Browsing Civil Engineering by Title
Now showing items 90-109 of 146
-
Management and production techniques in the manufacturing and service industries and how it relates to the construction industry.
(2011-01-21)This dissertation is concerned with the future of the construction industry in South Africa and the ability to improve. Continuous growth is predicted through to the year 2015 and beyond, it is considered that to meet ... -
A mathematical model development for simulating in-stream processes of non-point source pollutants.
(2018)In coming years, chronic water stress is inevitable owing to the unavailability of fresh water. This situation is occasioned by rapid urbanisation, climate change, rising food demand, and production. The increasing rate ... -
Maximising the photobiological production of hydrogen using leachate, while monitoring algal photosynthesis using pam fluorometry.
(2014)Hydrogen is universally known as the most efficient renewable energy source capable of meeting global energy demands. Chlamydomonas reinhardtii has the ability to produce biohydrogen during the metabolic engineering of ... -
Modelling flood inundation in the Mlazi river under uncertainty.
(2003)The research project described in this dissertation studies the modelling techniques employed for the Mlazi River in the context of flood analysis and flood forecasting in order to model flood inundation. These techniques ... -
Modelling hydrological responses to land use and climate change : The Mfolozi Catchment.
(2012)St. Lucia is South Africa’s largest and most important estuarine system. The Mfolozi and Mkuze catchments provide the main source of water to the system. Regional climate change may influence future water and sediment ... -
Modelling in ungauged catchments using PyTOPKAPI : a case study of Mhlanga catchment.
(2018)Hydrological modeling of rainfall-runoff processes is a powerful tool used in various water resources applications, including the simulation of water yield from ungauged catchments. Many rivers in developing countries are ... -
Modelling of the water balance and nutrient dynamics of Mhlanga Estuary.
(2011-01-19)Waste water discharge into a temporary open/closed estuary (TOCE) system introduces two main concerns namely (1) the effects on the water balance of the system (quantity) and (2) the effects on the nutrient dynamics (water ... -
Modelling sand bypass schemes on the KwaZulu-Natal coastline.
(2015)Coastal structures such as breakwaters cause a disruption of longshore sediment transport along coastlines. The result of this disruption creates sand accumulation up-drift and beach erosion down-drift of these structures. ... -
Modelling the influence of varying sediment sources on coastlines.
(2019)Coastal erosion is of concern to developed shorelines worldwide and has largely intensified due to anthropogenic influences. Sea-level rise, reductions in sediment supply and changes to wave behaviour due to changes in ... -
Monitoring the health of the rivers of the Durban Metropolitan Area using fresh water invertebrates. A pilot study.
(2002)This document is aimed at all parties involved with conservation, planning and management of rivers within the Greater Durban Metropolitan Area, South Africa. The intentions of this study were to provide information on ... -
A new approach to the polyaxial stress numerical analysis of underground openings.
(2012)The traditional design methodologies for tunnel and underground excavations are divided in to three categories: Empirical, Analytical, and Observational approaches, whereas in the last years the Numerical approach has ... -
Nitrate removal from treated landfill leachate using a mix of vegetable waste and immature compost as a carbon source (simulation) in batches.
(2014)The aim of this dissertation was to investigate how effective the process of removing nitrates from treated leachate, and if it is possible to apply to a landfill treatment plant. The leachate is high strength landfill ... -
Nitrate removal using compost and pine bark as a carbon source.
(2010-09-03)Emissions resulting from waste degradation processes have a high polluting potential and are responsible for negative impacts on the environment. Landfill leachate is hazardous for the human health and the environment ... -
Non-linear finite element analysis of the effects of fire protection on a top and seated angle bolted steel connection with double web angles.
(2017)This study was aimed at investigating the performance of steel structures, towards improving fire design, by examining the effects of fire protection on a steel connection exposed to elevated temperatures. A literature ... -
Numerical and experimental study of transient heat transfer through concrete.
(2001)The increase in temperature of developing concrete as a result of heat liberated by cementing reactions is the primary cause for thermally induced cracks in large concrete elements. It is very essential, in engineering ... -
Numerical evaluation of the dynamic response of structures using auxetic-type base isolation.
(2018)Base isolation is a widely-used method to minimise the harmful effects of earthquakes on buildings. Unlike a fixed base building, a building with a base isolation system essentially decouples the superstructure from the ... -
Numerical modelling of a geosynthetically reinforced sand mass undermined by a subgrade void.
(2016)The South African railway network is highly developed and the vast span of existing rail lines require maintenance and upkeep to ensure smooth running of locomotives. One of the problems faced by the rail industry is ... -
A numerical study of bacteria transport through porous media using the green element method.
(2000)The continued widespread contamination of the subsurface environment by microbial pathogens and chemical wastes has resulted in an increased interest in the factors that influence microbial transport through porous ... -
Odour management at landfills.
(2005)Landfill sites that are situated near residential zones pose significant management challenges. One of the key issues concerns odour emissions; they can be a major cause of public opposition to the existence of landfills. ...