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Iskalni niz: "avtor" (Gorazd Žibret) .

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ROBOMINERS - Developing a bio-inspired modular robot-miner for difficult to access mineral deposits
Luís Lopes, Balázs Bodó, Claudio Rossi, Stephen Henley, Gorazd Žibret, Alicja Kot-Niewiadomska, Vitor Correia, 2020

Povzetek: Within the ROBOMINERS project an innovative technology for the future exploitation of small and difficult to access mineral deposits is being studied. The project has two main objectives. First, the development of a bioinspired reconfigurable robotic miner prototype, able to navigate, explore and mine selectively with a certain degree of autonomy. The robot-miner will be able to work under different conditions, making the exploitation of many mineral deposits economically feasible, while reducing social and environmental impacts associated with conventional mining methods. The second objective is the creation of a vision of a new mining ecosystem, its function, parts, research roadmaps and visions for years 2030 and 2050, including creation of novel ideas from other sectors, particularly robotics. The robotic ecosystem concept will be tested in representative sites across Europe with simulations, showcasing the different mining environments and conditions where it can be applied.
Ključne besede: avtonomni robot, rudniki, prospekcija, mineralne surovine
DiRROS - Objavljeno: 06.01.2021; Ogledov: 923; Prenosov: 356
.pdf Celotno besedilo (2,56 MB)

UNEXUP: robot-based exploration technology for underground flooded mines
Norbert Zajzon, Balázs Bodó, Luís Lopes, Gorazd Žibret, Márcio Tameirão Pinto

Povzetek: UNEXUP is a direct continuation of the UNEXMIN project. In UNEXMIN efforts were made towards the design, development and testing of a robotic exploration technology for underground flooded mines, with navigational and geoscientific instruments. In UNEXUP the main goal is to raise commercial interest and improve the system's hardware, software and capabilities. The UX-1 NEO, to be developed and tested in 2020, will address the limitations detected during UNEXMIN field missions, and will meet the needs and requirements from mining companies, geological surveys and other potential customers. In addition, a new robot will be built and added to the system, to be ready in 2021, which will open further mineral exploration possibilities.
DiRROS - Objavljeno: 07.01.2021; Ogledov: 887; Prenosov: 411
.pdf Celotno besedilo (1,68 MB)

Distribution of Pb, Zn and Cd in stream and alluvial sediments in the area with past Zn smelting operations
Barbara Čeplak, Gorazd Žibret

Povzetek: The sources of Zn, Pb and Cd in alluvial and stream sediments have been studied in the area of historical Zn smelting tradition. 30 samples of stream sediments and samples from 4 alluvial sediment profiles were collected. Fractions 0.125–0.063 and < 0.063 mm were analysed by the means of ICP-MS prior 4-acid digestion. The highest levels of Zn, Cd and Pb were detected in the alluvial sediments in the closest vicinity to the abandoned slag and ore roasting residue waste dumps, reaching 96 and 4520 mg/kg, 522 and 26,800 mg/kg and 3.7 and 31 mg/kg for Pb, Zn and Cd in stream and alluvial sediments, respectively. The Voglajna River then transports contamination particles into the Savinja River, which afterwards flows into the Sava River. Consequently, the anomaly can even be detected in the Sava River, more than 30 km downstream. Higher levels of Pb, Zn and Cd have been found in fraction < 0.063 mm compared to 0.125–0.063 mm fraction. Impacts of historically contaminated soil erosion and in particular the wash-out of Zn-smelting waste from the improperly managed waste dump were recognised as the dominant sources of Zn, Cd and Pb in the stream and alluvial sediments.
Ključne besede: onesnaženje okolja, rečni sedimenti, porazdelitev elementov, topilništvo
DiRROS - Objavljeno: 03.03.2022; Ogledov: 99; Prenosov: 32
.pdf Celotno besedilo (1,76 MB)

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