Now showing items 11-20 of 38
Estimating pedestrian accident risk using conflict techniques and digital imaging.
Accidents are a complex process involving many contributory factors. The understanding of the accident process has often been sought by the use of accident data. Although accident data provide a direct relationship to ...
Gaseous and particulate emissions.
The need to limit sulphur dioxide, nitrous oxides and particulate matter emissions from fossil fuel combustion processes is now a major factor in the design, construction and operation of plants. Over the past 5 to 10 ...
Application of digital imaging in measuring cross track drift of vessels entering a port.
Durban is the busiest container port in Africa and there are plans for significant expansion during the next few years. This expansion includes the widening of the port entrance channel to accommodate larger "post-panamax" ...
A numerical study of bacteria transport through porous media using the green element method.
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 ...
Numerical and experimental study of transient heat transfer through concrete.
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 ...
An assessment of water services in a peri-urban area of Umtata.
No abstract available.
Influence of the degree of waste pre-treatment on carbon emissions' production and nature.
This study was carried out to gain knowledge of the degradation processes in an anaerobic environment of pre-treated waste for different degrees of pre-treatment and the evolution of waste pre-treatment by forced aeration. ...
Rural road maintenance through labour-based lengthmen system in Zambia.
Rural road maintenance has received little or no attention in Zambia for a long time, resulting in an adverse impact on the economy. Meanwhile Road Authorities have continued to use traditional capital-intensive periodic ...
Costing calculation of operation and maintenance in community water supplies.
Studies of community water have been on the increase since the International Drinking Water Supply and Sanitation Decade, 1981 - 1990. However there is some key areas of community water supply that still require research ...
The breaching of temporary open/closed estuaries.
Intermittent breaching of sand barriers at temporary open estuaries plays a key role in the functioning of these systems. Breaching events lead to large and rapid changes in the physico-chemical environment which in turn ...