The Sixteenth Workshop on Nonstationary Systems and Their Applications February 5 – 8, 2023, Gródek nad Dunajcem, Poland

Researchers from WUST and DMC appeared at the sixteenth Gródek workshop on Nonstationary Systems and their Applications to show some very useful applications of mathematics to be implemented in mining-related problems.

Among other magnificent researchers from all around the world, our colleagues have presented their research effects and interesting ideas:

  • Agnieszka Wyłomańska, Wrocław University of Science and Technology, Poland
    “The importance of the background noise properties for the vibration-based local damage detection”
  • Wojciech Żuławiński, Wrocław University of Science and Technology, Poland
    “Detection of cyclostationarity by robust statistics for signal disturbed by non-Gaussian noise”
  • Katarzyna Skowronek, Wrocław University of Science and Technology, Poland
    “Assessment of background noise properties in time and time-frequency domains in the context of vibration-based local damage detection in real environment”

Poster special session New methods of processing non-stationary signals with non- Gaussian characteristics for the purpose of monitoring complex mechanical structures

  • Anita Drewnicka, Wrocław University of Science and Technology, Poland
    “The approach of damage detection in the presence of non-Gaussian noise with analysis of probability distributions applied to the time-frequency maps of the vibration signal”
  • Mateusz Gabor, Wrocław University of Science and Technology, Poland
    “Nonnegative matrix factorization with beta-divergence based cost functions”
  • Justyna Hebda-Sobkowicz, Wrocław University of Science and Technology, Poland
    “Informative frequency band selection in presence of non-Gaussian (impulsive) noise – adaptation of cross-dependence measures, alternative to classical ones”
  • Daniel Kuzio, Wrocław University of Science and Technology, Poland
    “Identification of fault frequency variation in envelope spectrum in vibration-based local damage detection in changing load/speed condition”
  • Anna Michalak, Wrocław University of Science and Technology, Poland
    “Influence of alpha-stable noise on the effectiveness of Nonnegative Matrix Factorization –Simulations and real data analysis”
  • Hamid Shiri, Paweł Zimroz, Wrocław University of Science and Technology,Poland
    “Robust statistic model for long-term condition monitoring data under non-stationary operating conditions in the presence of noise with non-Gaussian characteristics”
  • Jacek Wodecki, Wrocław University of Science and Technology, Poland
    “Cyclostationary vibration data analysis in real-life machine diagnostics – a case study of bearing failure in calcium carbonate production plant”

DMC articles in IOP Conference Series: Earth and Environmental Science

23-25 June 2021, the Conference of PhD Students and Young Scientists was held. The conference enables young scientists from all over the world to exchange scientific and technical experiences and ideas in four thematic panels – Mining, Earth and Space Sciences, Geoengineering, and Geoinformation. The research results of DMC members have been published as part of the IOP Conference Series: Earth and Environmental Science in 11 articles.

List of articles:
https://iopscience.iop.org/issue/1755-1315/942/1?gridset=show

Banasiewicz, Aleksandra; Wroblewski, Adam; Gola, Sebastian

Preliminary sources identification of nitric oxide (NO) emissions in underground mine Journal Article

In: IOP Conference Series: Earth and Environmental Science, vol. 942, no. 1, pp. 012019, 2021.

Links

Wroblewski, Adam; Banasiewicz, Aleksandra; Gola, Sebastian

Heat Balance Determination Methods for Mining Areas in Underground Mines - A Review Journal Article

In: IOP Conference Series: Earth and Environmental Science, vol. 942, no. 1, pp. 012011, 2021.

Links

Goralczyk, Mateusz; Michalak, Anna; Sliwinski, Pawel

Drill bit deterioration estimation with the Random Forest Regressor Journal Article

In: IOP Conference Series: Earth and Environmental Science, vol. 942, no. 1, pp. 012013, 2021.

Links

Zietek, Bartlomiej; Wodecki, Jacek; Michalak, Anna; Sliwinski, Pawel

Drill bit state-oriented drilling process classification with time-series data for wheeled drilling rigs Journal Article

In: IOP Conference Series: Earth and Environmental Science, vol. 942, no. 1, pp. 012010, 2021.

Links

Rudzki, Pawel; Krot, Pavlo

Dynamics control of powered hydraulic roof supports in the underground longwall mining complex Journal Article

In: IOP Conference Series: Earth and Environmental Science, vol. 942, no. 1, pp. 012014, 2021.

Links

Michalak, Anna; Wodecki, Jacek

Parametric simulator of cyclic and non-cyclic impulsive vibration signals for diagnostic research applications Journal Article

In: IOP Conference Series: Earth and Environmental Science, vol. 942, no. 1, pp. 012015, 2021.

Links

Wodecki, Jacek; Michalak, Anna

Fault-related impulsive component detection for vibration-based diagnostics in the presence of random impulsive noise Journal Article

In: IOP Conference Series: Earth and Environmental Science, vol. 942, no. 1, pp. 012016, 2021.

Links

Zimroz, Pawel; Shiri, Hamid; Wodecki, Jacek

Analysis of the vibro-acoustic data from test rig -comparison of acoustic and vibrational methods Journal Article

In: IOP Conference Series: Earth and Environmental Science, vol. 942, no. 1, pp. 012017, 2021.

Links

Zimroz, Pawel; Wroblewski, Adam; Trybala, Pawel

Detection of a predefined acoustic pattern by a measurement system on a drone and its application to search for a missing man in an underground mine Journal Article

In: IOP Conference Series: Earth and Environmental Science, vol. 942, no. 1, pp. 012018, 2021.

Links

Shiri, Hamid; Wodecki, Jacek

Analysis of the sound signal to fault detection of bearings based on Variational Mode Decomposition Journal Article

In: IOP Conference Series: Earth and Environmental Science, vol. 942, no. 1, pp. 012020, 2021.

Links

Trybala, Pawel

LiDAR-based Simultaneous Localization and Mapping in an underground mine in Złoty Stok, Poland Journal Article

In: IOP Conference Series: Earth and Environmental Science, vol. 942, no. 1, pp. 012035, 2021.

Links

Innovation in the copper industry

On 18 November 2021, an interdisciplinary scientific conference entitled: “Innovation in the copper industry” was held, organized by Jan Wyżykowski University and Centrum Badań Jakości sp. z. o.o. The theme of the conference concerned the presentation of research and project work related to the development of the copper industry. During the event, Professor Radosław Zimroz in his presentation “Interdisciplinary research and technology development at the GGG PWR Department for sustainable use of raw materials on the example of KGHM Polska Miedź S.A.”, presented innovative solutions from the project: OPMO, AMICOS, and SafeMe4Mine.

Continue reading “Innovation in the copper industry”

Team member distincted

We are happy to announce that dr Jacek Wodecki has been awarded with a scholarship within a “START” programme funded by National Science Foundation (pl. Fundacja na rzecz Nauki Polskiej). The scholarship has been prepared for young scientists under the age of 30, and dr Wodecki has been selected as one of 100 researchers from all over the country out of over a thousand applications.

WUST at hackathon CuValley Hack

On the weekend of June 11-13, the data analytics competition – a hackathon CuValley Hack – took place. DMC and WUST representatives were among 69 teams and almost 300 participants tackling three challenges set by KGHM Polska Miedź S.A. WildLab Team consisting of: Mateusz Góralczyk, Justyna Hebda-Sobkowicz, Anna Michalak, Bartłomiej Ziętek faced the problem of analyzing data from self-propelled mining machines in the context of predicting failures of their components. Despite hundreds of gigabytes of analyzed data and almost 40 hours of hard work, they did not advance to the final six in their category.

The second team, Tremor Hunters, composed of Paweł Trybała, Dariusz Głąbicki and Karolina Owczarz, tried to create a model predicting the occurrence of tremors in the area of underground exploitation. Tremor Hunters made it to the final four of the best teams in their category and presented their results during the live stream and Q&A session with the competition jury. Unfortunately, two competing solutions found more recognition among the judges and won the main prizes.

Various accompanying competitions were also held during the hackathon. We are pleased to announce that the knowledge quiz was completely dominated by representatives of DMC and WUST, who took 5 places among the TOP6!

New article published

We are proud to announce that members of DMC (Krzysztof Chudy, Magdalena Worsa-Kozak, and Agnieszka Wójcik) have just published another scientific article. The article presents the results of the preliminary research, which confirmed the existence of not obvious hydrogeochemical stratification in the shaft.

The paper has been published in the special issue of the Water journal entitled “Geochemistry of Groundwater”

Chudy, Krzysztof; Worsa-Kozak, Magdalena; Wojcik, Agnieszka

Groundwater Chemistry and Stratification in the Flooded Hard-Coal Mine Shaft “Nowy I” (Nowa Ruda Region, SW Poland) Journal Article

In: Water, vol. 12, no. 11, pp. 3257, 2020.

Links

Zaproszenie na Dolnośląski Festiwal Nauki

Zespół Digital Mining Center Wydziału Geoinżynierii, Górnictwa i Geologii Politechniki Wrocławskiej w ramach Dolnośląskiego Festiwalu Nauki serdecznie zaprasza na warsztaty on-line na temat:

Górnictwo – maszyny i roboty – rzeczywistość i świat wirtualny.

Przygotujcie się na przygodę z cyfrowym górnictwem. Opowiemy o tym jak roboty i drony pomagają górnikom w pracy i jak pozwalają pracować bezpieczniej. Pokażemy prawdziwą kopalnię dzięki możliwościom technologii filmowania 360. Pokażemy testy nowoczesnych urządzeń na co dzień wspierających pracę pod ziemią. Opowiemy o ciekawych międzynarodowych projektach, współfinansowanych przez EIT KIC Raw Materials, które realizuje DMC.

Warsztaty są otwarte dla wszystkich chętnych uczestników bez limitu miejsc i bez wcześniejszych zapisów.

Odbędą się on-line na platformie ZOOM w 3 terminach do wyboru:

• 21. września 2020r. o godz. 10.00 – 11.00

• 22. września 2020r. o godz. 10.00 – 11.00

• 23. września 2020r. o godz. 10.00 – 11.00

https://pwr-edu.zoom.us/j/92677353422

DMC member awarded!

We are very happy to announce that our member Justyna Hebda-Sobkowicz has been awarded a diploma of prof. Ludwik Muller for the best presentation about “Conditional variance statistic in application to the local damage detection in mining machine” on the Machine Diagnostics Symposium (XLVII Ogólnopolskie Sympozjum DIAGNOSTYKA MASZYN) that we have recently attended.

Continue reading “DMC member awarded!”