Biodegradability of materials and material building blocks, such as polymers, monomers, polymer crosslinkers is a long lasting question related to environmental issues. The improvement of polymeric materials for biological degradation is a field of active research with many challenges. A newly developed computational model can sufficiently describe the oxidative degradation of polymer building...
The Head of Department – Prof. M. O. Olatinwo
The Dean of Science – Prof. O. A. Adesina
The Executive Director, AFRIGIST, Professor Lazarus M. Ojigi
The Executive Director, ARCSSTE-E, Professor A. Babatunde Rabiu
We observed that Impulsive Quantum Stochastic Differential Inclusion (IQSDI) may not have solution even if it is Lipschitz continuous because of the limiting condition imposed on the impulsive term $t_k .$ We impose an extra regularity condition on $t_k $ and establish solution using minimal selection theorem. QSDI in this work is in the framework of Hudson and Parthasarathy developed quantum...
This paper explores predictive modelling, a mathematical technique used to analyse data patterns for forecasting future events or outcomes. Predictive modelling is a crucial component of predictive analytics, a data analytics discipline that employs machine learning and data mining methods to forecast activity, behaviour, and trends using both current and historical data. Initially, the paper...
A continuous implicit trigonometrically-fitted four-step method (CITFFM) for solving oscillatory second order ordinary differential equations (ODEs) is developed in this paper. The CITFSM is generated by collocation and interpolation techniques through the use of a combination of power series and trigonometric function as approximate basis equation. For implementation purpose, an implicit...
High blood pressure, also known as hypertension, is a common medical condition where the force of blood against the walls of the arteries is consistently too high. During the last 100 years, pathological methods have been used to explain different ways that recapitulate the unique features of muscles and how they relate to the arterial blood vessel. The mechanical characterization of pressure...
Chemical species undergoing spontaneous reactions and temperature oxidation of materials are useful in explosion safety, propulsion detonation and chemical synthesis. Thus, this study considers the dynamics of temperature oxidation of a two-step exothermic combustion and thermal ignition in a concentric isothermal cylinder with diverse boundary constraints. With constant thermal reactant...
Analog circuit design for nonlinear programming has been widely studied in the literature (Dennis, 1959;
Kennedy and Chua, 1988; Tank and Hopfield, 1986; Wilson, 1986). However, recent advances in edge computing
and in model predictive control have led to a resurgence of interest in analog programming circuits (Vichik and
Borrelli, 2014; Vichik et al., 2016; Bena et al., 2023). We develop...
HIV superinfection, the acquisition of a second distinct viral strain in an individual already infected, presents challenges to HIV management and vaccine development. Understanding the dynamics and implications of superinfection is crucial for advancing HIV research and developing more effective prevention and treatment strategies. While HIV superinfection is recognized, the mechanisms,...
Tubercuosis(TB)is a global health concern,affecting both humans and animals.This paper
provides a dynamic model to anayze the complicated dynamics of tuberculosis transmission,
taking into account human animal interactions and a saturated incidence rate with seasonal
changes.Furthermore,the model accounts for the efficiency of measures targeted at reducing the
spread of...
Combined effects of steady electro-osmotic flow (EOF) and magneto-hydrodynamics (MHD) with variable viscosity and thermal conductivity of the reactive fluid flow is assumed to vary exponentially with temperature was investigated. The dimensionless variables was used to dimensionalized the governing equations of the flow using suitable physical parameter. However, steady variable viscosity and...
In this paper, the derivation of a second derivative two-step hybrid block Method is carried out via Collocation techniques and the scheme is coupled with sixth-order compact difference schemes for the numerical solution of the nonlinear FitzHugh-Nagumo Partial Differential Equations (PDE) which is of physical relevance. The sixth-order standard compact difference schemes are used to...
Brain tumor is an abnormal growth or mass of cells in or around the brain. It is also called a central nervous system tumor. Brain tumors can be malignant (cancerous) or benign (not cancerous). In this work we proposed a system of nonlinear differential equations that model brain tumor under treatment by chemotherapy, which considers interactions among the glial cells X(t), the cancer cells...
Malware detection is a crucial component of cybersecurity, with various techniques utilized to combat the constantly evolving landscape of malicious software. This work aims to conduct a systematic literature review (SLR) of different machine-learning models used by various authors to evaluate their effectiveness in combating malware. The objective of this work is to synthesizes the knowledge...
Authors:Fuwape I. A, Rabiu A. B., Ogunjo S. T., Oludairo A. G.
ABSTRACT
Humans mobility patterns are a complex systems driven by several dynamics.The amount of information available in human mobility to different places can give insight to urban and economic development. In this study, information theory was used to analyze human mobility to six different places (retail and recreation...
submitted for: international conference and advanced workshop on modelling and simulation of complex systems
This study looks into the challenges of the critical situation faced by the World Food Program (WFP) on inventory management during humanitarian assistance under the stronghold of the Boko Haram terrorists caliphate, in Gwoza, Borno State, Nigeria. However, the EOQ model under such a man-made disaster and a terrorists region with an unavoidable task that required additional cost of military...
Key words: Compressed Natural Gas (CNG),Spark Ignition Direct Injection (SIDI) Engine,Fuel Injection Timing,Engine Performance, Emission Characteristics, Gasoline
Abstract: This study numerically investigated the effects of early and late injection timings on the combustion of compressed natural gas (CNG) in SIDI engines; that is spark ignition engines where the gas is directly injected at...
Schistosomiasis is largely a water-snail related disease that mostly affects school aged children in developing countries. Malaria is an ancient disease that is still thriving and threatening to be a major source of death and disability due to climate change and socio-economic conditions.
This paper presents a mathematical model for Schistosomiasis-Malaria dual infection in order to...
This study presents the mathematical modelling and simulation of physically blown polyurethane foam in a dedicated device considered in Tesser et al. (2003). For a given initial concentration of the physical blowing agent the final foam density was obtained via simulation. The temperature profile of the polymerization and curing process reported in the experiment of Tesser et al. (2003) was...
ABSTRACT
Diphtheria and Pertussis are vaccine-preventable respiratory diseases which pose as public health challenge particularly in infants and children who missed out of routine vaccination programs during Covid-19 outbreak.
This study hinges on the fact that pathogens can coexist in a host, therefore we propose a non-optimal and optimal control intervention strategy to check the...
Effective waste management aims at minimizing garbage's detrimental effects on the environment, public health, and aesthetics, which also attempts to recover valuable resources and support sustainable development.
The Next Generation matrix was employed to calculate the reproduction number, the model equations were solved using the Differential Transformation Method (D.T.M.) and the...
This paper presents a detailed exploration into the dynamics of an innovative 5D variable-boostable (V-B) system, incorporating series-based memristors. The investigation traces the transition from integer 3D-chaotic flows to 5D-integer-order hyperchaotic flows, shedding light on the system’s evolution and enhanced capabilities. A thorough analysis is conducted, focusing on the system’s...
This study explores the effects of rotation in a fluid flow over a magnetized surface, which has practical applications in the design and operation of induction motors, electric generators, and induction regulators. The mathematical model provides a framework for analysing and predicting the complex interaction between a Erying-Powel fluid, hybrid nanoparticles, rotation, non-linear heat and...
Author #1
Abimbola A. Oyewumi
Ladoke Akintola University of Technology Ogbomoso, Oyo state
e-mail:aaoyewumi53@lautech.edu.ng
Author #2
Rasaq A. Oderinu
Ladoke Akintola University of Technology Ogbomoso, Oyo state
e-mail:raoderinu@lautech.edu.ng
ICAWMSCS 2024
Keywords: Aboodh transform, Reduced differential polynomial, Burger-Huxley equation and
Caputo-Fabrizio fractional...
Abstract
Measles, an acute viral infectious disease caused by the measles morbillivirus, belongs to the paramyxovirus family. It spreads through direct contact and airborne transmission, primarily infecting the respiratory tract through coughs, sneezes, and nasal secretions. The prevalence of measles is a concern in African and developing countries where overpopulation and limited birth...
Communication using Radio waves transmission from a source, travel through a space medium to carry programmed instructions to another destination. Ray tracing is a procedure of finding the paths of energy flow of the waves. These paths depend on Launch parameters, nature of the medium as well as environment of the wave. Simulation of plane polarized Electromagnetic rays in bi-refringent...
Patient healthcare service delivery system is pivotal to sustenance of lives of human being. Existing works modelled patient flow processes with emphasis on medical record sections and consultation rooms of hospital, thereby limiting the capability of the existing models in studying and improving the issues of outpatients’ long waiting time and queue emanating from medical record section...
The Brusselator is a theoretical model for a type of autocatalytic reaction to analyze the behaviour of the chemical systems with non-linear oscillator. Fractional-order Brusselator system of equations (Reaction-Diffusion system) were solved using Sawi Homotopy Analysis Method (SHAM) which is a combination of Sawi transform and Homotopy analysis method. Obtained results were compared with the...
SQL injection attacks pose a significant threat to database security, potentially leading to data breaches and unauthorized access. This paper presents a novel approach to SQL injection detection using a combination of deep learning techniques: autoencoders, tokenization, and Temporal Convolutional Networks (TCNs). The proposed method aims to accurately differentiate between legitimate SQL...
ABSTRACT
This paper is a contribution to the application of quantum finance theory. Some of the common momentum indicators include: the rate of change (or the ROC), the relative strength index (or the RSI), the moving average convergence divergence (or the MACD) and the stochastic indicator. It is noted that many of the known methods for computing the indicators including those not...
Abstract: The drug-crime nexus represents a persistent challenge with profound societal implications. This publication explores an innovative approach by applying optimal control strategies and cost-effectiveness analysis to model and address this complex issue. This research presented a six-dimensional compartments model for the co-dynamics of drug and its related crime. This model is...
ABSTRACT
Significant data collection has revolutionized our daily lives and brought about changes in various industries such as marketing, telecommunications, finance, and transportation systems. With the help of technological advancements, data collection plays a momentous role in transportation systems, particularly with regard to traffic flow signals, traffic control, and vehicular...
Higher educational institutions face challenges in managing resources effectively, impacting their competitiveness and sustainability. Higher educational institutions are critical for societal development, relying on effective management of resources for success. However, many Nigerian tertiary institutions still use traditional administrative systems, leading to inefficiencies and resource...
It is estimated that one-third of the world's population are infected with latent Tuberculosis (TB). This research presents an exhaustive deterministic model for the transmission and control dynamics of TB. This model incorporates significant parameters such as vaccination, treatment, disease relapse after recovery, vaccination wane, progression rate from latent to active TB, among others. The...
Aroloye, S.J1, Fenuga, O.J2, Abiala, I. O3
1,2,3 Department of Mathematics, Faculty of Science, University of Lagos, Nigeria
Corresponding author Email: saroloye@unilag.edu.ng Phone number: 08073547811
Abstract: Heat and mass transfer of magnetohydrodynamic (MHD) Casson fliud in the presence of nanofluid, viscous dissipation, thermal radiation and magnetics effect is investigated. The...
Abstract:
The transition to solar energy is pivotal in addressing global energy challenges, offering a clean and renewable alternative to fossil fuels. However, to maximize the potential of solar power, there is critical need to enhance the efficiency and reliability of solar panels. This study focuses on modeling the influence of temperature-dependent specific heat capacity in Tri-hybrid...
The abstract gives the first impression of the manuscript. How much information or complexity is contained in the abstract? In this study, the amount of information in ArXiv’s physics abstracts was characterized using Shannon entropy. The variation of abstract entropy with respect to the number of authors, abstract length, and year was considered. The entropy of the abstract was found to have...
The relevance of flow dynamics and heat transfer in complex fluid-solid systems is essential in many manufacturing and engineering processes, such as chemical processing, thermal cooling systems, heat exchangers, etc. The current study, therefore, delves into the analysis of dusty tangent hyperbolic fluid flow mechanism and heat transfer characterized by the MHD two-phase flow phenomenon over...
This study aims to provide adequate primary information on physico-chemical parameters, water quality indices, probable source of ions responsible for groundwater chemistry and their spatial variability in Sokoto-Rima Catchment. A combination of hydro geochemistry, multivariate statistics, and geographical information system (GIS) approaches was employed to evaluate the groundwater quality and...
Abstract
This research explores the dynamics of cyberattacks in Software-Defined Networking (SDN) environments using optimal control theory. It aims to study the dynamics of cyberattack propagation in a complex system such as a telecoms/computer network built on the principle of SDN. The focus of the study is to formulate optimal defense strategies to ameliorate the impacts of the...
