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Now showing items 1-10 of 324
A needle positioning system for percutaneous procedures
(Stellenbosch : Stellenbosch University, 2012-12)
ENGLISH ABSTRACT: In percutaneous procedures, where the surgeon inserts a needle into a target in
the patient, it is challenging to access the target at the rst attempt. Repeated
needle insertion attempts are highly ...
Simulation of a syngas from coal production plant coupled to a high temperature nuclear reactor
(Stellenbosch : Stellenbosch University, 2012-12)
ENGLISH ABSTRACT: In light of the rapid depletion of the world’s oil reserves, concerns about energy
security prompted the exploration of alternative sources of liquid fuels for
transportation. One such alternative is ...
Development,testing and fluid interaction simulation of a bioprosthetic valve for transcatheter aortic valve implantation
(Stellenbosch : Stellenbosch University, 2012-12)
ENGLISH ABSTRACT: Bioprosthetic heart valves (BHVs) for transcatheter aortic valve implantation (TAVI) have been rapidly developing over the last decade since the first valve replacement using the TAVI technique. TAVI is ...
Development of a low cost secondary slave manipulator for a minimally invasive robotic surgical system
(Stellenbosch : Stellenbosch University, 2012-12)
ENGLISH ABSTRACT: Minimally Invasive Surgery (MIS) in human beings is performed by making small incisions in the abdominal region of the patient and inflating the abdominal cavity with CO2. This procedure enables the surgeon ...
Performance and thermo-mechanical cost evaluation of API 661 air-cooled heat exchangers
(Stellenbosch : Stellenbosch University, 2012-12)
ENGLISH ABSTRACT: The optimal design of a heat exchanger for a specified heat transfer, pressure drop
and set of ambient conditions entails minimising space, weight, material usage and
overall cost. However, the variables ...
Cost model for bipolar plate manufacture
(Stellenbosch : Stellenbosch University, 2012-12)
ENGLISH ABSTRACT: This thesis gives a cost model for the manufacture of bipolar plates in South
Africa. The methods for the manufacture considered are machining, using a
micro-milling machine, and compression moulding. ...
Applying process mining to analyse business process performance in the Physical Asset Management environment
(Stellenbosch : Stellenbosch University, 2015-12)
ENGLISH ABSTRACT: Physical Asset Management (PAM) has become a vital part of asset intensive
organisations in recent years. The rise of standards associated with Asset Management (AM) and the competitive nature of large ...
The analysis and optimization of an axial compressor
(Stellenbosch : Stellenbosch University, 2015-12)
ENGLISH ABSTRACT: Axial compressors are widely used in a variety of contexts. When compared to centrifugal compressors, axial compressors offer higher pressure ratios and efficiencies. Due to the complex relationship between ...
Investigating the effect of aerodynamic damping on an axial flow fan blade
(Stellenbosch : Stellenbosch University, 2015-12)
ENGLISH ABSTRACT: Axial flow fans used in air-cooled condensers experience a variation in blade loading due to distorted inlet flow patterns and obstacles in close proximity to the fan blades. The fan blades vibrate at ...
Simultaneous measurement of air flow conditions and resultant blade and gearbox loading at large-scale cooling system fans
(Stellenbosch : Stellenbosch University, 2012-12)
ENGLISH ABSTRACT: Axial flow fans used in large-scale air-cooled steam condensers (ACSCs) may operate
under distorted inflow conditions. These conditions occur due to the prevailing wind
conditions, the presence of ...