Natural & Applied Sciences

Natural & Applied Sciences Research Papers/Topics

Distributed Database System For Road Safety Information Management

ABSTRACT  Implementing Distributed Database Management System is often difficult due to the disruption of highly coordinated, interdependent processes (e.g.) information exchange, communications, relationships) of providing care in Road Safety. Thus, this system creates and maintains all offender data electronically. The system captures accident victim data, vehicle registration, driving license, and offenders, at its source at the time of entry using a graphical user interface having ...

Quadratic Forms With Applications

The scope of Quadratic Form Theory is historically wide although it usually appears almost as an afterthought when needed to solve a variety of problems such as the classification of Hessian matrices in finite dimensional Calculus [1], [2], [3], the finding of invariants that fully describe the equivalence class of a given form in Algebraic Geometry and Number Theory [4], the use of Rayleigh-Ristz methods for finding eigenvalues of real symmetric matrices in Linear Algebra [5], [6], the secon...

Mapping Urban Place And Space: Fear Of Crime And The Re-Configuration Of Occupational Geographies In Tamale, Ghana

ABSTRACT Throughout history, studies have amply revealed that where people choose to settle within the urban space is not new. This has been explained to be an important part of the urbanisation process. Effect of fear of crime on the urban environment especially that which involves the re-location of activities and the restructuring of the built environment as an impact factor response strategy is less acknowledged in urban security scholarship especially in developing countries. Rather, con...

Intelligent Tutoring System For Learning Object Oriented Programming Language

ABSTRACT Taking Nigeria as a case study, most educational institutions, be it at the primary, secondary or tertiary level are faced with the challenge of over population of student’s in a single classroom. Also, the teacher who teaches an over populated class finds it quite difficult to have a one on one interaction or communication with each student in order to learning challenges. As a result of that, most students find it difficult to understand in the classroom. This research is concer...

Iterative Algorithms For Single-Valued And Multi-Valued Nonexpansive-Type Mappings In Real Lebesgue Spaces.

ABSTRACT Algorithms for single-valued and multi-valued nonexpansive-type mappings have continued to attract a lot of attentions because of their remarkable utility and wide applicability in modern mathematics and other reasearch areas,(most notably medical image reconstruction, game theory and market economy). The first part of this thesis presents contributions to some crucial new concepts and techniques for a systematic discussion of questions on algorithms for singlevalued and multi-valued...

Lasalle Invariance Principle For Ordinary Differential Equations And Applications

The most popular method for studying stability of nonlinear systems is introduced by a Russian Mathematician named Alexander Mikhailovich Lyapunov. His work ”The General Problem of Motion Stability ” published in 1892 includes two methods: Linearization Method, and Direct Method. His work was then introduced by other scientists like Poincare and LaSalle . In chapter one of this work, we focussed on the basic concepts of the ordinary differential equations. Also, we emphasized on relevant ...

The Design Of An On-Chip Silicon Photonic Diode

Abstract This work presents numerical calculation of electromagnetic waves in unidirectional on-chip silicon optical diodes. An original optical diode, designed by Wang et. al. [Opt. Express. 19, 26948-26955 (2011)], is based on breaking of spatial inversion symmetry and the directional band gap difference of two 2D photonic crystals comprising a hetero-junction structure. The dimensions of our structure are however different from those of Wang et. al. The electromagnetic waves in the diode ...

A Hybrid Algorithm For Approximating A Common Element Of Solutions Of A Variational Inequality Problem And A Convex Feasibility Problem

ABSTRACT In this thesis, a hybrid extragradient-like iteration algorithm for approximating a common element of the set of solutions of a variational inequality problem for a monotone, k-Lipschitz map and common fixed points of a countable family of relatively nonexpansive maps in a uniformly smooth and 2-uniformly convex real Banach space is introduced. A strong convergence theorem for the sequence generated by this algorithm is proved. The theorem obtained is a significant improvement of the...

Effects Of Larval Diet On The Fitness And Insecticide Resistance Profile Of Anopheles Gambiae S.L. (Diptera: Culicidae) From Opeibea Area In The Greater Accra Region, Ghana.

Malaria is a life-threatening disease and is hyper-endemic in Ghana. The Anopheles gambiae complex is established to contain the main vectors that transmit malaria parasite, Plasmodium falciparum in Sub-Saharan Africa and it has been implicated as the main vector of malaria in Ghana. Vector control remains the most effective measure to prevent malaria transmission. This can largely be achieved by the use of insecticides. However, the effectiveness of insecticide-based vector control is t...

On Big Data Management In Internet Of Things

ABSTRACT The Internet of Things (IoT) has generated a large amount of research interest across a wide variety of technical areas. These include the physical devices themselves, communications among them, and relationships between them. One of the effects of ubiquitous sensors networked together into large ecosystems has been an enormous flow of data supporting a wide variety of applications. In this work, we propose a new “IntelliFog-Cloud” approach to IoT Big Data Management by leveragi...

Implementation Of New Fault Tolerance Solution In Wireless Sensor Networks In A Multi-Channel Context

ABSTRACT Wireless sensor network is application specific, which is deployed in an interested area like about hundred or thousands of sensor nodes. All the sensor nodes communicate via a wireless medium and works cooperatively to sense the environment in order to achieve the required task. Such sensor nodes which is application specific needs a good fault tolerance scheme to keep the system working. Since this sensor nodes are battery operated, have a small memory, deployed in harsh environme...

Simulation Of Carbon Nanotube Growth

ABSTRACT The basic understanding of the underlying techniques of growing Carbon Nanotubes (CNTs) with a specific chirality is still obscure and needs to be understood so as to properly harness its potentials. Using both Classical Molecular Dynamics (MD) simulation with empirical force fields and a geometry optimization based on ab initio forces, we show that the dynamics involved in the growth of CNT on iron nanoparicles is non linear but complex. For a good geometry, the growth depends on t...

Studies On Genetic Mutations In Plasmodium Falciparum Strains Associated With 4- Aminoquinolines (Chloroquine) And Pyrimethamine-sulphadoxine (Fansidar) Resistance In Ghanaian Malaria Patient

The malaria drug policy for Ghana is chloroquine, Fansidar and quinine as the first line, second line and third line drugs respectively. However, the burden o f malaria has been complicated by the emergence of resistance especially to chloroquine, which is a cheap and effective drug. It has therefore become imperative that the levels o f resistance o f Plasmodium falciparum to anti-malarial drugs (chloroquine and Fansidar) in Ghana be established and the information used to develop an a...

Optical Properties Of Metal Clusters From First Principles Calculations

ABSTRACT Ground State structures of neutral Copper clusters CuN=3−6 were generated and optimised within the framework of the Density Functional Theory (DFT) using Generalised Gradient Approximation (GGA) and ultrasoft pseudopotential. The shapes and binding energies of the clusters obtained showed good agreement with other theoretical works, except for the trimer cluster which has the shape of an equilateral triangle rather than the isosceles triangle as reported in previous works. The opti...

A Smart Media-Based Recommendation System

Abstract Smart media devices such as: smartphones and tablets are getting more powerful, smarter, cheaper and hence more popular. Recommendation systems become very common in e-business and e-Commerce, for example: Amazon, Google, eBay, Facebook, etc. all are using recommendation systems to promote their business. Recommendation systems are rarely used in learning; however it can be very useful.


5386 - 5400 Of 8851 Results