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Now showing items 21-30 of 48
The development of a simulative hybrid model for optimising the production of a high-carbon ferromanganese furnace.
(Stellenbosch : University of Stellenbosch, 2009-12)
ENGLISH ABSTRACT: A project was initially commenced for optimising the production output at a specific
high-carbon ferromanganese furnace. Since operational difficulties were experienced
in this furnace and with a lack ...
Diagnostic monitoring of dynamic systems using artificial immune systems
(Stellenbosch : University of Stellenbosch, 2006-12)
The natural immune system is an exceptional pattern recognition system based on
memory and learning that is capable of detecting both known and unknown
pathogens. Artificial immune systems (AIS) employ some of the ...
The control of calcium and magnesium in a base metal sulphate leach solution
(Stellenbosch : University of Stellenbosch, 2003-04)
ENGLISH ABSTRACT: This thesis investigates the control of calcium and magnesium in a base metal
sulphate leach solution containing nickel and cobalt. The presence of calcium and
magnesium in the hydrometallurgical ...
Empirical state space modelling with application in online diagnosis of multivariate non-linear dynamic systems
(Stellenbosch : Stellenbosch University, 1999-12)
ENGLISH ABSTRACT: System identification has been sufficiently formalized for linear systems, but not for empirical
identification of non-linear, multivariate dynamic systems. Therefore this dissertation
formalizes and ...
Change-point detection in dynamical systems using auto-associative neural networks
(Stellenbosch : Stellenbosch University, 2012-03)
ENGLISH ABSTRACT: In this research work, auto-associative neural networks have been used for changepoint
detection. This is a nonlinear technique that employs the use of artificial neural
networks as inspired among other ...
The development of a one-dimensional quasi-steady state model for the desulphurisation process at Saldanha Steel
(Stellenbosch : University of Stellenbosch, 2003-04)
ENGLISH ABSTRACT: The pneumatic injection of reagent powder into molten iron has become
the preferred way to carry out iron and steel desulphurisation. It is
therefore essential to not only understand the thermodynamic ...
Investigating the effect of coarse particle addition on the measured rheological parameters of fine clay slurries
(Stellenbosch : Stellenbosch University, 2007-12)
ENGLISH ABSTRACT: Due to economic and environmental constraints mining operations are placed under
increasing pressure to effectively manage and operate tailings disposal operations.
Restrictions imposed on water usage ...
The modelling of IR emission spectra and solid rocket motor parameters using neural networks and partial least squares
(Stellenbosch : University of Stellenbosch, 2003-04)
ENGLISH ABSTRACT: The emission spectrum measured in the middle infrared (IR) band from the
plume of a rocket can be used to identify rockets and track inbound missiles. It
is useful to test the stealth properties of the ...
Process monitoring and fault diagnosis using random forests
(Stellenbosch : University of Stellenbosch, 2010-12)
ENGLISH ABSTRACT: Fault diagnosis is an important component of process monitoring, relevant in the greater context of developing
safer, cleaner and more cost efficient processes. Data-driven unsupervised (or feature ...
Modelling of process systems with genetic programming
(Stellenbosch : University of Stellenbosch, 2006-12)
Genetic programming (GP) is a methodology that imitates genetic algorithms, which uses mutation and replication to produce algorithms or model structures based on Darwinian survival-of-the-fittest principles. Despite its ...