A near eld beamforming array is investigated for use in a radar system that is part of a hybrid elastic electromagnetic technique for detecting land mines The radar is used to measure the displacement of the surface of the earth and land mines due to elastic waves in the earth The beamforming array is used to obtain a su ciently small spatial resolution for the measurement of the displacement w...

Researchers at the National Institute for Occupational Safety and Health (NIOSH), Spokane Research Laboratory, are investigating technology and methods to monitor the blind areas around large haulage equipment used in surface mines. On average, six fatalities a year can be attributed to equipment colliding with other vehicles or pedestrian workers, or backing over the edge of a dump point. Seve...

This work is concerned with the detection and the identification of immersed objects. Our efforts have been motivated by, and concentrated on, the specific problem of the LIDAR imagery of underwater mines. The difficulties of this problem are illustrated by the experimental data used in this study. We follow the standard approach which suggests to model the surface elevation as a random field. ...

A prototype system that employs seismic surface (Rayleigh) waves and non-contact displacement sensors for the detection of buried landmines is being developed. The operating principle of this system is to interrogate the ground surface motion, resulting from a remote seismic source, in a region surrounding, and immediately above, a mine using a twodimensional array of non-contact sensors. The d...

This paper presents a simulation framework incorporating traffic simulator with classical discrete event simulation model of internal transport systems. The objective behind this integration is to provide a simulation model in which traffic is captured in the internal haulage networks. For this purpose, the highly detailed microscopic traffic modelling approach is adopted. The developed simulat...

PROBLEM Blasting is a hazardous component of surface mining. Serious injuries and fatalities result from improper judgment or practice during rock blasting. This paper describes several fatal injury case studies, analyzes causative factors, and emphasizes preventive measures. METHOD This study examines publications by MSHA, USGS, and other authors. The primary source of information was MSHA's...

1 MINES ParisTech, UMR CNRS 7635, BP 207, 06904 Sophia-Antipolis, France [email protected] 2 MINES ParisTech, UMR CNRS 7635, BP 207, 06904 Sophia-Antipolis, France ghina.el [email protected] 3 MINES ParisTech, UMR CNRS 7635, BP 207, 06904 Sophia-Antipolis, France [email protected] 4 MINES ParisTech, UMR CNRS 7635, BP 207, 06904 Sophia-Antipolis, France e...

During World War II (1939–1945), German forces placed approximately 1.4 million landmines along the Danish west coast as part of the West Atlantic Wall. After the war, manual clearance and the use of tanks with rollers operated by former German soldiers under Danish and British command removed the majority of these mines. While the boundary of each minefield was known in the area of Skallingen,...

The high cost of transportation fuels and the environmental risks associated with acquiring and using nonrenewable energy sources have created a demand for developing renewable bioenergy crops. Switchgrass ( L.), a warm-season perennial grass, is a promising feedstock due to its high biomass production under a wide range of growing conditions and its satisfactory forage quality and chemical com...