Mobile robots are no longer used exclusively in research laboratories and indoor controlled environments, but now also dynamic industrial including outdoor sites. Mining is one industry where autonomous vehicles increasingly to increase the safety of workers, as well augment productivity, efficiency, predictability processes. Since navigate inside tunnels underground mines, this kind navigation...

Underground mines typically do not represent the best working conditions for humans, and many mining companies have the intent to remove all humans from the ore extraction areas. To achieve this goal automation of the mining machinery is required. One of the riskier jobs in a mine is to operate the Load-Haul-Dump (LHD) vehicles that are used to transport the ore from the blast site to a truck, ...

Understanding the variability of foraging behavior within a population of predators is important for determining their role in the ecosystem and how they may respond to future ecosystem changes. However, such variability has seldom been studied in harbor seals on a fine spatial scale (<30 km). We used a combination of standard and Bayesian generalized linear mixed models to explore how environm...

In Finland fogging in mine ramps is a common problem. Fog forms when warm and humid exhaust air moves upwards the ramp, where the skin temperature of surrounding wallrock decreases to about 10°C. Changes in fog thickness and lengths of fog-filled parts of the ramp depend at least on climatic conditions outside, diesel equipment usage in the mine, and the length of working sequence at a time. In...

Differential SAR Interferometry (D-InSAR) is an effective tool in monitoring land subsidence because of its greater coverage area and better resolution of height change. A series of Japanese Earth Resources Satallite-1 (JERS-1) images from 1992 to 1998 has been used in monitoring the mine subsidence in the test site of this study, one of the important coal mining areas in China. D-InSAR procedu...

Among the promising new developments towards cost-effective long-haul transmission are chirped multi-channel Fiber Bragg Gratings (FBG). In this paper we discuss the feasibility of long-haul WDM optical transmission using only FBGs for in-line dispersion compensation. We show successful transmission of 32x10.7-Gbit/s NRZ modulated channels over 3,800-km using low group delay ripple slope-matche...

The economics of long haul trucking on both continuous and intermittent Electric Highways were evaluated from a technical perspective as alternatives to using conventional megawatt chargers. study revealed complex sensitive interplay between the various factors related vehicle, its battery pack configuration construction electrified highway. Key preliminary outcomes showed that 250 kW highway p...