Browsing School Mathematics, Statistics and Computer Science by Title
Now showing items 354-370 of 370
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Techniques and countermeasures of TCP/IP OS fingerprinting on Linux Systems
(2007)Port scanning is the first activity an attacker pursues when attempting to compromise a target system on a network. The aim is to gather information that will result in identifying one or more vulnerabilities in that system. ... -
The theory of option valuation.
(1992)Although options have been traded for many centuries, it has remained a relatively thinly traded financial instrument. Paradoxically, the theory of option pricing has been studied extensively. This is due to the fact ... -
Thermal evolution of radiation spheres undergoing dissipative gravitational collapse.
(2014)In this study we investigate the physics of a relativistic radiating star undergoing dissipative collapse in the form of a radial heat flux. Our treatment clearly demonstrates how the presence of shear affects the collapse ... -
Time series analyses of microbiological counts associated with treated water quality data from Umgeni Water.
(2017)Abstract available in PDF file. -
Time series modelling with application to South African inflation data
(2009)The research is based on financial time series modelling with special application -
Time-to-event analysis models including frailty effects in understanding infant and child mortality in Lesotho.
(2016)This thesis focuses on the determinants of infant and child mortality in Lesotho. It specifically examines how infant and child mortality is related to environmen- tal, demographic and socio-economic factors. A survival ... -
Transport on network structures.
(2013)This thesis is dedicated to the study of flows on a network. In the first part of the work, we describe notation and give the necessary results from graph theory and operator theory that will be used in the rest of ... -
Unsupervised caries detection in non-standardized bitewing dental X-Rays.
(2017)In recent years dental image processing has become a useful tool in aiding healthcare professionals diagnose patients by reducing some of the problems inherent with dental radiographs. Despite advances in the eld, ... -
Use of statistical modelling and analyses of malaria rapid diagnostic test outcome in Ethiopia.
(2013)The transmission of malaria is among the leading public health problems in Ethiopia. From the total area of Ethiopia, more than 75% is malarious. Identifying the infectiousness of malaria by socio-economic, demographic ... -
Using epidemiological mathematical models to understand the transmission dynamics of bovine tuberculosis in buffalo and cattle populations.
(2015)In South Africa, buffalo are the maintenance hosts of Mycobacterium bovis (M. bovis), a pathogen that causes bovine tuberculosis in wildlife and domesticated animals. To understand the transmission dynamics of M. bovis, ... -
Using mobile agents to solve the distributed buying problem.
(2002)This study deals with the Distributed Buying Problem, that is, the problem faced by geographically distributed businesses when it comes to optimising buyer time and global businesses resources. It adopts a software ... -
Using spectral methods on HIV infection with TAT and SSU72 activation.
(2016)HIV dynamics within the host are complex especially when a reservoir of latently infected CD4+ T cells are present. The failure of the immune system and antiviral therapy to suppress the virus has been suggested to be ... -
Vector graphics to improve BLAST graphic representations
(2007)BLAST reports can be complicated. Viewing them graphically helps to understand them better, especially when the reports are long. At present "Web BLAST" and the stand-alone "wwwBLAST" versions, distributed by the NCBI, ... -
Wadley's problem with overdispersion.
(2009)Wadley’s problem frequently emerges in dosage-mortality data and is one in which the number of surviving organisms is observed but the number initially treated is unknown. Data in this setting are also often overdispersed, ... -
Weak gravitational lensing in the cosmic microwave background : reconstructing the lensing convergence.
(2012)Many of the most significant constraints on the standard model of Cosmology describing the origins, contents and evolution of the Universe arise from the Cosmic Microwave Background (CMB). As we enter an era of precision ... -
Wind-wave interactions, density stratification and double diffusive convection in rotating flows.
(2015)Abstract available in PDF file. -
Zero-inflated regression models with application to water quality data from Umgeni Water.
(2017)Abstract available in PDF file.