ABSTRACT Discrete Event System Specification (DEVS) formalism is a Modeling and Simulation (M&S) framework that provides a means of specifying systems. It separates a model from its simulator. The former describes the structure and the behavior of a system, while the later generates the trajectories of these descriptions. P-DEVS (Parallel DEVS) is the version of DEVS that allows one to express at the modelling level, the parallelism present in a system. Though the algorithm is well defined, ...
ABSTRACT Adebayo Gbenga Waliyi: Study and implementation of Wireless Sensor Network to Manage Energy in a Smart Home. (Under the direction of Ousmane Thiare) Many studies have shown that smart homes can use energy more efficiently than traditional buildings. Thus, several researchers have advocated building a smart home in order to reduce energy consumption. In the literature, Wireless Sensor Network is adopted as the dominant technology for every proposed smart home . In this thesis I expl...
ABSTRACT This dissertation presents the combined results of analytical, computational and experimental study of the effects of surface texture and nanoscale surface oxides on the optical and mechanical properties of silicon single crystals and MEMS thin films. The first part of this work is focused on the analytical modeling of the reflectance of flat and textured silicon substrates. The model was used to study the reflection behavior of textured silicon surfaces under non-normal incidence. ...
Wireless Sensor Network (WSN), is composed of several spatially distributed nodes, and connected to one or more sensors, which monitor a large physical environment. The nodes (wireless devices) are typically small in size and capable of performing sensing, on-board processing, communication and storage. WSNs [1] offer economically viable solutions for a variety of applications such as current implementations to monitor factory instrumentation, pollution levels, freeway traffic, and the struct...
ABSTRACT This study investigated the impact of ICT three initiatives as perceived by Wiawso College of Education tutors at an independent school in Sefwi Wiawso. A qualitative data was gathered for this Case Study by administering questionnaire to 43 tutors of the college and two administrative staff. Data were analysed using descriptive statistics. First and foremost, evidence was found of an overall increase in the use of ICT since the three initiatives were implemented. Secondly, the provi...
ABSTRACT A Krasnoselskii-type algorithm for approximating a common element of the set of solutions of a variational inequality problem for a monotone, k-Lipschitz map and solutions of a convex feasibility problem involving a countable family of relatively nonexpansive maps is studied in a uniformly smooth and 2-uniformly convex real Banach space. A strong convergence theorem is proved. Some applications of the theorem are presented.
ABSTRACT Deep Neural Networks are now deployed for many modern artificial Intelligence applications including computer vision, speech recognition, self-driving cars, cancer detection, gaming and robotics. Inspired by the mammalian visual cortex, Convolutional Neural Networks (CNNs) have been shown to achieve impressive results on a number of computer vision challenges, but often with large amounts of processing power and no timing restrictions. Software simulations of CNNs are an efficient ...
The contribution of this project falls within the general area of nonlinear functional analysis and applications. We focus on an important topic within this area: Inequalities in Banach spaces and applications. As is well known, among all infinite dimensional Banach spaces, Hilbert spaces generally have simple geometric structures. This makes problems posed in them easier to handle, this is as a result of the existence of inner product, the proximity map, and the two characteristic identitie...
ABSTRACT Acoustic effects such as absorption/amplification of acoustic phonons, Acoustoelectric Effect (AE) and Acoustomagnetoelectric Effect (AME) were studied in Carbon Allotropes. In this thesis, the Carbon Allotropes considered are Graphene Nanoribbon (GNR), 2-dimensional Graphene sheet, and Carbon Nanotubes (CNT). The Boltzmann transport equation (BTE) and the phonon kinetic equation (PKE) were used. All results were analysed numerically and graphically presented. Using BTE for Armchair ...
ABSTRACT The use of High Intensity Focused Ultrasound (HIFU) in the medical treatment of cancer has attracted scientists and engineers with interest in achieving the most financially affordable but yet curative methods of curing different types of cancers. This present work considers a 2D modeling of the prostate gland without the environmental (neighbouring) tissues such as bladder, rectum, urethra and seminal vesicle. This model uses the nonlinear Westervelt equation since the propagation i...
ABSTRACT Combination-control of two or more systems which may have important application in Josephson junction ratchet array, and other physical systems has not been explored. Most of the theoretical framework is on combination synchronization, and the need for combination tracking control. In this paper tracking control of 2-D Duffing oscillator, 3-D Lorenz-Stenflo, 4-D Lorenz-Stenflo systems, as well as combination-tracking control of two, three, four and five systems evolving from differe...
ABSTRACT Active polar gels are a type of viscoelastic soft material formed by polar filaments which are constantly driven out of equilibrium by the consumption of chemical fuel such as ATP. Following the approach of Voituriez et al, a generic hydrodynamic theory relying on symmetry arguments only was used to study the effects of quasi one-dimensional confinement on active polar gels. The phenomenological theory based on liquid crystal hydrodynamics is motivated by the dynamics of actin filame...
ABSTRACT Undoubtedly, human trafficking, endangers human rights and the security of the individual human being as well as global security at large. The main objective of the study was to assess the stakeholder institutions in controlling human trafficking in the Eastern Region of Ghana. Multistage sampling approach which includes cluster, stratified and purposive sampling methods were used to select a total sample size of 100 respondents for the study. Since the problem under investigation is...
ABSTRACT Wave velocities in sand stones are greatly influenced by porosity and clay contents.
ABSTRACT Background: Malaria co-infection with schistosomiasis is known to modulate the immune response and thereby to potentially alter the pathophysiological and immunological profile of the diseases.