Collapse in the mines can be foreseen in advance and the caving-in location and time can be identified. This has become possible due to the basic research carried out by scientists of the Ioffe Physical & Engineering Institute, Russian Academy of Sciences. Specialists of INTERUNIS company have undertaken to embody the above concepts in a prototype model of the device.
The system will consist of the ’’case on wheels’’ containing the computer and signal processing cards, and several sensors (16 sensors are planned to be installed in a test sample) connected to the computer by cables. The sensors will be immured in the walls of the mine or of any other underground depositary to be surveyed. The sensors catch elastic waves emitted by rock while breaking up, once a certain threshold value is reached, the device will produce danger warning and will indicate the exact location where the breaking-down is going to take place.
The researchers have proceeded from the fact that rock does not disrupt at an instant, the breaking-down is sometimes preceded by a lengthy period of strain accumulation. Initially, small bed joints are formed in different locations, the process can last pretty long, but when the bed joints become numerous, they immediately combine into large cracks and emit elastic waves of major energy - at this point, the process becomes critical. During major earthquakes, breakings dissect the earth surface and can be as long as several kilometers, but the way they are formed is similar to the one taking place underground. Therefore, the method of the threat area determination proposed by the physicists headed by professor Kuksenko is also applicable to forecasting major calamities.
Tatiana Pitchugina | alfa
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A new 3D viewer for improved digital geoscience mapping
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Optical quantum computers can revolutionize computer technology. A team of researchers led by scientists from Münster University and KIT now succeeded in putting a quantum optical experimental set-up onto a chip. In doing so, they have met one of the requirements for making it possible to use photonic circuits for optical quantum computers.
Optical quantum computers are what people are pinning their hopes on for tomorrow’s computer technology – whether for tap-proof data encryption, ultrafast...
The Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP has been developing various applications for OLED microdisplays based on organic semiconductors. By integrating the capabilities of an image sensor directly into the microdisplay, eye movements can be recorded by the smart glasses and utilized for guidance and control functions, as one example. The new design will be debuted at Augmented World Expo Europe (AWE) in Berlin at Booth B25, October 18th – 19th.
“Augmented-reality” and “wearables” have become terms we encounter almost daily. Both can make daily life a little simpler and provide valuable assistance for...
With the help of artificial intelligence, chemists from the University of Basel in Switzerland have computed the characteristics of about two million crystals made up of four chemical elements. The researchers were able to identify 90 previously unknown thermodynamically stable crystals that can be regarded as new materials. They report on their findings in the scientific journal Physical Review Letters.
Elpasolite is a glassy, transparent, shiny and soft mineral with a cubic crystal structure. First discovered in El Paso County (Colorado, USA), it can also be...
For the first time, Fraunhofer IKTS shows additively manufactured hardmetal tools at WorldPM 2016 in Hamburg. Mechanical, chemical as well as a high heat resistance and extreme hardness are required from tools that are used in mechanical and automotive engineering or in plastics and building materials industry. Researchers at the Fraunhofer Institute for Ceramic Technologies and Systems IKTS in Dresden managed the production of complex hardmetal tools via 3D printing in a quality that are in no way inferior to conventionally produced high-performance tools.
Fraunhofer IKTS counts decades of proven expertise in the development of hardmetals. To date, reliable cutting, drilling, pressing and stamping tools made of...
At AKL’16, the International Laser Technology Congress held in May this year, interest in the topic of process control was greater than expected. Appropriately, the event was also used to launch the Industry Working Group for Process Control in Laser Material Processing. The group provides a forum for representatives from industry and research to initiate pre-competitive projects and discuss issues such as standards, potential cost savings and feasibility.
In the age of industry 4.0, laser technology is firmly established within manufacturing. A wide variety of laser techniques – from USP ablation and additive...
27.09.2016 | Event News
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27.09.2016 | Life Sciences
27.09.2016 | Physics and Astronomy
27.09.2016 | Life Sciences