1. Evolution of microstructure and embrittlement during the tempering process in SiCrCu medium-carbon steelsPavel Salvetr, Aleksandr Gokhman, Črtomir Donik, Zbyšek Nový, Jakub Kotous, Matjaž Godec, 2023, izvirni znanstveni članek Ključne besede: medium-carbon steel, tempering martensite embrittlement, microstructure, mechanical properties Objavljeno v DiRROS: 08.03.2024; Ogledov: 95; Prenosov: 61 Celotno besedilo (4,44 MB) Gradivo ima več datotek! Več... |
2. In vitro and in vivo degradation behavior of Mg-0.45Zn-0.45Ca (ZX00) screws for orthopedic applicationsDiana C. Martinez, Anna Dobkowska, Romy Marek, Hanna Ćwieka, Jakub Jaroszewicz, T. Plociński, Črtomir Donik, Heike Helmholz, Bérengère Luthringer-Feyerabend, Berit Zeller-Plumhoff, Regine Willumeit-Römer, Wojciech Święszkowski, 2023, izvirni znanstveni članek Ključne besede: magnesium alloys, biodegradable implants, microstructure, electron microscopy, corrosion layers Objavljeno v DiRROS: 08.03.2024; Ogledov: 96; Prenosov: 94 Celotno besedilo (23,65 MB) Gradivo ima več datotek! Več... |
3. Possibilities for improvement of mechanical properties of high-strength medium-carbon SiCr steelsPavel Salvetr, Jakub Kotous, Črtomir Donik, Aleksandr Gokhman, Zbyšek Nový, 2023, izvirni znanstveni članek Ključne besede: spring steel, 54SiCr6 steel, microstructure, mechanical properties Objavljeno v DiRROS: 02.02.2024; Ogledov: 212; Prenosov: 71 Celotno besedilo (1,44 MB) Gradivo ima več datotek! Več... |
4. Effect of double-step and strain-assisted tempering on properties of medium-carbon steelPavel Salvetr, Andrea Školáková, Jakub Kotous, J. Drahokoupil, Daniel Melzer, Zdeňek Jansa, Črtomir Donik, Aleksandr Gokhman, Zbyšek Nový, 2023, izvirni znanstveni članek Ključne besede: medium-carbon steel, tempering, strengthening, mechanical properties, microstructure Objavljeno v DiRROS: 02.02.2024; Ogledov: 151; Prenosov: 72 Celotno besedilo (9,82 MB) Gradivo ima več datotek! Več... |
5. Effect of Cu alloying on mechanical properties of medium-c steel after long-time tempering at 500 °CPavel Salvetr, Aleksandr Gokhman, Milan Svoboda, Črtomir Donik, Ivana Podstranská, Jakub Kotous, Zbyšek Nový, 2023, izvirni znanstveni članek Ključne besede: long-time tempering, strengthening, Cu precipitate, medium-C steel, mechanical properties Objavljeno v DiRROS: 02.02.2024; Ogledov: 195; Prenosov: 72 Celotno besedilo (6,20 MB) Gradivo ima več datotek! Več... |
6. Extending BIM for air quality monitoringMichael Nicolas Mrissa, Jan Vcelak, László Hajdu, Balázs Dávid, Miklós Ferenz Krész, Jakub Michal Sandak, Anna Malgorzata Sandak, Rok Kanduti, Monika Varkonji, Anja Jutraž, Katja Malovrh Rebec, 2020, objavljeni znanstveni prispevek na konferenci Povzetek: As we spend more than 90% of our time inside buildings, indoor environmental quality is a major concern for healthy living. Recent studies show that almost 80% of people in European countries and the United States suffer from SBS (Sick Building Syndrome), which affects physical health, productivity and psychological well-being. In this context, environmental quality monitoring provides stakeholders with crucial information about indoor living conditions, thus facilitating building management along its lifecycle, from design, construction and commissioning to usage, maintenance and end-of-life. However, currently available modelling tools for building management remain limited to static models and lack integration capacities to efficiently exploit environmental quality monitoring data. In order to overcome these limitations, we designed and implemented a generic software architecture that relies on accessible Building Information Model (BIM) attributes to add a dynamic layer that integrates environmental quality data coming from deployed sensors. Merging sensor data with BIM allows creation of a digital twin for the monitored building where live information about environmental quality enables evaluation through numerical simulation. Our solution allows accessing and displaying live sensor data, thus providing advanced functionality to the end-user and other systems in the building. In order to preserve genericity and separation of concerns, our solution stores sensor data in a separate database available through an application programming interface (API), which decouples BIM models from sensor data. Our proof-of-concept experiments were conducted with a cultural heritage building located in Bled, Slovenia. We demonstrated that it is possible to display live information regarding environmental quality (temperature, relative humidity, CO2, particle matter, light) using Revit as an example, thus enabling end-users to follow the conditions of their living environment and take appropriate measures to improve its quality Ključne besede: Building Information Model, internet of things, environmental quality monitoring, healthy living Objavljeno v DiRROS: 19.01.2024; Ogledov: 179; Prenosov: 81 Celotno besedilo (18,89 MB) Gradivo ima več datotek! Več... |
7. Subspecies-specific sequence detection for differentiation of Mycobacterium abscessus complexAlina Minias, Lidia Żukowska, Jakub Lach, Tomasz Jagielski, Dominik Strapagiel, Su-Young Kim, Won-Jung Koh, Heather Adam, Ruth Bittner, Sara Truden, Marija Žolnir-Dovč, Jarosław Dziadek, 2020, izvirni znanstveni članek Povzetek: Mycobacterium abscessus complex (MABC) is a taxonomic group of rapidly growing, nontuberculous mycobacteria that are found as etiologic agents of various types of infections. They are considered as emerging human pathogens. MABC consists of 3 subspecies - M. abscessus subsp. bolletti, M. abscessus subsp. massiliense and M. abscessus subsp. abscessus. Here we present a novel method for subspecies differentiation of M. abscessus named Subspecies-Specific Sequence Detection (SSSD). This method is based on the presence of signature sequences present within the genomes of each subspecies of MABC. We tested this method against a virtual database of 1505 genome sequences of MABC. Further, we detected signature sequences of MABC in 45 microbiological samples through DNA hybridization. SSSD showed high levels of sensitivity and specificity for differentiation of subspecies of MABC, comparable to those obtained by rpoB sequence typing. Ključne besede: Mycobacterium abscessus complex, nontuberculous mycobacteria, diagnosis Objavljeno v DiRROS: 23.11.2020; Ogledov: 12033; Prenosov: 1001 Celotno besedilo (1,23 MB) Gradivo ima več datotek! Več... |
8. Genomic insights into the Mycobacterium kansasii complex : an updateTomasz Jagielski, Paulina Borówka, Zofia Bakuła, Jakub Lach, Błażej Marciniak, Anna Brzostek, Jarosław Dziadek, Mikołaj Dziurzyński, Lian Pennings, Jakobus van Ingen, Marija Žolnir-Dovč, Dominik Strapagiel, 2020, izvirni znanstveni članek Povzetek: Only very recently, has it been proposed that the hitherto existing Mycobacteriumkansasii subtypes (I–VI) should be elevated, each, to a species rank. Consequently, the former M. kansasii subtypes have been denominated as Mycobacterium kansasii (former type I), Mycobacterium persicum (II), Mycobacterium pseudokansasii (III), Mycobacterium innocens (V), and Mycobacterium attenuatum (VI). The present work extends the recently published findings by using a three-pronged computational strategy, based on the alignment fraction-average nucleotide identity, genome-to-genome distance, and core-genome phylogeny, yet essentially independent and much larger sample, and thus delivers a more refined and complete picture of the M. kansasii complex. Furthermore, five canonical taxonomic markers were used, i.e., 16S rRNA, hsp65, rpoB, and tuf genes, as well as the 16S-23S rRNA intergenic spacer region (ITS). The three major methods produced highly concordant results, corroborating the view that each M. kansasii subtype does represent a distinct species. This work not only consolidates the position of five of the currently erected species, but also provides a description of the sixth one, i.e., Mycobacterium ostraviense sp. nov. to replace the former subtype IV. By showing a close genetic relatedness, amonophyletic origin, and overlapping phenotypes, our findings support the recognition of the M. kansasii complex (MKC), accommodating
all M. kansasii-derived species and Mycobacterium gastri. None of the most commonly used taxonomic markers was shown to accurately distinguish all the MKC species. Likewise, no species-specific phenotypic characteristics were found allowing for species differentiation within the complex, except the non-photochromogenicity of M. gastri.
To distinguish, most reliably, between the MKC species, and between M. kansasii and M. persicum in particular, whole-genome-based approaches should be applied. In the absence of clear differences in the distribution of the virulence-associated region of difference 1 genes among the M. kansasii-derived species, the pathogenic potential of each of these species can only be speculatively assessed based on their prevalence among the clinically relevant population. Large-scale molecular epidemiological studies are needed to provide a better understanding of the clinical significance and pathobiology of the MKC species. The results of the in vitro drug susceptibility profiling emphasize the priority of rifampicin administration in the treatment of MKC-induced infections, while
undermining the use of ethambutol, due to a high resistance to this drug. Ključne besede: Mycobacteriumkansasii complex, Mycobacteriumostraviense sp. nov., non-tuberculous mycobacteria
(NTM), whole genome sequencing, taxonomy Objavljeno v DiRROS: 31.07.2020; Ogledov: 1887; Prenosov: 1337 Celotno besedilo (10,22 MB) Gradivo ima več datotek! Več... |