The reaction to fire test for fire retardant and for combustible material

Currently the natural materials become popular building material for houses, buildings and recreational property. The risk of fires in residential timber construction or eco houses cannot be completely ruled out, therefore there is a need for proper and correct implementing preventive measures and application of all available solutions, which may reduce the risk of fire as far as possible, to slow down the combustion process, to protect the life of people, animals and also the building itself until arrival members of the Fire and Rescue Services. Fireproofing of combustible materials is a specific area of fire protection. For scientific research as well as for real-life practice, not only their structural and physical properties, but also fire-technical characteristics are really important. The present researchers mostly focus on fire-retardant treatment of wood that is why the authors of this contribution focused on a different combustible material. This research article presents the experimental testing and examination of the reaction to fire test of the selected thermal insulation of hemp fiber that was impregnated by the selected fire retardant in laboratory conditions

The property offender in the context of psychological personality disorders

DOI nepřidělenThe author of the article deals with the problem of the behavior of the offender (the intruder). In the article the author presents the basic terms related to the perpetrators of the proprietary crime, carried out research in Slovakia and in the Czech Republic, and presents the profi le of the perpetrator of the property crime on the basis of these researches. The author focuses on the psychological profi le of the perpetrator in conjunction with dissocial personality disorder. The reason for this review is to know the probability of the possible variants of the perpetrators decision at the crime scene. The article is based on the analytical part of the doctoral thesis, which is based on the theme of simulation of the behavior (proceeding) of the property offender(s), whose aim is, inter alia, appropriately to describe the property offender´s decision making - during breaking into object

Global Economic Impacts of COVID 19 to Increase the Protection of Society By Using Thermal Imaging Cameras to Measure the Temperature of Human Body

Research background: In 2020, a pandemic of COVID-19 has started. One of the symptoms is that a person has an elevated body temperature. One of the preventive measures against the spread of COVID-19 is the body temperature measuring. But this does not immediately mean, that person´s elevated body temperature indicates the presence of COVID-19. It also does not mean, that a person with COVID-19 must have fever. In generally, there is accepted a preventive measure to measure a body temperature, that can help to detect an infected person. The demands for body temperature measuring devices has increased. One of these devices is the thermal security cameras (TSC). Purpose of the article: The aim of this paper is to point out the increased use of the TSC during the global pandemic of COVID-19. At the same time, it is necessary to point out the real benefits of using these devices in relation to global trend and significant economic impacts on society. Methods: The analysis of available materials and data of the implementation of the TCS in relation to COVID-19 crisis. There are case studies elaborated on two manufacturing companies with different approaches to the implementation of preventive measures. Findings & Value added: Firstly, the increased demand for protecting and preventive measures have an impact on the extreme increase in prices for these technologies compared to the pre-pandemic period. Secondly, accepted protecting and safety measures, such as TSC, do not have the expected benefits in relation to COVID-19

New approaches to the analysis of the security environment and their importance for security management

Examination of security environment in many security papers and studies is focused primarily on analysis of external security environment of different countries. Analyzing the current security problems led us to the realization that the security environment is characterized by a systemic arrangement in which there are systems of lower and higher order. We want to demonstrate that to ensure safety of the reference object at a lower level (e.g., small social groups, individuals) it is important to evaluate the security environment of the lower order (i.e., at sub-regional, local and sub-local level). Defining and analyzing security environment at lower levels is a prerequisite for creating effective situational prevention strategies and for improving personal safety of citizens and their property

Designing of Intelligent Video-Surveillance Systems in Road Tunnels Using Software Tools

Video Surveillance Systems (VSSs) are integral parts of road tunnels. Currently, they perform a number of functions, such as ensuring the protection of tunnel technologies, monitoring tunnel operation, or recognising license plates. If VSSs are to be designed to protect the tunnel and its technologies from unauthorised intentional human activity, it is necessary to ensure that they are designed in such a way as to meet the essential functionality requirement of the physical protection system (PPS). In this case, the VSS, as one of the alarm systems, should perform the function of early intrusion detection. The verification of the functionality of the PPS is possible using a software tool to model and simulate various intrusion scenarios. This article provides an example of the use of the SATANO software evaluation tool. The VSS enables multiple applications, such as monitoring, detection, knowledge, and identification. In this paper, the defined current standardised requirements for the design of VSSs in tunnels are considered from the point of view of their possible use for intelligent video analysis, enabling the recognition of various risk situations (e.g., faults or accidents of vehicles). Using the software tool, IP Video Design Tool, the requirements for the design of cameras in tunnels are assessed and adapted from the perspective of the use of intelligent video analysis. In the event that there is a requirement to use the VSS during emergency situations (e.g., fire), it is necessary to assess the operating conditions and period of time through which the VSS would operate in a given tunnel. This article presents the results of the simulation of the spread of a fire in a tunnel and its impact on the operation of the VSS