Remote sensing provides area coverage, and aids the mapping and classification of land cover features, such as vegetation, soil, water and forests. However, with remote sensing using medium to coarse spatial resolution imagery, some difficulties are encountered in the definition of vegetation...
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Uninterruptible Power Supplies (UPSs) are widely used for power conditioning applications, whereby the load is to be supplied with current and voltage waveforms containing minimal disturbance. A UPS also provides emergency power to critical loads in case of utility mains failure, and as such...
Download PDF ↓Although traditional per-phase circuit has been widely used in steady-state analysis and design of induction motors, it is not appropriate to predict dynamic performance of the motor, In order to understand and analyze vector control of induction motors, the dynamic model is necessary....
Production by pressing in its many forms together with sheet metal working constitutes one of the most absorbing branches of production engineering, and one which plays a vital role in domestic life, being largely responsible for many of the comforts which have been brought within the reach of...
Download PDF ↓As with any business organization in a competitive market, the financial viability depends on the ability to maximize its returns at minimum costs. The problem of minimizing the total costs on transmission lines wayleave maintenance or bush clearing is one of minimizing the costs on labour,...
Download PDF ↓Disputes in the construction industry are often inevitable. Disputes arise from the interpretation and application of any part of ambiguous, unplanned and conflicting contract documents. There are many methods which can be used to resolve disputes. The study in this dissertation examined the...
Download PDF ↓All sheet metal forming processes occur after permanent plastic deformation resulting in the material properties changing and therefore it is necessary to determine the extent to which a material can further be deformed for subsequent forming operations. Traditionally, experimental trial and...
Download PDF ↓This research work was to provide a locally produced electric motor to drive the UNZA pump.The work was carried out by using the UNZA pump parameters and electric motor material from published works on the electric motor design and manufacture and real experience from examining electric motors in...
Download PDF ↓Recent developments in the design of variable-speed drives have been aimed at the control of a standard squirrel cage induction motor because of its many attractive features including robustness, reliability and low maintenance requirements. This dissertation demonstrates the design of a drive...
Download PDF ↓This dissertation describes an investigation carried out at Baluba Mine to assess the quality of rock mass and support requirements in haulage drives developed in the -footwall quartzite -Formations. The rock mass o-F the -Footwall Formation is geotechnicallv quantified using the Modi-Fied Basic...
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