Ventilation circuit for large and gassy longwall panels – an Australian perspective

Deformation mechanism and optimum design for large cross-sectional longwall installation roadway under compound roof

Both the deformation characters and the failure mode of the large cross-sectional longwall installation roadway under compound roof are becoming an emergent issue than ever before due to the rapid development of modern mining equipment. Various engineering applications have revealed that the insufficient design and inappropriate support technology are the main reasons for the fatal accidents as...

Intranet Effectivenes in Large Corporation (an Australian Perspective)

The research reported in this paper looks at satisfaction with the intranet and the importance of information sources in a large corporation in Australia. 1251 subscribers to the intranet took part in the survey. This research has revealed that intranet is a major provider of information in this particular corporation. The participants of the survey indicated that the intranet should be able to...

Field study of longwall coal mine ventilation and bleeder performance

Longwall coal mine operators in the U.S. are required to ventilate multipanel longwall districts, but may have little or no knowledge about what happens to the ventilation air between the inlet evaluation points (IEPs), bleeder evaluation points (BEPs) and bleeder fans. The effectiveness of bleeder performance can directly influence the ability of a ventilation system to remove and dilute coal ...

development and implementation of an optimized control strategy for induction machine in an electric vehicle

in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...

Internet economics and policy: An Australian perspective