Now showing items 1-10 of 43
High temperature fatigue crack growth behaviour of TIMETAL 21S in an oxidizing environment.
The high temperature fatigue crack growth behaviour of the newly developed, metastable titanium-based alloy, TIMETAL 21S, was investigated in an inert and an oxidizing environment. The investigation adopted a two pronged ...
A study of comminution in a vertical stirred ball mill.
A 20 litre experimental batch and continuous test rig and 5 litre batch and 50 litre continuous test rigs for stirred ball milling were built at the University of Natal and Mintek respectively. All the mills featured a ...
Optimized digital signal processing algorithms applied to radio communications.
The application of digital signal processing to radio communications has come of age with the advent of low power, high speed microprocessors and over the past five years, various transceiver architectures, utilizing ...
Comparison between air drying and steam drying in a fluidized bed.
No abstract available.
The performance of a one and a half stage axial turbine including various tip clearance effects.
The necessary clearance at the tip of unshrouded rotors of axial turbines allows fluid to leak from the pressure to the suction side of the blade and produces an important component of loss that is ultimately responsible ...
The effect of tip clearance and tip gap geometry on the performance of a one and a half stage axial gas turbine.
In a previous work of a similar nature, the performance of a low speed axial turbine with a second stage nozzle was examined with respect to the effect of the variation of tip clearance for various tip shapes. Present ...
Process and modelling studies in forest hydrology.
The demand for timber products in South Africa, and consequently afforestation, is increasing. There exists, however, abundant experimental evidence that trees utilise more soil water than other dryland crops. Because ...
The analysis, simulation and testing of an experimental travelling- wave tube.
As a design and analysis aid for the development of an experimental TWT, a computer program is written which allows the small-signal gain to be computed for various operating conditions, such as various conditions of ...
Computer-aided design of RF MOSFET power amplifiers.
The process of designing high power RF amplifiers has in the past relied heavily on measurements, in conjunction with simple linear theory. With the advent of the harmonic balance method and increasingly faster computers, ...
Non-stationary responses on hoisting cables with slowly varying length.
Cables in hoisting installations, due to their flexibility, are susceptible to vibrations. A common arrangement in industrial hoisting systems comprises a driving winder drum, a steel wire cable, a sheave mounted in headgear, ...