Nanofluids are a class of heat transfer fluids created by suspending nanoparticles in base fluids. Due to their enhanced thermal conductivity, nanofluids are fast replacing conventional heat transfer fluids like water, ...
This thesis is based on application of frailty and copula models to under five
child mortality data set in South Africa. The main purpose of the study was to
apply sample splitting techniques in a survival analysis setting ...
Our discussion starts with the study of convergence and clustering of filters initiated in
pointfree setting by Hong, and then characterize compact and almost compact frames
in terms of these filters. We consider the ...
Using the ARFIMA (autoregressive and fractionally integrated moving aver age) model extended with sGARCH (standard generalised autoregressive con ditional heteroscedasticity) and ’gjrGARCH (Glosten-Jagannathan-Runkle gen ...
The world is under threat from the devastating effects of the continued
depletion of the Ozone layer. Increased global warming is causing
catastrophic ecological damage and imbalance due to accelerated
melting of glaciers, ...
Under-Five Mortality (U5M) remains a major health challenge in most sub Saharan African countries including SouthAfrica,despite the significant progress made in child survival and the government’s efforts and commitment to ...
Water is a precious natural resource and one of the most vital substance
for sustainability of life . The increase in water evaporation is a major prob lem where factors such as high temperature and minimum rainfall are ...
A finite group G is called (l, m, n)-generated, if it is a quotient group of the triangle group
T(l, m, n) = x, y, z|xl = ym = zn = xyz = 1-. In [43], Moori posed the question of finding all
the (p, q, r) triples, where ...
The task of automatic speaker recognition, wherein a system verifies or identifies
speakers from a recording of their voices, has been researched for several decades.
However, research in this area has been carried out ...
We study balanced filters and balanced z-filters considered by Carlson in [20] and [21] in
topological spaces. We consider closed filters which are open-generated and open filters
which are closed-generated. We show that ...
A Cs´ asz´ ar frame is a point free version of syntopogenous space, itself a concept that is attributed to ´ Akos Cs´ asz´ ar [14]. In his two papers, Chung ([12] and [13]) characterised few types of Cs´ asz´ ar frames and ...
Modelling with differential equations is of paramount importance as it provides pertinent insight into the dynamics of many engineering and technological devices and/or processes. Many such models, however, involve ...
In Software Defined Cognitive Radio Network (SDCRN), network security is a
significant issue. This issue arises when Software Defined Network (SDN) architecture
integrates with the Cognitive Radio Network (CRN) technology. ...
In spatial statistics, several methods have been developed to measure the extent
of local and global spatial dependence (clustering) in measured data across
areas in a region of research interest. These methods are now ...
The ever increasing number of students who drop out of university remains a challenge
for Higher Education administrators. In response to this, different studies have been
conducted globally in order to identify student ...
Background: Death and economic losses due to road traffic accidents (RTA) are huge global public health and developmental problems and need urgent attention. Each year nearly 1.24 million people die and millions suffer ...
Several studies indicated a growing trend in terms of frequency and severity
of extreme events. Extreme rainfall could cause disasters that lead to loss of
property and life. The aim of the study was to model the monthly ...
In this study,we consider two problems.The first one is the problem of computing hedging
portfolios for options that may have discontinuous payoff functions.For this problem we use the Malliavin property called the ...
Temperature extremes have a crucial impact on agricultural, economic, health
and energy sectors due to the occurrence of climate extreme events such as
heat waves and cold waves. Limpopo province is among the hottest ...
Peritoneal Dialysis (PD) is a process of replacing kidney function which cleans
waste from the blood and remove extra fluid from the body. In most cases, the
process of PD is slowed down by a peritoneal membrane infection ...