodium glutamate; histopathology; female infertility; ovaries: sprague- dawley rats Fear has increased in recent years, due to the adverse reactions and toxicity of monosodium glutamate (MSG) which is commonly used as a food additive and there is growing concern that this may play a critical role in both male and female infertil...
ABSTRACT The nutritional and chemical constituents of different extracts of Neem leaf (Azdirachta indica) and their effect on the haematology and histopathology of Wistar Albino Rats were investigated. The samples analyzed includes processed and unprocessed leaves extract of Neem plant using cold water, hot water, 40% ethanol, 30% methanol,...
Heavy metals were analysed in Osun River (Nigeria) between 2017 and 2018. Concentrations of the heavy metals were in the increasing order: Fe > Zn > Cu > Mn > Pb > (Ni, Cr) > (Cd, Co). Iron made up 76% of the total heavy metals measured. Activities at Swanlux Farm (a major oil palm farm) seemed to impart on Osun River as the highest Fe concentration (2.55 mg/L) was measured near the farm. In the urban settlement, average zinc concentration was almost double (0.37 mg/L) of that found in the pr...
Abstract The geochemical classification of granitic rocks in the Gwada area of Niger State, North Central Nigeria was carried out. The methodology adopted for the research consists of fieldwork and geochemical analysis of rock samples using XRF at Nigerian Geological Survey Agency, Kaduna. Field evidence suggests that, the Gwada area mapped is largely underlain by highly weathered Schist and Granites. The granites occur as an intrusion into the highly weathered Schist in the study area. The g...
ABSTRACT Nuclear Medicine is a medical specialty that allows modern diagnostics and treatments cancer using radio pharmaceuticals original radio-tracers (drugs linked to a radioactive isotope). Radio-pharmaceuticals are considered a special group of drugs and thus their preparation and use are regulated by a set of policies that have been adopted by individual member of countries. The radio-pharmaceuticals used in diagnostic examinations are administered in very small doses. So...
Socioeconomic determinants of infants mortality rate in Zaria LGA of Kaduna ABSTRACT Infant mortality remains high in Zaria Local Government and beyond despite the various policies that have been implemented by the authorities to reduce it. Although studies have examined various factors that explain infant mortality, effects of infant mortality and causes of infant mortality has been rarely explored. The study finds out socio-demographic strength of the respondents, causes of infant mortalit...
ABSTRACT A drastic change in the perception of electric energy . But at the same time there is misreading of FREE ENERGY. Energy becomes free only at a point after which we don’t have to pay for power generation after hiring the unit. By using the magnetic force of magnets continuous motion (Energy) is made. This magnet also produces a magnetic field, so both the magnetic fields repel each other (like poles repel), which reasons the fins to move. The free Energy Generator was mounted in...
Trigonometry (from Greek trigōnon, "triangle" and metron, "measure"[1]) is a branch of mathematics that studies relationships involving lengths and angles of triangles. The field emerged in the Hellenistic world during the 3rd century BC from applications of geometry to astronomical studies.[2] The 3rd-century astronomers first noted that the lengths of the sides of a right-angle triangle and the angles between those sides have fixed relationships: that is, if at least th...
Contents 1 General Introduction 1 1.1 Background of Study . . . . . . . . . .1 1.2 Integral Equation . . . . . . . . . .......2 1.2.1 Fredholm integral equation . . .3 1.2.2 Volterra integral equation . . . . 4 1.3 Polynomials . . . . . . . . . . . . . . . . . 4 1.4 Orthogonal Polynomials . . . . . . .5 1.5 Chebyshev Polynomials . . . . . . . 6 1.5.1 Chebyshev polynomial of the first kind Tr(x) . . . . . 6 1.5.2 Chebyshev polynomial of second kind Ur(x) . . . . . 6 1.5.3 Chebyshev polynomials...
There is a crucial need in the mainland regions of Nigeria to enhance the development of wind technology and engineering, which is essential for the designing of Wind Energy Conversion Systems (WECS). The Weibull Probability Density Function (PDF) with two parameters is widely accepted and commonly utilized for modelling, characterizing and predicting wind resource and wind power, as well as assessing optimum performance of WECS. Therefore, it is paramount to precisely estimate the scale and ...
ABSTRACT In this project work, we have established a systematic study of z transform and its analysis on Discrete Time (DT) systems. The researcher also deal with Linear Time Invariant (LTI) system and Difference Equation as examples of DT systems. The right and left shift was use as a method of solution of the z transform to linear difference equation. CHAPTER 1 �...
In this project i have explored the use of Information Communication and Technology to help students have access to learning resources such as course content online, downloadable materials. With the learning management system we designed and implement. Students can download materials to be read online or offline. It involves redefining the importance of e-learning, design issues and strategies to promote interactivity and active learning, learning support, policy and management issues. E-lear...
This project was aimed at developing an online book-bank monitoring system in Makerere University. The responsibility of monitoring book-banks in Makerere University is vested in the main library and is executed by the Bank-Bank section. It was intended to address the current problems encountered in using a manual system to monitor the activities of the book-banks. The study covered three book-banks namely; Faculty of Computing and IT, Faculty of Law and Department of Adult Education and Comm...