Publikační činnost Fakulty bezpečnostního inženýrství / Publications of Faculty of Safety Engineering (FBI)
Permanent URI for this collectionhttp://hdl.handle.net/10084/116563
Browse
Recent Submissions
Item type: Item , Untersuchung von Überregulierungen im Brandschutz durch Vorschriften und Genehmigungsverfahren/Analyzing overregulation of fire protection by regulations and approval procedures(VDI Fachmedien, 2024) Brauns, MoritzIm vorliegenden Beitrag wird das Vorhandensein von Überregulierungen innerhalb präskriptiver Anforderungen durch bauordnungsrechtliche Vorschriften und durch Forderungen innerhalb von Genehmigungsverfahren untersucht. Das brandschutztechnische Sicherheitskonzept von Gebäuden wird durch materielle Anforderungen unter Berücksichtigung von Schutzzielen mit bauordnungsrechtlichen Vorgaben bundeslandabhängig festgelegt. Daneben werden Forderungen an den Brandschutz auch innerhalb von Genehmigungsverfahren gestellt. In dieser Untersuchung erfolgt die Identifizierung von Überregulierung mittels deskriptiver Statistik, statistischer Inferenz und qualitativer Inhaltsanalyse basierend auf einer Umfrageerhebung. Die materiellen Anforderungen können dabei weitestgehend nicht als überreguliert bestätigt werden. Vielmehr besteht ein generelles Empfinden zur Überregulierung in Bezug auf die materiellen Anforderungen und in Genehmigungsverfahren, welches sich in bestimmten materiellen Anforderungsbereichen und Gebäudetypen widerspiegelt und dabei in Abhängigkeit der Prüfinstitution steht.Item type: Item , Critical Entities Resilience Assessment (CERA) to small-scale disasters(Elsevier, 2024) Řehák, David; Šplíchalová, Alena; Janečková, Heidi; Oulehlová, Alena; Hromada, Martin; Kontogeorgos, Miltiadis; Ristvej, JozefSince 2022, there has been a significant increase in the importance of critical entities in terms of critical infrastructure protection. The adoption of the Critical Entities Resilience Directive must in EU member states ensure not only the protection of critical infrastructure, but also a sufficient resilience level of the entities themselves. This directive obliges critical entities to take measures to increase their resilience but does not provide any methodological support. A necessary starting point for fulfilling this obligation is knowledge of the current state of critical entities resilience to small-scale disasters. The results of the resilience assessment will then enable critical entities to identify vulnerabilities on the basis of which adequate technical, security and organisational measures can be defined. Therefore, this article presents an entirely new semi-quantitative method, CERA, which has been developed for the comprehensive assessment of entity and infrastructure resilience of critical entities. At the core of this method is a procedure that allows critical entities to self-assess their internal resilience through individual factors, which are defined in detail in this article. In order to facilitate the assessment process, the authors of the article have created the CERA Support Tool, which is supplementary material to this article. The Results section of the article also includes a presentation of a practical application example of the proposed procedure.Item type: Item , Monte Carlo analysis for evacuation in multipurpose event spaces(MDPI, 2024) Snohová, Adéla; Kučera, Petr; Pokorný, Jiří; Bernatík, AlešThis paper addresses the evacuation of people from multipurpose halls and introduces an innovative approach that uses a probabilistic model, specifically the Monte Carlo method, to analyse iterative evacuation processes. The aim is to explore how this modern technology can contribute to the development of effective and safe evacuation plans for mass events. The Monte Carlo method was applied to a specific example of a multipurpose hall that offers different configurations for events such as sports matches, concerts, or performances. The evacuation of people was analysed for two configurations: a hockey match with a capacity of 9500 people and a concert with a capacity of 11,000 people. In both cases, the total evacuation of people from the hall was analysed, and the evacuation time was evaluated when two parameters were changed: speed of movement and preference for door selection. The results of the simulations can provide valuable information for the design of effective safety measures in multipurpose halls and other similar multipurpose venues. This innovative approach to evacuation analysis allows for a comprehensive assessment of the evacuation process, identification of critical areas, and verification of the layout of the space.Item type: Item , Verification of a novel method of detecting faults in medium-voltage systems with covered conductors(Polska Akademia Nauk, 2017) Mišák, Stanislav; Hamacek, Štefan; Bartłomiejczyk, MikołajThis paper describes the use of new methods of detecting faults in medium-voltage overhead lines built of covered conductors. The methods mainly address such faults as falling of a conductor, contacting a conductor with a tree branch, or falling a tree branch across three phases of a medium-voltage conductor. These faults cannot be detected by current digital relay protection systems. Therefore, a new system that can detect the above mentioned faults was developed. After having tested its operation, the system has already been implemented to protect medium-voltage overhead lines built of covered conductors.Item type: Item , Comparative analysis of toxic responses of organic extracts from diesel and selected alternative fuels engine emissions in human lung BEAS-2B cells(MDPI, 2016) Líbalová, Helena; Rossner, Pavel; Vrbová, Kristýna; Brzicová, Táňa; Sikorová, Jitka; Vojtíšek-Lom, Michal; Beranek, Vít; Kléma, Jiří; Ciganek, Miroslav; Neča, Jiří; Pěnčíková, Kateřina; Machala, Miroslav; Topinka, JanThis study used toxicogenomics to identify the complex biological response of human lung BEAS-2B cells treated with organic components of particulate matter in the exhaust of a diesel engine. First, we characterized particles from standard diesel (B0), biodiesel (methylesters of rapeseed oil) in its neat form (B100) and 30% by volume blend with diesel fuel (B30), and neat hydrotreated vegetable oil (NEXBTL100). The concentration of polycyclic aromatic hydrocarbons (PAHs) and their derivatives in organic extracts was the lowest for NEXBTL100 and higher for biodiesel. We further analyzed global gene expression changes in BEAS-2B cells following 4 h and 24 h treatment with extracts. The concentrations of 50 mu g extract/mL induced a similar molecular response. The common processes induced after 4 h treatment included antioxidant defense, metabolism of xenobiotics and lipids, suppression of pro-apoptotic stimuli, or induction of plasminogen activating cascade; 24 h treatment affected fewer processes, particularly those involved in detoxification of xenobiotics, including PAHs. The majority of distinctively deregulated genes detected after both 4 h and 24 h treatment were induced by NEXBTL100; the deregulated genes included, e.g., those involved in antioxidant defense and cell cycle regulation and proliferation. B100 extract, with the highest PAH concentrations, additionally affected several cell cycle regulatory genes and p38 signaling.