Natural & Applied Sciences

Research Papers/Topics in Natural & Applied Sciences

Analysis of Self-Organizing Map Algorithm

Artificial Neural Networks have proven to be very useful in areas that concern data mining. This research project borders on the use of kohenen self-Organising Map, a neural network based unsupervised, competitive learning algorithm that can seperate a given dataset of customers and their prefences into groups known as clusters. 

Results Computation System in Higher Institutions using PHP, HTML, CSS, MYSQL

Results Computation in Higher Institutions using PHP, HTML, CSS, MYSQLIntroductionA student’s result is the criteria for the measurement of the student’s capability in terms of academic work in the school. It is also used to measure a student’s capability in each course offered by the student. Without an adequate results computation system, the aim for which results are produced may not be achieved, because the slightest mistake made during the process might lead to a very big problem, ...

DETERMINATION OF ARSENIC, ANTIMONY, SELENIUM AND PHYSIOCHEMICAL PARAMETERS IN GROUNDWATER WITHIN IBADAN METROPOLIS

DETERMINATION OF ARSENIC, ANTIMONY, SELENIUM AND PHYSIOCHEMICAL PARAMETERS IN GROUNDWATER WITHIN IBADAN METROPOLISONI TAIWO OLIWAFUNMILAYOTABLE OF CONTENTSABSTRACTCHAPTER ONEINTRODUCTIONGround Water Quality Assessment   11.1.1 Significance of Water Quality Assessment 11.2 Groundwater Pollution         21.2.1 Sources of Water Pollution 51.3 Effects of Water Pollution         91.4 Sources of Arsenic, Selenium, Antimony in Groundwater  ...

SPECTROPHOTOMETRIC ANALYSIS OF ALPHA AMYLASE LEVELS AT STAGES IN THE RIPENING OF MUSA SPECIES

Alpha-amylases are starch degrading enzymes and their activities have been found to be the major change that occurs in the ripening of bananas and plantains. This study was designed to basically develop a simple spectrophotometric method to monitor some of the biochemical processes involved in the ripening of Giant horned plantain (Apantu), French horned plantain (Apem) and local banana (Abibifo mpua).The pericarp from five ripening stages was collected and alpha amylases were extracte...

DNA Computing

Abstract    DNA, the genetic code of life itself has been the molecule of this century and certainly for the next one. The future of DNA manipulation is speed, automation and miniaturization. Perhaps it will not be good enough to play games or surf the web, things traditional computers are good at, but it certainly might be used in the study of logic, encryption, genetic programming and algorithms, automata and lots of other things that haven’t even been invented yet!!  ...

EFFECT OF SHEA BUTTER (Vitellaria paradoxa) RICHDIET ON GENTAMICIN INDUCED NEPHROTOXICITY IN RATS

Abstract The effect of Shea butter rich diet on gentamicin induced nephrotoxicity in rats was determined. Thirty (30) male and female albino rats grouped into 6 (normal, negative, positive, 10%, 20% and 30% Shea butter rich diet groups respectively) of 5 rats each were used for the study. Phytochemical analysis was carried out on the Shea butter used for this study which revealed the presence of saponin, tannin, alkaloid, terpenoid, flavonoid, and reducing sugar, while coumarin was absent. N...

Investigation into the weathering layer using up-hole method of seismic refraction.

This paper is aimed at using up-hole method of seismic refraction survey to investigate the thickness ofthe weathering layer as well as the velocity of seismic waves through the layer. The first events to arriveat the geophones on a refraction profile had travelled by refraction along the top of the high speed zonejust below the weathering layer. Using the time- offset curves of the first arrivals for shots from differentcharge depths; the thickness of the weathering layer was calculated by c...

Integration of Aeromagnetic Data and Landsat Imagery for Structural Analysis: A Case Study of Awgu in Enugu State, South-Eastern, Nigeria.

In this study, digital format data comprising of aeromagnetic and remotely sensed (Landsat ETM+7) data were used for structural interpretation of the Awgu area in Enugu State, southeastern part of Nigeria, predominantly underlain by sedimentary rocks. Aeromagnetic data were analyzed using the Oasis Montaj 7.5 software and interpretation was carried out using the vertical and horizontal gradients, analytical signal, reduction to pole, tilt depth as well as Euler deconvolution. The total magnet...

Integration of Aeromagnetic and Landsat Data in the Analysis of Dump Site (Landfill) in Owerri, Imo State.

Magnetic study over South Eastern Nigeria was performed as part of a multi-technique geophysical investigation. Various magnetic data enhancement procedures such as, qualitative (second vertical derivative, total horizontal derivative, analytic signal, theta map, tilt derivative, total horizontal derivative of tilt derivative and horizontal tilt angle) and quantitative (Werner and Euler deconvolutions)  interpretation techniques were employed to determine their e...

Determination of subsurface rock properties from AVO analysis in Konga oil field of the Niger Delta, Southeastern Nigeria.

Amplitude variation with offset (AVO) analysis was carried out on Konga oil field, an onshore oil field in the Niger Delta, Southeastern Nigeria. The study consisted of forward modeling from rock parameters measured from well logs and AVO analysis of events on pre-stack time migrated 3D seismic gathers. Forward modeling predicted specific AVO behaviour of anomalous reservoir sands in the field. Density, compressional and shear wave velocity logs, combin...

Evaluation of Waste Landfill Using 2-D Resistivity Imaging. ( A Case Study Of Iguomo Dumpsite) Edo State, Nigeria

AbstractMunicipal solid waste disposal sites can be sources of groundwater contamination and the contamination problems are more likely to occur in humid areas, where the moisture available exceeds the ability of the waste pile absorb water. 2-D resistivity imaging has frequently been used in the subsurface pollution studies. The method maps the distribution of resistivity of subsurface materials. The 2-D resistivity image provides general information on subsurface stratification of buried wa...

Modeling the Supply of Pipe Borne Water in Ilorin

ABSTRACTWater as an essential commodity plays a major role in national development, the availability of water through pipe borne to individual, communities, and the country at large will help in achieving the New Millennium Development Goal (MDG7), hence the constant study, analysis and forecast for  supply of water using past water supplied. The supply of pipe borne water from 2009 to 2015 was examined with the aim of developing a working model to forecast future supply of pipe borne water....

STATISTICAL ANALYSIS ON STILL-BIRTH AND LIVE BIRTH-RATE

ABSTRACT Stillbirth remains a public health problem with an estimate of 2.6 million stillbirths in 2015 of which 98% occurred in low- and middle-income countries and over three-quarters of these occurring in Sub-Saharan Africa (SSA) and south Asia. Further, only ten countries carry the burden of over 65% of total stillbirths in the world including Nigeria in the second position. The objective of this analysis is to estimate stillbirth rates and identify the determinants of st...

QUALITATIVE PETROPHYSICAL ANALYSIS OF WELL LOG DATA FROM WABI FIELD_By Popoola, Oladotun, 2015

                                                                          ABSTRACT Qualitative Petrophysical Analysis of Wabi 10 well, located in the Wabi Oil Field in the Niger Delta was carried out. The wire-line log comprising of gamma rays, resistivity and neutron – density logs provided by Total Exploration and Production Nigeria Limited (TEPNL) was used. The properties considered include Lithofacies, the Permeable and Impermeable beds with thei...

ANALYSIS OF CURRENCY DEVALUATION IN NIGERIA

ABSTRACT The primary aim of this project is to estimate the long run relationship between economic growth and currency devaluation. This project investigated the impact of currency devaluation on economic growth of Nigeria. This was achieved through a review of literature. In order to generate the necessary data for this research, the Central Bank of Nigeria Statistical Bulletin of and publications of the National Bureau of Statistics were used for the period of 2008 to 2017. The...


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