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Abstract

This research paper presents the results of the analyses of the course of technical wear over time carried out for residential masonry buildings located in the mining area of the Lublin Coal Basin (LCB). As a result of the conducted analyses, models of the course of technical wear over time were obtained for the entire building development and for groups of buildings, taking into account the conducted renovation works and preventive structural protection. By comparing the parameters of the developed models, statistically significant differences in the course of technical wear resulting from the quality of maintenance and the use of preventive measures were identified. In addition, the durability of individual groups of structures was estimated and compared. Based on a comparison of the course of technical wear of 22-year-old building structures, unrenovated and with similar structural and material solutions, it was found that the rate of increase in technical wear after 50 years of use is on average 3.5% lower than in the case of unprotected buildings. In addition, the use of preventive structural protection extends the durability of the analysed building structures by an average of over 13 years. The obtained results may e.g. help owners or managers optimise the Maintenance Management of building structures.
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Authors and Affiliations

Adrian Jędrzejczyk
1
Karol Firek
1
Wojciech Kocot
1
Dagmara Rataj
1
ORCID: ORCID

  1. AGH University of Science and Technology, Faculty of Mining Surveying and Environmental Engineering, Al. Mickiewicza 30, 30-059 Kraków
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Abstract

In the investigated area krill occured in low abundance. It was recorded mainly above the shelf and above the continental slope close to the Palmer Archipelago and near the northern shores of Elephant Island. In the central part of the Bransfield Strait E. superba was caught in especially small quantities. In general krill of small size occurred, the size decreasing from the west to the east. Mature krill was dominan in the western part of the investigated area, whereas juveniles in the eastern part. Gravid females were caught very rarely.

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Authors and Affiliations

Henryk Czykieta
Wojciech Kittel
Zbigniew Witek
Norbert Wolnomiejski
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Abstract

Among Gierowski's research, an important place was occupied by works on the past of Silesia. He started Silesian studies that fit into socio‑economic history. He also published syntheses and source editions devoted to the history of Silesia. His research was continued by Józef Lesz-czyński and Krystyn Matwijowski. Leszczyński continued and developed his reflection on the social and legal history of Silesia. Among them, he examined the problems of peasant revolts, the situation of the poorest in Silesia during the Thirty Years' War and after its end. He studied Polish‑Silesian relations in the 17th and 18th centuries. Matwijowski conducted research on the history of Pietism and the history of everyday life in Silesia and works devoted to the past of Lower Silesian towns. Gierowski's research is inspired by Jerzy Maroń, the author of a book devoted to the Thirty Years' War in Silesia, Leszek Ziątkowski, authors part of the history of Wrocław and books about the past of Jews in Silesia. Jacek Dębicki deals with the history of culture in Silesia. Daniel Wojtucki develops studies on socio‑cultural phenomena in Silesia and Lusatia.
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Authors and Affiliations

Filip Wolański
1
ORCID: ORCID

  1. Uniwersytet Wrocławski

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