141. Modelling intumescent coatings for the fire protection of structural systems : a reviewAndrea Lucherini, Donatella de Silva, 2024, review article Abstract: Purpose
Intumescent coatings are nowadays a dominant passive system used to protect structural materials in case of fire. Due to their reactive swelling behaviour, intumescent coatings are particularly complex materials to be modelled and predicted, which can be extremely useful especially for performance-based fire safety designs. In addition, many parameters influence their performance, and this challenges the definition and quantification of their material properties. Several approaches and models of various complexities are proposed in the literature, and they are reviewed and analysed in a critical literature review.
Design/methodology/approach
Analytical, finite-difference and finite-element methods for modelling intumescent coatings are compared, followed by the definition and quantification of the main physical, thermal, and optical properties of intumescent coatings: swelled thickness, thermal conductivity and resistance, density, specific heat capacity, and emissivity/absorptivity.
Findings
The study highlights the scarce consideration of key influencing factors on the material properties, and the tendency to simplify the problem into effective thermo-physical properties, such as effective thermal conductivity. As a conclusion, the literature review underlines the lack of homogenisation of modelling approaches and material properties, as well as the need for a universal modelling method that can generally simulate the performance of intumescent coatings, combine the large amount of published experimental data, and reliably produce fire-safe performance-based designs.
Research limitations/implications
Due to their limited applicability, high complexity and little comparability, the presented literature review does not focus on analysing and comparing different multi-component models, constituted of many model-specific input parameters. On the contrary, the presented literature review compares various approaches, models and thermo-physical properties which primarily focusses on solving the heat transfer problem through swelling intumescent systems.
Originality/value
The presented literature review analyses and discusses the various modelling approaches to describe and predict the behaviour of swelling intumescent coatings as fire protection for structural materials. Due to the vast variety of available commercial products and potential testing conditions, these data are rarely compared and combined to achieve an overall understanding on the response of intumescent coatings as fire protection measure. The study highlights the lack of information and homogenisation of various modelling approaches, and it underlines the research needs about several aspects related to the intumescent coating behaviour modelling, also providing some useful suggestions for future studies.
Keywords: intumescent coatings, fire protection, modelling, structural fire engineering, fire safety, performance-based design
Published in DiRROS: 17.04.2024; Views: 107; Downloads: 38
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142. Položaj priseljencev na področju zdravja in zdravstvenega varstva v SlovenijiRomana Bešter, Mojca Medvešek, Janez Pirc, 2020, independent scientific component part or a chapter in a monograph Keywords: integracija priseljencev, priseljenci, zdravje, zdravstveno varstvo, Slovenija, integracijska politika
Published in DiRROS: 16.04.2024; Views: 79; Downloads: 24
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144. Razvoj integracijskih programov za priseljence v SlovenijiMojca Medvešek, Romana Bešter, Janez Pirc, 2020, independent scientific component part or a chapter in a monograph Keywords: integracija, integracijska politika, integracijski programi, državljani držav nečlanic Evropske unije, začetna integracija priseljencev, slovenski jezik, Slovenija
Published in DiRROS: 16.04.2024; Views: 91; Downloads: 30
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145. The influence of cytokine gene polymorphisms on the risk of developing gastric cancer in patients with Helicobacter pylori infectionDavid Štubljar, Samo Jeverica, Tomislav Jukić, Miha Skvarč, Tadeja Pintar, Bojan Tepeš, Rajko Kavalar, Borut Štabuc, Alojz Ihan, 2015, original scientific article Keywords: cytokine gene, gastric cancer, Helicobacter pylori infection
Published in DiRROS: 16.04.2024; Views: 86; Downloads: 22
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146. The role of PET-CT in radiotherapy planning of solid tumoursStaša Jelerčič, Mirjana Rajer, 2015, review article Abstract: PET-CT is becoming more and more important in various aspects of oncology. Until recently it was used mainly as part of diagnostic procedures and for evaluation of treatment results. With development of personalized radiotherapy, volumetric and radiobiological characteristics of individual tumour have become integrated in the multistep radiotherapy (RT) planning process. Standard anatomical imaging used to select and delineate RT target volumes can be enriched by the information on tumour biology gained by PET-CT. In this review we explore the current and possible future role of PET-CT in radiotherapy treatment planning. After general explanation, we assess its role in radiotherapy of those solid tumours for which PET-CT is being used most. Conclusions. In the nearby future PET-CT will be an integral part of the most radiotherapy treatment planning procedures in an every-day clinical practice. Apart from a clear role in radiation planning of lung cancer, with forthcoming clinical trials, we will get more evidence of the optimal use of PET-CT in radiotherapy planning of other solid tumours.
Keywords: positron emission therapy, radiotherapy, radiotherapy planning, tumour biology
Published in DiRROS: 16.04.2024; Views: 89; Downloads: 26
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147. Analysis of risk factors for perifocal oedema after endovascular embolization of unruptured intracranial arterial aneurysmsSnezana Lukic, Slobodan Janković, Katarina Šurlan Popović, Dušan Dragič Banković, Peter Popović, Milan Mijailović, 2015, original scientific article Keywords: intracranial aneurysms, enovascular embolization, perianeurysmal oedema, hypertension
Published in DiRROS: 16.04.2024; Views: 72; Downloads: 26
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148. Enhancing balance in Parkinson’s disease patients : a comprehensive literature review on the efficacy of exercise in an enriched environmentAna Ponebšek, Friderika Kresal, Luka Šlosar, 2023, review article Abstract: Various physiotherapeutic methods and approaches play a significant role in the
treatment of patients with Parkinson’s disease, including the use of enriched environments. Virtual reality (VR) as a type of enriched environment has the potential to create
multiple sensory experiences and feedback, influencing various aspects of the patient’s
information processing and response. The suitability for home use and the considerable impact on motivation highlight its advantages over alternative approaches. The
objective of this review is to investigate the impact of VR-based exercise on balance
outcomes among individuals with Parkinson’s disease. The inclusion criteria consisted Parkinson’s disease. The comparable improvements in balance observed between the
experimental and control groups signify the potential effectiveness of VR-based exercises. This underscores the encouragement for further development in this technology,
particularly focusing on fully immersive VR environments, which may yield superior
effects in enhancing balance among individuals with Parkinson’s disease.
of randomized controlled trials (RCTs) that examined the effects of exercise in a VR
environment on individuals’ static and dynamic balance outcomes. In order to gather
relevant studies, we conducted a comprehensive search across three databases. From a
dataset of 625 records, we conducted a comprehensive full-text screening based on specific inclusion and exclusion criteria. This process resulted in the inclusion of 14 RCTs
in our review. The emerging evidence regarding exercising in a VR environment does
not definitively prove its superiority over standard exercise routines. However, studies
have demonstrated that both the experimental and control groups showed comparable improvements in enhancing static and dynamic balance among individuals with
Keywords: virtual reality, Parkinson's disease, balance, rehabilitation
Published in DiRROS: 16.04.2024; Views: 78; Downloads: 37
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149. |
150. 19th conference of the european association for sociology of sport“Transitioning sport – transitioning european societies”, Budapest, Hungary 29 May–2 June 2023 : report on conferenceSaša Pišot, 2023, other component parts Keywords: sports, sociology of sports, doping, social media, conferences, reports
Published in DiRROS: 16.04.2024; Views: 78; Downloads: 32
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