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— This paper reports on tests of the performance of fingerprint recognition technology in rugged outdoor conditions , with an especial concentration on the performance in cold weather. We analyze: 1) chip versus optical fingerprint scanner technology, 2) recognition performance and image quality, and 3) user/device interaction. A outdoor fingerprint door… (More)
In the current context of heightened concerns with explosives security, there is significant interest in technological controls to improve security. It is important to be able to control what is fired, by whom, where and when. This paper describes research Orica has performed to investigate and test biometric systems to address the question of "by whom".… (More)
This overview of RFID in underground mining service applications is set against the backdrop of the major challenges this technology must overcome for successful implementation in rugged environments. It also considers future prospects of RFID in the mining industry.
Structural changes in a ternary gel prepared using the mixed emulsifier system of cetrimide and cetostearyl alcohol after prolonged low temperature (4 degrees C) storage have been studied using freeze-etch transmission electron microscopy and other techniques. The system changed from an opaque smooth gel of high viscosity, low conductivity and low free… (More)