Browsing by Title
Now showing items 8963-8982 of 19409
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Hydrogeological and three-dimensional numerical groundwater flow modelling of the Lake Sibayi catchment, Northern KwaZulu-Natal, South Africa.
(2016)Lake Sibayi, a topographically closed fresh water lake in northern KwaZulu-Natal, South Africa, and the coastal aquifers surrounding the lake, are important water resources for the local community and the surrounding ... -
Hydrogeological conceptual modeling of the Kosi Bay Lakes system, north eastern South Africa.
(2015)This M.Sc. Thesis focuses on the hydrogeological study of the Kosi Bay Lakes system, located in the north-eastern KwaZulu-Natal (KZN) Province of South Africa. The research catchment covers an area of about 659 km². It is ... -
The hydrogeology of Botswana.
(1974)Botswana covers an area of 570 000 km and has a population of about 600 000. It is estimated that three-quarters of the human and livestock populations are dependent on ground water, with an estimated 26 x 10 m of water ... -
The hydrological basis for the protection of water resources to meet environmental and societal requirements.
(2006)In common with other natural systems, aquatic ecosystems provide a wealth of economically valuable services and long-term benefits to society. However, growing human populations, coupled with increased aspirations for ... -
Hydrological connectivity in selected pristine catchments in the Kruger National Park.
(2014)The understanding of interactions between hydrological processes is essential, especially in water limited ecosystems in semi-arid environments. It is through this understanding that informed planning and management decisions ... -
The hydrological effects of fire in South African catchments.
(1994)Stream-flow and storm-flow in four small catchments were analysed by the paired catchment method for a response to fire. Two of the catchments were vegetated with over-mature fynbos (the indigenous scrub vegetation of ... -
Hydrological flow modelling using Geographic Information Systems (GIS) : the case study of Phuthiatsane Catchment, Lesotho.
(2010)Despite of Lesotho having abundant water, it is still faced with freshwater challenges as the current water supply cannot meet the needs of the population. In addition, water has become the main driver of development in ... -
Hydrological modelling applications for water resources management in the Mkomazi Catchment.
(2001)Predictions that water shortages will constrain economic growth in South Africa by 2025 have led to increased concerns among water resource managers that there is a need for comprehensive water management strategies. To ... -
Hydronamic study of gas-liquid co-current bubble column reactors at low superficial gas velocities.
(2005)Sasol's Research and Development Division has identified several proprietary gas-liquid reactions where very low superficial gas velocities « 0.8 cmls) are required to obtain desired conversions in a bubble column reactor. ... -
The hydrosalinity module of ACRU agrohydrological modelling system (ACRUsalinity) : module development and evaluation.
(2003)Water is characterised by both its quantity (availability) and its quality. Salinity, which is one of the major water quality parameters limiting use of a wide range of land and water resources, refers to the total dissolved ... -
Hydrothermal liquefaction of marine macroalgae.
(2021)The biofuel industry has experienced substantial growth during the past decade due to the extreme demands placed on the fossil fuel industry and the limited availability of fossil fuels. Biofuels are seen as a renewable ... -
Hyperglycaemic-induced regulation of SIRT3 and downstream antioxidant profile.
(2015)Hyperglycaemia increases reactive oxygen species (ROS) production and mitochondrial dysfunction which are involved in metabolic disorders. Sirtuin 3 (SIRT3) is a primary mitochondrial deacetylase that regulates mitochondrial ... -
Hyperspheres of static charged fluids in standard and modified gravity.
(2019)Abstract available in PDF. -
Hypertension in South Africa between 2008 and 2017: an analysis of National Income Dynamics study data.
(2020)The world is faced with unprecedented increases in non-communicable and lifestyle-related diseases. This growth is of grave concern as these diseases have become the leading cause of global mortality. Hypertension is one ... -
Hypoglycaemic and renal effects of a bioactive plant extract in streptozotocin induced diabetic rats.
(2008)Background: Evidence from our laboratories indicates that triterpene constituents of Syzygium cordatum (Hochst.) [Myrtaceae] crude leaf extracts can be used to treat diabetes mellitus. For the plant derived triterpenes to ... -
Hypoglycaemic effects of some medicinal plant extracts in streptozotocin-induced diabetic rats.
(2007)Abstract available in PDF file. -
"I am making it without you, dad" : fatherless female students.
(2014)Historically, the awareness of the influence of paternal absence on females was largely overlooked by society. In contrast, maternal presence was acknowledged as the most important parental influence for a child’s growth ... -
“I owe my recovery to the group”: how addicts learn to recover: a case study of an addiction aftercare group.
(2019)This study explores how addicts learned to recover in an addiction aftercare group by identifying the pedagogic and group mechanisms of recovery, and revealing the knowledge and competencies that assisted participants. ... -
I paint therefore I am? : an exploration of contemporary Bushmen art in South Africa and its development potential.
(2009)In this research the contemporary art of the !Xun community in Platfontein, Kimberley is used as a case study to ascertain whether contemporary Bushman art, contrary to the mid-nineteenth century perception that it was ... -
I-lobola in contemporary South Africa: perspectives and experiences of young people.
(2020)Marriage continues to be an important aspect of life for people around the world, it is a respected way of family formation and a way for two people to unite including their families. In South Africa, it is often expected ...