TY  - JOUR
AU  - Popović, Slađana
AU  - Stupar, Milos
AU  - Unkovic, Nikola
AU  - Subakov-Simić, Gordana
AU  - Grbic, Milica Ljaljevic
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2293
AB  - The presence of biofilms on stone monuments can lead to biodeterioration processes that significantly lower not only the aesthetic value of cultural heritage sites but also cause considerable physical and chemical damage to stone surfaces. In terrestrial environments, cyanobacteria have a significant role in biofilm formation on a variety of natural and artificial stone substrata, including granite, sandstone, limestone, lime mortar, etc. Studies on cyanobacterial diversity and estimation of biodeteriorative activity on stone cultural heritage objects can be very important for conservators and restorers, and cyanobacteria removal from stone monuments is currently a great challenge for conservation science. In that sense, the diversity of terrestrial cyanobacteria was investigated at six localities in Serbia. Samples for cyanobacterial analyses were taken from surface biofilms covering different substrata: granite and lime mortar (The Monument to the Unknown Hero), sandstone (Branko's Bridge, Eiffel's Lock) and carbonate rock (Medieval tombstones from Mramorje and Rastite, Gradac Monastery). A total of 18 cyanobacterial taxa were identified. The highest diversity was found on carbonate rock, followed by sandstone. Cyanobacteria were also recorded on an artificial substratum - lime mortar, while cyanobacteria were not found on granite. All detected cyanobacteria seriously impaired the structural and aesthetic integrity of the studied monuments via mechanical and chemical actions, so their presence must not be overlooked.
PB  - Routledge Journals, Taylor & Francis Ltd, Abingdon
T2  - Studies in Conservation
T1  - Diversity of Terrestrial Cyanobacteria Colonizing Selected Stone Monuments in Serbia
VL  - 63
IS  - 5
SP  - 292
EP  - 302
DO  - 10.1080/00393630.2018.1438127
ER  - 

@article{
author = "Popović, Slađana and Stupar, Milos and Unkovic, Nikola and Subakov-Simić, Gordana and Grbic, Milica Ljaljevic",
year = "2018",
abstract = "The presence of biofilms on stone monuments can lead to biodeterioration processes that significantly lower not only the aesthetic value of cultural heritage sites but also cause considerable physical and chemical damage to stone surfaces. In terrestrial environments, cyanobacteria have a significant role in biofilm formation on a variety of natural and artificial stone substrata, including granite, sandstone, limestone, lime mortar, etc. Studies on cyanobacterial diversity and estimation of biodeteriorative activity on stone cultural heritage objects can be very important for conservators and restorers, and cyanobacteria removal from stone monuments is currently a great challenge for conservation science. In that sense, the diversity of terrestrial cyanobacteria was investigated at six localities in Serbia. Samples for cyanobacterial analyses were taken from surface biofilms covering different substrata: granite and lime mortar (The Monument to the Unknown Hero), sandstone (Branko's Bridge, Eiffel's Lock) and carbonate rock (Medieval tombstones from Mramorje and Rastite, Gradac Monastery). A total of 18 cyanobacterial taxa were identified. The highest diversity was found on carbonate rock, followed by sandstone. Cyanobacteria were also recorded on an artificial substratum - lime mortar, while cyanobacteria were not found on granite. All detected cyanobacteria seriously impaired the structural and aesthetic integrity of the studied monuments via mechanical and chemical actions, so their presence must not be overlooked.",
publisher = "Routledge Journals, Taylor & Francis Ltd, Abingdon",
journal = "Studies in Conservation",
title = "Diversity of Terrestrial Cyanobacteria Colonizing Selected Stone Monuments in Serbia",
volume = "63",
number = "5",
pages = "292-302",
doi = "10.1080/00393630.2018.1438127"
}

Popović, S., Stupar, M., Unkovic, N., Subakov-Simić, G.,& Grbic, M. L.. (2018). Diversity of Terrestrial Cyanobacteria Colonizing Selected Stone Monuments in Serbia. in Studies in Conservation
Routledge Journals, Taylor & Francis Ltd, Abingdon., 63(5), 292-302.
https://doi.org/10.1080/00393630.2018.1438127

Popović S, Stupar M, Unkovic N, Subakov-Simić G, Grbic ML. Diversity of Terrestrial Cyanobacteria Colonizing Selected Stone Monuments in Serbia. in Studies in Conservation. 2018;63(5):292-302.
doi:10.1080/00393630.2018.1438127 .

Popović, Slađana, Stupar, Milos, Unkovic, Nikola, Subakov-Simić, Gordana, Grbic, Milica Ljaljevic, "Diversity of Terrestrial Cyanobacteria Colonizing Selected Stone Monuments in Serbia" in Studies in Conservation, 63, no. 5 (2018):292-302,
https://doi.org/10.1080/00393630.2018.1438127 . .

TY  - CONF
AU  - Perić, B
AU  - Simonović, A
AU  - Ivanov, T
AU  - Stupar, S
AU  - Vorkapić, Miloš
AU  - Peković, O
AU  - Svorcan, J
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2927
AB  - Metal membranes are defined as thin steel circular plates. The metal membranes are widely used in the measurement technique and they are constantly loaded over the entire surface. In case that a membrane is loaded with uniform load over the entire surface. In case that the membrane is stiffened over the edge, then it is called a diaphragm. According to the making method membranes are divided into flat and corrugated. Corrugated membranes are used mainly in a low pressure area. Membranes are most commonly made of firm alloy austenitic steel. In this paper numerical and experimental analysis of a thin corrugated diaphragm 24 mm diameter is presented, with variable material thickness and variable corrugations geometry. Experimental tests are conducted on a corrugated stainless steel (AISI 316) diaphragm. Experimental results are compared with numerical results in ANSYS software package. A comparative analysis of the sinusoidal and toroidal diaphragms has shown that there is a higher sensitivity of the sinusoidal diaphragm, that is, if the thickness of the diaphragm increases, and their stiffness is increased. In general, for small pressure ranges from 10 mbar to 50 mbar, the sinusoidal diaphragms have a faster response. © 2018 The Authors.
PB  - Elsevier
C3  - Procedia Structural Integrity
T1  - Design and testing characteristics of thin stainless steel diaphragms
VL  - 13
SP  - 2196
EP  - 2201
DO  - 10.1016/j.prostr.2018.12.141
ER  - 

@conference{
author = "Perić, B and Simonović, A and Ivanov, T and Stupar, S and Vorkapić, Miloš and Peković, O and Svorcan, J",
year = "2018",
abstract = "Metal membranes are defined as thin steel circular plates. The metal membranes are widely used in the measurement technique and they are constantly loaded over the entire surface. In case that a membrane is loaded with uniform load over the entire surface. In case that the membrane is stiffened over the edge, then it is called a diaphragm. According to the making method membranes are divided into flat and corrugated. Corrugated membranes are used mainly in a low pressure area. Membranes are most commonly made of firm alloy austenitic steel. In this paper numerical and experimental analysis of a thin corrugated diaphragm 24 mm diameter is presented, with variable material thickness and variable corrugations geometry. Experimental tests are conducted on a corrugated stainless steel (AISI 316) diaphragm. Experimental results are compared with numerical results in ANSYS software package. A comparative analysis of the sinusoidal and toroidal diaphragms has shown that there is a higher sensitivity of the sinusoidal diaphragm, that is, if the thickness of the diaphragm increases, and their stiffness is increased. In general, for small pressure ranges from 10 mbar to 50 mbar, the sinusoidal diaphragms have a faster response. © 2018 The Authors.",
publisher = "Elsevier",
journal = "Procedia Structural Integrity",
title = "Design and testing characteristics of thin stainless steel diaphragms",
volume = "13",
pages = "2196-2201",
doi = "10.1016/j.prostr.2018.12.141"
}

Perić, B., Simonović, A., Ivanov, T., Stupar, S., Vorkapić, M., Peković, O.,& Svorcan, J.. (2018). Design and testing characteristics of thin stainless steel diaphragms. in Procedia Structural Integrity
Elsevier., 13, 2196-2201.
https://doi.org/10.1016/j.prostr.2018.12.141

Perić B, Simonović A, Ivanov T, Stupar S, Vorkapić M, Peković O, Svorcan J. Design and testing characteristics of thin stainless steel diaphragms. in Procedia Structural Integrity. 2018;13:2196-2201.
doi:10.1016/j.prostr.2018.12.141 .

Perić, B, Simonović, A, Ivanov, T, Stupar, S, Vorkapić, Miloš, Peković, O, Svorcan, J, "Design and testing characteristics of thin stainless steel diaphragms" in Procedia Structural Integrity, 13 (2018):2196-2201,
https://doi.org/10.1016/j.prostr.2018.12.141 . .