Writing in Inderscience's Journal of Design Research, the team explains how the new technology, with further industrial development, could eventually make vast tracts of land around the globe safe once more.
Landmines were first used widely during World War II and continue to represent a significant threat to life and limb in areas afflicted by war. Originally, landmines were used to protect strategic areas such as borders, camps or important bridges and to restrict the movement of enemy forces. The use of landmines has spread to countless national conflicts and they are now commonly used by terrorist and other organisations against civilians and rivals. This has led to a major proliferation of landmines in many areas beyond conventional military conflict zones.
In the absence of records, the low cost of landmines and the vast areas that have been polluted with them due to aerial distribution, clearing landmines has become and increasingly frustrating and hazardous task.
A single landmine might cost $1, but once in the ground locating it and making it safe can cost up to $1000. According to P. van Genderen and A.G. Yarovoy in the Faculty of Electrical Engineering at Delft University of Technology, this cost is prohibitive in most areas affected by landmine use and so a cheaper solution is needed. The researchers also point out that a detection system that does not distinguish between landmines and other buried objects is not viable.
The researchers explain that innovative technologies such as multi-hyper spectral sensors, passive millimetre wave detectors, and charged particle detection could be effective, but are likely to be very costly and complicated to use. Inexpensive methods such as conventional metal detectors and probing of the ground by a human operator are prone to serious error with major repercussions for the operators.
They have now turned to ultra-wideband radar as having the potential to be much easier to operate than the sophisticated technology but be just as effective and crucially far less expensive. The team has now developed a prototype system that successfully detects model landmines in a test environment. The detection rate is always offset by the false alarm rate, the researchers explain. The real step forward can be made if this balance can be made more favourable. Further work and development is now needed to shift the balance between detection rate and false alarm rate.
Jim Corlett | alfa
Further Improvement of Qubit Lifetime for Quantum Computers
09.12.2016 | Forschungszentrum Jülich
Electron highway inside crystal
09.12.2016 | Julius-Maximilians-Universität Würzburg
Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
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